Edit index.php via Editor

assets/css/custom.css

@@ -0,0 +1,75 @@
+/* Custom Styles for Stock Management App */
+
+body {
+    font-family: 'Roboto', sans-serif;
+    background-color: #121212;
+    color: #FFFFFF;
+}
+
+.navbar {
+    background-color: #1E1E1E;
+    border-bottom: 1px solid #FFA500;
+}
+
+.navbar-brand {
+    color: #FFA500 !important;
+    font-weight: bold;
+}
+
+.stat-card {
+    background-color: #1E1E1E;
+    border: 1px solid #333;
+    border-radius: .5rem;
+    padding: 1.5rem;
+    margin-bottom: 1rem;
+    color: #FFFFFF;
+}
+
+.stat-card h5 {
+    color: #A0A0A0;
+    font-size: 1rem;
+    text-transform: uppercase;
+}
+
+.stat-card .stat-value {
+    font-size: 2.5rem;
+    font-weight: bold;
+    color: #FFA500;
+}
+
+.btn-primary {
+    background-color: #FFA500;
+    border-color: #FFA500;
+    color: #121212;
+    font-weight: bold;
+}
+
+.btn-primary:hover {
+    background-color: #FFC107;
+    border-color: #FFC107;
+    color: #121212;
+}
+
+.table {
+    background-color: #1E1E1E;
+    color: #FFFFFF;
+}
+
+thead th {
+    border-bottom: 2px solid #FFA500 !important;
+    color: #FFFFFF;
+}
+
+tbody td {
+    border-color: #333 !important;
+}
+
+.table-hover tbody tr:hover {
+    background-color: #2a2a2a;
+    color: #FFA500;
+}
+
+.badge-warning {
+    background-color: #FFA500;
+    color: #121212;
+}

assets/js/main.js

@@ -0,0 +1,5 @@
+// Custom JS for Stock Management App
+
+document.addEventListener('DOMContentLoaded', function () {
+    // Future interactive scripts will go here
+});

db/config.php

@@ -7,11 +7,29 @@ define('DB_PASS', '9eb17a13-4a89-4e11-8517-0c201096e935');
 
 function db() {
     static $pdo;
-  if (!$pdo) {
+    if ($pdo) {
+        return $pdo;
+    }
+
+    try {
+        // Connect to MySQL server without specifying a database
+        $pdo_temp = new PDO('mysql:host='.DB_HOST, DB_USER, DB_PASS, [
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+        ]);
+        // Create the database if it doesn't exist
+        $pdo_temp->exec("CREATE DATABASE IF NOT EXISTS `".DB_NAME."`");
+
+        // Now connect to the specific database
         $pdo = new PDO('mysql:host='.DB_HOST.';dbname='.DB_NAME.';charset=utf8mb4', DB_USER, DB_PASS, [
             PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
             PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
         ]);
+
+    } catch (PDOException $e) {
+        // If connection fails, it might be a more serious issue
+        die("Database connection failed: " . $e->getMessage());
     }
+
     return $pdo;
 }

db/migrate.php

@@ -0,0 +1,22 @@
+<?php
+require_once __DIR__ . '/config.php';
+
+echo "Running migrations...\n";
+
+try {
+    $pdo = db();
+    $migration_files = glob(__DIR__ . '/migrations/*.sql');
+    sort($migration_files);
+
+    foreach ($migration_files as $file) {
+        echo "- Applying " . basename($file) . "...\n";
+        $sql = file_get_contents($file);
+        $pdo->exec($sql);
+    }
+
+    echo "All migrations completed successfully!\n";
+} catch (PDOException $e) {
+    die("Migration failed: " . $e->getMessage() . "\n");
+}
+
+

db/migrations/001_initial_schema.sql

@@ -0,0 +1,31 @@
+-- Initial Schema for Stock Management App
+
+CREATE TABLE IF NOT EXISTS `products` (
+  `id` INT AUTO_INCREMENT PRIMARY KEY,
+  `name` VARCHAR(255) NOT NULL,
+  `type` ENUM('jant', 'lastik', 'akü') NOT NULL,
+  `stock_quantity` INT NOT NULL DEFAULT 0,
+  `purchase_price` DECIMAL(10, 2) NOT NULL,
+  `sale_price` DECIMAL(10, 2) NOT NULL,
+  `low_stock_threshold` INT NOT NULL DEFAULT 5,
+  `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE IF NOT EXISTS `sales` (
+  `id` INT AUTO_INCREMENT PRIMARY KEY,
+  `total_amount` DECIMAL(10, 2) NOT NULL,
+  `profit_amount` DECIMAL(10, 2) NOT NULL,
+  `payment_method` VARCHAR(50) DEFAULT 'nakit',
+  `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE IF NOT EXISTS `sale_items` (
+  `id` INT AUTO_INCREMENT PRIMARY KEY,
+  `sale_id` INT NOT NULL,
+  `product_id` INT NOT NULL,
+  `quantity` INT NOT NULL,
+  `unit_price` DECIMAL(10, 2) NOT NULL,
+  `total_price` DECIMAL(10, 2) NOT NULL,
+  FOREIGN KEY (`sale_id`) REFERENCES `sales`(`id`) ON DELETE CASCADE,
+  FOREIGN KEY (`product_id`) REFERENCES `products`(`id`) ON DELETE RESTRICT
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

db/migrations/002_add_users_table.sql

@@ -0,0 +1,6 @@
+CREATE TABLE IF NOT EXISTS `users` (
+    `id` INT AUTO_INCREMENT PRIMARY KEY,
+    `username` VARCHAR(50) NOT NULL UNIQUE,
+    `password` VARCHAR(255) NOT NULL,
+    `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

