Mareh A.

finance-tracker/.prettierrc

@@ -0,0 +1,6 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "none"
+}

finance-tracker/app.js

@@ -1,3 +1,2 @@
 // This is the entrypoint for your application.
 // node app.js
-

finance-tracker/data.js

@@ -1,2 +1,45 @@
 // Place here the transaction data array. Use it in your application as needed.
-const transactions = [];
+const transactions = [
+  {
+    id: 1,
+    type: 'income',
+    category: 'salary',
+    amount: 3000,
+    description: 'Monthly salary',
+    date: '2025-01-15'
+  },
+  {
+    id: 2,
+    type: 'expense',
+    category: 'groceries',
+    amount: 1000,
+    description: 'Weekly groceries shopping',
+    date: '2025-01-16'
+  },
+  {
+    id: 3,
+    type: 'expense',
+    category: 'rent',
+    amount: 1500,
+    description: 'Monthly rent payment',
+    date: '2025-01-30'
+  },
+  {
+    id: 4,
+    type: 'income',
+    category: 'freelance',
+    amount: 500,
+    description: 'Freelance project payment',
+    date: '2025-01-20'
+  },
+  {
+    id: 5,
+    type: 'expense',
+    category: 'entertainment',
+    amount: 75,
+    description: 'Movie tickets',
+    date: '2025-01-18'
+  }
+];
+
+module.exports = transactions;

finance-tracker/finance.js

@@ -1,27 +1,155 @@
+/***2. Required Functions**
+
+Implement these functions using appropriate loops and array methods:
+
+- `addTransaction(transaction)` - Add new transaction to array
+- `getTotalIncome()` - Sum all income using a loop
+- `getTotalExpenses()` - Sum all expenses using a loop
+- `getBalance()` - Calculate total income minus expenses
+- `getTransactionsByCategory(category)` - Filter transactions (use loop + push or indexOf/includes)
+- `getLargestExpense()` - Find highest expense amount
+- `printAllTransactions()` - Display all transactions with formatting*/
+
+const transactions = require('./data.js');
+const chalk = require('chalk');
 function addTransaction(transaction) {
   // TODO: Implement this function
+  const newTransaction = {
+    ...transaction,
+    id: transactions.length + 1
+  };
+  transactions.push(newTransaction);
 }
 
 function getTotalIncome() {
   // TODO: Implement this function
+  let total = 0;
+  for (let i = 0; i < transactions.length; i++) {
+    if (transactions[i].type === 'income') {
+      //total = transactions[i].amount + total;
+      total += transactions[i].amount;
+    }
+  }
+  return total;
 }
 
 function getTotalExpenses() {
   // TODO: Implement this function
+  let total = 0;
+  //for(const transaction of transactions)
+  for (let i = 0; i < transactions.length; i++) {
+    if (transactions[i].type === 'expense') {
+      total = transactions[i].amount + total;
+    }
+  }
+  return total;
 }
 
 function getBalance() {
   // TODO: Implement this function
+  const Balance = getTotalIncome() - getTotalExpenses();
+  return Balance;
 }
 
 function getTransactionsByCategory(category) {
   // TODO: Implement this function
+  const result = [];
+  for (let i = 0; i < transactions.length; i++) {
+    if (transactions[i].category === category) {
+      result.push(transactions[i]);
+    }
+  }
+  return result;
 }
 
 function getLargestExpense() {
-  // TODO: Implement this function
+  let largest = null;
+
+  for (let i = 0; i < transactions.length; i++) {
+    if (transactions[i].type === 'expense') {
+      if (largest === null || transactions[i].amount > largest.amount) {
+        largest = transactions[i];
+      }
+    }
+  }
+
+  return largest;
 }
 
 function printAllTransactions() {
-  // TODO: Implement this function
-}
+  console.log(chalk.cyan.bold('\n 💰 PERSONAL FINANCE TRACKER 💰\n'));
+
+  for (let i = 0; i < transactions.length; i++) {
+    const transaction = transactions[i];
+    const { id, type, description, amount, category } = transaction;
+    const typeDisplay =
+      type === 'income'
+        ? chalk.green.bold('[income]')
+        : chalk.red.bold('[expense]');
+
+    const amountDisplay =
+      type === 'income' ? chalk.green(`€${amount}`) : chalk.red(`€${amount}`);
+
+    console.log(
+      `${chalk.yellow(id)}. ${typeDisplay} ${description} - ${amountDisplay} ` +
+        `(${chalk.yellow(category)})`
+    );
+  }
+}
+
+function printSummary() {
+  const totalIncome = getTotalIncome();
+  const totalExpenses = getTotalExpenses();
+  const balance = getBalance();
+  const largestExpense = getLargestExpense();
+  const transactionCount = transactions.length;
+
+  console.log(chalk.cyan.bold('\n📊 FINANCIAL SUMMARY 📊\n'));
+
+  console.log(chalk.bold(`Total Income: ${chalk.green(`€${totalIncome}`)}`));
+
+  console.log(chalk.bold(`Total Expenses: ${chalk.red(`€${totalExpenses}`)}`));
+
+  const balanceColor = balance >= 0 ? chalk.cyan : chalk.red;
+  console.log(chalk.bold(`Current Balance: ${balanceColor(`€${balance}`)}`));
+
+  if (largestExpense) {
+    console.log(
+      chalk.bold(
+        `Largest Expense: ${largestExpense.description} (` +
+          `${chalk.red(`€${largestExpense.amount}`)})`
+      )
+    );
+  }
+
+  console.log(chalk.bold(`Total Transactions : ${transactionCount}`));
+}
+
+function removeTransaction(id) {
+  let indexToRemove = -1;
+  let i = 0;
+
+  while (i < transactions.length) {
+    if (transactions[i].id === id) {
+      indexToRemove = i;
+      break;
+    }
+    i++;
+  }
+
+  if (indexToRemove !== -1) {
+    return transactions.splice(indexToRemove, 1)[0];
+  }
+  return null;
+}
+module.exports = {
+  addTransaction,
+  getTotalIncome,
+  getTotalExpenses,
+  getBalance,
+  getTransactionsByCategory,
+  getLargestExpense,
+  printAllTransactions,
+  printSummary,
+  removeTransaction
+};

finance-tracker/package.json

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+{
+  "name": "c55-core-week-4",
+  "version": "1.0.0",
+  "description": "The week 4 assignment for the HackYourFuture Core program can be found at the following link: https://hub.hackyourfuture.nl/core-program-week-4-assignment",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/mareh-aboghanem/c55-core-week-4.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs",
+  "bugs": {
+    "url": "https://github.com/mareh-aboghanem/c55-core-week-4/issues"
+  },
+  "homepage": "https://github.com/mareh-aboghanem/c55-core-week-4#readme",
+  "dependencies": {
+    "chalk": "^4.1.2"
+  },
+  "devDependencies": {
+    "prettier": "^3.8.1"
+  }
+}

finance-tracker/run.js

@@ -0,0 +1,4 @@
+const { printAllTransactions, printSummary } = require('./finance.js');
+
+printAllTransactions();
+printSummary();