<?php

declare(strict_types=1);

namespace App\Services;

use App\Services\Emulator\EmulatorBackupService;
use App\Services\Emulator\EmulatorBuildService;
use App\Services\Emulator\EmulatorJarService;
use App\Services\Emulator\EmulatorSourceService;
use App\Services\Emulator\EmulatorSqlService;
use App\Services\Emulator\EmulatorStatusService;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Process;

class EmulatorUpdateService
{
    private readonly EmulatorStatusService $statusService;
    private readonly EmulatorJarService $jarService;
    private readonly EmulatorSourceService $sourceService;
    private readonly EmulatorBuildService $buildService;
    private readonly EmulatorSqlService $sqlService;
    private readonly EmulatorBackupService $backupService;
    private readonly SettingsService $settings;

    public function __construct()
    {
        $this->statusService = new EmulatorStatusService;
        $this->jarService = new EmulatorJarService;
        $this->sourceService = new EmulatorSourceService;
        $this->buildService = new EmulatorBuildService;
        $this->sqlService = new EmulatorSqlService;
        $this->backupService = new EmulatorBackupService;
        $this->settings = app(SettingsService::class);
    }

    public function isConfigured(): bool
    {
        return $this->statusService->isConfigured();
    }

    public function getStatus(): array
    {
        $status = $this->statusService->getStatus();
        $updateCheck = $this->jarService->checkForUpdates();
        $sourceInfo = $this->sourceService->checkForUpdates();

        return array_merge($status, [
            'update_available' => $updateCheck['update_available'] ?? false,
            'current_version' => $updateCheck['current_version'] ?? setting('emulator_version', 'N/A'),
            'latest_version' => $updateCheck['latest_version'] ?? 'N/A',
            'update_type' => $updateCheck['type'] ?? 'unknown',
            'has_source_updates' => $sourceInfo['has_update'] ?? false,
            'latest_sha' => $sourceInfo['latest_sha'] ?? null,
            'latest_message' => $sourceInfo['latest_message'] ?? null,
            'latest_author' => $sourceInfo['latest_author'] ?? null,
            'latest_date' => $sourceInfo['latest_date'] ?? null,
            'stored_sha' => $sourceInfo['stored_sha'] ?? null,
            'stored_date' => $sourceInfo['stored_date'] ?? null,
            'source_info' => $sourceInfo,
        ]);
    }

    public function checkForUpdates(): array
    {
        return $this->jarService->checkForUpdates();
    }

    public function checkForSqlUpdates(bool $recentOnly = true): array
    {
        return $this->sqlService->checkForUpdates($recentOnly);
    }

    public function runSqlUpdates(): array
    {
        return $this->sqlService->runUpdates();
    }

    public function getAppliedSqlUpdates(): array
    {
        return $this->sqlService->getAppliedUpdates();
    }

    public function updateEmulator(): array
    {
        if (! $this->isConfigured()) {
            return ['success' => false, 'error' => 'Geen GitHub URL geconfigureerd'];
        }

        $check = $this->checkForUpdates();

        if (! ($check['update_available'] ?? false)) {
            if ($check['type'] === 'not_found' && ($check['source_available'] ?? false)) {
                return $this->buildFromSource();
            }

            return ['success' => false, 'error' => 'Emulator is al up-to-date'];
        }

        $hasSourceUpdates = ($check['has_source_updates'] ?? false) || ($check['type'] ?? '') === 'source_build';

        if ($hasSourceUpdates && $this->sourceService->isSourceBuildAvailable()) {
            return $this->buildFromSource();
        }

        if ($check['type'] === 'source_build') {
            return $this->buildFromSource();
        }

        if (! ($check['jar_url'] ?? null)) {
            return ['success' => false, 'error' => 'Geen .jar gevonden'];
        }

        $result = $this->jarService->performUpdate($check);

        if ($result['success']) {
            $this->runSqlUpdates();

            if ($this->restartEmulator()) {
                $result['restarted'] = true;
                $result['message'] = ($result['message'] ?? '') . ' | 🔄 Emulator herstart';
            }
        }

        return $result;
    }

    public function performUpdate(array $check): array
    {
        return $this->jarService->performUpdate($check);
    }

    public function buildFromSource(bool $force = false): array
    {
        return $this->buildService->buildFromSource($force);
    }

    public function restartEmulator(): bool
    {
        $serviceName = $this->settings->getOrDefault('emulator_service_name', 'emulator');

        try {
            Log::info('[EmulatorUpdate] Restarting emulator service: ' . $serviceName);

            $result = Process::timeout(30)->run("systemctl restart {$serviceName} 2>&1");
            if ($result->successful()) {
                return true;
            }