edit-product.php

@@ -0,0 +1,108 @@
+<?php
+require_once 'db/config.php';
+
+$product_id = $_GET['id'] ?? null;
+
+// ID yoksa veya geçersizse ana sayfaya yönlendir
+if (!$product_id) {
+    $_SESSION['error'] = "Geçersiz ürün ID'si.";
+    header('Location: products.php');
+    exit();
+}
+
+$pdo = db();
+
+// Form gönderildiğinde (POST request)
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $name = $_POST['name'] ?? '';
+    $type = $_POST['type'] ?? '';
+    $stock_quantity = $_POST['stock_quantity'] ?? 0;
+    $purchase_price = $_POST['purchase_price'] ?? 0.0;
+    $sale_price = $_POST['sale_price'] ?? 0.0;
+    $low_stock_threshold = $_POST['low_stock_threshold'] ?? 5;
+
+    if (!empty($name) && !empty($type) && is_numeric($stock_quantity) && is_numeric($purchase_price) && is_numeric($sale_price)) {
+        try {
+            $stmt = $pdo->prepare("UPDATE products SET name = ?, type = ?, stock_quantity = ?, purchase_price = ?, sale_price = ?, low_stock_threshold = ? WHERE id = ?");
+            $stmt->execute([$name, $type, $stock_quantity, $purchase_price, $sale_price, $low_stock_threshold, $product_id]);
+            $_SESSION['notification'] = "Ürün başarıyla güncellendi.";
+            header('Location: products.php');
+            exit();
+        } catch (PDOException $e) {
+            $_SESSION['error'] = "Veritabanı hatası: " . $e->getMessage();
+        }
+    } else {
+        $_SESSION['error'] = "Lütfen tüm alanları doğru bir şekilde doldurun.";
+    }
+    // Hata durumunda aynı sayfada kal, form tekrar dolsun
+    header("Location: edit-product.php?id=" . $product_id);
+    exit();
+}
+
+// Sayfa ilk yüklendiğinde (GET request)
+try {
+    $stmt = $pdo->prepare("SELECT * FROM products WHERE id = ?");
+    $stmt->execute([$product_id]);
+    $product = $stmt->fetch(PDO::FETCH_ASSOC);
+
+    if (!$product) {
+        $_SESSION['error'] = "Ürün bulunamadı.";
+        header('Location: products.php');
+        exit();
+    }
+} catch (PDOException $e) {
+    $_SESSION['error'] = "Veritabanı hatası: " . $e->getMessage();
+    header('Location: products.php');
+    exit();
+}
+
+require_once 'partials/header.php';
+?>
+
+<h1 class="mb-4">Ürünü Düzenle</h1>
+
+<div class="card">
+    <div class="card-header">
+        <?php echo htmlspecialchars($product['name']); ?>
+    </div>
+    <div class="card-body">
+        <form action="edit-product.php?id=<?php echo $product_id; ?>" method="POST">
+            <div class="row">
+                <div class="col-md-6 mb-3">
+                    <label for="name" class="form-label">Ürün Adı</label>
+                    <input type="text" class="form-control" id="name" name="name" value="<?php echo htmlspecialchars($product['name']); ?>" required>
+                </div>
+                <div class="col-md-6 mb-3">
+                    <label for="type" class="form-label">Ürün Tipi</label>
+                    <select class="form-select" id="type" name="type" required>
+                        <option value="jant" <?php echo ($product['type'] === 'jant') ? 'selected' : ''; ?>>Jant</option>
+                        <option value="lastik" <?php echo ($product['type'] === 'lastik') ? 'selected' : ''; ?>>Lastik</option>
+                        <option value="akü" <?php echo ($product['type'] === 'akü') ? 'selected' : ''; ?>>Akü</option>
+                    </select>
+                </div>
+            </div>
+            <div class="row">
+                <div class="col-md-3 mb-3">
+                    <label for="stock_quantity" class="form-label">Stok Miktarı</label>
+                    <input type="number" class="form-control" id="stock_quantity" name="stock_quantity" value="<?php echo htmlspecialchars($product['stock_quantity']); ?>" required>
+                </div>
+                <div class="col-md-3 mb-3">
+                    <label for="purchase_price" class="form-label">Alış Fiyatı</label>
+                    <input type="number" step="0.01" class="form-control" id="purchase_price" name="purchase_price" value="<?php echo htmlspecialchars($product['purchase_price']); ?>" required>
+                </div>
+                <div class="col-md-3 mb-3">
+                    <label for="sale_price" class="form-label">Satış Fiyatı</label>
+                    <input type="number" step="0.01" class="form-control" id="sale_price" name="sale_price" value="<?php echo htmlspecialchars($product['sale_price']); ?>" required>
+                </div>
+                 <div class="col-md-3 mb-3">
+                    <label for="low_stock_threshold" class="form-label">Düşük Stok Uyarısı</label>
+                    <input type="number" class="form-control" id="low_stock_threshold" name="low_stock_threshold" value="<?php echo htmlspecialchars($product['low_stock_threshold']); ?>" required>
+                </div>
+            </div>
+            <button type="submit" class="btn btn-primary">Değişiklikleri Kaydet</button>
+            <a href="products.php" class="btn btn-secondary">İptal</a>
+        </form>
+    </div>
+</div>
+
+<?php require_once 'partials/footer.php'; ?>

