Diana C.

.gitignore

@@ -156,3 +156,5 @@ dist
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
 
+node_modules/
+

.hyf/README.md

@@ -1,6 +1,7 @@
 # Auto grade tool
 
 ## How it works
+
 1. The auto grade tool runs the `test.sh` script located in this directory.
 2. `test.sh` should write to a file named `score.json` with following JSON format:
    ```json
@@ -12,4 +13,3 @@
    ```
    All scores are out of 100. It is up to the assignment to determine how to calculate the score.
 3. The auto grade runs via a github action on PR creation and updates the PR with the score.
-

.hyf/score.example.json

@@ -2,4 +2,4 @@
   "score": 75,
   "pass": true,
   "passingScore": 50
-}
+}

.prettierrc

@@ -0,0 +1,7 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "es5",
+  "printWidth": 80
+}

README.md

@@ -1,7 +1,9 @@
 # Core program week 4 assignment
+
 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
 
 ## Implementation Instructions
-- Implement the requirements in the `finance-tracker` folder. 
-- Use the existing file structure. 
+
+- Implement the requirements in the `finance-tracker` folder.
+- Use the existing file structure.
 - You are allowed to create additional files if needed.

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: 'housing',
+    amount: 1200,
+    description: 'Rent',
+    date: '2025-01-16',
+  },
+  {
+    id: 3,
+    type: 'expense',
+    category: 'food',
+    amount: 300,
+    description: 'Groceries',
+    date: '2025-01-17',
+  },
+  {
+    id: 4,
+    type: 'income',
+    category: 'side-income',
+    amount: 500,
+    description: 'Freelance',
+    date: '2025-01-18',
+  },
+  {
+    id: 5,
+    type: 'expense',
+    category: 'bills',
+    amount: 150,
+    description: 'Utilities',
+    date: '2025-01-19',
+  },
+];
+
+export { transactions };

finance-tracker/finance.js

@@ -1,27 +1,132 @@
+import { transactions } from './data.js';
+
+
+import chalk from 'chalk';
+
+console.log(chalk.bold('💰 PERSONAL FINANCE TRACKER 💰'));
+console.log('');
+console.log('Transactions count:', transactions.length);
+
+
 function addTransaction(transaction) {
-  // TODO: Implement this function
+  transactions.push({ ...transaction });
 }
 
 function getTotalIncome() {
-  // TODO: Implement this function
+  let totalIncome = 0;
+
+  for (const transaction of transactions) {
+    if (transaction.type === 'income') {
+      totalIncome += transaction.amount;
+    }
+  }
+
+  return totalIncome;
 }
 
+// console.log('Total income:', getTotalIncome());
+
+
 function getTotalExpenses() {
-  // TODO: Implement this function
+  let totalExpenses = 0;
+
+  for (let i = 0; i < transactions.length; i++) {
+    if (transactions[i].type === 'expense') {
+      totalExpenses += transactions[i].amount;
+    }
+  }
+
+  return totalExpenses;
 }
 
 function getBalance() {
-  // TODO: Implement this function
+  const income = getTotalIncome();
+  const expenses = getTotalExpenses();
+
+  return income - expenses;
 }
+// console.log('Balance:', getBalance());
 
 function getTransactionsByCategory(category) {
-  // TODO: Implement this function
+  const result = [];
+
+  for (const transaction of transactions) {
+    if (transaction.category === category) {
+      result.push(transaction);
+    }
+  }
+
+  return result;
 }
+// console.log('Food transactions:', getTransactionsByCategory('food'));
 
 function getLargestExpense() {
-  // TODO: Implement this function
+  let largest = null;
+
+  for (const transaction of transactions) {
+    if (transaction.type === 'expense') {
+      if (largest === null || transaction.amount > largest.amount) {
+        largest = transaction;
+      }
+    }
+  }
+
+  return largest;
 }
+// console.log('Largest expense:', getLargestExpense());
 
 function printAllTransactions() {
-  // TODO: Implement this function
-}
+  console.log(chalk.bold('All Transactions:'));
+
+  for (const transaction of transactions) {
+    const { id, type, description, amount, category } = transaction;
+
+    const label = `[${type.toUpperCase()}]`;
+
+    const amountText =
+      type === 'income' ? chalk.green(`€${amount}`) : chalk.red(`€${amount}`);
+
+    const categoryText = chalk.yellow(category);
+
+    console.log(`${id}. ${label} ${description} - ${amountText} (${categoryText})`);
+  }
+
+  console.log('');
+}
+
+printAllTransactions();
+
+
+
+function printSummary() {
+  const totalIncome = getTotalIncome();
+  const totalExpenses = getTotalExpenses();
+  const balance = getBalance();
+  const count = transactions.length;
+  const largestExpense = getLargestExpense();
+
+  console.log(chalk.bold('📊 FINANCIAL SUMMARY 📊'));
+
+  console.log(chalk.bold(`Total income: €${totalIncome}`));
+  console.log(chalk.bold(`Total expenses: €${totalExpenses}`));
+
+  const balanceText =
+    balance >= 0 ? chalk.cyan(`€${balance}`) : chalk.red(`€${balance}`);
+  console.log(chalk.bold(`Current balance: ${balanceText}`));
+
+  console.log(chalk.bold(`Total transactions: ${count}`));
+
+  if (largestExpense) {
+    console.log(
+      chalk.bold(
+        `Largest expense: ${largestExpense.description} (€${largestExpense.amount})`
+      )
+    );
+  } else {
+    console.log(chalk.bold('Largest expense: none'));
+  }
+
+  console.log('');
+}
+
+printSummary();

package.json

@@ -0,0 +1,28 @@
+{
+  "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",
+    "format": "prettier --write ."
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/dianadenwik/c55-core-week-4.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "module",
+  "bugs": {
+    "url": "https://github.com/dianadenwik/c55-core-week-4/issues"
+  },
+  "homepage": "https://github.com/dianadenwik/c55-core-week-4#readme",
+  "dependencies": {
+    "chalk": "^4.1.2"
+  },
+  "devDependencies": {
+    "prettier": "^3.8.1"
+  }
+}