<?php

namespace App\Services;

use App\Models\Game;
use GuzzleHttp\Client;
use Exception;

class SteamSyncService extends BaseSyncService
{
    private Client $httpClient;
    private ?string $apiKey;
    private string $steamId;
    private int $processedCount = 0;
    private int $newCount = 0;
    private int $updatedCount = 0;

    public function __construct(\PDO $pdo, array $source, ?int $existingSyncLogId = null)
    {
        parent::__construct($pdo, $source, $existingSyncLogId);
        $this->httpClient = new Client([
            'timeout' => 30,
            'headers' => [
                'User-Agent' => 'MediaCollector/1.0'
            ]
        ]);
        $this->apiKey = $source['api_key'];

        // Steam ID can be configured in source config or use a default test account
        $this->steamId = $source['config']['steam_id'] ?? '76561198000000000'; // Default test Steam ID
    }

    protected function executeSync(string $syncType): void
    {
        if (empty($this->apiKey)) {
            throw new Exception('Steam API key not configured');
        }

        $this->logProgress('Starting Steam library sync...');

        // Get Steam user game library
        $games = $this->getSteamLibrary();

        foreach ($games as $gameData) {
            $this->syncGame($gameData);
            $this->processedCount++;
        }

        $this->logProgress("Processed {$this->processedCount} Steam games");
    }

    private function getSteamLibrary(): array
    {
        try {
            // Steam Web API: GetOwnedGames
            $response = $this->httpClient->get('https://api.steampowered.com/IPlayerService/GetOwnedGames/v1/', [
                'query' => [
                    'key' => $this->apiKey,
                    'steamid' => $this->steamId,
                    'format' => 'json',
                    'include_appinfo' => 'true',
                    'include_played_free_games' => 'true'
                ]
            ]);

            $data = json_decode($response->getBody(), true);

            if (!isset($data['response']['games'])) {
                throw new Exception('No games found in Steam library');
            }

            return $data['response']['games'];
        } catch (Exception $e) {
            throw new Exception('Failed to fetch Steam library: ' . $e->getMessage());
        }
    }

    private function syncGame(array $gameData): void
    {
        $gameModel = new Game($this->pdo);

        // Check if game already exists
        $existingGame = $gameModel->findAll([
            'steam_app_id' => $gameData['appid'],
            'source_id' => $this->source['id']
        ]);

        // Get additional game details from Steam API
        $gameDetails = $this->getGameDetails($gameData['appid']);

        $gameData = [
            'title' => $gameData['name'],
            'game_key' => Game::generateGameKey($gameData['name'], 'steam'),
            'steam_app_id' => $gameData['appid'],
            'playtime_minutes' => intval($gameData['playtime_forever']),
            'platform' => 'PC',
            'source_id' => $this->source['id'],
            'last_played_at' => isset($gameData['rt_time_last_played']) && $gameData['rt_time_last_played'] > 0
                ? date('Y-m-d H:i:s', $gameData['rt_time_last_played'])
                : null,
            'metadata' => json_encode([
                'appid' => $gameData['appid'],
                'playtime_windows' => $gameData['playtime_windows_forever'] ?? 0,
                'playtime_mac' => $gameData['playtime_mac_forever'] ?? 0,
                'playtime_linux' => $gameData['playtime_linux_forever'] ?? 0,
                'img_icon_url' => $gameDetails['img_icon_url'] ?? null,
                'img_logo_url' => $gameDetails['img_logo_url'] ?? null,
                'has_community_visible_stats' => $gameDetails['has_community_visible_stats'] ?? false
            ])
        ];

        if (empty($existingGame)) {
            $gameModel->create($gameData);
            $this->newCount++;
        } else {
            $gameModel->update($existingGame[0]['id'], $gameData);
            $this->updatedCount++;
        }
    }

    private function getGameDetails(int $appId): array
    {
        try {
            // Steam Web API: GetAppDetails
            $response = $this->httpClient->get('https://store.steampowered.com/api/appdetails/', [
                'query' => [
                    'appids' => $appId,
                    'cc' => 'US',
                    'l' => 'english'
                ]
            ]);

            $data = json_decode($response->getBody(), true);
            $appData = $data[$appId] ?? [];

            if (!$appData['success']) {
                return [];
            }

            return $appData['data'] ?? [];
        } catch (Exception $e) {
            // Return empty array if details can't be fetched
            return [];
        }
    }

    protected function getProcessedCount(): int
    {
        return $this->processedCount;
    }

    protected function getNewCount(): int
    {
        return $this->newCount;
    }

    protected function getUpdatedCount(): int
    {
        return $this->updatedCount;
    }

    protected function getDeletedCount(): int
    {
        return 0; // Steam doesn't provide deletion info in this context
    }
}