From f17349c96df3a6613e5c38e9a91ab5f2ec8407c5 Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 22 Apr 2025 15:13:25 +0200
Subject: [PATCH 01/24] Commit inicial

---
 .gitattributes                                |   2 +
 .gitignore                                    |  33 +++
 .mvn/wrapper/maven-wrapper.properties         |  19 ++
 mvnw                                          | 259 ++++++++++++++++++
 mvnw.cmd                                      | 149 ++++++++++
 pom.xml                                       |  63 +++++
 .../homework/library/LibraryApplication.java  |  13 +
 src/main/resources/application.properties     |   1 +
 .../library/LibraryApplicationTests.java      |  13 +
 9 files changed, 552 insertions(+)
 create mode 100644 .gitattributes
 create mode 100644 .gitignore
 create mode 100644 .mvn/wrapper/maven-wrapper.properties
 create mode 100644 mvnw
 create mode 100644 mvnw.cmd
 create mode 100644 pom.xml
 create mode 100644 src/main/java/com/homework/library/LibraryApplication.java
 create mode 100644 src/main/resources/application.properties
 create mode 100644 src/test/java/com/homework/library/LibraryApplicationTests.java

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..3b41682a
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..549e00a2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
diff --git a/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties
new file mode 100644
index 00000000..d58dfb70
--- /dev/null
+++ b/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+wrapperVersion=3.3.2
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip
diff --git a/mvnw b/mvnw
new file mode 100644
index 00000000..19529ddf
--- /dev/null
+++ b/mvnw
@@ -0,0 +1,259 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.2
+#
+# Optional ENV vars
+# -----------------
+#   JAVA_HOME - location of a JDK home dir, required when download maven via java source
+#   MVNW_REPOURL - repo url base for downloading maven distribution
+#   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+#   MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+  native_path() { cygpath --path --windows "$1"; }
+  ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+  if [ -n "${JAVA_HOME-}" ]; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+      JAVACCMD="$JAVA_HOME/jre/sh/javac"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+      JAVACCMD="$JAVA_HOME/bin/javac"
+
+      if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+        echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+        echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+        return 1
+      fi
+    fi
+  else
+    JAVACMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v java
+    )" || :
+    JAVACCMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v javac
+    )" || :
+
+    if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+      echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+      return 1
+    fi
+  fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+  str="${1:-}" h=0
+  while [ -n "$str" ]; do
+    char="${str%"${str#?}"}"
+    h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+    str="${str#?}"
+  done
+  printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+  printf %s\\n "$1" >&2
+  exit 1
+}
+
+trim() {
+  # MWRAPPER-139:
+  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+  #   Needed for removing poorly interpreted newline sequences when running in more
+  #   exotic environments such as mingw bash on Windows.
+  printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+  case "${key-}" in
+  distributionUrl) distributionUrl=$(trim "${value-}") ;;
+  distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+  esac
+done <"${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in ${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+  MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+  case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+  *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+  :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+  :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+  :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+  *)
+    echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+    distributionPlatform=linux-amd64
+    ;;
+  esac
+  distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+  ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${0##*/mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+  unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+  exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+  verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+  trap clean HUP INT TERM EXIT
+else
+  die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+  distributionUrl="${distributionUrl%.zip}.tar.gz"
+  distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+  verbose "Found wget ... using wget"
+  wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+  verbose "Found curl ... using curl"
+  curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+  verbose "Falling back to use Java to download"
+  javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+  targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+  cat >"$javaSource" <<-END
+	public class Downloader extends java.net.Authenticator
+	{
+	  protected java.net.PasswordAuthentication getPasswordAuthentication()
+	  {
+	    return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+	  }
+	  public static void main( String[] args ) throws Exception
+	  {
+	    setDefault( new Downloader() );
+	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+	  }
+	}
+	END
+  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+  verbose " - Compiling Downloader.java ..."
+  "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+  verbose " - Running Downloader.java ..."
+  "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+  distributionSha256Result=false
+  if [ "$MVN_CMD" = mvnd.sh ]; then
+    echo "Checksum validation is not supported for maven-mvnd." >&2
+    echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  elif command -v sha256sum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  elif command -v shasum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+    echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  fi
+  if [ $distributionSha256Result = false ]; then
+    echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+    echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+    exit 1
+  fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+  unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+  tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
diff --git a/mvnw.cmd b/mvnw.cmd
new file mode 100644
index 00000000..249bdf38
--- /dev/null
+++ b/mvnw.cmd
@@ -0,0 +1,149 @@
+<# : batch portion
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version 3.3.2
+@REM
+@REM Optional ENV vars
+@REM   MVNW_REPOURL - repo url base for downloading maven distribution
+@REM   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM   MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_ERROR__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+  IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@SET MVNW_USERNAME=
+@SET MVNW_PASSWORD=
+@IF NOT "%__MVNW_CMD__%"=="" (%__MVNW_CMD__% %*)
+@echo Cannot start maven from wrapper >&2 && exit /b 1
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+  $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+  Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+
+switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
+  "maven-mvnd-*" {
+    $USE_MVND = $true
+    $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
+    $MVN_CMD = "mvnd.cmd"
+    break
+  }
+  default {
+    $USE_MVND = $false
+    $MVN_CMD = $script -replace '^mvnw','mvn'
+    break
+  }
+}
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+if ($env:MVNW_REPOURL) {
+  $MVNW_REPO_PATTERN = if ($USE_MVND) { "/org/apache/maven/" } else { "/maven/mvnd/" }
+  $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace '^.*'+$MVNW_REPO_PATTERN,'')"
+}
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
+$MAVEN_HOME_PARENT = "$HOME/.m2/wrapper/dists/$distributionUrlNameMain"
+if ($env:MAVEN_USER_HOME) {
+  $MAVEN_HOME_PARENT = "$env:MAVEN_USER_HOME/wrapper/dists/$distributionUrlNameMain"
+}
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.MD5]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+  Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+  exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+  Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+  if ($TMP_DOWNLOAD_DIR.Exists) {
+    try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+    catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+  }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+  $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
+if ($distributionSha256Sum) {
+  if ($USE_MVND) {
+    Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
+  }
+  Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
+  if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
+    Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
+  }
+}
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+  Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+  if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+    Write-Error "fail to move MAVEN_HOME"
+  }
+} finally {
+  try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+  catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 00000000..6796f012
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>3.4.4</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.homework</groupId>
+	<artifactId>library</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>library</name>
+	<description>Demo project for Spring Boot</description>
+	<url/>
+	<licenses>
+		<license/>
+	</licenses>
+	<developers>
+		<developer/>
+	</developers>
+	<scm>
+		<connection/>
+		<developerConnection/>
+		<tag/>
+		<url/>
+	</scm>
+	<properties>
+		<java.version>21</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>com.mysql</groupId>
+			<artifactId>mysql-connector-j</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
diff --git a/src/main/java/com/homework/library/LibraryApplication.java b/src/main/java/com/homework/library/LibraryApplication.java
new file mode 100644
index 00000000..1c25dd01
--- /dev/null
+++ b/src/main/java/com/homework/library/LibraryApplication.java
@@ -0,0 +1,13 @@
+package com.homework.library;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class LibraryApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(LibraryApplication.class, args);
+	}
+
+}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
new file mode 100644
index 00000000..0a5191d2
--- /dev/null
+++ b/src/main/resources/application.properties
@@ -0,0 +1 @@
+spring.application.name=library
diff --git a/src/test/java/com/homework/library/LibraryApplicationTests.java b/src/test/java/com/homework/library/LibraryApplicationTests.java
new file mode 100644
index 00000000..ff9f973b
--- /dev/null
+++ b/src/test/java/com/homework/library/LibraryApplicationTests.java
@@ -0,0 +1,13 @@
+package com.homework.library;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class LibraryApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}

From 19bbbd63e9f3932fbaedd67ef08c5d890e4c3fc6 Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 22 Apr 2025 15:24:53 +0200
Subject: [PATCH 02/24] Commit con carpetas

---
 src/main/java/com/homework/library/LibraryApplication.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/homework/library/LibraryApplication.java b/src/main/java/com/homework/library/LibraryApplication.java
index 1c25dd01..1fbd794e 100644
--- a/src/main/java/com/homework/library/LibraryApplication.java
+++ b/src/main/java/com/homework/library/LibraryApplication.java
@@ -1,5 +1,5 @@
 package com.homework.library;
-
+//commit con carpetas
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 

From 3ec9134d6e3decca4bb029dc7466e52c3234967d Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 22 Apr 2025 15:28:51 +0200
Subject: [PATCH 03/24] Commit con carpetas en test

---
 src/main/java/com/homework/library/LibraryApplication.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/homework/library/LibraryApplication.java b/src/main/java/com/homework/library/LibraryApplication.java
index 1fbd794e..509e056d 100644
--- a/src/main/java/com/homework/library/LibraryApplication.java
+++ b/src/main/java/com/homework/library/LibraryApplication.java
@@ -1,5 +1,5 @@
 package com.homework.library;
-//commit con carpetas
+//commit con carpetas en test
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 

From 149047416a1971a2596a01070a53e185ffdb02f2 Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 22 Apr 2025 15:40:27 +0200
Subject: [PATCH 04/24] Commit creacion clases

---
 .../com/homework/library/models/Issue.java    | 57 +++++++++++++++++++
 .../com/homework/library/models/Student.java  | 27 +++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 src/main/java/com/homework/library/models/Issue.java
 create mode 100644 src/main/java/com/homework/library/models/Student.java

diff --git a/src/main/java/com/homework/library/models/Issue.java b/src/main/java/com/homework/library/models/Issue.java
new file mode 100644
index 00000000..5240ae08
--- /dev/null
+++ b/src/main/java/com/homework/library/models/Issue.java
@@ -0,0 +1,57 @@
+package com.homework.library.models;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+public class Issue {
+    private int issueId;
+    private String issueDate;
+    private String returnDate;
+    private Student issueStudent;
+    private Book issueBook;
+    private static int idCounter = 1;
+
+    public Issue(String issueDate, String returnDate, Student issueStudent, Book issueBook) {
+        this.issueId = idCounter++;
+        this.issueDate = issueDate;
+        this.returnDate = returnDate;
+        this.issueStudent = issueStudent;
+        this.issueBook = issueBook;
+    }
+
+    public int getIssueId() {
+        return issueId;
+    }
+
+    public String getIssueDate() {
+        return issueDate;
+    }
+
+    public void setIssueDate(String issueDate) {
+        this.issueDate = issueDate;
+    }
+
+    public String getReturnDate() {
+        return returnDate;
+    }
+
+    public void setReturnDate(String returnDate) {
+        this.returnDate = returnDate;
+    }
+
+    public Student getIssueStudent() {
+        return issueStudent;
+    }
+
+    public void setIssueStudent(Student issueStudent) {
+        this.issueStudent = issueStudent;
+    }
+
+    public Book getIssueBook() {
+        return issueBook;
+    }
+
+    public void setIssueBook(Book issueBook) {
+        this.issueBook = issueBook;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/homework/library/models/Student.java b/src/main/java/com/homework/library/models/Student.java
new file mode 100644
index 00000000..d4f71b09
--- /dev/null
+++ b/src/main/java/com/homework/library/models/Student.java
@@ -0,0 +1,27 @@
+package com.homework.library.models;
+
+public class Student {
+    private String usn;
+    private String name;
+
+    public Student(String usn, String name) {
+        this.usn = usn;
+        this.name = name;
+    }
+
+    public String getUsn() {
+        return usn;
+    }
+
+    public void setUsn(String usn) {
+        this.usn = usn;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

From 8d4de6f8e4e3b274d91cb5eaf7074aed3322a0e6 Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 22 Apr 2025 15:47:51 +0200
Subject: [PATCH 05/24] Commit para ver carpetas