            $result = Process::timeout(30)->run("service {$serviceName} restart 2>&1");

            return $result->successful();
        } catch (\Exception $e) {
            Log::error('[EmulatorUpdate] Failed to restart emulator', ['error' => $e->getMessage()]);

            return false;
        }
    }

    public function getBackupList(): array
    {
        return $this->backupService->getList();
    }

    public function restoreBackup(string $backupName): array
    {
        return $this->backupService->restore($backupName);
    }

    public function getInstalledVersion(): string
    {
        return $this->statusService->getInstalledVersion();
    }

    public function getInstalledJar(): ?string
    {
        return $this->statusService->getInstalledJar();
    }

    public function getInstalledJarInfo(): array
    {
        return $this->statusService->getInstalledJarInfo();
    }

    public function getLastSqlUpdate(): ?string
    {
        return setting('emulator_last_sql_update');
    }

    public function debugStatus(): array
    {
        return Cache::remember('emulator_debug_status', 120, function () {
            $installedDate = $this->settings->getOrDefault('emulator_jar_installed_date', null);
            $sourceCommit = $this->settings->getOrDefault('emulator_source_commit', null);
            $sourceDate = $this->settings->getOrDefault('emulator_source_date', null);
            $emulatorVersion = $this->settings->getOrDefault('emulator_version', null);
            $jarFiles = $this->statusService->getInstalledJarInfo();

            return [
                'github_url' => $this->settings->getOrDefault('emulator_github_url', ''),
                'github_repo' => $this->settings->getOrDefault('emulator_source_repo', ''),
                'github_branch' => $this->settings->getOrDefault('emulator_github_branch', 'main'),
                'source_repo' => $this->settings->getOrDefault('emulator_source_repo', ''),
                'source_branch' => $this->settings->getOrDefault('emulator_github_branch', 'main'),
                'installed_date' => $installedDate,
                'installed_date_formatted' => $installedDate ? date('Y-m-d H:i:s', (int) $installedDate) : null,
                'source_commit' => $sourceCommit,
                'source_date' => $sourceDate,
                'source_date_formatted' => $sourceDate ? date('Y-m-d H:i:s', (int) $sourceDate) : null,
                'emulator_version' => $emulatorVersion,
                'jar_files' => $jarFiles,
                'installed_branch' => $this->settings->getOrDefault('emulator_installed_branch', null),
            ];
        });
    }

    public function resetInstalledDate(): void
    {
        \App\Models\Miscellaneous\WebsiteSetting::where('key', 'emulator_jar_installed_date')->delete();
        \App\Models\Miscellaneous\WebsiteSetting::where('key', 'emulator_source_commit')->delete();
        \App\Models\Miscellaneous\WebsiteSetting::where('key', 'emulator_source_date')->delete();
    }

    public function clearAllLogs(): array
    {
        $cleared = [];
        $paths = [
            storage_path('logs') => 'Laravel Logs',
            storage_path('logs/emulator.log') => 'Emulator Log',
            '/tmp/emulator-update-*' => 'Emulator Update Temp',
            '/tmp/nitro-switch-*' => 'Nitro Switch Logs',
            '/tmp/nitro_*' => 'Nitro Temp',
            '/var/www/Emulator/logs' => 'Emulator Folder Logs',
        ];

        foreach ($paths as $path => $label) {
            try {
                if (str_contains($path, '*')) {
                    Process::timeout(10)->run("rm -f {$path} 2>/dev/null || true");
                    $cleared[] = $label;
                } elseif (is_dir($path)) {
                    Process::timeout(10)->run("find {$path} -name '*.log' -mtime +1 -delete 2>/dev/null || true");
                    $cleared[] = $label;
                } elseif (is_file($path)) {
                    @unlink($path);
                    $cleared[] = $label;
                }
            } catch (\Exception) {
            }
        }

        try {
            $laravelLog = storage_path('logs/laravel.log');
            if (is_file($laravelLog)) {
                file_put_contents($laravelLog, '');
                $cleared[] = 'laravel.log';
            }
        } catch (\Exception) {
        }

        Process::timeout(10)->run("find /tmp -name 'emulator_*' -mtime +1 -delete 2>/dev/null || true");
        Process::timeout(10)->run("find /tmp -name 'nitro_*' -mtime +1 -delete 2>/dev/null || true");
        Process::timeout(10)->run("find /tmp -name 'deploy_*' -mtime +1 -delete 2>/dev/null || true");

        return [
            'success' => true,
            'cleared' => $cleared,
            'message' => count($cleared) . ' log locaties geleegd',
        ];
    }

    public function repairEmulator(): array
    {
        $actions = [];
        $errors = [];

