<?php
// Simple migration script
require_once __DIR__ . '/config.php';

try {
    $pdo = db();
    echo "Connected to database successfully.\n";

    // 1. Create migrations table if it doesn't exist
    $pdo->exec("CREATE TABLE IF NOT EXISTS `migrations` (
        `id` INT AUTO_INCREMENT PRIMARY KEY,
        `migration` VARCHAR(255) NOT NULL,
        `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;");
    echo "Checked/created `migrations` table.\n";

    // 2. Get all executed migrations
    $executedMigrations = $pdo->query("SELECT migration FROM `migrations`")->fetchAll(PDO::FETCH_COLUMN);
    echo "Found " . count($executedMigrations) . " executed migrations.\n";

    // 3. Find all migration files
    $migrationFiles = glob(__DIR__ . '/migrations/*.sql');
    echo "Found " . count($migrationFiles) . " migration files.\n";

    // 4. Run pending migrations
    $migrationsRun = 0;
    foreach ($migrationFiles as $file) {
        $migrationName = basename($file);
        if (!in_array($migrationName, $executedMigrations)) {
            echo "Running migration: {$migrationName}...\n";
            
            // Execute the SQL file
            $sql = file_get_contents($file);
            $pdo->exec($sql);

            // Record the migration
            $stmt = $pdo->prepare("INSERT INTO `migrations` (migration) VALUES (?)");
            $stmt->execute([$migrationName]);
            
            echo "Successfully ran and recorded migration: {$migrationName}\n";
            $migrationsRun++;
        }
    }

    if ($migrationsRun === 0) {
        echo "No new migrations to run.\n";
    } else {
        echo "Finished running {$migrationsRun} new migrations.\n";
    }

} catch (PDOException $e) {
    die("Database error: " . $e->getMessage());
} catch (Exception $e) {
    die("An error occurred: " . $e->getMessage());
}