---
 src/main/java/com/homework/library/models/Student.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/main/java/com/homework/library/models/Student.java b/src/main/java/com/homework/library/models/Student.java
index d4f71b09..dce87570 100644
--- a/src/main/java/com/homework/library/models/Student.java
+++ b/src/main/java/com/homework/library/models/Student.java
@@ -25,3 +25,4 @@ public void setName(String name) {
         this.name = name;
     }
 }
+//commit
\ No newline at end of file

From d51700835718f4e7f47c56e5b3767a71fd9f2156 Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 22 Apr 2025 15:52:02 +0200
Subject: [PATCH 06/24] Commit para ver carpetas 2

---
 src/main/java/com/homework/library/repositories/prueba.java | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 src/main/java/com/homework/library/repositories/prueba.java

diff --git a/src/main/java/com/homework/library/repositories/prueba.java b/src/main/java/com/homework/library/repositories/prueba.java
new file mode 100644
index 00000000..5c98ac19
--- /dev/null
+++ b/src/main/java/com/homework/library/repositories/prueba.java
@@ -0,0 +1,4 @@
+package com.homework.library.repositories;
+
+public interface prueba {
+}

From ce963b8e45bbbbcd1ba629348b54cdb11cccfb12 Mon Sep 17 00:00:00 2001
From: Saiguer10 <eljosemsp@gmail.com>
Date: Tue, 22 Apr 2025 16:05:50 +0200
Subject: [PATCH 07/24] =?UTF-8?q?A=C3=B1adida=20clase=20Author=20ironlibra?=
 =?UTF-8?q?ry?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/com/homework/library/Author.java | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 src/main/java/com/homework/library/Author.java

diff --git a/src/main/java/com/homework/library/Author.java b/src/main/java/com/homework/library/Author.java
new file mode 100644
index 00000000..e5432cdd
--- /dev/null
+++ b/src/main/java/com/homework/library/Author.java
@@ -0,0 +1,4 @@
+package com.homework.library;
+
+public class Author {
+}

From f40ef58a26fc4d08da85adea39648d38013bf77a Mon Sep 17 00:00:00 2001
From: Saiguer10 <eljosemsp@gmail.com>
Date: Tue, 22 Apr 2025 16:08:06 +0200
Subject: [PATCH 08/24] commit creacion clase

---
 .../java/com/homework/library/Author.java     | 43 ++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/homework/library/Author.java b/src/main/java/com/homework/library/Author.java
index e5432cdd..e71aba94 100644
--- a/src/main/java/com/homework/library/Author.java
+++ b/src/main/java/com/homework/library/Author.java
@@ -1,4 +1,45 @@
 package com.homework.library;
 
 public class Author {
-}
+    // Variables privadas
+    private int authorId; // Autoincrementada
+    private String name;
+    private String email;
+    private Book authorBook; // Relación uno a uno con la clase Libro
+    private static int nextId = 1; // Para autoincrementar el ID
+
+    public Author(String name, String email, Book authorBook) {
+        this.authorId = nextId++;
+        this.name = name;
+        this.email = email;
+        this.authorBook = authorBook;
+    }
+
+    public int getAuthorId() {
+        return authorId;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public Book getAuthorBook() {
+        return authorBook;
+    }
+
+    public void setAuthorBook(Book authorBook) {
+        this.authorBook = authorBook;
+    }
+}
\ No newline at end of file

From 70ca271199e9ca21a3ccab3d66dd11f8418ad22f Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 22 Apr 2025 16:11:59 +0200
Subject: [PATCH 09/24] Commit cambio lugar archivo

---
 .../java/com/homework/library/Author.java     | 45 -------------------
 1 file changed, 45 deletions(-)
 delete mode 100644 src/main/java/com/homework/library/Author.java

diff --git a/src/main/java/com/homework/library/Author.java b/src/main/java/com/homework/library/Author.java
deleted file mode 100644
index e71aba94..00000000
--- a/src/main/java/com/homework/library/Author.java
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.homework.library;
-
-public class Author {
-    // Variables privadas
-    private int authorId; // Autoincrementada
-    private String name;
-    private String email;
-    private Book authorBook; // Relación uno a uno con la clase Libro
-    private static int nextId = 1; // Para autoincrementar el ID
-
-    public Author(String name, String email, Book authorBook) {
-        this.authorId = nextId++;
-        this.name = name;
-        this.email = email;
-        this.authorBook = authorBook;
-    }
-
-    public int getAuthorId() {
-        return authorId;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(String name) {
-        this.name = name;
-    }
-
-    public String getEmail() {
-        return email;
-    }
-
-    public void setEmail(String email) {
-        this.email = email;
-    }
-
-    public Book getAuthorBook() {
-        return authorBook;
-    }
-
-    public void setAuthorBook(Book authorBook) {
-        this.authorBook = authorBook;
-    }
-}
\ No newline at end of file

From dc4d844ae32cc370d725f28bb9743eda00a2926f Mon Sep 17 00:00:00 2001
From: Saiguer10 <eljosemsp@gmail.com>
Date: Tue, 22 Apr 2025 16:20:50 +0200
Subject: [PATCH 10/24] commit creacion clase Author ok

---
 .../com/homework/library/models/Author.java   | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/main/java/com/homework/library/models/Author.java

diff --git a/src/main/java/com/homework/library/models/Author.java b/src/main/java/com/homework/library/models/Author.java
new file mode 100644
index 00000000..bdd3e14d
--- /dev/null
+++ b/src/main/java/com/homework/library/models/Author.java
@@ -0,0 +1,45 @@
+package com.homework.library.models;
+
+public class Author {
+    private int authorId;
+    private String name;
+    private String email;
+    private Book authorBook;
+    private static int nextId = 1;
+
+
+    public Author(String name, String email, Book authorBook) {
+        this.authorId = nextId++;
+        this.name = name;
+        this.email = email;
+        this.authorBook = authorBook;
+    }
+
+    public int getAuthorId() {
+        return authorId;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public Book getAuthorBook() {
+        return authorBook;
+    }
+
+    public void setAuthorBook(Book authorBook) {
+        this.authorBook = authorBook;
+    }
+

From a006375a065440838557ec8ed100c5873c5f4848 Mon Sep 17 00:00:00 2001
From: Josemargal <126793937+Josemargal@users.noreply.github.com>
Date: Wed, 23 Apr 2025 12:19:59 +0200
Subject: [PATCH 11/24] clase Book

---
 .../com/homework/library/models/Book.java     | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 src/main/java/com/homework/library/models/Book.java

diff --git a/src/main/java/com/homework/library/models/Book.java b/src/main/java/com/homework/library/models/Book.java
new file mode 100644
index 00000000..59612a09
--- /dev/null
+++ b/src/main/java/com/homework/library/models/Book.java
@@ -0,0 +1,51 @@
+package com.homework.library.models;
+
+public class Book {
+    // Private attributes
+    private String isbn;
+    private String title;
+    private String category;
+    private int quantity;
+
+    // Constructor
+    public Book(String isbn, String title, String category, int quantity) {
+        this.isbn = isbn;
+        this.title = title;
+        this.category = category;
+        this.quantity = quantity;
+    }
+
+    // Getters
+    public String getIsbn() {
+        return isbn;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getCategory() {
+        return category;
+    }
+
+    public int getQuantity() {
+        return quantity;
+    }
+
+    // Setters
+    public void setIsbn(String isbn) {
+        this.isbn = isbn;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setCategory(String category) {
+        this.category = category;
+    }
+
+    public void setQuantity(int quantity) {
+        this.quantity = quantity;
+    }
+}

From 2eaf1cb6aa580abceab4d913aa04f8b1383087bd Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Wed, 23 Apr 2025 12:32:27 +0200
Subject: [PATCH 12/24] =?UTF-8?q?A=C3=B1adidos=20archivos=20de=20modelos?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../com/homework/library/models/Author.java   | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/main/java/com/homework/library/models/Author.java

diff --git a/src/main/java/com/homework/library/models/Author.java b/src/main/java/com/homework/library/models/Author.java
new file mode 100644
index 00000000..e71aba94
--- /dev/null
+++ b/src/main/java/com/homework/library/models/Author.java
@@ -0,0 +1,45 @@
+package com.homework.library;
+
+public class Author {
+    // Variables privadas
+    private int authorId; // Autoincrementada
+    private String name;
+    private String email;
+    private Book authorBook; // Relación uno a uno con la clase Libro
+    private static int nextId = 1; // Para autoincrementar el ID
+
+    public Author(String name, String email, Book authorBook) {
+        this.authorId = nextId++;
+        this.name = name;
+        this.email = email;
+        this.authorBook = authorBook;
+    }
+
+    public int getAuthorId() {
+        return authorId;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public Book getAuthorBook() {
+        return authorBook;
+    }
+
+    public void setAuthorBook(Book authorBook) {
+        this.authorBook = authorBook;
+    }
+}
\ No newline at end of file

From 8cbe9d6fe2378d8a0d191d154f05cf8e5a2ca61c Mon Sep 17 00:00:00 2001
From: Saiguer10 <eljosemsp@gmail.com>
Date: Wed, 23 Apr 2025 12:34:58 +0200
Subject: [PATCH 13/24] commit resuelto problema llave

---
 src/main/java/com/homework/library/models/Author.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/homework/library/models/Author.java b/src/main/java/com/homework/library/models/Author.java
index bdd3e14d..4f7c935f 100644
--- a/src/main/java/com/homework/library/models/Author.java
+++ b/src/main/java/com/homework/library/models/Author.java
@@ -42,4 +42,4 @@ public Book getAuthorBook() {
     public void setAuthorBook(Book authorBook) {
         this.authorBook = authorBook;
     }
-
+}

From ca9d973640aaa3fe3dde68e46658881b52419f9b Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Wed, 23 Apr 2025 12:50:36 +0200
Subject: [PATCH 14/24] Commit cambio git ignore

---
 .gitignore                                        | 5 ++++-
 src/main/resources/application.properties.example | 7 +++++++
 2 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 src/main/resources/application.properties.example

diff --git a/.gitignore b/.gitignore
index 549e00a2..0e78d4a7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,4 +30,7 @@ build/
 !**/src/test/**/build/
 
 ### VS Code ###
-.vscode/
+.vscode
+
+### SQL###
+.application.properties
\ No newline at end of file
diff --git a/src/main/resources/application.properties.example b/src/main/resources/application.properties.example
new file mode 100644
index 00000000..9b7b8a48
--- /dev/null
+++ b/src/main/resources/application.properties.example
@@ -0,0 +1,7 @@
+spring.application.name=22_ABR
+spring.datasource.url=jdbc:mysql://localhost:3306/
+spring.datasource.username=root
+spring.datasource.password=1234
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+
+spring.jpa.hibernate.ddl-auto=validate
\ No newline at end of file

From 206eb2ce50b212278defa1ad43a903fe99a5ac30 Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Wed, 23 Apr 2025 17:27:03 +0200
Subject: [PATCH 15/24] Commit con menu

---
 pom.xml                                       |   5 +
 .../homework/library/LibraryApplication.java  | 244 +++++++++++++++++-
 .../com/homework/library/models/Author.java   |  55 ++--
 .../com/homework/library/models/Book.java     |  60 ++---
 .../library/models/DatabaseInitializer.java   |  39 +++
 .../com/homework/library/models/Issue.java    |  76 +++---
 .../com/homework/library/models/Student.java  |  34 +--
 .../repositories/AuthorRepository.java        |   8 +
 .../library/repositories/BookRepository.java  |  11 +
 .../repositories/StudentRepository.java       |   8 +
 src/main/resources/application.properties     |   7 +
 .../resources/application.properties.example  |   2 +-
 12 files changed, 428 insertions(+), 121 deletions(-)
 create mode 100644 src/main/java/com/homework/library/models/DatabaseInitializer.java
 create mode 100644 src/main/java/com/homework/library/repositories/AuthorRepository.java
 create mode 100644 src/main/java/com/homework/library/repositories/BookRepository.java
 create mode 100644 src/main/java/com/homework/library/repositories/StudentRepository.java

diff --git a/pom.xml b/pom.xml
index 6796f012..1cd4198a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,6 +49,11 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-jdbc</artifactId>
+		</dependency>
+
 	</dependencies>
 
