<?php
// db/migrate.php

require_once __DIR__ . '/config.php';

header('Content-Type: text/plain');

echo "Running database migrations...\n\n";

$pdo = db_connect();

if (!$pdo) {
    echo "[ERROR] Could not connect to the database. Please check db/config.php and environment variables.\n";
    exit;
}

echo "Connection successful.\n";

$statements = [
    'CREATE TABLE IF NOT EXISTS products (
        id INT AUTO_INCREMENT PRIMARY KEY,
        name VARCHAR(255) NOT NULL,
        sku VARCHAR(100) UNIQUE,
        description TEXT,
        long_description TEXT,
        technical_details TEXT,
        price DECIMAL(10, 2) NOT NULL DEFAULT 0.00,
        stock_quantity INT NOT NULL DEFAULT 0,
        image_url VARCHAR(255),
        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
        updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;'
];

// Execute statements
foreach ($statements as $statement) {
    try {
        $pdo->exec($statement);
        echo "[SUCCESS] Executed: " . substr($statement, 0, 80) . "...\n";
    } catch (PDOException $e) {
        echo "[ERROR] Failed to execute statement. \nError: " . $e->getMessage() . "\n";
        echo "Statement: \n" . $statement . "\n";
    }
}

echo "\nMigration script finished.\n";