/**
 * Main initialization and event handlers
 */

// Initialize on DOM load
document.addEventListener('DOMContentLoaded', () => {
    initializeForms();
    loadProviders();
    loadDownloads();
    setInterval(loadDownloads, 1000);

    // Load home content (recommendations & releases)
    loadHomeContent();
});

/**
 * Initialize form event listeners
 */
function initializeForms() {
    // Search form
    document.getElementById('searchInput').addEventListener('keypress', (e) => {
        if (e.key === 'Enter') {
            handleSearch();
        }
    });

    // Direct download form
    document.getElementById('downloadForm').addEventListener('submit', handleDirectDownload);
}

/**
 * Load providers dynamically
 */
async function loadProviders() {
    try {
        const data = await getProvidersInfo();

        // Update anime tabs
        const animeTabsContainer = document.querySelector('.tabs');
        const existingAnimeTabs = animeTabsContainer.querySelectorAll('.tab[data-tab-type="anime"]');
        existingAnimeTabs.forEach(tab => tab.remove());

        // Add anime provider tabs
        Object.entries(data.anime_providers).forEach(([id, provider]) => {
            // Check if tab doesn't exist
            if (!document.querySelector(`.tab[data-provider="${id}"]`)) {
                const button = document.createElement('button');
                button.className = 'tab';
                button.setAttribute('data-tab-type', 'anime');
                button.setAttribute('data-provider', id);
                button.innerHTML = `${provider.icon} ${provider.name}`;
                button.onclick = () => switchTab(`anime-${id}`);
                animeTabsContainer.appendChild(button);

                // Create corresponding tab content
                const tabContent = document.createElement('div');
                tabContent.id = `tab-anime-${id}`;
                tabContent.className = 'tab-content';
                tabContent.innerHTML = createAnimeTabContent(id, provider);
                document.querySelector('.container').insertBefore(
                    tabContent,
                    document.getElementById('downloadsList')
                );
            }
        });

        // Add series provider tabs
        const existingSeriesTabs = animeTabsContainer.querySelectorAll('.tab[data-tab-type="series"]');
        existingSeriesTabs.forEach(tab => tab.remove());

        Object.entries(data.series_providers || {}).forEach(([id, provider]) => {
            // Check if tab doesn't exist
            if (!document.querySelector(`.tab[data-provider="${id}"]`)) {
                const button = document.createElement('button');
                button.className = 'tab';
                button.setAttribute('data-tab-type', 'series');
                button.setAttribute('data-provider', id);
                button.innerHTML = `${provider.icon} ${provider.name}`;
                button.onclick = () => switchTab(`series-${id}`);
                animeTabsContainer.appendChild(button);

                // Create corresponding tab content
                const tabContent = document.createElement('div');
                tabContent.id = `tab-series-${id}`;
                tabContent.className = 'tab-content';
                tabContent.innerHTML = createSeriesTabContent(id, provider);
                document.querySelector('.container').insertBefore(
                    tabContent,
                    document.getElementById('downloadsList')
                );
            }
        });

        // Update supported hosts badges
        const hostsContainer = document.querySelector('.supported-hosts');
        hostsContainer.innerHTML = '';

        Object.values(data.file_hosts).forEach(host => {
            const badge = document.createElement('span');
            badge.className = 'host-badge';
            badge.textContent = `${host.icon} ${host.name}`;
            hostsContainer.appendChild(badge);
        });

    } catch (error) {
        console.error('Error loading providers:', error);
    }
}

/**
 * Create anime provider tab content
 */
function createAnimeTabContent(providerId, provider) {
    return `
        <div class="url-form">
            <div class="anime-input-group">
                <input
                    type="text"
                    id="${providerId}UrlInput"
                    placeholder="URL de l'anime (ex: ${provider.url_pattern})"
                >
                <button type="button" class="btn-primary" onclick="handleLoadProviderEpisodes('${providerId}')">
                    <svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"></path>
                    </svg>
                    Charger
                </button>
            </div>

            <div id="${providerId}EpisodeSelector" class="anime-select-group" style="display:none;">
                <select id="${providerId}EpisodeSelect">
                    <option value="">Sélectionner un épisode</option>
                </select>
                <button type="button" class="btn-primary" onclick="handleDownloadProviderEpisode('${providerId}')">
                    <svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4"></path>
                    </svg>
                    Télécharger
                </button>
            </div>
        </div>
    `;
}