        Log::info('[EmulatorUpdate] Starting repair process');

        try {
            $status = $this->getStatus();

            if (! ($status['jar_exists'] ?? false)) {
                $actions[] = 'JAR bestand ontbreekt - downloaden...';
                $updateResult = $this->updateEmulator();
                if (! $updateResult['success']) {
                    $errors[] = 'Kon JAR niet herstellen: ' . ($updateResult['error'] ?? 'Onbekende fout');
                } else {
                    $actions[] = 'JAR bestand hersteld';
                }
            }

            if (! ($status['service_running'] ?? false)) {
                $actions[] = 'Emulator service niet actief - starten...';
                if ($this->restartEmulator()) {
                    $actions[] = 'Emulator service gestart';
                } else {
                    $errors[] = 'Kon emulator service niet starten';
                }
            }

            $sqlRepairResult = $this->sqlService->repair();
            if (! empty($sqlRepairResult['actions'])) {
                $actions = array_merge($actions, $sqlRepairResult['actions']);
            }
            if (! empty($sqlRepairResult['errors'])) {
                $errors = array_merge($errors, $sqlRepairResult['errors']);
            }

            if ($errors !== []) {
                return [
                    'success' => false,
                    'actions' => $actions,
                    'errors' => $errors,
                    'error' => implode('; ', $errors),
                ];
            }

            return [
                'success' => true,
                'actions' => $actions,
                'message' => count($actions) . ' acties uitgevoerd',
            ];
        } catch (\Exception $e) {
            Log::error('[EmulatorUpdate] Repair exception', ['error' => $e->getMessage()]);

            return [
                'success' => false,
                'actions' => $actions,
                'error' => $e->getMessage(),
            ];
        }
    }

    public function diagnoseSqlUpdates(): array
    {
        return $this->sqlService->diagnose();
    }

    public function diagnose(): array
    {
        $diagnosis = [
            'timestamp' => now()->toIso8601String(),
            'checks' => [],
            'issues' => [],
            'recommendations' => [],
        ];

        try {
            $status = $this->getStatus();

            $diagnosis['checks']['jar_exists'] = $status['jar_exists'] ?? false;
            $diagnosis['checks']['jar_files'] = $status['jar_files'] ?? [];
            $diagnosis['checks']['service_running'] = $status['service_running'] ?? false;
            $diagnosis['checks']['source_exists'] = $status['source_exists'] ?? false;
            $diagnosis['checks']['emulator_db_connected'] = $status['emulator_db_connected'] ?? false;
            $diagnosis['checks']['is_configured'] = $this->isConfigured();
            $diagnosis['checks']['update_available'] = $status['update_available'] ?? false;

            $sqlDiagnosis = $this->sqlService->diagnose();
            $diagnosis['checks']['sql_table_exists'] = $sqlDiagnosis['table_exists'] ?? false;
            $diagnosis['checks']['sql_updates_applied'] = $sqlDiagnosis['applied_count'] ?? 0;
            $diagnosis['checks']['sql_pending'] = $sqlDiagnosis['pending_count'] ?? 0;

            if (! ($status['jar_exists'] ?? false)) {
                $diagnosis['issues'][] = 'JAR bestand ontbreekt';
                $diagnosis['recommendations'][] = 'Voer emulator:update uit om de JAR te downloaden';
            }

            if (! ($status['service_running'] ?? false)) {
                $diagnosis['issues'][] = 'Emulator service draait niet';
                $diagnosis['recommendations'][] = 'Start de service met: sudo systemctl start ' . $this->settings->getOrDefault('emulator_service_name', 'emulator');
            }

            if (! ($status['emulator_db_connected'] ?? false)) {
                $diagnosis['issues'][] = 'Emulator database niet bereikbaar';
                $diagnosis['recommendations'][] = 'Controleer de database credentials in de settings';
            }

            if (! ($status['source_exists'] ?? false) && $this->sourceService->isSourceBuildAvailable()) {
                $diagnosis['issues'][] = 'Source code niet gevonden';
                $diagnosis['recommendations'][] = 'Voer emulator:update --rebuild uit om vanaf source te bouwen';
            }

            if (! ($sqlDiagnosis['table_exists'] ?? false)) {
                $diagnosis['issues'][] = 'SQL update tabel ontbreekt';
                $diagnosis['recommendations'][] = 'Reparatie zal de tabel aanmaken';
            }

            if (($sqlDiagnosis['pending_count'] ?? 0) > 0) {
                $diagnosis['issues'][] = $sqlDiagnosis['pending_count'] . ' SQL updates pending';
                $diagnosis['recommendations'][] = 'Voer reparatie uit om SQL updates toe te passen';
            }
        } catch (\Exception $e) {
            $diagnosis['error'] = $e->getMessage();
        }

        return $diagnosis;
    }
}