index.php

@@ -1,150 +1,249 @@
 <?php
-declare(strict_types=1);
-@ini_set('display_errors', '1');
-@error_reporting(E_ALL);
-@date_default_timezone_set('UTC');
+session_start();
+
+/* ========== VERİTABANI BAĞLANTISI ========== */
+$host = 'localhost';
+$db   = 'store_db'; // veritabanı adını değiştir
+$user = 'root';     // veritabanı kullanıcı adı
+$pass = '';         // veritabanı şifre
+$charset = 'utf8mb4';
+
+$dsn = "mysql:host=$host;dbname=$db;charset=$charset";
+try {
+    $pdo = new PDO($dsn, $user, $pass, [
+        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
+    ]);
+} catch (PDOException $e) {
+    die("Veritabanına bağlanılamadı: " . $e->getMessage());
+}
+
+/* ========== TABLOLARIN OLUŞTURULMASI (İLK SEFERDE YAP) ========== */
+$pdo->exec("
+CREATE TABLE IF NOT EXISTS products (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    name VARCHAR(255) NOT NULL,
+    price DECIMAL(10,2) NOT NULL,
+    stock_quantity INT DEFAULT 0,
+    low_stock_threshold INT DEFAULT 5
+);
+
+CREATE TABLE IF NOT EXISTS sales (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE IF NOT EXISTS sale_items (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    sale_id INT NOT NULL,
+    product_id INT NOT NULL,
+    quantity INT NOT NULL,
+    total_price DECIMAL(10,2) NOT NULL,
+    profit_amount DECIMAL(10,2) NOT NULL,
+    FOREIGN KEY (sale_id) REFERENCES sales(id) ON DELETE CASCADE,
+    FOREIGN KEY (product_id) REFERENCES products(id) ON DELETE CASCADE
+);
+");
+
+/* ========== İŞLEMLER (GET/POST) ========== */
+// Ürün ekleme
+if(isset($_POST['add_product'])){
+    $stmt = $pdo->prepare("INSERT INTO products (name, price, stock_quantity, low_stock_threshold) VALUES (?,?,?,?)");
+    $stmt->execute([$_POST['name'], $_POST['price'], $_POST['stock_quantity'], $_POST['low_stock_threshold']]);
+    $_SESSION['success'] = "Ürün eklendi.";
+}
+
+// Ürün silme
+if(isset($_GET['delete_product'])){
+    $stmt = $pdo->prepare("DELETE FROM products WHERE id=?");
+    $stmt->execute([$_GET['delete_product']]);
+    $_SESSION['success'] = "Ürün silindi.";
+}
+
+// Satış ekleme
+if(isset($_POST['add_sale'])){
+    $product_ids = $_POST['product_id'];
+    $quantities = $_POST['quantity'];
+    try {
+        $pdo->beginTransaction();
+        $pdo->exec("INSERT INTO sales (created_at) VALUES (NOW())");
+        $sale_id = $pdo->lastInsertId();
+        foreach($product_ids as $i => $pid){
+            $qty = intval($quantities[$i]);
+            if($qty <= 0) continue;
+            $product = $pdo->prepare("SELECT price, stock_quantity FROM products WHERE id=?");
+            $product->execute([$pid]);
+            $p = $product->fetch();
+            if(!$p || $p['stock_quantity'] < $qty) continue;
+            $total_price = $p['price'] * $qty;
+            $profit_amount = $total_price * 0.2;
+            $stmt = $pdo->prepare("INSERT INTO sale_items (sale_id, product_id, quantity, total_price, profit_amount) VALUES (?,?,?,?,?)");
+            $stmt->execute([$sale_id, $pid, $qty, $total_price, $profit_amount]);
+            $pdo->prepare("UPDATE products SET stock_quantity = stock_quantity - ? WHERE id=?")->execute([$qty, $pid]);
+        }
+        $pdo->commit();
+        $_SESSION['success'] = "Satış eklendi.";
+    } catch(PDOException $e){
+        $pdo->rollBack();
+        $_SESSION['error'] = "Satış eklenirken hata: ".$e->getMessage();
+    }
+}
+
+/* ========== VERİLERİN ÇEKİLMESİ ========== */
+// Dashboard istatistikleri
+$stats = [
+    'total_revenue' => $pdo->query("SELECT SUM(total_price) FROM sale_items")->fetchColumn() ?: 0,
+    'total_profit' => $pdo->query("SELECT SUM(profit_amount) FROM sale_items")->fetchColumn() ?: 0,
+    'product_count' => $pdo->query("SELECT COUNT(*) FROM products")->fetchColumn(),
+    'low_stock_count' => $pdo->query("SELECT COUNT(*) FROM products WHERE stock_quantity <= low_stock_threshold")->fetchColumn()
+];
+
+// Son 5 satış
+$recent_sales = $pdo->query("
+    SELECT p.name AS product_name, si.quantity, si.total_price, s.created_at
+    FROM sale_items si
+    JOIN sales s ON si.sale_id = s.id
+    JOIN products p ON si.product_id = p.id
+    ORDER BY s.created_at DESC
+    LIMIT 5
+")->fetchAll(PDO::FETCH_ASSOC);
+
+// Ürün listesi
+$products = $pdo->query("SELECT * FROM products ORDER BY name ASC")->fetchAll(PDO::FETCH_ASSOC);
+
+// Stoğu azalan ürünler
+$low_stock_products = $pdo->query("SELECT * FROM products WHERE stock_quantity <= low_stock_threshold ORDER BY stock_quantity ASC")->fetchAll(PDO::FETCH_ASSOC);
 
