week 4

Library_system/Book.txt

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+-------------------------------------------------------------------
+-  BOOKS                  = 1                      
+-  ADD BOOK               = 2                      
+-  SEARCH BOOK            = 3                      
+-  DELETE BOOK            = 4           EXIT   = 0  
+-                                                  
+------------------------------------------------------------------

Library_system/Membership.txt

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+---------------------------------------------------------------------
+-  All MEMBERS            = 1      =    LEND BOOK           = 5     -
+-  ADD MEMBER             = 2      =    RETURN BOOK         = 6     -
+-  UPDATE MEMBER          = 3      =    TRACK BOOK          = 7     -
+-  DELETE MEMBER          = 4      =    EXIT                = 0     -
+-                                                                   -
+---------------------------------------------------------------------

Library_system/Welcome.txt

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+--------------------------------------------------------------------------------------------
+-                     Welcome to public Library                                            -
+-                                                                                          -
+-       1-Membership Transactions  1                                                       -
+-       2-Book Transactions        2                                                       -
+-       3-Exit                     0                                                       -
+-                                                                                          -
+--------------------------------------------------------------------------------------------

Library_system/book.json

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+[]

Library_system/lending.py

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+import json
+import os
+import time_management
+import new_book_transaction 
+import membership 
+
+def write_tracking(data):
+
+    try:
+        with open('Library_system/tracking.json', 'w',encoding="utf-8") as file:
+            json.dump(data, file,ensure_ascii=False ,indent=4)
+    except Exception as e:
+        print(f"An error occurred while saving: {e}")
+        return []
+
+
+
+def tracking_read():
+
+    try:
+        if not os.path.exists("Library_system/tracking.json") or os.path.getsize("Library_system/tracking.json") == 0:
+            return []
+        with open("Library_system/tracking.json", "r", encoding="utf-8", errors="ignore") as file:
+            tracking_data = json.load(file)
+            return tracking_data
+    except FileNotFoundError:
+        tracking_data = []
+        return tracking_data
+
+
+def lending_book(phone_number,barcode):
+
+    now_time,return_time = time_management.generate_return_date()
+
+    searchBook = new_book_transaction.search_book(barcode)
+    member_ = membership.members_search(phone_number,inter=1)
+    print(member_)
+    print(searchBook)
+    if member_ and searchBook:
+        new_track = searchBook|member_
+        new_track["lend_date"] = now_time
+        new_track["return_date"] = return_time
+        tracking_data=tracking_read()
+
+        new_book_transaction.delete_book(barcode)
+        tracking_data.append(new_track)
+
+        write_tracking(tracking_data)
+    else:
+
+        print("Member or book not found")
+
+
+
+def return_book(barcode):  # 
+
+    tracked_books = tracking_read()
+
+    books = new_book_transaction.read()
+
+    for tracked_book in tracked_books:
+
+        if tracked_book["Barcode"]==barcode:
+            new_book = {
+                    "Barcode": tracked_book["Barcode"],
+                    "Book_Title": tracked_book["Book_Title"],
+                    "Author": tracked_book["Author"],
+                    "Publisher": tracked_book["Publisher"],
+                }
+
+            books.append(new_book)
+            new_book_transaction.save(books)
+
+    tracked_books = [book for book in tracked_books if book["Barcode"] != tracked_book["Barcode"]]
+
+
+    write_tracking(tracked_books)
+
+
+def view_lent_books():
+
+    tracking_data = tracking_read()
+    if tracking_data!=[]:
+        sorted_data = sorted(tracking_data, key=lambda x: x['return_date'])
+
+
+        for track in sorted_data:
+            print(f" Member ID: {track['member_ID']}\n Member Name: {track['member_name']}\n Member Phone: {track['phone_number']}\n Member Address: {track['address']}\n\n Book Title: {track['Book_Title']}\n Author: {track['Author']}\n Publisher: {track['Publisher']}\n Barcode: {track['Barcode']}\n Lend Date: {track['lend_date']}\n Return Date: {track['return_date']}\n {"="*20}")
+    else:
+
+        print("There is book lended")
+

Library_system/main.py

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+import new_book_transaction
+import membership
+from screening import screen
+import os
+import lending
+
+
+
+def get_input(prompt, error_message="Field cannot be empty. Please try again."):
+    while True:
+        value = input(prompt).strip().lower()
+        if value:
+            return value
+        print(error_message)
+
+
+def main_menu():
+
+
+    while True:
+        try:
+            screen("Welcome")
+            option=input("\nPlease choose the options above and press Enter to continue:")
+
+            if option == "1":
+
+
+
+                while True:
+                    screen("Membership")
+                    mem_opt=input("\nPlease choose the options above and press Enter to continue:")
+
+                    match mem_opt:
+                        case "2":
+
+                            name = get_input("Enter name and surname: ")
+                            address = get_input("Enter address: ")
+                            phone = get_input("Enter phone number: ")
+                            membership.add_new_member(name, phone, address)
+
+                        case "4":
+                            if (membership.member_control()):
+                                phone = get_input("Enter phone number of the member to delete: ")
+                                membership.members_delete(phone)
+                            else:
+                                print("No Members")  
+                        case "3":
+                            if (membership.member_control()):
+                                phone = get_input("Enter phone number of the member to view details:")
+                                membership.member_update(phone)  
+                            else:
+                                print("No Members")  
+
+
+
+
+                        case "1":
+
+                                membership.member_control()
+
+
+
+
+                        case "5":
+
+                                phone_number = get_input("Enter phone number of the member: ")
+                                barcode = get_input("Enter the book barcode to lend: ")
+                                lending.lending_book(phone_number, barcode)
+                        case "6":
+
+                                barcode = get_input("Enter the book barcode to return: ")
+                                lending.return_book(barcode)
+                        case "7":
+                                lending.view_lent_books()
+
+                        case "0":   
+                            break  
+
+                        case _:
+                            print("Invalid option, please try again")
+
+            elif option == "2":
+                while True:
+                    screen("Book")
+                    book_opt=input("\nPlease choose the options above and press Enter to continue:")
+                    match book_opt:
+                        case "1":
+
+                            books=new_book_transaction.books()
+                        case "2":
+                            title = get_input("Enter the book title: ")
+                            author = get_input("Enter the author: ")
+                            publisher = get_input("Enter the publisher: ")
+                            res=new_book_transaction.add_book(title, author, publisher)
+                            if res:
+                                print("Book added successfully")
+                            else:
+                                print("Book could not be added.Please try again")
+
+                        case "4":
+                            barcode = get_input("Enter the book barcode to delete: ")
+                            res=new_book_transaction.delete_book(barcode)
+
+                            if (res):
+                                print("Book deleted successfully")
+                            else:    
+                                print("Book could not be found")
+                        case "3":
+                            title = get_input("Enter the book title to search: ")
+                            res=new_book_transaction.search_book(title)
+                            if (res):
+                                print(f"Title: {res['Book_Title']}\nAuthor: {res['Author']}\nPublisher: {res['Publisher']}\nBarcode: {res['Barcode']}")
+                            else:
+                                print("Book not found")
+                        case "0":
+                            break
+                        case _:
+                            print("Invalid option, please try again")
+
+
+            elif option == "0":
+                print("Thank you for using the Library System")
+                break
+            else:
+                print("Please input a number between 0 - 2")
+
+        except Exception as e:
+            print(e)
+
+if __name__ == "__main__":
+    main_menu()

Library_system/member.json

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+[]