<?php

namespace App\Console\Commands;

use App\Services\IgdbAuthService;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Log;
use ZipArchive;

class FetchIgdbDumps extends Command
{
    protected $signature = 'igdb:fetch-dumps
                            {--type=games : Type of dump to fetch (games, genres, platforms)}
                            {--limit=1000 : Number of items to fetch per request}
                            {--offset=0 : Starting offset for pagination}
                            {--output=storage/dumps : Output directory for the dumps}';

    protected $description = 'Fetch data dumps from IGDB API';

    private const ENDPOINTS = [
        'games' => 'https://api.igdb.com/v4/games',
        'genres' => 'https://api.igdb.com/v4/genres',
        'platforms' => 'https://api.igdb.com/v4/platforms',
    ];

    private const FIELDS = [
        'games' => 'id,name,summary,cover.url,slug,genres,platforms,first_release_date,rating,rating_count,category,status,url,version_title,artworks.url,artworks.width,artworks.height,artworks.image_id,screenshots.url,screenshots.width,screenshots.height,screenshots.image_id,videos.name,videos.video_id,videos.url,videos.checksum,bundles.id,collections.id,dlcs.id,expanded_games.id,franchises.id,ports.id,remakes.id,similar_games.id',
        'genres' => 'id,name,slug',
        'platforms' => 'id,name,slug,abbreviation',
    ];

    public function handle(IgdbAuthService $authService): int
    {
        $type = $this->option('type');
        $limit = (int) $this->option('limit');
        $offset = (int) $this->option('offset');
        $outputDir = $this->option('output');

        if (!isset(self::ENDPOINTS[$type])) {
            $this->error("Invalid type: {$type}");
            return Command::FAILURE;
        }

        if (!is_dir($outputDir)) {
            if (!mkdir($outputDir, 0755, true)) {
                $this->error("Failed to create output directory: {$outputDir}");
                return Command::FAILURE;
            }
        }

        $this->info("Fetching {$type} dumps from IGDB API");
        $this->info("Output directory: {$outputDir}");

        try {
            $this->fetchDumps($type, $limit, $offset, $outputDir, $authService);
        } catch (\Exception $e) {
            $this->error("Error fetching dumps: {$e->getMessage()}");
            Log::error('Error fetching IGDB dumps', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            return Command::FAILURE;
        }

        $this->info('Dump fetching completed successfully');
        return Command::SUCCESS;
    }

    private function fetchDumps(string $type, int $limit, int $offset, string $outputDir, IgdbAuthService $authService): void
    {
        $endpoint = self::ENDPOINTS[$type];
        $fields = self::FIELDS[$type];
        $totalFetched = 0;
        $fileCount = 1;

        do {
            $this->info("Fetching batch {$fileCount} (offset: {$offset})");

            $accessToken = $authService->getAccessToken();

            $response = Http::withHeaders([
                'Client-ID' => config('services.igdb.credentials.client_id'),
                'Authorization' => 'Bearer ' . $accessToken,
            ])->post($endpoint, [
                'fields' => $fields,
                'limit' => $limit,
                'offset' => $offset,
                'where' => 'rating_count > 0',
            ]);

            if (!$response->successful()) {
                throw new \Exception("API request failed: " . $response->body());
            }

            $data = $response->json();
            $count = count($data);

            if ($count === 0) {
                break;
            }

            $filename = "{$type}_{$fileCount}.json";
            $filepath = "{$outputDir}/{$filename}";

            if (!file_put_contents($filepath, json_encode($data, JSON_PRETTY_PRINT))) {
                throw new \Exception("Failed to write to file: {$filepath}");
            }

            $this->info("Saved {$count} items to {$filename}");
            $totalFetched += $count;
            $offset += $limit;
            $fileCount++;

            // Sleep to avoid rate limiting
            sleep(1);
        } while ($count === $limit);

        $this->info("Total items fetched: {$totalFetched}");
    }
}