<?php

declare(strict_types=1);

/**
 * TheTVDB Bridge
 * Returns new episodes from TheTVDB series pages
 */
class TheTVDBBridge extends BridgeAbstract
{
    const NAME = 'TheTVDB Bridge';
    const URI = 'https://www.thetvdb.com/';
    const DESCRIPTION = 'Returns new episodes from TheTVDB series pages (English)';
    const MAINTAINER = 'Your Name';

    private $seriesTitle = '';

    const PARAMETERS = [
        [
            'series' => [
                'name' => 'Series Slug',
                'type' => 'text',
                'required' => true,
                'exampleValue' => 'hot-ones',
                'title' => 'Series slug from the URL (e.g., "hot-ones" from https://www.thetvdb.com/series/hot-ones)'
            ],
            'limit' => [
                'name' => 'Max Episodes',
                'type' => 'number',
                'required' => false,
                'defaultValue' => 20,
                'title' => 'Maximum number of episodes to return (default: 20)'
            ]
        ]
    ];

    public function collectData()
    {
        $series = $this->getInput('series');
        $limit = $this->getInput('limit') ?? 20;
        $url = self::URI . 'series/' . $series . '/allseasons/official';

        $html = getSimpleHTMLDOM($url);

        if (!$html) {
            throw new \Exception('Unable to load page: ' . $url);
        }

        // Extract series title for author field
        // Try to get series title from the page title
        $titleElement = $html->find('title', 0);
        if ($titleElement) {
            // Format: "Hot Ones - Aired Order - All Seasons - TheTVDB.com"
            $pageTitle = trim($titleElement->plaintext);
            // Take only the first part before " - "
            $parts = explode(' - ', $pageTitle);
            if (!empty($parts[0])) {
                $this->seriesTitle = trim($parts[0]);
            }
        }

        // Find all episode list items
        $episodes = $html->find('li.list-group-item');

        if (empty($episodes)) {
            throw new \Exception('No episodes found. Please check if the series slug is correct.');
        }

        // Reverse to get newest episodes first
        $episodes = array_reverse($episodes);

        $count = 0;

        foreach ($episodes as $episode) {
            if ($count >= $limit) {
                break;
            }

            // Skip if this is not an episode (some list items might be headers)
            $heading = $episode->find('h4.list-group-item-heading', 0);
            if (!$heading) {
                continue;
            }

            // Check if this is a special episode
            $isSpecial = strpos($episode->class, 'list-group-item-special') !== false;

            // Extract episode label (S28E08 or SPECIAL 0x202)
            $labelElement = $isSpecial
                ? $episode->find('small.episode-label', 0)
                : $episode->find('span.episode-label', 0);

            $episodeLabel = $labelElement ? trim($labelElement->plaintext) : '';

            // Convert SPECIAL format to S00E## format
            if ($isSpecial && preg_match('/SPECIAL\s+0x(\d+)/i', $episodeLabel, $matches)) {
                $episodeLabel = 'S00E' . str_pad($matches[1], 2, '0', STR_PAD_LEFT);
            }

            // Extract title and URL
            $titleLink = $episode->find('h4 a', 0);
            if (!$titleLink) {
                continue; // Skip if no title link found
            }

            $title = trim($titleLink->plaintext);
            $episodeUrl = self::URI . ltrim($titleLink->href, '/');

            // Extract air date
            $dateElement = $episode->find('ul.list-inline li', 0);
            $airDate = $dateElement ? trim($dateElement->plaintext) : '';

            // Extract network/platform
            $networkElement = $episode->find('ul.list-inline li', 1);
            $network = $networkElement ? trim($networkElement->plaintext) : '';

            // Extract description
            $descElement = $episode->find('.list-group-item-text p', 0);
            $description = $descElement ? trim($descElement->innertext) : '';

            // Extract thumbnail image
            $imgElement = $episode->find('.list-group-item-text img', 0);
            $thumbnail = '';
            if ($imgElement) {
                // Check for lazy-loaded images (data-src) first, then fallback to src
                $thumbnail = $imgElement->getAttribute('data-src') ?: $imgElement->src;

                // Make sure URL is absolute
                if ($thumbnail && !str_starts_with($thumbnail, 'http')) {
                    $thumbnail = 'https:' . $thumbnail;
                }
            }

            // Build content HTML
            $content = '';

            // Add thumbnail if available
            if ($thumbnail) {
                $content .= '<p><img src="' . htmlspecialchars($thumbnail) . '" style="max-width: 100%; height: auto;"></p>';
            }

            // Add description
            if ($description) {
                $content .= '<p>' . $description . '</p>';
            }

            // Parse timestamp from air date
            $timestamp = null;
            if ($airDate) {
                $parsedTime = strtotime($airDate);
                if ($parsedTime !== false) {
                    $timestamp = $parsedTime;
                }
            }

            // Create RSS item
            $item = [
                'uri' => $episodeUrl,
                'title' => $this->seriesTitle ? ($this->seriesTitle . ' ' . $episodeLabel . ' - ' . $title) : ($episodeLabel . ' - ' . $title),
                'author' => $this->seriesTitle,
                'content' => $content,
                'timestamp' => $timestamp,
                'uid' => $episodeUrl,
            ];

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

    public function getName()
    {
        if ($this->seriesTitle) {
            return $this->seriesTitle . ' - TheTVDB';
        }
        return parent::getName();
    }

    public function getIcon()
    {
        return 'https://www.google.com/s2/favicons?domain=thetvdb.com&sz=32';
    }
}