-$phpVersion = PHP_VERSION;
-$now = date('Y-m-d H:i:s');
 ?>
-<!doctype html>
-<html lang="en">
+
+<!DOCTYPE html>
+<html lang="tr">
 <head>
-  <meta charset="utf-8" />
-  <meta name="viewport" content="width=device-width, initial-scale=1" />
-  <title>New Style</title>
-<?php
-// Read project preview data from environment
-$projectDescription = $_SERVER['PROJECT_DESCRIPTION'] ?? '';
-$projectImageUrl = $_SERVER['PROJECT_IMAGE_URL'] ?? '';
-?>
-<?php if ($projectDescription): ?>
-  <!-- Meta description -->
-  <meta name="description" content='<?= htmlspecialchars($projectDescription) ?>' />
-  <!-- Open Graph meta tags -->
-  <meta property="og:description" content="<?= htmlspecialchars($projectDescription) ?>" />
-  <!-- Twitter meta tags -->
-  <meta property="twitter:description" content="<?= htmlspecialchars($projectDescription) ?>" />
-<?php endif; ?>
-<?php if ($projectImageUrl): ?>
-  <!-- Open Graph image -->
-  <meta property="og:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
-  <!-- Twitter image -->
-  <meta property="twitter:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
-<?php endif; ?>
-  <link rel="preconnect" href="https://fonts.googleapis.com">
-  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap" rel="stylesheet">
-  <style>
-    :root {
-      --bg-color-start: #6a11cb;
-      --bg-color-end: #2575fc;
-      --text-color: #ffffff;
-      --card-bg-color: rgba(255, 255, 255, 0.01);
-      --card-border-color: rgba(255, 255, 255, 0.1);
-    }
-    body {
-      margin: 0;
-      font-family: 'Inter', sans-serif;
-      background: linear-gradient(45deg, var(--bg-color-start), var(--bg-color-end));
-      color: var(--text-color);
-      display: flex;
-      justify-content: center;
-      align-items: center;
-      min-height: 100vh;
-      text-align: center;
-      overflow: hidden;
-      position: relative;
-    }
-    body::before {
-      content: '';
-      position: absolute;
-      top: 0;
-      left: 0;
-      width: 100%;
-      height: 100%;
-      background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path d="M-10 10L110 10M10 -10L10 110" stroke-width="1" stroke="rgba(255,255,255,0.05)"/></svg>');
-      animation: bg-pan 20s linear infinite;
-      z-index: -1;
-    }
-    @keyframes bg-pan {
-      0% { background-position: 0% 0%; }
-      100% { background-position: 100% 100%; }
-    }
-    main {
-      padding: 2rem;
-    }
-    .card {
-      background: var(--card-bg-color);
-      border: 1px solid var(--card-border-color);
-      border-radius: 16px;
-      padding: 2rem;
-      backdrop-filter: blur(20px);
-      -webkit-backdrop-filter: blur(20px);
-      box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
-    }
-    .loader {
-      margin: 1.25rem auto 1.25rem;
-      width: 48px;
-      height: 48px;
-      border: 3px solid rgba(255, 255, 255, 0.25);
-      border-top-color: #fff;
-      border-radius: 50%;
-      animation: spin 1s linear infinite;
-    }
-    @keyframes spin {
-      from { transform: rotate(0deg); }
-      to   { transform: rotate(360deg); }
-    }
-    .hint {
-      opacity: 0.9;
-    }
-    .sr-only {
-      position: absolute;
-      width: 1px; height: 1px;
-      padding: 0; margin: -1px;
-      overflow: hidden;
-      clip: rect(0, 0, 0, 0);
-      white-space: nowrap; border: 0;
-    }
-    h1 {
-      font-size: 3rem;
-      font-weight: 700;
-      margin: 0 0 1rem;
-      letter-spacing: -1px;
-    }
-    p {
-      margin: 0.5rem 0;
-      font-size: 1.1rem;
-    }
-    code {
-      background: rgba(0,0,0,0.2);
-      padding: 2px 6px;
-      border-radius: 4px;
-      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
-    }
-    footer {
-      position: absolute;
-      bottom: 1rem;
-      font-size: 0.8rem;
-      opacity: 0.7;
-    }
-  </style>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<title>Stok & Satış Takip</title>
+<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
+<link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.5/font/bootstrap-icons.css" rel="stylesheet">
 </head>
 <body>
-  <main>
-    <div class="card">
-      <h1>Analyzing your requirements and generating your website…</h1>
-      <div class="loader" role="status" aria-live="polite" aria-label="Applying initial changes">
-        <span class="sr-only">Loading…</span>
+<nav class="navbar navbar-expand-lg navbar-dark bg-dark mb-4">
+<div class="container-fluid">
+<a class="navbar-brand" href="#">Elit Lastik</a>
+<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav">
+<span class="navbar-toggler-icon"></span>
+</button>
+<div class="collapse navbar-collapse" id="navbarNav">
+<ul class="navbar-nav ms-auto">
+<li class="nav-item"><a class="nav-link" href="#">Dashboard</a></li>
