<?php

namespace App\Console\Commands;

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

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());
        }
    }

}