Shadi A.

.gitignore

@@ -1,3 +1,5 @@
+node_modules/
+
 # System files
 .DS_Store
 Thumbs.db

.prettierrc

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+{
+  "semi": true,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "es5",
+  "printWidth": 80,
+  "arrowParens": "always"
+}

finance-tracker/app.js

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-// This is the entrypoint for your application.
-// node app.js
+// Import all the functions I need from my finance tracker
+import {
+  printAllTransactions,
+  printSummary,
+  addTransaction,
+  getTransactionsByCategory,
+  getLargestExpense,
+  searchByDateRange,
+  groupTransactionsByMonth,
+  averageExpensePerCategory,
+  removeTransactionById,
+  findConsecutiveExpensiveMonths,
+  getBalance,
+  getTotalIncome,
+  getTotalExpenses,
+} from './finance.js';
+import { transactions } from './data.js';
+import { styles } from './style.js';
+import { createInterface } from 'readline';
 
+// Show a nice header at the top
+function displayHeader() {
+  console.log(styles.bold('\n╔════════════════════════════════════════╗'));
+  console.log(styles.bold('║   💰 PERSONAL FINANCE TRACKER 💰      ║'));
+  console.log(styles.bold('╚════════════════════════════════════════╝\n'));
+}
+
+// Display menu options so I know what each number does
+function displayMenu() {
+  console.log(styles.bold('\n📋 CHOOSE AN OPTION:\n'));
+  console.log('1.  📊 View All Transactions');
+  console.log('2.  📈 View Summary Report');
+  console.log('3.  ➕ Add New Transaction');
+  console.log('4.  🗑️ Remove Transaction by ID');
+  console.log('5.  💰 Quick Balance Check');
+  console.log('6.  🔍 Search by Category');
+  console.log('7.  📅 Search by Date Range');
+  console.log('8.  📆 View by Month');
+  console.log('9.  💸 View Largest Expense');
+  console.log('10. 📊 Average Expense per Category');
+  console.log('11. 📈 Consecutive Expensive Months\n');
+}
+
+// Example 1: Just show me everything
+function example1() {
+  displayHeader();
+  console.log(styles.bold('📊 ALL TRANSACTIONS\n'));
+  printAllTransactions();
+}
+
+// Example 2: Full summary with all the stats
+function example2() {
+  displayHeader();
+  printSummary();
+}
+
+// Example 3: Add a new transaction
+function example3() {
+  displayHeader();
+  console.log(styles.bold('➕ ADD NEW TRANSACTION\n'));
+
+  const newTransaction = {
+    id: 100,
+    type: 'expense',
+    category: 'test',
+    amount: 50,
+    description: 'Test transaction',
+    date: '2025-01-01'
+  };
+
+  addTransaction(newTransaction);
+  console.log(styles.income('✅ Transaction added successfully!'));
+  console.log('New transaction:', newTransaction);
+  console.log('\nUpdated transactions:');
+  printAllTransactions();
+}
+
+// Example 4: Remove a transaction by ID
+function example4() {
+  displayHeader();
+  console.log(styles.bold('🗑️ REMOVE TRANSACTION BY ID\n'));
+
+  const idToRemove = 1;
+  const removed = removeTransactionById(idToRemove);
+
+  if (removed) {
+    console.log(styles.income(`✅ Transaction with ID ${idToRemove} removed successfully!`));
+  } else {
+    console.log(styles.expense(`❌ No transaction found with ID ${idToRemove}`));
+  }
+
+  console.log('\nUpdated transactions:');
+  printAllTransactions();
+}
+
+// Example 5: Quick check to see if I'm broke or not
+function example5() {
+  displayHeader();
+  const income = getTotalIncome();
+  const expenses = getTotalExpenses();
+  const balance = getBalance();
+
+  console.log(styles.bold('💰 QUICK BALANCE CHECK\n'));
+  console.log(styles.income(`Total Income:    €${income.toFixed(2)}`));
+  console.log(styles.expense(`Total Expenses:  €${expenses.toFixed(2)}`));
+  console.log('─────────────────────────────');
+
+  // Show balance in green if positive, red if negative
+  const balanceText =
+    balance >= 0
+      ? styles.balancePositive(`€${balance.toFixed(2)}`)
+      : styles.balanceNegative(`€${balance.toFixed(2)}`);
+  console.log(styles.bold(`Current Balance: ${balanceText}\n`));
+}
+
+// Example 6: Find all transactions for a specific category
+// Change 'groceries' below to search different categories
+function example6() {
+  displayHeader();
+  console.log(styles.bold('🔍 SEARCH BY CATEGORY\n'));
+
+  const category = 'groceries'; // Try: 'rent', 'salary', 'entertainment', etc.
+
+  const results = getTransactionsByCategory(category);
+
+  if (results.length === 0) {
+    console.log(styles.expense(`❌ No transactions found for category: ${category}`));
+    return;
+  }
+
+  console.log(styles.income(`✅ Found ${results.length} transaction(s) for "${category}":\n`));
+  results.forEach((t) => {
+    const amount =
+      t.type === 'income'
+        ? styles.income(`€${t.amount}`)
+        : styles.expense(`€${t.amount}`);
+    console.log(
+      `  ${t.id}. [${t.type.toUpperCase()}] ${t.category} - ${amount} (${t.description || '-'}) - ${t.date}`
+    );
+  });
+}
+