 	<build>
diff --git a/src/main/java/com/homework/library/LibraryApplication.java b/src/main/java/com/homework/library/LibraryApplication.java
index 509e056d..affc7ba4 100644
--- a/src/main/java/com/homework/library/LibraryApplication.java
+++ b/src/main/java/com/homework/library/LibraryApplication.java
@@ -1,13 +1,251 @@
 package com.homework.library;
-//commit con carpetas en test
+
+import com.homework.library.models.Book;
+import com.homework.library.models.Author;
+import com.homework.library.models.Student;
+import com.homework.library.repositories.BookRepository;
+import com.homework.library.repositories.AuthorRepository;
+import com.homework.library.repositories.StudentRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.transaction.annotation.Transactional; // Importante para la transacción
+
+import java.util.List;
+import java.util.Optional;
+import java.util.Scanner;
 
 @SpringBootApplication
-public class LibraryApplication {
+@ComponentScan(basePackages = "com.homework.library") // Asegura que Spring escanee tus componentes
+public class LibraryApplication implements CommandLineRunner {
+
+	private final BookRepository bookRepository;
+	private final AuthorRepository authorRepository;
+	private final StudentRepository studentRepository;
+	private final Scanner scanner = new Scanner(System.in);
+
+	@Autowired
+	public LibraryApplication(BookRepository bookRepository, AuthorRepository authorRepository, StudentRepository studentRepository) {
+		this.bookRepository = bookRepository;
+		this.authorRepository = authorRepository;
+		this.studentRepository = studentRepository;
+	}
 
 	public static void main(String[] args) {
 		SpringApplication.run(LibraryApplication.class, args);
 	}
 
-}
+	@Override
+	public void run(String... args) {
+		displayMenu();
+	}
+
+	public void displayMenu() {
+		boolean exit = false;
+		while (!exit) {
+			System.out.println("\n--- Sistema de Gestión de Biblioteca ---");
+			System.out.println("1. Añadir un libro");
+			System.out.println("2. Buscar libro por título");
+			System.out.println("3. Buscar libro por categoría");
+			System.out.println("4. Buscar libro por autor");
+			System.out.println("5. Listar todos los libros con autor");
+			System.out.println("6. Prestar libro a estudiante");
+			System.out.println("7. Listar libros por USN");
+			System.out.println("8. Borrar un libro");
+			System.out.println("9. Salir");
+			System.out.print("Ingrese su opción: ");
+
+			int choice = scanner.nextInt();
+			scanner.nextLine(); // Consume la nueva línea
+
+			switch (choice) {
+				case 1:
+					addBook();
+					break;
+				case 2:
+					searchBookByTitle();
+					break;
+				case 3:
+					searchBookByCategory();
+					break;
+				case 4:
+					searchBookByAuthor();
+					break;
+				case 5:
+					listAllBooksWithAuthors();
+					break;
+				case 6:
+					issueBookToStudent();
+					break;
+				case 7:
+					listBooksByUsn();
+					break;
+				case 8:
+					deleteBook();
+					break;
+				case 9:
+					exit = true;
+					System.out.println("Saliendo...");
+					break;
+				default:
+					System.out.println("Opción inválida. Por favor, intente de nuevo.");
+			}
+		}
+	}
+
+	private void addBook() {
+		System.out.println("\n--- Añadir un Libro ---");
+		System.out.print("Ingrese ISBN: ");
+		String isbn = scanner.nextLine();
+		System.out.print("Ingrese Título: ");
+		String title = scanner.nextLine();
+		System.out.print("Ingrese Categoría: ");
+		String category = scanner.nextLine();
+		System.out.print("Ingrese Cantidad: ");
+		int quantity = scanner.nextInt();
+		scanner.nextLine(); // Consume la nueva línea
+
+		Book book = new Book(isbn, title, category, quantity);
+		bookRepository.save(book);
+
+		System.out.print("Ingrese Nombre del Autor: ");
+		String authorName = scanner.nextLine();
+		System.out.print("Ingrese Email del Autor: ");
+		String authorEmail = scanner.nextLine();
+
+		Author author = new Author(authorName, authorEmail, book);
+		authorRepository.save(author);
+
+		System.out.println("Libro añadido exitosamente!");
+
+	}
+
+	private void searchBookByTitle() {
+		System.out.println("\n--- Buscar Libro por Título ---");
+		System.out.print("Ingrese título a buscar: ");
+		String title = scanner.nextLine();
+		List<Book> books = bookRepository.findAll().stream()
+				.filter(b -> b.getTitle().toLowerCase().contains(title.toLowerCase()))
+				.toList();
+		displayBooks(books);
+	}
+
+	private void searchBookByCategory() {
+		System.out.println("\n--- Buscar Libro por Categoría ---");
+		System.out.print("Ingrese categoría a buscar: ");
+		String category = scanner.nextLine();
+		List<Book> books = bookRepository.findAll().stream()
+				.filter(b -> b.getCategory().toLowerCase().contains(category.toLowerCase()))
+				.toList();
+		displayBooks(books);
+	}
+
+	private void searchBookByAuthor() {
+		System.out.println("\n--- Buscar Libro por Autor ---");
+		System.out.print("Ingrese nombre del autor a buscar: ");
+		String authorName = scanner.nextLine();
+		List<Book> books = bookRepository.findAll().stream()
+				.filter(book -> {
+					Optional<Author> author = authorRepository.findAll().stream()
+							.filter(a -> a.getAuthorBook() != null && a.getAuthorBook().equals(book))
+							.findFirst();
+					return author.isPresent() && author.get().getName().toLowerCase().contains(authorName.toLowerCase());
+				})
+				.toList();
+		displayBooks(books);
+	}
+
+	private void listAllBooksWithAuthors() {
+		System.out.println("\n--- Listar Todos los Libros con Autores ---");
+		List<Book> books = bookRepository.findAll();
+		if (books.isEmpty()) {
+			System.out.println("No se encontraron libros.");
+		} else {
+			System.out.println("ISBN\tTítulo\tCategoría\tCantidad\tNombre del Autor\tEmail del Autor");
+			for (Book book : books) {
+				Optional<Author> author = authorRepository.findAll().stream()
+						.filter(a -> a.getAuthorBook() != null && a.getAuthorBook().equals(book))
+						.findFirst();
+				if (author.isPresent()) {
+					System.out.println(book.getIsbn() + "\t" + book.getTitle() + "\t" + book.getCategory() + "\t" +
+							book.getQuantity() + "\t" + author.get().getName() + "\t" + author.get().getEmail());
+				} else {
+					System.out.println(book.getIsbn() + "\t" + book.getTitle() + "\t" + book.getCategory() + "\t" +
+							book.getQuantity() + "\t" + "Sin Autor" + "\t" + "Sin Autor");
+				}
+			}
+		}
+	}
+
+	private void issueBookToStudent() {
+		System.out.println("\n--- Prestar Libro a Estudiante ---");
+		System.out.print("Ingrese USN del Estudiante: ");
+		String usn = scanner.nextLine();
+		System.out.print("Ingrese Nombre del Estudiante: ");
+		String studentName = scanner.nextLine();
+		System.out.print("Ingrese ISBN del Libro a Prestar: ");
+		String isbn = scanner.nextLine();
+		System.out.print("Ingrese Fecha de Préstamo: ");
+		String issueDate = scanner.nextLine();
+		System.out.print("Ingrese Fecha de Devolución: ");
+		String returnDate = scanner.nextLine();
+
+		Optional<Book> book = bookRepository.findById(String.valueOf(Long.valueOf(isbn)));
+		Optional<Student> student = studentRepository.findById(String.valueOf(Long.valueOf(usn)));
+
+		if (book.isPresent() && book.get().getQuantity() > 0) {
+			Student student1 = new Student(usn, studentName);
+			studentRepository.save(student1);
+			book.get().setQuantity(book.get().getQuantity() - 1);
+			bookRepository.save(book.get());
+			System.out.println("Libro prestado exitosamente!");
+		} else {
+			System.out.println("El libro no está disponible o el estudiante no existe.");
+		}
+	}
+
+	private void listBooksByUsn() {
+		System.out.println("\n--- Listar Libros por USN ---");
+		System.out.print("Ingrese USN del Estudiante: ");
+		String usn = scanner.nextLine();
+		Optional<Student> student = studentRepository.findById(String.valueOf(Long.valueOf(usn)));
+		if (student.isPresent()) {
+			System.out.println("Funcionalidad no implementada aún");
+		} else {
+			System.out.println("Estudiante no encontrado");
+		}
+	}
+
+    @Transactional
+	private void deleteBook() {
+		System.out.println("\n--- Borrar un Libro ---");
+		System.out.print("Ingrese el ISBN del libro a borrar: ");
+		String isbn = scanner.nextLine();
+
+		try {
+			// Primero, buscamos el libro para obtener su ID (si es necesario)
+			Optional<Book> bookToDelete = bookRepository.findById(String.valueOf(Long.valueOf(isbn)));
+			if (bookToDelete.isPresent()) {
+				bookRepository.delete(bookToDelete.get()); // Borramos el libro
+				System.out.println("Libro borrado exitosamente!");
+			} else {
+				System.out.println("No se encontró ningún libro con ese ISBN.");
+			}
+		} catch (Exception e) {
+			System.out.println("Error al borrar el libro: " + e.getMessage());
+		}
+	}
+
+	private void displayBooks(List<Book> books) {
+		if (books.isEmpty()) {
+			System.out.println("No se encontraron libros.");
+		} else {
+			System.out.println("ISBN\tTítulo\tCategoría\tCantidad");
+			for (Book book : books) {
+				System.out.println(book.getIsbn() + "\t" + book.getTitle() + "\t" + book.getCategory() + "\t" + book.getQuantity());
+			}
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/com/homework/library/models/Author.java b/src/main/java/com/homework/library/models/Author.java
index 4f7c935f..89ec4d0b 100644
--- a/src/main/java/com/homework/library/models/Author.java
+++ b/src/main/java/com/homework/library/models/Author.java
@@ -1,45 +1,42 @@
 package com.homework.library.models;
 
+import jakarta.persistence.*;
+
+@Entity
 public class Author {
-    private int authorId;
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long authorId;  // Use Long for IDs (more scalable)
     private String name;
     private String email;
-    private Book authorBook;
-    private static int nextId = 1;
-
 
-    public Author(String name, String email, Book authorBook) {
-        this.authorId = nextId++;
-        this.name = name;
-        this.email = email;
-        this.authorBook = authorBook;
-    }
-
-    public int getAuthorId() {
-        return authorId;
-    }
+    @ManyToOne
+    @JoinColumn(name = "book_isbn", referencedColumnName = "isbn") // Corrected column name
+    private Book book;  // Changed name to 'book' for clarity
 
-    public String getName() {
-        return name;
+    public Author(String joshuaBloch, String mail) {
     }
 
-    public void setName(String name) {
+    public Author(String name, String email, Book book) {
         this.name = name;
+        this.email = email;
+        this.book = book;
     }
 
-    public String getEmail() {
-        return email;
-    }
+    // Getters and Setters
+    public Long getAuthorId() { return authorId; }
+    public void setAuthorId(Long authorId) { this.authorId = authorId; }
 
-    public void setEmail(String email) {
-        this.email = email;
-    }
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
 
-    public Book getAuthorBook() {
-        return authorBook;
-    }
+    public String getEmail() { return email; }
+    public void setEmail(String email) { this.email = email; }
+
+    public Book getBook() { return book; }
+    public void setBook(Book book) { this.book = book; }
 
-    public void setAuthorBook(Book authorBook) {
-        this.authorBook = authorBook;
+    public Object getAuthorBook() {
+        return null;
     }
-}
+}
\ No newline at end of file
diff --git a/src/main/java/com/homework/library/models/Book.java b/src/main/java/com/homework/library/models/Book.java
index 59612a09..6b305114 100644
--- a/src/main/java/com/homework/library/models/Book.java
+++ b/src/main/java/com/homework/library/models/Book.java
@@ -1,13 +1,28 @@
 package com.homework.library.models;
 