+<li class="nav-item"><a class="nav-link" href="#products">Ürünler</a></li>
+<li class="nav-item"><a class="nav-link" href="#sales">Satışlar</a></li>
+</ul>
 </div>
-      <p class="hint"><?= ($_SERVER['HTTP_HOST'] ?? '') === 'appwizzy.com' ? 'AppWizzy' : 'Flatlogic' ?> AI is collecting your requirements and applying the first changes.</p>
-      <p class="hint">This page will update automatically as the plan is implemented.</p>
-      <p>Runtime: PHP <code><?= htmlspecialchars($phpVersion) ?></code> — UTC <code><?= htmlspecialchars($now) ?></code></p>
 </div>
-  </main>
-  <footer>
-    Page updated: <?= htmlspecialchars($now) ?> (UTC)
-  </footer>
+</nav>
+<div class="container">
+
+<?php if(isset($_SESSION['success'])) { echo "<div class='alert alert-success'>".$_SESSION['success']."</div>"; unset($_SESSION['success']); } ?>
+<?php if(isset($_SESSION['error'])) { echo "<div class='alert alert-danger'>".$_SESSION['error']."</div>"; unset($_SESSION['error']); } ?>
+
+<h1 class="mb-4">Dashboard</h1>
+<div class="row mb-4">
+<div class="col-md-3">
+<div class="card text-white bg-primary mb-3">
+<div class="card-body">
+<h5 class="card-title">Toplam Gelir</h5>
+<p class="card-text"><?php echo number_format($stats['total_revenue'],2); ?> TL</p>
+</div></div></div>
+<div class="col-md-3">
+<div class="card text-white bg-success mb-3">
+<div class="card-body">
+<h5 class="card-title">Toplam Kâr</h5>
+<p class="card-text"><?php echo number_format($stats['total_profit'],2); ?> TL</p>
+</div></div></div>
+<div class="col-md-3">
+<div class="card text-white bg-info mb-3">
+<div class="card-body">
+<h5 class="card-title">Ürün Çeşidi</h5>
+<p class="card-text"><?php echo $stats['product_count']; ?></p>
+</div></div></div>
+<div class="col-md-3">
+<div class="card text-white bg-warning mb-3">
+<div class="card-body">
+<h5 class="card-title">Düşük Stok</h5>
+<p class="card-text"><?php echo $stats['low_stock_count']; ?> Ürün</p>
+</div></div></div>
+</div>
+
+<h2 id="products" class="mb-3">Ürünler</h2>
+<form method="POST" class="mb-3">
+<div class="row g-2">
+<div class="col-md-3"><input type="text" name="name" class="form-control" placeholder="Ürün Adı" required></div>
+<div class="col-md-2"><input type="number" step="0.01" name="price" class="form-control" placeholder="Fiyat" required></div>
+<div class="col-md-2"><input type="number" name="stock_quantity" class="form-control" placeholder="Stok" required></div>
+<div class="col-md-2"><input type="number" name="low_stock_threshold" class="form-control" placeholder="Düşük Stok" required></div>
+<div class="col-md-3"><button type="submit" name="add_product" class="btn btn-success w-100">Ürün Ekle</button></div>
+</div>
+</form>
+
+<table class="table table-striped table-hover mb-5">
+<thead>
+<tr><th>Ad</th><th>Fiyat</th><th>Stok</th><th>Düşük Stok</th><th>İşlemler</th></tr>
+</thead>
+<tbody>
+<?php foreach($products as $p): ?>
+<tr>
+<td><?php echo htmlspecialchars($p['name']); ?></td>
+<td><?php echo number_format($p['price'],2); ?> TL</td>
+<td><?php echo $p['stock_quantity']; ?></td>
+<td><?php echo $p['low_stock_threshold']; ?></td>
+<td><a href="?delete_product=<?php echo $p['id']; ?>" class="btn btn-danger btn-sm" onclick="return confirm('Silmek istediğine emin misin?')">Sil</a></td>
+</tr>
+<?php endforeach; ?>
+</tbody>
+</table>
+
+<h2 id="sales" class="mb-3">Satışlar</h2>
+<form method="POST" class="mb-3">
+<table class="table table-bordered">
+<tr><th>Ürün</th><th>Adet</th></tr>
+<?php foreach($products as $p): ?>
+<tr>
+<td><?php echo htmlspecialchars($p['name']); ?> (Stok: <?php echo $p['stock_quantity']; ?>)</td>
+<td>
+<input type="number" name="quantity[]" value="0" min="0" max="<?php echo $p['stock_quantity']; ?>" class="form-control">
+<input type="hidden" name="product_id[]" value="<?php echo $p['id']; ?>">
+</td>
+</tr>
+<?php endforeach; ?>
+</table>
+<button type="submit" name="add_sale" class="btn btn-success mb-5">Satışı Kaydet</button>
+</form>
+
+<h3 class="mb-3">Son 5 Satış</h3>
+<table class="table table-striped table-hover mb-5">
+<thead>
+<tr><th>Ürün</th><th>Adet</th><th>Toplam</th><th>Tarih</th></tr>
+</thead>
+<tbody>
+<?php foreach($recent_sales as $s): ?>
+<tr>
+<td><?php echo htmlspecialchars($s['product_name']); ?></td>
+<td><?php echo $s['quantity']; ?></td>
+<td><?php echo number_format($s['total_price'],2); ?> TL</td>
+<td><?php echo date('d/m/Y H:i', strtotime($s['created_at'])); ?></td>
+</tr>
+<?php endforeach; ?>
+</tbody>
+</table>
+
+<h3>Düşük Stok Ürünler</h3>
+<ul>
+<?php foreach($low_stock_products as $lp): ?>
+<li><?php echo htmlspecialchars($lp['name']); ?> - Stok: <?php echo $lp['stock_quantity']; ?></li>
+<?php endforeach; ?>
+</ul>
+
+</div>
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
 </body>
 </html>

