<?php

namespace App\Console\Commands;

use App\Services\ShoppingUserService;
use App\User;
use Exception;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;

class SyncShoppingUserData extends Command
{
    // aufruf: php artisan shopping:sync-user-data --force --start=4
    protected $signature = 'shopping:sync-user-data {user_id?} {--force} {--start=1}';

    protected $description = 'Synchronisiere Shopping User Daten für einen oder alle User';

    public function handle()
    {
        $userId = $this->argument('user_id');
        $force = $this->option('force');
        $startId = $this->option('start');

        try {
            if ($userId) {
                $this->syncSingleUser($userId);
            } else {
                $this->syncAllUsers($force, $startId);
            }
        } catch (Exception $e) {
            $this->error('Ein Fehler ist aufgetreten: '.$e->getMessage());
            Log::error('Shopping User Sync Fehler: ', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
            ]);

            return 1;
        }

        return 0;
    }

    private function syncAllUsers($force, $startId)
    {
        $this->info("Starte Synchronisierung für alle User ab ID: {$startId}...");
        $count = 0;
        $errors = [];

        // Aktiviere SQL Query Logging für Debugging
        DB::enableQueryLog();

        User::where('id', '>=', $startId)
            ->orderBy('id')
            ->chunk(10, function ($users) use (&$count, &$errors, $force) {
                foreach ($users as $user) {
                    try {
                        $this->info("\nVerarbeite User ID: {$user->id} ({$user->email})");

                        $this->syncUser($user);
                        $count++;

                        $this->info("✓ User ID {$user->id} erfolgreich synchronisiert");

                    } catch (Exception $e) {
                        $errorMessage = "Fehler bei User ID {$user->id} ({$user->email}): ".$e->getMessage();
                        $errors[] = $errorMessage;
                        $this->error($errorMessage);

                        // Log die letzten SQL Queries
                        Log::error('Letzte SQL Queries:', [
                            'queries' => DB::getQueryLog(),
                        ]);

                        if (! $force) {
                            throw $e;
                        }
                    }
                }
            });

        $this->newLine();
        $this->info('Synchronisierung abgeschlossen!');
        $this->info("Gesamt synchronisierte User: {$count}");

        if (count($errors) > 0) {
            $this->warn('Es gab '.count($errors).' Fehler während der Synchronisierung:');
            foreach ($errors as $error) {
                $this->warn('- '.$error);
            }
        }
    }

    private function syncUser(User $user)
    {
        try {
            $this->output->write('  Setze Faker Mail... ');
            ShoppingUserService::setFakerMail($user);
            $this->info('✓');

            $this->output->write('  Synchronisiere Numbers... ');
            ShoppingUserService::syncNumbersByEmail($user);
            $this->info('✓');

            $this->output->write('  Synchronisiere Orders... ');
            ShoppingUserService::syncOrdersByEmail($user);
            $this->info('✓');

        } catch (Exception $e) {
            throw new Exception($e->getMessage()."\n".$e->getTraceAsString());
        }
    }

    private function syncSingleUser($userId)
    {
        $user = User::find($userId);
        if (! $user) {
            throw new Exception("User ID {$userId} nicht gefunden");
        }

        $this->info("Starte Synchronisierung für User ID {$userId}...");

        try {
            $this->syncUser($user);
            $this->info('✓ Synchronisierung erfolgreich abgeschlossen');
        } catch (Exception $e) {
            throw new Exception("Fehler bei User ID {$userId}: ".$e->getMessage());
        }
    }
}