/**
 * Create series provider tab content
 */
function createSeriesTabContent(providerId, provider) {
    return `
        <div class="url-form">
            <div class="anime-input-group">
                <input
                    type="text"
                    id="${providerId}UrlInput"
                    placeholder="URL de la série (ex: ${provider.url_pattern})"
                >
                <button type="button" class="btn-primary" onclick="handleLoadProviderEpisodes('${providerId}')">
                    <svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"></path>
                    </svg>
                    Charger
                </button>
            </div>

            <div id="${providerId}EpisodeSelector" class="anime-select-group" style="display:none;">
                <select id="${providerId}EpisodeSelect">
                    <option value="">Sélectionner un épisode</option>
                </select>
                <button type="button" class="btn-primary" onclick="handleDownloadProviderEpisode('${providerId}')">
                    <svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4"></path>
                    </svg>
                    Télécharger
                </button>
            </div>
        </div>
    `;
}

/**
 * Handle load provider episodes
 */
async function handleLoadProviderEpisodes(providerId) {
    const animeUrl = document.getElementById(`${providerId}UrlInput`).value;
    if (!animeUrl) {
        alert('Veuillez entrer une URL d\'anime');
        return;
    }

    try {
        const data = await loadEpisodes(animeUrl, null);

        if (data.episodes && data.episodes.length > 0) {
            const select = document.getElementById(`${providerId}EpisodeSelect`);
            select.innerHTML = '<option value="">Sélectionner un épisode</option>';

            data.episodes.forEach(ep => {
                const option = document.createElement('option');
                option.value = ep.url;
                option.textContent = `Épisode ${ep.episode}`;
                select.appendChild(option);
            });

            document.getElementById(`${providerId}EpisodeSelector`).style.display = 'flex';
        } else {
            alert('Aucun épisode trouvé');
        }
    } catch (error) {
        console.error('Error loading episodes:', error);
        alert('Erreur lors du chargement des épisodes');
    }
}

/**
 * Handle download provider episode
 */
async function handleDownloadProviderEpisode(providerId) {
    const episodeUrl = document.getElementById(`${providerId}EpisodeSelect`).value;
    if (!episodeUrl) {
        alert('Veuillez sélectionner un épisode');
        return;
    }

    try {
        await downloadEpisode(episodeUrl);
        document.getElementById(`${providerId}EpisodeSelect`).value = '';
        loadDownloads();
    } catch (error) {
        console.error('Download error:', error);
        alert('Erreur lors du téléchargement');
    }
}

/**
 * Switch between tabs
 */
function switchTab(tabName) {
    // Hide all tabs
    document.querySelectorAll('.tab-content').forEach(tab => {
        tab.classList.remove('active');
    });
    document.querySelectorAll('.tab').forEach(btn => {
        btn.classList.remove('active');
    });

    // Show selected tab
    const tabElement = document.getElementById(`tab-${tabName}`);
    if (tabElement) {
        tabElement.classList.add('active');
    }

    // Find and activate the button
    const buttons = document.querySelectorAll('.tab');
    buttons.forEach(btn => {
        const tabType = btn.getAttribute('data-tab-type');

        if (tabType === 'home' && tabName === 'home') {
            btn.classList.add('active');
        } else if (tabType === 'search' && tabName === 'search') {
            btn.classList.add('active');
        } else if (tabType === 'direct' && tabName === 'direct') {
            btn.classList.add('active');
        } else if (tabType === 'anime' && btn.getAttribute('data-provider') === tabName.replace('anime-', '')) {
            btn.classList.add('active');
        } else if (tabType === 'series' && btn.getAttribute('data-provider') === tabName.replace('series-', '')) {
            btn.classList.add('active');
        }
    });

    // Load home content when switching to home tab
    if (tabName === 'home') {
        // Content is already loaded on init, but you can reload if needed
        if (typeof loadHomeContent === 'function' && !document.getElementById('recommendationsList').hasChildNodes()) {
            loadHomeContent();
        }
    }
}