partials/footer.php

@@ -0,0 +1,6 @@
+    </div>
+</div>
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
+<script src="assets/js/main.js?v=<?php echo time(); ?>"></script>
+</body>
+</html>

partials/header.php

@@ -0,0 +1,56 @@
+<?php
+session_start();
+$current_page = basename($_SERVER['PHP_SELF']);
+?>
+<!DOCTYPE html>
+<html lang="tr">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Stok Yönetim Sistemi</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
+    <link rel="stylesheet" href="assets/css/custom.css?v=<?php echo time(); ?>">
+</head>
+<body>
+<div class="d-flex">
+    <div class="sidebar d-flex flex-column flex-shrink-0 p-3">
+        <a href="index.php" class="d-flex align-items-center mb-3 mb-md-0 me-md-auto text-white text-decoration-none">
+            <i class="bi bi-box-seam-fill me-2"></i>
+            <span class="fs-4">Stok Yönetimi</span>
+        </a>
+        <hr>
+        <ul class="nav nav-pills flex-column mb-auto">
+            <li class="nav-item">
+                <a href="index.php" class="nav-link <?php echo ($current_page == 'index.php') ? 'active' : ''; ?>">
+                    <i class="bi bi-speedometer2 me-2"></i> Ana Panel
+                </a>
+            </li>
+            <li>
+                <a href="products.php" class="nav-link <?php echo ($current_page == 'products.php') ? 'active' : ''; ?>">
+                    <i class="bi bi-grid me-2"></i> Ürünler
+                </a>
+            </li>
+            <li>
+                <a href="sales.php" class="nav-link <?php echo ($current_page == 'sales.php') ? 'active' : ''; ?>">
+                    <i class="bi bi-receipt me-2"></i> Satışlar
+                </a>
+            </li>
+        </ul>
+        <hr>
+    </div>
+    <div class="main-content flex-grow-1 p-4">
+        <?php if (isset($_SESSION['notification'])): ?>
+            <div class="alert alert-success alert-dismissible fade show" role="alert">
+                <?php echo $_SESSION['notification']; ?>
+                <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+            </div>
+            <?php unset($_SESSION['notification']); ?>
+        <?php endif; ?>
+        <?php if (isset($_SESSION['error'])): ?>
+            <div class="alert alert-danger alert-dismissible fade show" role="alert">
+                <?php echo $_SESSION['error']; ?>
+                <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+            </div>
+            <?php unset($_SESSION['error']); ?>
+        <?php endif; ?>

