<?php

declare(strict_types=1);

/**
 * Script untuk menjalankan migration yang belum dijalankan
 * Usage: php bin/run_migrations.php
 */

require __DIR__ . '/../vendor/autoload.php';

use App\Config\AppConfig;
use App\Support\Database;

// Load environment variables
AppConfig::loadEnv(__DIR__ . '/..');

echo "=== Menjalankan Database Migrations ===\n\n";

// Get database connection
$dbHost = AppConfig::get('DB_HOST', 'localhost');
$dbName = AppConfig::get('DB_NAME', '');
$dbUser = AppConfig::get('DB_USER', '');
$dbPass = AppConfig::get('DB_PASS', '');

if (empty($dbName) || empty($dbUser)) {
    echo "❌ Error: Database credentials tidak lengkap di .env\n";
    exit(1);
}

try {
    $db = Database::getConnection($dbHost, $dbName, $dbUser, $dbPass);
    
    $migrationsDir = __DIR__ . '/../migrations';
    $migrationFiles = [
        '001_create_audit_logs.sql',
        '002_create_hourly_summary.sql',
        '003_create_realtime_events.sql',
        '004_add_camera_to_gates.sql'
    ];
    
    foreach ($migrationFiles as $migrationFile) {
        $migrationPath = $migrationsDir . '/' . $migrationFile;
        
        if (!file_exists($migrationPath)) {
            echo "⚠️  File migration tidak ditemukan: {$migrationFile}\n";
            continue;
        }
        
        echo "Menjalankan: {$migrationFile}...\n";
        
        $sql = file_get_contents($migrationPath);
        
        // Remove comments and clean up SQL
        $sql = preg_replace('/--.*$/m', '', $sql);
        $sql = preg_replace('/\/\*.*?\*\//s', '', $sql);
        
        // Split by semicolon, but keep multi-line statements intact
        $statements = [];
        $currentStatement = '';
        $lines = explode("\n", $sql);
        
        foreach ($lines as $line) {
            $line = trim($line);
            if (empty($line)) {
                continue;
            }
            
            $currentStatement .= $line . "\n";
            
            // If line ends with semicolon, it's a complete statement
            if (substr(rtrim($line), -1) === ';') {
                $stmt = trim($currentStatement);
                if (!empty($stmt) && strlen($stmt) > 5) {
                    $statements[] = $stmt;
                }
                $currentStatement = '';
            }
        }
        
        // Add any remaining statement
        if (!empty(trim($currentStatement))) {
            $statements[] = trim($currentStatement);
        }
        
        foreach ($statements as $statement) {
            if (empty(trim($statement))) {
                continue;
            }
            
            try {
                $db->exec($statement);
            } catch (\PDOException $e) {
                // Skip jika error karena table/column sudah ada
                $errorMsg = $e->getMessage();
                if (strpos($errorMsg, 'already exists') !== false || 
                    strpos($errorMsg, 'Duplicate column') !== false ||
                    strpos($errorMsg, 'Duplicate key name') !== false) {
                    echo "  ⚠️  Sudah ada: " . substr($errorMsg, 0, 100) . "\n";
                } else {
                    echo "  ❌ Error: " . $errorMsg . "\n";
                    throw $e;
                }
            }
        }
        
        echo "  ✅ Selesai: {$migrationFile}\n\n";
    }
    
    echo "=== Migration Selesai ===\n";
    
    // Verifikasi tabel
    echo "\n=== Verifikasi Tabel ===\n";
    $requiredTables = ['audit_logs', 'hourly_summary', 'realtime_events'];
    
    foreach ($requiredTables as $table) {
        try {
            $stmt = $db->query("SHOW TABLES LIKE '{$table}'");
            $exists = $stmt->fetch() !== false;
            
            if ($exists) {
                echo "  ✅ Tabel '{$table}' ada\n";
            } else {
                echo "  ❌ Tabel '{$table}' tidak ada\n";
            }
        } catch (PDOException $e) {
            echo "  ❌ Error cek tabel '{$table}': " . $e->getMessage() . "\n";
        }
    }
    
    // Cek field camera di gates
    echo "\n=== Verifikasi Field Camera di Gates ===\n";
    try {
        $stmt = $db->query("SHOW COLUMNS FROM gates LIKE 'camera'");
        $exists = $stmt->fetch() !== false;
        
        if ($exists) {
            echo "  ✅ Field 'camera' ada di tabel gates\n";
        } else {
            echo "  ❌ Field 'camera' tidak ada di tabel gates\n";
        }
    } catch (PDOException $e) {
        echo "  ❌ Error cek field camera: " . $e->getMessage() . "\n";
    }
    
} catch (PDOException $e) {
    echo "❌ Error: " . $e->getMessage() . "\n";
    exit(1);
}