✨feature: Initial commit

includes/api.php

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+<?php
+require_once './bill.php';
+require_once './db.php';
+
+header('Content-Type: application/json');
+
+class InvalidActionException extends Exception {}
+
+try {
+  $action = $_GET['action'] ?? '';
+
+  switch($action) {
+    case 'add':
+      $data = [
+        'date' => $_POST['date'],
+        'billName' => $_POST['billName'],
+        'amount' => (float)$_POST['amount'],
+        'paymentId' => $_POST['paymentId'],
+        'year' => (int)explode('-', $_POST['date'])[0]
+      ];
+
+      echo json_encode(['success' => Bill::add($data)]);
+      break;
+
+    case 'getAll':
+      echo json_encode(Bill::getAll()->fetchAll(PDO::FETCH_ASSOC));
+      break;
+
+    case 'getTotals':
+      echo json_encode(Bill::getYearlyTotals()->fetchAll(PDO::FETCH_ASSOC));
+      break;
+
+    default:
+      throw new InvalidActionException('Invalid action');
+  }
+} catch(Exception $e) {
+  http_response_code(500);
+
+  echo json_encode(['error' => $e->getMessage()]);
+}

includes/bill.php

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+<?php
+class Bill {
+  public static function getAll() {
+    $db = DB::connect();
+
+    return $db->query("SELECT * FROM bills ORDER BY billDate DESC");
+  }
+
+  public static function add($data) {
+    $db = DB::connect();
+
+    $stmt = $db->prepare("INSERT INTO bills
+      (billDate, billName, amount, paymentId, year)
+      VALUES (?, ?, ?, ?, ?)");
+
+    return $stmt->execute([
+      $data['date'],
+      $data['billName'],
+      $data['amount'],
+      $data['paymentId'],
+      $data['year']
+    ]);
+  }
+
+  public static function getYearlyTotals() {
+    $db = DB::connect();
+
+    return $db->query("SELECT year, billName, SUM(amount) as total
+      FROM bills GROUP BY year, billName");
+  }
+}

includes/db.php

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+<?php
+class DB {
+  public static function connect() {
+    $db = new PDO('sqlite:'.__DIR__.'/../data/bills.db');
+
+    $db->exec("CREATE TABLE IF NOT EXISTS bills (
+        id INTEGER PRIMARY KEY,
+        billDate TEXT NOT NULL,
+        billName TEXT NOT NULL,
+        amount REAL NOT NULL,
+        paymentId TEXT,
+        year INTEGER NOT NULL
+      )");
+
+    return $db;
+  }
+}

includes/init.php

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+<?php
+// Set up error reporting for development (disable in production)
+error_reporting(E_ALL);
+ini_set('display_errors', 1);
+
+// Define the base path for includes
+define('BASE_PATH', __DIR__ . '/');
+
+// Autoload classes from the includes directory
+spl_autoload_register(function ($className) {
+  $filePath = BASE_PATH . '/' . strtolower($className) . '.php';
+
+  if (file_exists($filePath)) {
+    require_once $filePath;
+  }
+});
+
+// Start session management
+session_start();
+
+// Additional configuration can be added here if needed