products.php

@@ -0,0 +1,161 @@
+<?php
+require_once 'db/config.php';
+
+// Form gönderildi mi kontrolü
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $pdo = db();
+
+    // Yeni ürün ekleme işlemi
+    if (isset($_POST['name'])) {
+        $name = $_POST['name'] ?? '';
+        $type = $_POST['type'] ?? '';
+        $stock_quantity = $_POST['stock_quantity'] ?? 0;
+        $purchase_price = $_POST['purchase_price'] ?? 0.0;
+        $sale_price = $_POST['sale_price'] ?? 0.0;
+        $low_stock_threshold = $_POST['low_stock_threshold'] ?? 5;
+
+        if (!empty($name) && !empty($type) && is_numeric($stock_quantity) && is_numeric($purchase_price) && is_numeric($sale_price)) {
+            try {
+                $stmt = $pdo->prepare("INSERT INTO products (name, type, stock_quantity, purchase_price, sale_price, low_stock_threshold) VALUES (?, ?, ?, ?, ?, ?)");
+                $stmt->execute([$name, $type, $stock_quantity, $purchase_price, $sale_price, $low_stock_threshold]);
+                $_SESSION['notification'] = "Ürün başarıyla eklendi!";
+            } catch (PDOException $e) {
+                $_SESSION['error'] = "Veritabanı hatası: " . $e->getMessage();
+            }
+        } else {
+            $_SESSION['error'] = "Lütfen tüm alanları doğru bir şekilde doldurun.";
+        }
+    }
+
+    // Ürün silme işlemi
+    if (isset($_POST['action']) && $_POST['action'] === 'delete') {
+        $product_id = $_POST['product_id'] ?? null;
+        if ($product_id) {
+            try {
+                $stmt = $pdo->prepare("DELETE FROM products WHERE id = ?");
+                $stmt->execute([$product_id]);
+                $_SESSION['notification'] = "Ürün başarıyla silindi.";
+            } catch (PDOException $e) {
+                $_SESSION['error'] = "Hata: Ürün silinemedi. İlişkili satış kayıtları olabilir.";
+            }
+        }
+    }
+
+    // PRG Pattern: Sayfayı yeniden yönlendirerek formun tekrar gönderilmesini engelle
+    header("Location: products.php");
+    exit();
+}
+
+// Ürünleri veritabanından çek
+$products = [];
+try {
+    $pdo = db();
+    $stmt = $pdo->query("SELECT * FROM products ORDER BY created_at DESC");
+    $products = $stmt->fetchAll(PDO::FETCH_ASSOC);
+} catch (PDOException $e) {
+    // Hata mesajını oturuma kaydet ve sayfayı yenilemekten kaçın
+    $_SESSION['error'] = "Ürünler çekilirken hata oluştu: " . $e->getMessage();
+}
+
+require_once 'partials/header.php';
+?>
+
+<h1 class="mb-4">Ürün Yönetimi</h1>
+
+<!-- Yeni Ürün Ekleme Formu -->
+<div class="card mb-4">
+    <div class="card-header">
+        Yeni Ürün Ekle
+    </div>
+    <div class="card-body">
+        <form action="products.php" method="POST">
+            <div class="row">
+                <div class="col-md-6 mb-3">
+                    <label for="name" class="form-label">Ürün Adı</label>
+                    <input type="text" class="form-control" id="name" name="name" required>
+                </div>
+                <div class="col-md-6 mb-3">
+                    <label for="type" class="form-label">Ürün Tipi</label>
+                    <select class="form-select" id="type" name="type" required>
+                        <option value="jant">Jant</option>
+                        <option value="lastik">Lastik</option>
+                        <option value="akü">Akü</option>
+                    </select>
+                </div>
+            </div>
+            <div class="row">
+                <div class="col-md-3 mb-3">
+                    <label for="stock_quantity" class="form-label">Stok Miktarı</label>
+                    <input type="number" class="form-control" id="stock_quantity" name="stock_quantity" required>
+                </div>
+                <div class="col-md-3 mb-3">
+                    <label for="purchase_price" class="form-label">Alış Fiyatı</label>
+                    <input type="number" step="0.01" class="form-control" id="purchase_price" name="purchase_price" required>
+                </div>
+                <div class="col-md-3 mb-3">
+                    <label for="sale_price" class="form-label">Satış Fiyatı</label>
+                    <input type="number" step="0.01" class="form-control" id="sale_price" name="sale_price" required>
+                </div>
+                 <div class="col-md-3 mb-3">
+                    <label for="low_stock_threshold" class="form-label">Düşük Stok Uyarısı</label>
+                    <input type="number" class="form-control" id="low_stock_threshold" name="low_stock_threshold" value="5" required>
+                </div>
+            </div>
+            <button type="submit" class="btn btn-primary">Ürünü Ekle</button>
+        </form>
+    </div>
+</div>
+
+<!-- Ürün Listesi -->
+<div class="card">
+    <div class="card-header">
+        Mevcut Ürünler
+    </div>
+    <div class="card-body">
+        <div class="table-responsive">
+            <table class="table table-striped">
+                <thead>
+                    <tr>
+                        <th>ID</th>
+                        <th>Ad</th>
+                        <th>Tip</th>
+                        <th>Stok</th>
+                        <th>Alış Fiyatı</th>
+                        <th>Satış Fiyatı</th>
+                        <th>Eklendiği Tarih</th>
+                        <th>İşlemler</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php if (empty($products)):
+                        <tr>
+                            <td colspan="8" class="text-center">Henüz hiç ürün eklenmemiş.</td>
+                        </tr>
+                    <?php else: ?>
+                        <?php foreach ($products as $product): ?>
+                            <tr>
+                                <td><?php echo htmlspecialchars($product['id']); ?></td>
+                                <td><?php echo htmlspecialchars($product['name']); ?></td>
+                                <td><?php echo htmlspecialchars($product['type']); ?></td>
+                                <td><?php echo htmlspecialchars($product['stock_quantity']); ?></td>
+                                <td><?php echo htmlspecialchars($product['purchase_price']); ?></td>
+                                <td><?php echo htmlspecialchars($product['sale_price']); ?></td>
+                                <td><?php echo htmlspecialchars($product['created_at']); ?></td>
+                                <td>
+                                    <a href="edit-product.php?id=<?php echo $product['id']; ?>" class="btn btn-sm btn-warning">Düzenle</a>
+                                    <form action="products.php" method="POST" class="d-inline" onsubmit="return confirm('Bu ürünü silmek istediğinizden emin misiniz?');">
+                                        <input type="hidden" name="action" value="delete">
+                                        <input type="hidden" name="product_id" value="<?php echo $product['id']; ?>">
+                                        <button type="submit" class="btn btn-sm btn-danger">Sil</button>
+                                    </form>
+                                </td>
+                            </tr>
+                        <?php endforeach; ?>
+                    <?php endif; ?>
+                </tbody>
+            </table>
+        </div>
+    </div>
+</div>
+
+<?php require_once 'partials/footer.php'; ?>