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Column;
+
+@Entity
 public class Book {
-    // Private attributes
+
+    @Id
     private String isbn;
+
+    @Column(nullable = false)  // Added not-null constraint
     private String title;
+
+    @Column(nullable = false)
     private String category;
+
     private int quantity;
 
-    // Constructor
+    public Book() {
+    }
+
     public Book(String isbn, String title, String category, int quantity) {
         this.isbn = isbn;
         this.title = title;
@@ -15,37 +30,16 @@ public Book(String isbn, String title, String category, int quantity) {
         this.quantity = quantity;
     }
 
-    // Getters
-    public String getIsbn() {
-        return isbn;
-    }
-
-    public String getTitle() {
-        return title;
-    }
+    // Getters and Setters
+    public String getIsbn() { return isbn; }
+    public void setIsbn(String isbn) { this.isbn = isbn; }
 
-    public String getCategory() {
-        return category;
-    }
+    public String getTitle() { return title; }
+    public void setTitle(String title) { this.title = title; }
 
-    public int getQuantity() {
-        return quantity;
-    }
+    public String getCategory() { return category; }
+    public void setCategory(String category) { this.category = category; }
 
-    // Setters
-    public void setIsbn(String isbn) {
-        this.isbn = isbn;
-    }
-
-    public void setTitle(String title) {
-        this.title = title;
-    }
-
-    public void setCategory(String category) {
-        this.category = category;
-    }
-
-    public void setQuantity(int quantity) {
-        this.quantity = quantity;
-    }
-}
+    public int getQuantity() { return quantity; }
+    public void setQuantity(int quantity) { this.quantity = quantity; }
+}
\ No newline at end of file
diff --git a/src/main/java/com/homework/library/models/DatabaseInitializer.java b/src/main/java/com/homework/library/models/DatabaseInitializer.java
new file mode 100644
index 00000000..4c78fdbc
--- /dev/null
+++ b/src/main/java/com/homework/library/models/DatabaseInitializer.java
@@ -0,0 +1,39 @@
+package com.homework.library.models;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+import com.homework.library.repositories.BookRepository;
+import com.homework.library.repositories.AuthorRepository;
+
+import java.util.List;
+
+@Component
+public class DatabaseInitializer implements CommandLineRunner {
+
+    private final BookRepository bookRepository;
+    private final AuthorRepository authorRepository;
+
+    @Autowired
+    public DatabaseInitializer(BookRepository bookRepository, AuthorRepository authorRepository) {
+        this.bookRepository = bookRepository;
+        this.authorRepository = authorRepository;
+    }
+
+    @Override
+    public void run(String... args) throws Exception {
+        // Create a Book
+        Book javaBook = new Book("978-0134685991", "Effective Java", "Programming", 10);
+        bookRepository.save(javaBook); // Save the book first
+
+        // Create an Author and associate it with the Book
+        Author author = new Author("Joshua Bloch", "joshua@example.com", javaBook);
+        authorRepository.save(author);
+
+        System.out.println("Base de datos inicializada correctamente");
+
+        // Example of fetching books
+        List<Book> javaBooks = bookRepository.findByTitleContainingIgnoreCase("Java");
+        System.out.println("Libros encontrados: " + javaBooks.size());
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/homework/library/models/Issue.java b/src/main/java/com/homework/library/models/Issue.java
index 5240ae08..cd1db8dc 100644
--- a/src/main/java/com/homework/library/models/Issue.java
+++ b/src/main/java/com/homework/library/models/Issue.java
@@ -1,57 +1,55 @@
 package com.homework.library.models;
 
-import java.time.LocalDateTime;
-import java.time.format.DateTimeFormatter;
+import jakarta.persistence.*;
+import java.time.LocalDate;
 
+@Entity
+@Table(name = "issues")  // Specify table name
 public class Issue {
-    private int issueId;
-    private String issueDate;
-    private String returnDate;
-    private Student issueStudent;
-    private Book issueBook;
-    private static int idCounter = 1;
-
-    public Issue(String issueDate, String returnDate, Student issueStudent, Book issueBook) {
-        this.issueId = idCounter++;
-        this.issueDate = issueDate;
-        this.returnDate = returnDate;
-        this.issueStudent = issueStudent;
-        this.issueBook = issueBook;
-    }
 
-    public int getIssueId() {
-        return issueId;
-    }
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long issueId;
 
-    public String getIssueDate() {
-        return issueDate;
-    }
+    @Column(nullable = false)
+    private LocalDate issueDate;
 
-    public void setIssueDate(String issueDate) {
-        this.issueDate = issueDate;
-    }
+    @Column(nullable = false)
+    private LocalDate returnDate;
 
-    public String getReturnDate() {
-        return returnDate;
+    @ManyToOne
+    @JoinColumn(name = "student_usn", referencedColumnName = "usn", nullable = false)
+    private Student student;
+
+    @ManyToOne
+    @JoinColumn(name = "book_isbn", referencedColumnName = "isbn", nullable = false)
+    private Book book;
+
+    public Issue() {
     }
 
-    public void setReturnDate(String returnDate) {
+    public Issue(LocalDate issueDate, LocalDate returnDate, Student student, Book book) {
+        this.issueDate = issueDate;
         this.returnDate = returnDate;
+        this.student = student;
+        this.book = book;
     }
 
-    public Student getIssueStudent() {
-        return issueStudent;
-    }
+    // Getters and Setters
+    public Long getIssueId() { return issueId; }
+    public void setIssueId(Long issueId) { this.issueId = issueId; }
 
-    public void setIssueStudent(Student issueStudent) {
-        this.issueStudent = issueStudent;
-    }
+    public LocalDate getIssueDate() { return issueDate; }
+    public void setIssueDate(LocalDate issueDate) { this.issueDate = issueDate; }
 
-    public Book getIssueBook() {
-        return issueBook;
+    public LocalDate getReturnDate() {
+        return returnDate;
     }
+    public void setReturnDate(LocalDate returnDate) { this.returnDate = returnDate; }
 
-    public void setIssueBook(Book issueBook) {
-        this.issueBook = issueBook;
-    }
+    public Student getStudent() { return student; }
+    public void setStudent(Student student) { this.student = student; }
+
+    public Book getBook() { return book; }
+    public void setBook(Book book) { this.book = book; }
 }
\ No newline at end of file
diff --git a/src/main/java/com/homework/library/models/Student.java b/src/main/java/com/homework/library/models/Student.java
index dce87570..c18951a6 100644
--- a/src/main/java/com/homework/library/models/Student.java
+++ b/src/main/java/com/homework/library/models/Student.java
@@ -1,28 +1,30 @@
 package com.homework.library.models;
 
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Column;
+
+@Entity
 public class Student {
+
+    @Id
     private String usn;
-    private String name;
 
-    public Student(String usn, String name) {
-        this.usn = usn;
-        this.name = name;
-    }
+    @Column(nullable = false)
+    private String name;
 
-    public String getUsn() {
-        return usn;
+    public Student() {
     }
 
-    public void setUsn(String usn) {
+    public Student(String usn, String name) {
         this.usn = usn;
+        this.name = name;
     }
 
-    public String getName() {
-        return name;
-    }
+    // Getters and Setters
+    public String getUsn() { return usn; }
+    public void setUsn(String usn) { this.usn = usn; }
 
-    public void setName(String name) {
-        this.name = name;
-    }
-}
-//commit
\ No newline at end of file
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+}
\ No newline at end of file
diff --git a/src/main/java/com/homework/library/repositories/AuthorRepository.java b/src/main/java/com/homework/library/repositories/AuthorRepository.java
new file mode 100644
index 00000000..1022b311
--- /dev/null
+++ b/src/main/java/com/homework/library/repositories/AuthorRepository.java
@@ -0,0 +1,8 @@
+package com.homework.library.repositories;
+
+import com.homework.library.models.Author;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface AuthorRepository extends JpaRepository<Author, Long> {
+    // You can add custom query methods here if needed
+}
\ No newline at end of file
diff --git a/src/main/java/com/homework/library/repositories/BookRepository.java b/src/main/java/com/homework/library/repositories/BookRepository.java
new file mode 100644
index 00000000..2cbfe6f9
--- /dev/null
+++ b/src/main/java/com/homework/library/repositories/BookRepository.java
@@ -0,0 +1,11 @@
+package com.homework.library.repositories;
+
+import com.homework.library.models.Book;
+import org.springframework.data.jpa.repository.JpaRepository;
+import java.util.List;
+
+public interface BookRepository extends JpaRepository<Book, String> {
+    List<Book> findByTitleContainingIgnoreCase(String title);
+    List<Book> findByCategoryContainingIgnoreCase(String category);
+    // You can add more custom query methods here
+}
\ No newline at end of file
diff --git a/src/main/java/com/homework/library/repositories/StudentRepository.java b/src/main/java/com/homework/library/repositories/StudentRepository.java
new file mode 100644
index 00000000..3d9aac01
--- /dev/null
+++ b/src/main/java/com/homework/library/repositories/StudentRepository.java
@@ -0,0 +1,8 @@
+package com.homework.library.repositories;
+
+import com.homework.library.models.Student;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface StudentRepository extends JpaRepository<Student, String> {
+    // You can add custom query methods here if needed
+}
\ No newline at end of file
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 0a5191d2..6e029f75 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1 +1,8 @@
 spring.application.name=library
+spring.datasource.url=jdbc:mysql://localhost:3306/library
+spring.datasource.username=root
+spring.datasource.password=1234
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+
+//spring.jpa.hibernate.ddl-auto=validate
+spring.jpa.hibernate.ddl-auto=update
\ No newline at end of file
diff --git a/src/main/resources/application.properties.example b/src/main/resources/application.properties.example
index 9b7b8a48..c75fc289 100644
--- a/src/main/resources/application.properties.example
+++ b/src/main/resources/application.properties.example
@@ -1,4 +1,4 @@
-spring.application.name=22_ABR
+spring.application.name=library
 spring.datasource.url=jdbc:mysql://localhost:3306/
 spring.datasource.username=root
 spring.datasource.password=1234

From 91169e8ff4bc08ce20e7f3dd10042f450e774578 Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Mon, 28 Apr 2025 12:33:12 +0200
Subject: [PATCH 16/24] Commit con solucion menu

---
 .../homework/library/LibraryApplication.java  | 29 ++++---------------
 .../com/homework/library/models/Author.java   |  4 +--
 2 files changed, 7 insertions(+), 26 deletions(-)

diff --git a/src/main/java/com/homework/library/LibraryApplication.java b/src/main/java/com/homework/library/LibraryApplication.java
index affc7ba4..38c037df 100644
--- a/src/main/java/com/homework/library/LibraryApplication.java
+++ b/src/main/java/com/homework/library/LibraryApplication.java
@@ -53,8 +53,8 @@ public void displayMenu() {
 			System.out.println("5. Listar todos los libros con autor");
 			System.out.println("6. Prestar libro a estudiante");
 			System.out.println("7. Listar libros por USN");
-			System.out.println("8. Borrar un libro");
-			System.out.println("9. Salir");
+
+			System.out.println("8. Salir");
 			System.out.print("Ingrese su opción: ");
 
 			int choice = scanner.nextInt();
@@ -82,10 +82,8 @@ public void displayMenu() {
 				case 7:
 					listBooksByUsn();
 					break;
+
 				case 8:
-					deleteBook();
-					break;
-				case 9:
 					exit = true;
 					System.out.println("Saliendo...");
 					break;
@@ -166,7 +164,7 @@ private void listAllBooksWithAuthors() {
 			System.out.println("ISBN\tTítulo\tCategoría\tCantidad\tNombre del Autor\tEmail del Autor");
 			for (Book book : books) {
 				Optional<Author> author = authorRepository.findAll().stream()
-						.filter(a -> a.getAuthorBook() != null && a.getAuthorBook().equals(book))
+						.filter(a -> a.getBook() != null && a.getBook().getIsbn().equals(book.getIsbn()))
 						.findFirst();
 				if (author.isPresent()) {
 					System.out.println(book.getIsbn() + "\t" + book.getTitle() + "\t" + book.getCategory() + "\t" +
@@ -179,6 +177,7 @@ private void listAllBooksWithAuthors() {
 		}
 	}
 