+// Example 7: Search between two dates
+// Useful for checking spending in a specific month
+function example7() {
+  displayHeader();
+  console.log(styles.bold('📅 SEARCH BY DATE RANGE\n'));
+
+  const startDate = '2025-01-01';
+  const endDate = '2025-01-31';
+
+  const results = searchByDateRange(startDate, endDate);
+
+  if (results.length === 0) {
+    console.log(styles.expense('\n❌ No transactions found in this date range'));
+    return;
+  }
+
+  console.log(styles.income(`✅ Found ${results.length} transaction(s) from ${startDate} to ${endDate}:\n`));
+  results.forEach((t) => {
+    const amount =
+      t.type === 'income'
+        ? styles.income(`€${t.amount}`)
+        : styles.expense(`€${t.amount}`);
+    console.log(
+      `  ${t.date}: [${t.type.toUpperCase()}] ${t.category} - ${amount} (${t.description || '-'})`
+    );
+  });
+}
+
+// Example 8: See everything organized by month
+// Good for comparing different months
+function example8() {
+  displayHeader();
+  console.log(styles.bold('📆 TRANSACTIONS BY MONTH\n'));
+
+  const grouped = groupTransactionsByMonth(transactions);
+  const months = Object.keys(grouped).sort();
+
+  if (months.length === 0) {
+    console.log(styles.expense('❌ No transactions found'));
+    return;
+  }
+
+  // Loop through each month and show all transactions
+  months.forEach((month) => {
+    const monthTransactions = grouped[month];
+    // Calculate if the month was good or bad (income - expenses)
+    const total = monthTransactions.reduce((sum, t) => {
+      return t.type === 'income' ? sum + t.amount : sum - t.amount;
+    }, 0);
+
+    const totalText =
+      total >= 0 
+        ? styles.income(`+€${total.toFixed(2)}`) 
+        : styles.expense(`-€${Math.abs(total).toFixed(2)}`);
+
+    console.log(styles.bold(`\n${month} (${monthTransactions.length} transactions) - Net: ${totalText}`));
+    monthTransactions.forEach((t) => {
+      const amount =
+        t.type === 'income'
+          ? styles.income(`€${t.amount}`)
+          : styles.expense(`€${t.amount}`);
+      console.log(
+        `  ${t.date}: [${t.type.toUpperCase()}] ${t.category} - ${amount} (${t.description || '-'})`
+      );
+    });
+  });
+}
+
+// Example 9: What was my biggest expense?
+function example9() {
+  displayHeader();
+  console.log(styles.bold('💸 LARGEST EXPENSE\n'));
+
+  const largest = getLargestExpense();
+  if (!largest) {
+    console.log(styles.expense('❌ No expenses found'));
+    return;
+  }
+
+  console.log(
+    styles.expense(
+      `💸 €${largest.amount} - ${largest.category} (${largest.description || '-'}) on ${largest.date}`
+    )
+  );
+}
+
+// Example 10: Average spending per category
+// Helps me see where most of my money goes
+function example10() {
+  displayHeader();
+  console.log(styles.bold('📊 AVERAGE EXPENSE PER CATEGORY\n'));
+
+  const averages = averageExpensePerCategory();
+  const categories = Object.keys(averages);
+
+  if (categories.length === 0) {
+    console.log(styles.expense('❌ No expenses found'));
+    return;
+  }
+
+  categories.forEach((category) => {
+    console.log(`  ${category}: ${styles.expense(`€${averages[category].toFixed(2)}`)}`);
+  });
+}
+
+// Example 11: Find months where I spent more and more each month
+// This helps spot bad spending habits
+function example11() {
+  displayHeader();
+  console.log(styles.bold('📈 CONSECUTIVE EXPENSIVE MONTHS\n'));
+
+  const streaks = findConsecutiveExpensiveMonths();
+
+  if (streaks.length === 0) {
+    console.log(styles.income('✅ No consecutive expensive months found'));
+    return;
+  }
+
+  streaks.forEach((streak, index) => {
+    console.log(styles.expense(`  Streak ${index + 1}: ${streak.join(' → ')}`));
+  });
+}
+
+// MAIN PROGRAM
+displayMenu();
+
+const rl = createInterface({
+  input: process.stdin,
+  output: process.stdout
+});
+
+rl.question('Enter the number of the option you want to run (1-11): ', (input) => {
+  const exampleToRun = parseInt(input);
+
+  if (isNaN(exampleToRun) || exampleToRun < 1 || exampleToRun > 11) {
+    console.log(styles.expense('❌ Invalid input! Please enter a number between 1 and 11.'));
+    rl.close();
+    return;
+  }
+
+  console.log(styles.bold(`\n▶️  Running Example ${exampleToRun}...\n`));
+
+  // Switch to run the selected example
+  switch (exampleToRun) {
+    case 1:
+      example1();
+      break;
+    case 2:
+      example2();
+      break;
+    case 3:
+      example3();
+      break;
+    case 4:
+      example4();
+      break;
+    case 5:
+      example5();
+      break;
+    case 6:
+      example6();
+      break;
+    case 7:
+      example7();
+      break;
+    case 8:
+      example8();
+      break;
+    case 9:
+      example9();
+      break;
+    case 10:
+      example10();
+      break;
+    case 11:
+      example11();
+      break;
+    default:
+      console.log(styles.expense('❌ Invalid example number!'));
+  }
+
+  rl.close();
+});