<?php

declare(strict_types=1);

class AppStoreUpdateBridge extends BridgeAbstract
{
    const MAINTAINER = 'Akamaru';
    const NAME = 'App Store Update Bridge';
    const URI = 'https://apps.apple.com/';
    const CACHE_TIMEOUT = 3600; // 1 hour
    const DESCRIPTION = 'Returns app updates from the Apple App Store using iTunes API';

    const PARAMETERS = [
        [
            'app_id' => [
                'name' => 'App ID',
                'type' => 'text',
                'required' => true,
                'title' => 'The numeric App ID from the App Store URL (e.g., 383457673)',
                'exampleValue' => '383457673'
            ],
            'country' => [
                'name' => 'Country Code',
                'type' => 'text',
                'required' => false,
                'defaultValue' => 'de',
                'title' => 'Two-letter country code (e.g., de, us, fr, jp)',
                'exampleValue' => 'de'
            ]
        ]
    ];

    private ?array $appData = null;

    private function getAppData(): ?array
    {
        if ($this->appData !== null) {
            return $this->appData;
        }

        $appId = $this->getInput('app_id');
        if (!$appId) {
            return null;
        }

        $country = $this->getInput('country') ?: 'de';

        $apiUrl = sprintf(
            'https://itunes.apple.com/lookup?id=%s&country=%s',
            urlencode($appId),
            urlencode($country)
        );

        $json = getContents($apiUrl);
        $data = json_decode($json, true);

        if (!$data || $data['resultCount'] === 0) {
            return null;
        }

        $this->appData = $data['results'][0];
        return $this->appData;
    }

    public function collectData()
    {
        $appData = $this->getAppData();

        if (!$appData) {
            returnServerError('Could not find app with the given ID');
        }

        $country = $this->getInput('country') ?: 'de';
        $appId = $this->getInput('app_id');

        // Parse release date
        $releaseDate = $appData['currentVersionReleaseDate'] ?? $appData['releaseDate'] ?? null;
        $timestamp = $releaseDate ? strtotime($releaseDate) : time();

        // If the date doesn't contain a year, use current year
        if ($timestamp === false) {
            $timestamp = time();
        }

        // Format release notes
        $releaseNotes = $appData['releaseNotes'] ?? 'No release notes available.';
        $content = nl2br(htmlspecialchars($releaseNotes));

        $item = [
            'uri' => sprintf('https://apps.apple.com/%s/app/id%s', $country, $appId),
            'title' => sprintf('%s %s', $appData['trackName'] ?? 'App', $appData['version'] ?? ''),
            'content' => $content,
            'timestamp' => $timestamp,
            'author' => $appData['artistName'] ?? null,
            'uid' => sprintf('%s-%s', $appId, $appData['version'] ?? 'unknown'),
            'enclosures' => [
                $appData['artworkUrl512'] ?? $appData['artworkUrl100'] ?? null
            ]
        ];

        $this->items[] = $item;
    }

    public function getName()
    {
        $appData = $this->getAppData();
        if ($appData && isset($appData['trackName'])) {
            return sprintf('%s - App Store Updates', $appData['trackName']);
        }
        return parent::getName();
    }

    public function getURI()
    {
        $appId = $this->getInput('app_id');
        $country = $this->getInput('country') ?: 'de';

        if ($appId) {
            return sprintf('https://apps.apple.com/%s/app/id%s', $country, $appId);
        }
        return parent::getURI();
    }

    public function getIcon()
    {
        $appData = $this->getAppData();
        if ($appData && isset($appData['artworkUrl100'])) {
            return $appData['artworkUrl100'];
        }
        return 'https://www.apple.com/favicon.ico';
    }

    public function detectParameters($url)
    {
        // Match URLs like:
        // https://apps.apple.com/de/app/plex-film-tv/id383457673
        // https://apps.apple.com/us/app/id383457673
        $pattern = '/apps\.apple\.com\/([a-z]{2})\/app\/(?:[^\/]+\/)?id(\d+)/i';

        if (preg_match($pattern, $url, $matches)) {
            return [
                'country' => $matches[1],
                'app_id' => $matches[2]
            ];
        }

        return null;
    }
}