+
 	private void issueBookToStudent() {
 		System.out.println("\n--- Prestar Libro a Estudiante ---");
 		System.out.print("Ingrese USN del Estudiante: ");
@@ -218,25 +217,7 @@ private void listBooksByUsn() {
 		}
 	}
 
-    @Transactional
-	private void deleteBook() {
-		System.out.println("\n--- Borrar un Libro ---");
-		System.out.print("Ingrese el ISBN del libro a borrar: ");
-		String isbn = scanner.nextLine();
 
-		try {
-			// Primero, buscamos el libro para obtener su ID (si es necesario)
-			Optional<Book> bookToDelete = bookRepository.findById(String.valueOf(Long.valueOf(isbn)));
-			if (bookToDelete.isPresent()) {
-				bookRepository.delete(bookToDelete.get()); // Borramos el libro
-				System.out.println("Libro borrado exitosamente!");
-			} else {
-				System.out.println("No se encontró ningún libro con ese ISBN.");
-			}
-		} catch (Exception e) {
-			System.out.println("Error al borrar el libro: " + e.getMessage());
-		}
-	}
 
 	private void displayBooks(List<Book> books) {
 		if (books.isEmpty()) {
diff --git a/src/main/java/com/homework/library/models/Author.java b/src/main/java/com/homework/library/models/Author.java
index 89ec4d0b..20acfb88 100644
--- a/src/main/java/com/homework/library/models/Author.java
+++ b/src/main/java/com/homework/library/models/Author.java
@@ -14,8 +14,8 @@ public class Author {
     @JoinColumn(name = "book_isbn", referencedColumnName = "isbn") // Corrected column name
     private Book book;  // Changed name to 'book' for clarity
 
-    public Author(String joshuaBloch, String mail) {
-    }
+    public Author(){}
+
 
     public Author(String name, String email, Book book) {
         this.name = name;

From b550b86f824e19d389db96aae19a842fd89122ed Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 29 Apr 2025 10:01:56 +0200
Subject: [PATCH 17/24] Create Readme1.md

---
 Readme1.md | 151 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 Readme1.md

diff --git a/Readme1.md b/Readme1.md
new file mode 100644
index 00000000..0242fbf7
--- /dev/null
+++ b/Readme1.md
@@ -0,0 +1,151 @@
+<!DOCTYPE html>
+<html lang="es">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>README - Sistema de Gestión de Biblioteca</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            line-height: 1.6;
+            margin: 20px;
+            background-color: #f4f4f4;
+            color: #333;
+        }
+        h1 {
+            color: #444;
+            text-align: center;
+        }
+        h2 {
+            color: #555;
+            border-bottom: 1px solid #ccc;
+            padding-bottom: 5px;
+        }
+        ul {
+            list-style-type: square;
+            margin-left: 20px;
+        }
+        code {
+            background-color: #eee;
+            padding: 2px 5px;
+            border-radius: 5px;
+        }
+        .author-list {
+            display: flex;
+            justify-content: center;
+            gap: 20px;
+            margin-top: 20px;
+        }
+        .author {
+            text-align: center;
+        }
+        .author img {
+            border-radius: 50%;
+            width: 100px;
+            height: 100px;
+            object-fit: cover; /* Ensure image fills the circle */
+            border: 2px solid #aaa;
+        }
+    </style>
+</head>
+<body>
+
+    <h1>Sistema de Gestión de Biblioteca</h1>
+
+    <div class="author-list">
+        <div class="author">
+            <img src="jose_martin.jpg" alt="José Martín">
+            <p><strong>José Martín</strong></p>
+        </div>
+        <div class="author">
+            <img src="jose_manuel_siguero.jpg" alt="José Manuel Siguero">
+            <p><strong>José Manuel Siguero</strong></p>
+        </div>
+        <div class="author">
+            <img src="rafael_gamero.jpg" alt="Rafael Gamero">
+            <p><strong>Rafael Gamero</strong></p>
+        </div>
+    </div>
+
+    <h2>Descripción del Proyecto</h2>
+    <p>
+        Este proyecto es un sistema de gestión de biblioteca desarrollado en Java con Spring Boot.
+        Permite la administración de libros, autores, estudiantes y préstamos.
+        El sistema ofrece una interfaz de línea de comandos para interactuar con las funcionalidades.
+    </p>
+
+    <h2>Funcionalidades</h2>
+    <p>
+        El sistema de gestión de biblioteca incluye las siguientes funcionalidades:
+    </p>
+    <ul>
+        <li>Añadir un libro</li>
+        <li>Buscar libro por título</li>
+        <li>Buscar libro por categoría</li>
+        <li>Buscar libro por autor</li>
+        <li>Listar todos los libros con autor</li>
+        <li>Prestar libro a estudiante</li>
+        <li>Listar libros por USN (Número de Identificación de Estudiante)</li>
+        <li>Borrar un libro</li>
+        <li>Salir del sistema</li>
+    </ul>
+
+    <h2>Tecnologías Utilizadas</h2>
+    <ul>
+        <li>Java</li>
+        <li>Spring Boot</li>
+        <li>JPA (Java Persistence API)</li>
+        <li>Hibernate</li>
+        <li>Base de Datos Relacional (e.g., H2, MySQL, PostgreSQL)</li>
+    </ul>
+
+    <h2>Estructura del Proyecto</h2>
+    <p>
+        La estructura principal del proyecto se organiza en los siguientes paquetes:
+    </p>
+    <ul>
+        <li>
+            <code>com.homework.library</code>: Paquete principal que contiene la clase <code>LibraryApplication</code>,
+            el punto de entrada de la aplicación.
+        </li>
+        <li>
+            <code>com.homework.library.models</code>: Contiene las clases que representan las entidades del dominio
+            (<code>Book</code>, <code>Author</code>, <code>Student</code>, <code>Issue</code>).
+        </li>
+        <li>
+            <code>com.homework.library.repositories</code>: Contiene las interfaces que extienden <code>JpaRepository</code>
+            para interactuar con la base de datos.
+        </li>
+    </ul>
+
+    <h2>Cómo Ejecutar el Proyecto</h2>
+    <ol>
+        <li>Asegúrate de tener instalado Java y un IDE (como IntelliJ IDEA o Eclipse).</li>
+        <li>Clona el repositorio del proyecto.</li>
+        <li>Importa el proyecto en tu IDE.</li>
+        <li>Configura la conexión a la base de datos (puedes modificar <code>application.properties</code>).</li>
+        <li>Ejecuta la clase <code>LibraryApplication</code>.</li>
+        <li>Interactúa con el sistema a través de la consola, siguiendo el menú de opciones.</li>
+    </ol>
+
+    <h2>Consideraciones Adicionales</h2>
+    <ul>
+        <li>
+            Se han implementado mejoras en la gestión de autores y libros, incluyendo la corrección de errores en la
+            relación entre entidades y la optimización de consultas a la base de datos.
+        </li>
+        <li>
+            Se recomienda utilizar la cascada de eliminación para mantener la integridad de los datos al borrar libros.
+        </li>
+        <li>
+            El proyecto utiliza Spring Boot para facilitar el desarrollo y la configuración de la aplicación.
+        </li>
+    </ul>
+
+    <h2>Contacto</h2>
+    <p>
+        Para cualquier consulta o sugerencia, no dudes en contactar con los autores.
+    </p>
+
+</body>
+</html>

From 76750f97edb484e88be69b83f3369facb10786eb Mon Sep 17 00:00:00 2001
From: Saiguer10 <eljosemsp@gmail.com>
Date: Tue, 29 Apr 2025 10:33:51 +0200
Subject: [PATCH 18/24] Commit funcionalidad ok

---
 .../homework/library/LibraryApplication.java  | 82 +++++++++----------
 .../library/repositories/IssueRepository.java | 10 +++
 src/main/resources/application.properties     |  2 +-
 3 files changed, 49 insertions(+), 45 deletions(-)
 create mode 100644 src/main/java/com/homework/library/repositories/IssueRepository.java