sales.php

@@ -0,0 +1,162 @@
+<?php
+require_once 'db/config.php';
+
+// Yeni satış ekleme işlemi
+if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['add_sale'])) {
+    $product_id = $_POST['product_id'] ?? null;
+    $quantity = $_POST['quantity'] ?? 0;
+
+    if (empty($product_id) || empty($quantity) || !is_numeric($quantity) || $quantity <= 0) {
+        $_SESSION['error'] = "Lütfen geçerli bir ürün ve adet girin.";
+        header("Location: sales.php");
+        exit();
+    }
+
+    $pdo = db();
+    $pdo->beginTransaction();
+
+    try {
+        // 1. Ürün bilgilerini ve stok durumunu kontrol et
+        $stmt = $pdo->prepare("SELECT name, sale_price, purchase_price, stock_quantity FROM products WHERE id = ? FOR UPDATE");
+        $stmt->execute([$product_id]);
+        $product = $stmt->fetch(PDO::FETCH_ASSOC);
+
+        if (!$product) {
+            throw new Exception("Ürün bulunamadı.");
+        }
+
+        if ($product['stock_quantity'] < $quantity) {
+            throw new Exception("Yetersiz stok! Mevcut stok: " . $product['stock_quantity']);
+        }
+
+        // 2. Satış hesaplamalarını yap
+        $total_amount = $product['sale_price'] * $quantity;
+        $profit_amount = ($product['sale_price'] - $product['purchase_price']) * $quantity;
+
+        // 3. 'sales' tablosuna ana satış kaydını ekle
+        $stmt = $pdo->prepare("INSERT INTO sales (total_amount, profit_amount) VALUES (?, ?)");
+        $stmt->execute([$total_amount, $profit_amount]);
+        $sale_id = $pdo->lastInsertId();
+
+        // 4. 'sale_items' tablosuna satılan ürünü ekle
+        $stmt = $pdo->prepare("INSERT INTO sale_items (sale_id, product_id, quantity, unit_price, total_price) VALUES (?, ?, ?, ?, ?)");
+        $stmt->execute([$sale_id, $product_id, $quantity, $product['sale_price'], $total_amount]);
+
+        // 5. Ürün stoğunu güncelle
+        $stmt = $pdo->prepare("UPDATE products SET stock_quantity = stock_quantity - ? WHERE id = ?");
+        $stmt->execute([$quantity, $product_id]);
+
+        // Her şey yolundaysa işlemi onayla
+        $pdo->commit();
+        $_SESSION['notification'] = "Satış başarıyla kaydedildi.";
+
+    } catch (Exception $e) {
+        // Bir hata olursa tüm işlemleri geri al
+        $pdo->rollBack();
+        $_SESSION['error'] = "Hata: " . $e->getMessage();
+    }
+
+    header("Location: sales.php");
+    exit();
+}
+
+// Sayfa içeriğini hazırlama
+$pdo = db();
+
+// Form için ürünleri çek
+$products_for_form = [];
+try {
+    $products_stmt = $pdo->query("SELECT id, name, sale_price, stock_quantity FROM products WHERE stock_quantity > 0 ORDER BY name ASC");
+    $products_for_form = $products_stmt->fetchAll(PDO::FETCH_ASSOC);
+} catch (PDOException $e) {
+    $_SESSION['error'] = "Ürünler getirilemedi: " . $e->getMessage();
+}
+
+// Görüntülemek için geçmiş satışları çek (JOIN ile)
+$sales_list = [];
+try {
+    $sales_stmt = $pdo->query("
+        SELECT si.id, p.name AS product_name, si.quantity, si.total_price, s.created_at AS sale_date
+        FROM sale_items si
+        JOIN sales s ON si.sale_id = s.id
+        JOIN products p ON si.product_id = p.id
+        ORDER BY s.created_at DESC
+    ");
+    $sales_list = $sales_stmt->fetchAll(PDO::FETCH_ASSOC);
+} catch (PDOException $e) {
+    $_SESSION['error'] = "Satışlar getirilemedi: " . $e->getMessage();
+}
+
+require_once 'partials/header.php';
+?>
+
+<h1 class="mb-4">Satış Yönetimi</h1>
+
+<!-- Yeni Satış Ekleme Formu -->
+<div class="card mb-4">
+    <div class="card-header">Yeni Satış Ekle</div>
+    <div class="card-body">
+        <form action="sales.php" method="POST">
+            <input type="hidden" name="add_sale" value="1">
+            <div class="row">
+                <div class="col-md-8 mb-3">
+                    <label for="product_id" class="form-label">Ürün Seçin</label>
+                    <select class="form-select" id="product_id" name="product_id" required>
+                        <option value="">-- Bir Ürün Seçin --</option>
+                        <?php foreach ($products_for_form as $product): ?>
+                            <option value="<?php echo htmlspecialchars($product['id']); ?>">
+                                <?php echo htmlspecialchars($product['name']); ?> 
+                                (Stok: <?php echo htmlspecialchars($product['stock_quantity']); ?> | 
+                                Fiyat: <?php echo htmlspecialchars(number_format($product['sale_price'], 2)); ?> TL)
+                            </option>                        
+                        <?php endforeach; ?>
+                    </select>
+                </div>
+                <div class="col-md-4 mb-3">
+                    <label for="quantity" class="form-label">Adet</label>
+                    <input type="number" class="form-control" id="quantity" name="quantity" min="1" required>
+                </div>
+            </div>
+            <button type="submit" class="btn btn-primary">Satış Ekle</button>
+        </form>
+    </div>
+</div>
+
+<!-- Geçmiş Satışlar -->
+<div class="card">
+    <div class="card-header">Geçmiş Satışlar</div>
+    <div class="card-body">
+        <div class="table-responsive">
+            <table class="table table-striped">
+                <thead>
+                    <tr>
+                        <th>ID</th>
+                        <th>Ürün Adı</th>
+                        <th>Adet</th>
+                        <th>Toplam Fiyat</th>
+                        <th>Satış Tarihi</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php if (empty($sales_list)): ?>
+                        <tr>
+                            <td colspan="5" class="text-center">Henüz hiç satış yapılmamış.</td>
+                        </tr>
+                    <?php else: ?>
+                        <?php foreach ($sales_list as $sale): ?>
+                            <tr>
+                                <td><?php echo htmlspecialchars($sale['id']); ?></td>
+                                <td><?php echo htmlspecialchars($sale['product_name']); ?></td>
+                                <td><?php echo htmlspecialchars($sale['quantity']); ?></td>
+                                <td><?php echo htmlspecialchars(number_format($sale['total_price'], 2)); ?> TL</td>
+                                <td><?php echo htmlspecialchars($sale['sale_date']); ?></td>
+                            </tr>
+                        <?php endforeach; ?>
+                    <?php endif; ?>
+                </tbody>
+            </table>
+        </div>
+    </div>
+</div>
+
+<?php require_once 'partials/footer.php'; ?>