diff --git a/src/main/java/com/homework/library/LibraryApplication.java b/src/main/java/com/homework/library/LibraryApplication.java
index 38c037df..2f63bbce 100644
--- a/src/main/java/com/homework/library/LibraryApplication.java
+++ b/src/main/java/com/homework/library/LibraryApplication.java
@@ -3,45 +3,43 @@
 import com.homework.library.models.Book;
 import com.homework.library.models.Author;
 import com.homework.library.models.Student;
+import com.homework.library.models.Issue; // Importamos la entidad Issue
 import com.homework.library.repositories.BookRepository;
 import com.homework.library.repositories.AuthorRepository;
 import com.homework.library.repositories.StudentRepository;
+import com.homework.library.repositories.IssueRepository; // Importamos el repositorio IssueRepository
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.ComponentScan;
-import org.springframework.transaction.annotation.Transactional; // Importante para la transacción
-
+import org.springframework.transaction.annotation.Transactional;
+import java.time.LocalDate; // Importamos LocalDate para las fechas
 import java.util.List;
 import java.util.Optional;
 import java.util.Scanner;
-
 @SpringBootApplication
-@ComponentScan(basePackages = "com.homework.library") // Asegura que Spring escanee tus componentes
+@ComponentScan(basePackages = "com.homework.library")
 public class LibraryApplication implements CommandLineRunner {
-
 	private final BookRepository bookRepository;
 	private final AuthorRepository authorRepository;
 	private final StudentRepository studentRepository;
+	private final IssueRepository issueRepository; // Agregamos el IssueRepository
 	private final Scanner scanner = new Scanner(System.in);
-
 	@Autowired
-	public LibraryApplication(BookRepository bookRepository, AuthorRepository authorRepository, StudentRepository studentRepository) {
+	public LibraryApplication(BookRepository bookRepository, AuthorRepository authorRepository, StudentRepository studentRepository, IssueRepository issueRepository) {
 		this.bookRepository = bookRepository;
 		this.authorRepository = authorRepository;
 		this.studentRepository = studentRepository;
+		this.issueRepository = issueRepository; // Inicializamos el IssueRepository
 	}
-
 	public static void main(String[] args) {
 		SpringApplication.run(LibraryApplication.class, args);
 	}
-
 	@Override
 	public void run(String... args) {
 		displayMenu();
 	}
-
 	public void displayMenu() {
 		boolean exit = false;
 		while (!exit) {
@@ -53,13 +51,10 @@ public void displayMenu() {
 			System.out.println("5. Listar todos los libros con autor");
 			System.out.println("6. Prestar libro a estudiante");
 			System.out.println("7. Listar libros por USN");
-
 			System.out.println("8. Salir");
 			System.out.print("Ingrese su opción: ");
-
 			int choice = scanner.nextInt();
-			scanner.nextLine(); // Consume la nueva línea
-
+			scanner.nextLine();
 			switch (choice) {
 				case 1:
 					addBook();
@@ -92,7 +87,6 @@ public void displayMenu() {
 			}
 		}
 	}
-
 	private void addBook() {
 		System.out.println("\n--- Añadir un Libro ---");
 		System.out.print("Ingrese ISBN: ");
@@ -103,23 +97,17 @@ private void addBook() {
 		String category = scanner.nextLine();
 		System.out.print("Ingrese Cantidad: ");
 		int quantity = scanner.nextInt();
-		scanner.nextLine(); // Consume la nueva línea
-
+		scanner.nextLine();
 		Book book = new Book(isbn, title, category, quantity);
 		bookRepository.save(book);
-
 		System.out.print("Ingrese Nombre del Autor: ");
 		String authorName = scanner.nextLine();
 		System.out.print("Ingrese Email del Autor: ");
 		String authorEmail = scanner.nextLine();
-
 		Author author = new Author(authorName, authorEmail, book);
 		authorRepository.save(author);
-
 		System.out.println("Libro añadido exitosamente!");
-
 	}
-
 	private void searchBookByTitle() {
 		System.out.println("\n--- Buscar Libro por Título ---");
 		System.out.print("Ingrese título a buscar: ");
@@ -129,7 +117,6 @@ private void searchBookByTitle() {
 				.toList();
 		displayBooks(books);
 	}
-
 	private void searchBookByCategory() {
 		System.out.println("\n--- Buscar Libro por Categoría ---");
 		System.out.print("Ingrese categoría a buscar: ");
@@ -139,7 +126,6 @@ private void searchBookByCategory() {
 				.toList();
 		displayBooks(books);
 	}
-
 	private void searchBookByAuthor() {
 		System.out.println("\n--- Buscar Libro por Autor ---");
 		System.out.print("Ingrese nombre del autor a buscar: ");
@@ -154,7 +140,6 @@ private void searchBookByAuthor() {
 				.toList();
 		displayBooks(books);
 	}
-
 	private void listAllBooksWithAuthors() {
 		System.out.println("\n--- Listar Todos los Libros con Autores ---");
 		List<Book> books = bookRepository.findAll();
@@ -164,7 +149,7 @@ private void listAllBooksWithAuthors() {
 			System.out.println("ISBN\tTítulo\tCategoría\tCantidad\tNombre del Autor\tEmail del Autor");
 			for (Book book : books) {
 				Optional<Author> author = authorRepository.findAll().stream()
-						.filter(a -> a.getBook() != null && a.getBook().getIsbn().equals(book.getIsbn()))
+						.filter(a -> a.getAuthorBook() != null && a.getAuthorBook().equals(book))
 						.findFirst();
 				if (author.isPresent()) {
 					System.out.println(book.getIsbn() + "\t" + book.getTitle() + "\t" + book.getCategory() + "\t" +
@@ -176,8 +161,6 @@ private void listAllBooksWithAuthors() {
 			}
 		}
 	}
-
-
 	private void issueBookToStudent() {
 		System.out.println("\n--- Prestar Libro a Estudiante ---");
 		System.out.print("Ingrese USN del Estudiante: ");
@@ -186,39 +169,50 @@ private void issueBookToStudent() {
 		String studentName = scanner.nextLine();
 		System.out.print("Ingrese ISBN del Libro a Prestar: ");
 		String isbn = scanner.nextLine();
-		System.out.print("Ingrese Fecha de Préstamo: ");
-		String issueDate = scanner.nextLine();
-		System.out.print("Ingrese Fecha de Devolución: ");
-		String returnDate = scanner.nextLine();
-
-		Optional<Book> book = bookRepository.findById(String.valueOf(Long.valueOf(isbn)));
-		Optional<Student> student = studentRepository.findById(String.valueOf(Long.valueOf(usn)));
-
+		System.out.print("Ingrese Fecha de Préstamo (YYYY-MM-DD): ");
+		LocalDate issueDate = LocalDate.parse(scanner.nextLine());
+		System.out.print("Ingrese Fecha de Devolución (YYYY-MM-DD): ");
+		LocalDate returnDate = LocalDate.parse(scanner.nextLine());
+		Optional<Book> book = bookRepository.findById(isbn);
+		Optional<Student> student = studentRepository.findById(usn);
 		if (book.isPresent() && book.get().getQuantity() > 0) {
-			Student student1 = new Student(usn, studentName);
-			studentRepository.save(student1);
+			// Aseguramos que el estudiante exista o lo creamos si no existe
+			if (!student.isPresent()) {
+				Student newStudent = new Student(usn, studentName);
+				studentRepository.save(newStudent);
+				student = Optional.of(newStudent); // Actualizamos la referencia student
+			}
+			Issue issue = new Issue(issueDate, returnDate, student.get(), book.get());
+			issueRepository.save(issue);
 			book.get().setQuantity(book.get().getQuantity() - 1);
 			bookRepository.save(book.get());
 			System.out.println("Libro prestado exitosamente!");
 		} else {
-			System.out.println("El libro no está disponible o el estudiante no existe.");
+			System.out.println("El libro no está disponible.");
 		}
 	}
-
 	private void listBooksByUsn() {
 		System.out.println("\n--- Listar Libros por USN ---");
 		System.out.print("Ingrese USN del Estudiante: ");
 		String usn = scanner.nextLine();
-		Optional<Student> student = studentRepository.findById(String.valueOf(Long.valueOf(usn)));
+		Optional<Student> student = studentRepository.findById(usn);
 		if (student.isPresent()) {
-			System.out.println("Funcionalidad no implementada aún");
+			System.out.println("USN: " + student.get().getUsn());
+			System.out.println("Nombre: " + student.get().getName());
+			System.out.println("Libros prestados:");
+			List<Issue> issues = issueRepository.findByStudent_Usn(usn); // Buscamos los prestamos por USN
+			if (issues.isEmpty()) {
+				System.out.println("No hay libros prestados a este estudiante.");
+			} else {
+				for (Issue issue : issues) {
+					System.out.println("- " + issue.getBook().getTitle() + " (Devolución: " + issue.getReturnDate() + ")");
+				}
+			}
 		} else {
 			System.out.println("Estudiante no encontrado");
 		}
 	}
 
-
-
 	private void displayBooks(List<Book> books) {
 		if (books.isEmpty()) {
 			System.out.println("No se encontraron libros.");
diff --git a/src/main/java/com/homework/library/repositories/IssueRepository.java b/src/main/java/com/homework/library/repositories/IssueRepository.java
new file mode 100644
index 00000000..d6eda2c7
--- /dev/null
+++ b/src/main/java/com/homework/library/repositories/IssueRepository.java
@@ -0,0 +1,10 @@
+package com.homework.library.repositories;
+
+
+import com.homework.library.models.Issue;
+import org.springframework.data.jpa.repository.JpaRepository;
+import java.util.List;
+
+public interface IssueRepository extends JpaRepository<Issue, Long> {
+    List<Issue> findByStudent_Usn(String usn);
+}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 6e029f75..82d491d8 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1,7 +1,7 @@
 spring.application.name=library
 spring.datasource.url=jdbc:mysql://localhost:3306/library
 spring.datasource.username=root
-spring.datasource.password=1234
+spring.datasource.password=Paula2020$
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 
 //spring.jpa.hibernate.ddl-auto=validate

From 665fe6e80b0c4308fdbffe8899fefc5d0557a6b1 Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 29 Apr 2025 10:41:05 +0200
Subject: [PATCH 19/24] Update Readme1.md

---
 Readme1.md | 213 ++++++++++++++++-------------------------------------
 1 file changed, 62 insertions(+), 151 deletions(-)

diff --git a/Readme1.md b/Readme1.md
index 0242fbf7..4c77926b 100644
--- a/Readme1.md
+++ b/Readme1.md
@@ -1,151 +1,62 @@
-<!DOCTYPE html>
-<html lang="es">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>README - Sistema de Gestión de Biblioteca</title>
-    <style>
-        body {
-            font-family: Arial, sans-serif;
-            line-height: 1.6;
-            margin: 20px;
-            background-color: #f4f4f4;
-            color: #333;
-        }
-        h1 {
-            color: #444;
-            text-align: center;
-        }
-        h2 {
-            color: #555;
-            border-bottom: 1px solid #ccc;
-            padding-bottom: 5px;
-        }
-        ul {
-            list-style-type: square;
-            margin-left: 20px;
-        }
-        code {
-            background-color: #eee;
-            padding: 2px 5px;
-            border-radius: 5px;
-        }
-        .author-list {
-            display: flex;
-            justify-content: center;
-            gap: 20px;
-            margin-top: 20px;
-        }
-        .author {
-            text-align: center;
-        }
-        .author img {
-            border-radius: 50%;
-            width: 100px;
-            height: 100px;
-            object-fit: cover; /* Ensure image fills the circle */
-            border: 2px solid #aaa;
-        }
-    </style>
-</head>
-<body>
-
-    <h1>Sistema de Gestión de Biblioteca</h1>
-
-    <div class="author-list">
-        <div class="author">
-            <img src="jose_martin.jpg" alt="José Martín">
-            <p><strong>José Martín</strong></p>
-        </div>
-        <div class="author">
-            <img src="jose_manuel_siguero.jpg" alt="José Manuel Siguero">
-            <p><strong>José Manuel Siguero</strong></p>
-        </div>
-        <div class="author">
-            <img src="rafael_gamero.jpg" alt="Rafael Gamero">
-            <p><strong>Rafael Gamero</strong></p>
-        </div>
-    </div>
-
-    <h2>Descripción del Proyecto</h2>
-    <p>
-        Este proyecto es un sistema de gestión de biblioteca desarrollado en Java con Spring Boot.
-        Permite la administración de libros, autores, estudiantes y préstamos.
-        El sistema ofrece una interfaz de línea de comandos para interactuar con las funcionalidades.
-    </p>
-
-    <h2>Funcionalidades</h2>
-    <p>
-        El sistema de gestión de biblioteca incluye las siguientes funcionalidades:
-    </p>
-    <ul>
-        <li>Añadir un libro</li>
-        <li>Buscar libro por título</li>
-        <li>Buscar libro por categoría</li>
-        <li>Buscar libro por autor</li>
-        <li>Listar todos los libros con autor</li>
-        <li>Prestar libro a estudiante</li>
-        <li>Listar libros por USN (Número de Identificación de Estudiante)</li>
-        <li>Borrar un libro</li>
-        <li>Salir del sistema</li>
-    </ul>
-
-    <h2>Tecnologías Utilizadas</h2>
-    <ul>
-        <li>Java</li>
-        <li>Spring Boot</li>
-        <li>JPA (Java Persistence API)</li>
-        <li>Hibernate</li>
-        <li>Base de Datos Relacional (e.g., H2, MySQL, PostgreSQL)</li>
-    </ul>
-
-    <h2>Estructura del Proyecto</h2>
-    <p>
-        La estructura principal del proyecto se organiza en los siguientes paquetes:
-    </p>
-    <ul>
-        <li>
-            <code>com.homework.library</code>: Paquete principal que contiene la clase <code>LibraryApplication</code>,
-            el punto de entrada de la aplicación.
-        </li>
-        <li>
-            <code>com.homework.library.models</code>: Contiene las clases que representan las entidades del dominio
-            (<code>Book</code>, <code>Author</code>, <code>Student</code>, <code>Issue</code>).
-        </li>
-        <li>
-            <code>com.homework.library.repositories</code>: Contiene las interfaces que extienden <code>JpaRepository</code>
-            para interactuar con la base de datos.
-        </li>
-    </ul>
-
-    <h2>Cómo Ejecutar el Proyecto</h2>
-    <ol>
-        <li>Asegúrate de tener instalado Java y un IDE (como IntelliJ IDEA o Eclipse).</li>
-        <li>Clona el repositorio del proyecto.</li>
-        <li>Importa el proyecto en tu IDE.</li>
-        <li>Configura la conexión a la base de datos (puedes modificar <code>application.properties</code>).</li>
-        <li>Ejecuta la clase <code>LibraryApplication</code>.</li>
-        <li>Interactúa con el sistema a través de la consola, siguiendo el menú de opciones.</li>
-    </ol>
-
-    <h2>Consideraciones Adicionales</h2>
-    <ul>
-        <li>
-            Se han implementado mejoras en la gestión de autores y libros, incluyendo la corrección de errores en la
-            relación entre entidades y la optimización de consultas a la base de datos.
-        </li>
-        <li>
-            Se recomienda utilizar la cascada de eliminación para mantener la integridad de los datos al borrar libros.
-        </li>
-        <li>
-            El proyecto utiliza Spring Boot para facilitar el desarrollo y la configuración de la aplicación.
-        </li>
-    </ul>
-
-    <h2>Contacto</h2>
-    <p>
-        Para cualquier consulta o sugerencia, no dudes en contactar con los autores.
-    </p>
-
-</body>
-</html>
+# Sistema de Gestión de Biblioteca
+
+Desarrollado por:
+
+* José Martín
+* José Manuel Siguero
+* Rafael Gamero
+
+## Descripción del Proyecto
+
+Este proyecto es un sistema de gestión de biblioteca desarrollado en Java con Spring Boot.
+Permite la administración de libros, autores, estudiantes y préstamos.
+El sistema ofrece una interfaz de línea de comandos para interactuar con las funcionalidades.
+
+## Funcionalidades
+
+El sistema de gestión de biblioteca incluye las siguientes funcionalidades:
+
+* Añadir un libro
+* Buscar libro por título
+* Buscar libro por categoría
+* Buscar libro por autor
+* Listar todos los libros con autor
+* Prestar libro a estudiante
+* Listar libros por USN (Número de Identificación de Estudiante)
+* Borrar un libro
+* Salir del sistema
+
+## Tecnologías Utilizadas
+
+* Java
+* Spring Boot
+* JPA (Java Persistence API)
+* Hibernate
+* Base de Datos Relacional (e.g., H2, MySQL, PostgreSQL)
+
+## Estructura del Proyecto
+
+La estructura principal del proyecto se organiza en los siguientes paquetes:
+
+* `com.homework.library`: Paquete principal que contiene la clase `LibraryApplication`, el punto de entrada de la aplicación.
+* `com.homework.library.models`: Contiene las clases que representan las entidades del dominio (`Book`, `Author`, `Student`, `Issue`).
+* `com.homework.library.repositories`: Contiene las interfaces que extienden `JpaRepository` para interactuar con la base de datos.
+
+## Cómo Ejecutar el Proyecto
+
+1.  Asegúrate de tener instalado Java y un IDE (como IntelliJ IDEA o Eclipse).
+2.  Clona el repositorio del proyecto.
+3.  Importa el proyecto en tu IDE.
+4.  Configura la conexión a la base de datos (puedes modificar `application.properties`).
+5.  Ejecuta la clase `LibraryApplication`.
+6.  Interactúa con el sistema a través de la consola, siguiendo el menú de opciones.
+
+## Consideraciones Adicionales
+
+* Se han implementado mejoras en la gestión de autores y libros, incluyendo la corrección de errores en la relación entre entidades y la optimización de consultas a la base de datos.
+* Se recomienda utilizar la cascada de eliminación para mantener la integridad de los datos al borrar libros.
+* El proyecto utiliza Spring Boot para facilitar el desarrollo y la configuración de la aplicación.
+
+## Contacto
+
+Para cualquier consulta o sugerencia, no dudes en contactar con los autores.

From a98a5ef1eab249430810c3233d11b8138cc437be Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 29 Apr 2025 10:41:35 +0200
Subject: [PATCH 20/24] Update Readme1.md

---
 Readme1.md | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Readme1.md b/Readme1.md
index 4c77926b..148b55db 100644
--- a/Readme1.md
+++ b/Readme1.md
@@ -23,7 +23,6 @@ El sistema de gestión de biblioteca incluye las siguientes funcionalidades:
 * Listar todos los libros con autor
 * Prestar libro a estudiante
 * Listar libros por USN (Número de Identificación de Estudiante)
-* Borrar un libro
 * Salir del sistema
 
 ## Tecnologías Utilizadas

From 6f38cf2ec8b7e45ba2c03a6d1665f3d82222f188 Mon Sep 17 00:00:00 2001
From: Rafa-Gamero <rafagameroarrabal@gmail.com>
Date: Tue, 29 Apr 2025 11:04:41 +0200
Subject: [PATCH 21/24] Commit con test

---
 .../homework/library/LibraryApplication.java  | 82 ++++++++++---------
 .../library/repositories/IssueRepository.java |  3 +-
 .../library/LibraryApplicationTests.java      | 60 ++++++++++++--
 .../repositories/BookRepositoryTests.java     | 40 +++++++++
 .../library/repositories/ModelTests.java      | 38 +++++++++
 5 files changed, 176 insertions(+), 47 deletions(-)
 create mode 100644 src/test/java/com/homework/library/repositories/BookRepositoryTests.java
 create mode 100644 src/test/java/com/homework/library/repositories/ModelTests.java

diff --git a/src/main/java/com/homework/library/LibraryApplication.java b/src/main/java/com/homework/library/LibraryApplication.java
index 2f63bbce..38c037df 100644
--- a/src/main/java/com/homework/library/LibraryApplication.java
+++ b/src/main/java/com/homework/library/LibraryApplication.java
@@ -3,43 +3,45 @@
 import com.homework.library.models.Book;
 import com.homework.library.models.Author;
 import com.homework.library.models.Student;
-import com.homework.library.models.Issue; // Importamos la entidad Issue
 import com.homework.library.repositories.BookRepository;
 import com.homework.library.repositories.AuthorRepository;
 import com.homework.library.repositories.StudentRepository;
-import com.homework.library.repositories.IssueRepository; // Importamos el repositorio IssueRepository
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.ComponentScan;
-import org.springframework.transaction.annotation.Transactional;
-import java.time.LocalDate; // Importamos LocalDate para las fechas
+import org.springframework.transaction.annotation.Transactional; // Importante para la transacción
+
 import java.util.List;
 import java.util.Optional;
 import java.util.Scanner;
+
 @SpringBootApplication
-@ComponentScan(basePackages = "com.homework.library")
+@ComponentScan(basePackages = "com.homework.library") // Asegura que Spring escanee tus componentes
 public class LibraryApplication implements CommandLineRunner {
+
 	private final BookRepository bookRepository;
 	private final AuthorRepository authorRepository;
 	private final StudentRepository studentRepository;
-	private final IssueRepository issueRepository; // Agregamos el IssueRepository
 	private final Scanner scanner = new Scanner(System.in);
+
 	@Autowired
-	public LibraryApplication(BookRepository bookRepository, AuthorRepository authorRepository, StudentRepository studentRepository, IssueRepository issueRepository) {
+	public LibraryApplication(BookRepository bookRepository, AuthorRepository authorRepository, StudentRepository studentRepository) {
 		this.bookRepository = bookRepository;
 		this.authorRepository = authorRepository;
 		this.studentRepository = studentRepository;
-		this.issueRepository = issueRepository; // Inicializamos el IssueRepository
 	}
+
 	public static void main(String[] args) {
 		SpringApplication.run(LibraryApplication.class, args);
 	}
+
 	@Override
 	public void run(String... args) {
 		displayMenu();
 	}
+
 	public void displayMenu() {
 		boolean exit = false;
 		while (!exit) {
@@ -51,10 +53,13 @@ public void displayMenu() {
 			System.out.println("5. Listar todos los libros con autor");
 			System.out.println("6. Prestar libro a estudiante");
 			System.out.println("7. Listar libros por USN");
+
 			System.out.println("8. Salir");
 			System.out.print("Ingrese su opción: ");
+
 			int choice = scanner.nextInt();
-			scanner.nextLine();
+			scanner.nextLine(); // Consume la nueva línea
+
 			switch (choice) {
 				case 1:
 					addBook();
@@ -87,6 +92,7 @@ public void displayMenu() {
 			}
 		}
 	}
+
 	private void addBook() {
 		System.out.println("\n--- Añadir un Libro ---");
 		System.out.print("Ingrese ISBN: ");
@@ -97,17 +103,23 @@ private void addBook() {
 		String category = scanner.nextLine();
 		System.out.print("Ingrese Cantidad: ");
 		int quantity = scanner.nextInt();
-		scanner.nextLine();
+		scanner.nextLine(); // Consume la nueva línea
+
 		Book book = new Book(isbn, title, category, quantity);
 		bookRepository.save(book);
+
 		System.out.print("Ingrese Nombre del Autor: ");
 		String authorName = scanner.nextLine();
 		System.out.print("Ingrese Email del Autor: ");
 		String authorEmail = scanner.nextLine();
+
 		Author author = new Author(authorName, authorEmail, book);
 		authorRepository.save(author);
+
 		System.out.println("Libro añadido exitosamente!");
+
 	}
+
 	private void searchBookByTitle() {
 		System.out.println("\n--- Buscar Libro por Título ---");
 		System.out.print("Ingrese título a buscar: ");
@@ -117,6 +129,7 @@ private void searchBookByTitle() {
 				.toList();
 		displayBooks(books);
 	}
+
 	private void searchBookByCategory() {
 		System.out.println("\n--- Buscar Libro por Categoría ---");
 		System.out.print("Ingrese categoría a buscar: ");
@@ -126,6 +139,7 @@ private void searchBookByCategory() {
 				.toList();
 		displayBooks(books);
 	}
+
 	private void searchBookByAuthor() {
 		System.out.println("\n--- Buscar Libro por Autor ---");
 		System.out.print("Ingrese nombre del autor a buscar: ");
@@ -140,6 +154,7 @@ private void searchBookByAuthor() {
 				.toList();
 		displayBooks(books);
 	}
+
 	private void listAllBooksWithAuthors() {
 		System.out.println("\n--- Listar Todos los Libros con Autores ---");
 		List<Book> books = bookRepository.findAll();
@@ -149,7 +164,7 @@ private void listAllBooksWithAuthors() {
 			System.out.println("ISBN\tTítulo\tCategoría\tCantidad\tNombre del Autor\tEmail del Autor");
 			for (Book book : books) {
 				Optional<Author> author = authorRepository.findAll().stream()
-						.filter(a -> a.getAuthorBook() != null && a.getAuthorBook().equals(book))
+						.filter(a -> a.getBook() != null && a.getBook().getIsbn().equals(book.getIsbn()))
 						.findFirst();
 				if (author.isPresent()) {
 					System.out.println(book.getIsbn() + "\t" + book.getTitle() + "\t" + book.getCategory() + "\t" +
@@ -161,6 +176,8 @@ private void listAllBooksWithAuthors() {
 			}
 		}
 	}
+
+
 	private void issueBookToStudent() {
 		System.out.println("\n--- Prestar Libro a Estudiante ---");
 		System.out.print("Ingrese USN del Estudiante: ");
@@ -169,50 +186,39 @@ private void issueBookToStudent() {
 		String studentName = scanner.nextLine();
 		System.out.print("Ingrese ISBN del Libro a Prestar: ");
 		String isbn = scanner.nextLine();
-		System.out.print("Ingrese Fecha de Préstamo (YYYY-MM-DD): ");
-		LocalDate issueDate = LocalDate.parse(scanner.nextLine());
-		System.out.print("Ingrese Fecha de Devolución (YYYY-MM-DD): ");
-		LocalDate returnDate = LocalDate.parse(scanner.nextLine());
-		Optional<Book> book = bookRepository.findById(isbn);
-		Optional<Student> student = studentRepository.findById(usn);
+		System.out.print("Ingrese Fecha de Préstamo: ");
+		String issueDate = scanner.nextLine();
+		System.out.print("Ingrese Fecha de Devolución: ");
+		String returnDate = scanner.nextLine();
+
+		Optional<Book> book = bookRepository.findById(String.valueOf(Long.valueOf(isbn)));
+		Optional<Student> student = studentRepository.findById(String.valueOf(Long.valueOf(usn)));
+
 		if (book.isPresent() && book.get().getQuantity() > 0) {
-			// Aseguramos que el estudiante exista o lo creamos si no existe
-			if (!student.isPresent()) {
-				Student newStudent = new Student(usn, studentName);
-				studentRepository.save(newStudent);
-				student = Optional.of(newStudent); // Actualizamos la referencia student
-			}
-			Issue issue = new Issue(issueDate, returnDate, student.get(), book.get());
-			issueRepository.save(issue);
+			Student student1 = new Student(usn, studentName);
+			studentRepository.save(student1);
 			book.get().setQuantity(book.get().getQuantity() - 1);
 			bookRepository.save(book.get());
 			System.out.println("Libro prestado exitosamente!");
 		} else {
-			System.out.println("El libro no está disponible.");
+			System.out.println("El libro no está disponible o el estudiante no existe.");
 		}
 	}
+
 	private void listBooksByUsn() {
 		System.out.println("\n--- Listar Libros por USN ---");
 		System.out.print("Ingrese USN del Estudiante: ");
 		String usn = scanner.nextLine();
-		Optional<Student> student = studentRepository.findById(usn);
+		Optional<Student> student = studentRepository.findById(String.valueOf(Long.valueOf(usn)));
 		if (student.isPresent()) {
-			System.out.println("USN: " + student.get().getUsn());
-			System.out.println("Nombre: " + student.get().getName());
-			System.out.println("Libros prestados:");
-			List<Issue> issues = issueRepository.findByStudent_Usn(usn); // Buscamos los prestamos por USN
-			if (issues.isEmpty()) {
-				System.out.println("No hay libros prestados a este estudiante.");
-			} else {
-				for (Issue issue : issues) {
-					System.out.println("- " + issue.getBook().getTitle() + " (Devolución: " + issue.getReturnDate() + ")");
-				}
-			}
+			System.out.println("Funcionalidad no implementada aún");
 		} else {
 			System.out.println("Estudiante no encontrado");
 		}
 	}
 
+
+
 	private void displayBooks(List<Book> books) {
 		if (books.isEmpty()) {
 			System.out.println("No se encontraron libros.");
diff --git a/src/main/java/com/homework/library/repositories/IssueRepository.java b/src/main/java/com/homework/library/repositories/IssueRepository.java
index d6eda2c7..31b4f687 100644
--- a/src/main/java/com/homework/library/repositories/IssueRepository.java
+++ b/src/main/java/com/homework/library/repositories/IssueRepository.java
@@ -1,10 +1,9 @@
 package com.homework.library.repositories;
 
-
 import com.homework.library.models.Issue;
 import org.springframework.data.jpa.repository.JpaRepository;
 import java.util.List;
 
 public interface IssueRepository extends JpaRepository<Issue, Long> {
     List<Issue> findByStudent_Usn(String usn);
-}
+}
\ No newline at end of file
diff --git a/src/test/java/com/homework/library/LibraryApplicationTests.java b/src/test/java/com/homework/library/LibraryApplicationTests.java
index ff9f973b..04bd8329 100644
--- a/src/test/java/com/homework/library/LibraryApplicationTests.java
+++ b/src/test/java/com/homework/library/LibraryApplicationTests.java
@@ -1,13 +1,59 @@
 package com.homework.library;
 
+import com.homework.library.models.Book;
+import com.homework.library.repositories.BookRepository;
+import com.homework.library.repositories.AuthorRepository;
+import com.homework.library.repositories.StudentRepository;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.context.SpringBootTest;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import java.util.ArrayList;
+import java.util.List;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.when;
 
-@SpringBootTest
-class LibraryApplicationTests {
+public class LibraryApplicationTests {
 
-	@Test
-	void contextLoads() {
-	}
+    @Mock
+    private BookRepository bookRepository;
 
-}
+    @Mock
+    private AuthorRepository authorRepository;
+
+    @Mock
+    private StudentRepository studentRepository;
+
+    @InjectMocks
+    private LibraryApplication libraryApp;  // La clase que estamos probando
+
+    @BeforeEach
+    void setUp() {
+        MockitoAnnotations.openMocks(this); // Inicializa los mocks de Mockito
+    }
+
+    @Test
+    void testDisplayBooks_NoBooks() {
+        when(bookRepository.findAll()).thenReturn(new ArrayList<>());
+        //  Dado que displayBooks es privado, es posible que debas usar la reflexión
+        //  o refactorizar tu código para que sea más fácil de probar.
+        //  Por ejemplo, extrae la lógica en una clase separada.
+        //  Este ejemplo muestra el concepto, pero deberás adaptarlo.
+        //  libraryApp.displayBooks(bookRepository.findAll());
+        //  La forma en que afirmas la salida depende de cómo captures la salida de la consola
+        //  (lo cual está más allá del alcance de este ejemplo rápido).
+        System.out.println("Prueba: Escenario sin libros");
+    }
+
+    @Test
+    void testDisplayBooks_WithBooks() {
+        List<Book> books = new ArrayList<>();
+        books.add(new Book("111", "Título 1", "Categoría 1", 1));
+        books.add(new Book("222", "Título 2", "Categoría 2", 2));
+        when(bookRepository.findAll()).thenReturn(books);
+        //  La misma nota sobre la prueba de la salida de la consola que arriba.
+        //  libraryApp.displayBooks(bookRepository.findAll());
+        System.out.println("Prueba: Escenario con libros");
+    }
+}
\ No newline at end of file
diff --git a/src/test/java/com/homework/library/repositories/BookRepositoryTests.java b/src/test/java/com/homework/library/repositories/BookRepositoryTests.java
new file mode 100644
index 00000000..cf1493b5
--- /dev/null
+++ b/src/test/java/com/homework/library/repositories/BookRepositoryTests.java
@@ -0,0 +1,40 @@
+package com.homework.library.repositories;
+
+import com.homework.library.models.Book;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager;
+
+import static org.junit.jupiter.api.Assertions.*;
+import java.util.List;  // Import the List class
+
+@DataJpaTest
+public class BookRepositoryTests {
+
+    @Autowired
+    private BookRepository bookRepository;
+
+    @Autowired
+    private TestEntityManager entityManager;
+
+    @Test
+    void testSaveBook() {
+        Book book = new Book("789-012", "New Book", "Mystery", 3);
+        Book savedBook = bookRepository.save(book);
+        assertNotNull(savedBook.getIsbn());
+        assertEquals("New Book", savedBook.getTitle());
+    }
+
+    @Test
+    void testFindBookByTitle() {
+        Book book = new Book("456-789", "Find Me", "Thriller", 2);
+        entityManager.persist(book);
+        entityManager.flush();
+
+        List<Book> foundBooks = bookRepository.findByTitleContainingIgnoreCase("find me");
+
+        assertEquals(1, foundBooks.size());
+        assertEquals("Find Me", foundBooks.get(0).getTitle());
+    }
+}
\ No newline at end of file
diff --git a/src/test/java/com/homework/library/repositories/ModelTests.java b/src/test/java/com/homework/library/repositories/ModelTests.java
new file mode 100644
index 00000000..a3bd8f9a
--- /dev/null
+++ b/src/test/java/com/homework/library/repositories/ModelTests.java
@@ -0,0 +1,38 @@
+package com.homework.library.repositories;
+
+import com.homework.library.models.Author;
+import com.homework.library.models.Book;
+import com.homework.library.models.Student;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class ModelTests {
+
+    @Test
+    void testCreateBook() {
+        Book book = new Book("123-456", "Libro de Prueba", "Ficción", 5);
+        assertNotNull(book);
+        assertEquals("123-456", book.getIsbn());
+        assertEquals("Libro de Prueba", book.getTitle());
+        assertEquals("Ficción", book.getCategory());
+        assertEquals(5, book.getQuantity());
+    }
+
+    @Test
+    void testCreateAuthor() {
+        Book book = new Book("123-456", "Libro de Prueba", "Ficción", 5);
+        Author author = new Author("Autor de Prueba", "prueba@ejemplo.com", book);
+        assertNotNull(author);
+        assertEquals("Autor de Prueba", author.getName());
+        assertEquals("prueba@ejemplo.com", author.getEmail());
+        assertEquals(book, author.getBook());
+    }
+
+    @Test
+    void testCreateStudent() {
+        Student student = new Student("S123", "Estudiante de Prueba");
+        assertNotNull(student);
+        assertEquals("S123", student.getUsn());
+        assertEquals("Estudiante de Prueba", student.getName());
+    }
+}
\ No newline at end of file

From 1b345dce5580cef6db98d5cc4711dd2c70787ae5 Mon Sep 17 00:00:00 2001
From: Saiguer10 <eljosemsp@gmail.com>
Date: Wed, 30 Apr 2025 17:20:07 +0200
Subject: [PATCH 22/24] Commit test ok

---
 .../homework/library/LibraryApplicationTests.java  | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/src/test/java/com/homework/library/LibraryApplicationTests.java b/src/test/java/com/homework/library/LibraryApplicationTests.java
index 04bd8329..9d7ccfd5 100644
--- a/src/test/java/com/homework/library/LibraryApplicationTests.java
+++ b/src/test/java/com/homework/library/LibraryApplicationTests.java
@@ -15,7 +15,7 @@
 import static org.mockito.Mockito.when;
 
 public class LibraryApplicationTests {
-
+    // con mock creamos objetos simulados para los repositorios siguientes, y evitamos acceso real a la bbdd.
     @Mock
     private BookRepository bookRepository;
 
@@ -27,7 +27,7 @@ public class LibraryApplicationTests {
 
     @InjectMocks
     private LibraryApplication libraryApp;  // La clase que estamos probando
-
+    // inyectamos automaticamente los mocks en una instancia de la aplicacion, la clase que estamos probando.
     @BeforeEach
     void setUp() {
         MockitoAnnotations.openMocks(this); // Inicializa los mocks de Mockito
@@ -36,13 +36,9 @@ void setUp() {
     @Test
     void testDisplayBooks_NoBooks() {
         when(bookRepository.findAll()).thenReturn(new ArrayList<>());
-        //  Dado que displayBooks es privado, es posible que debas usar la reflexión
-        //  o refactorizar tu código para que sea más fácil de probar.
-        //  Por ejemplo, extrae la lógica en una clase separada.
-        //  Este ejemplo muestra el concepto, pero deberás adaptarlo.
+        // simula el caso en que no hay libros en la base de datos;
         //  libraryApp.displayBooks(bookRepository.findAll());
-        //  La forma en que afirmas la salida depende de cómo captures la salida de la consola
-        //  (lo cual está más allá del alcance de este ejemplo rápido).
+
         System.out.println("Prueba: Escenario sin libros");
     }
 
@@ -52,7 +48,7 @@ void testDisplayBooks_WithBooks() {
         books.add(new Book("111", "Título 1", "Categoría 1", 1));
         books.add(new Book("222", "Título 2", "Categoría 2", 2));
         when(bookRepository.findAll()).thenReturn(books);
-        //  La misma nota sobre la prueba de la salida de la consola que arriba.
+        // simula un caso donde hay dos libros dispobibles;
         //  libraryApp.displayBooks(bookRepository.findAll());
         System.out.println("Prueba: Escenario con libros");
     }

From 9613ba636deccdc1bd3293804b2b4433d9209d55 Mon Sep 17 00:00:00 2001
From: Saiguer10 <eljosemsp@gmail.com>
Date: Mon, 5 May 2025 17:50:09 +0200
Subject: [PATCH 23/24] Update application.properties

---
 src/main/resources/application.properties | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 82d491d8..0f824526 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1,8 +1,8 @@
 spring.application.name=library
 spring.datasource.url=jdbc:mysql://localhost:3306/library
 spring.datasource.username=root
-spring.datasource.password=Paula2020$
+spring.datasource.password=1234
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 
 //spring.jpa.hibernate.ddl-auto=validate
-spring.jpa.hibernate.ddl-auto=update
\ No newline at end of file
+spring.jpa.hibernate.ddl-auto=update

From 9e35982413f565953c03adff31feb26c6fd089c7 Mon Sep 17 00:00:00 2001
From: Saiguer10 <eljosemsp@gmail.com>
Date: Mon, 5 May 2025 17:50:45 +0200
Subject: [PATCH 24/24] Delete src/main/resources/application.properties

---
 src/main/resources/application.properties | 8 --------
 1 file changed, 8 deletions(-)
 delete mode 100644 src/main/resources/application.properties

diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
deleted file mode 100644
index 0f824526..00000000
--- a/src/main/resources/application.properties
+++ /dev/null
@@ -1,8 +0,0 @@
-spring.application.name=library
-spring.datasource.url=jdbc:mysql://localhost:3306/library
-spring.datasource.username=root
-spring.datasource.password=1234
-spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
-
-//spring.jpa.hibernate.ddl-auto=validate
-spring.jpa.hibernate.ddl-auto=update