{% extends "layout.html" %}

{% block content %}
<!-- Sort Options -->
<div class="yt-sort-container">
    <!-- Combined Filter Group -->
    <div class="yt-filter-group">
        <button class="yt-sort-btn" data-sort="day" onclick="switchSort('day', this)">Today</button>
        <button class="yt-sort-btn" data-sort="week" onclick="switchSort('week', this)">This Week</button>
        <button class="yt-sort-btn active" data-sort="month" onclick="switchSort('month', this)">This Month</button>
        <button class="yt-sort-btn" data-sort="year" onclick="switchSort('year', this)">This Year</button>
        <div class="yt-divider-vertical"></div>
        <button class="yt-region-btn active" data-region="vietnam" onclick="switchRegion('vietnam', this)">🇻🇳
            VN</button>
        <button class="yt-region-btn" data-region="global" onclick="switchRegion('global', this)">🌍 Global</button>
    </div>
</div>

<!-- ... (Categories kept same) ... -->

<!-- CSS Update -->
<style>
    /* ... existing styles ... */

    .yt-sort-container {
        display: flex;
        align-items: center;
        overflow-x: auto;
        padding: 12px 0;
        border-bottom: 1px solid var(--yt-border);
        margin-bottom: 8px;
        scrollbar-width: none;
    }

    .yt-sort-container::-webkit-scrollbar {
        display: none;
    }

    .yt-filter-group {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: nowrap;
    }

    .yt-divider-vertical {
        width: 1px;
        height: 20px;
        background: var(--yt-border);
        margin: 0 4px;
    }

    /* Mobile Enhancements */
    @media (max-width: 768px) {

        /* Mobile List View Transition */
        .yt-video-grid {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .yt-video-card {
            display: flex;
            flex-direction: row;
            align-items: flex-start;
            gap: 12px;
            height: auto;
        }

        .yt-thumbnail-container {
            width: 160px;
            /* Base width for list view thumbnail */
            min-width: 140px;
            aspect-ratio: 16/9;
            flex-shrink: 0;
            border-radius: 8px;
            /* Slightly tighter radius */
        }

        .yt-video-info {
            padding: 2px 0 0 0;
            /* Remove top padding */
        }

        .yt-video-details {
            padding: 0;
            flex-direction: column;
            gap: 4px;
        }

        /* Show avatar/channel info again but styled for list view */
        .yt-channel-avatar {
            display: none;
            /* Keep avatar hidden to save space or move to meta */
        }

        .yt-profile-pic-mobile {
            display: none;
            /* handled below */
        }

        .yt-video-meta {
            padding: 0;
        }

        .yt-video-title {
            font-size: 14px;
            line-height: 1.3;
            max-height: 2.6em;
            /* 2 lines */
            margin-bottom: 4px;
        }

        .yt-channel-name {
            display: block;
            /* Show channel name again */
            font-size: 12px;
            color: var(--yt-text-secondary);
        }

        .yt-video-stats {
            display: block;
            /* Show views */
            font-size: 12px;
        }

        /* Sort container adjustments */
        .yt-sort-container {
            padding-right: 16px;
        }

        .yt-sort-btn,
        .yt-region-btn {
            font-size: 13px;
            padding: 6px 12px;
            background: var(--yt-bg-secondary);
            border-radius: 8px;
            /* More like chips */
            border: none;
        }

        .yt-sort-btn.active,
        .yt-region-btn.active {
            background: var(--yt-text-primary);
            color: var(--yt-bg-primary);
        }
    }
</style>

<!-- Category Pills -->
<div class="yt-categories">
    <button class="yt-category-pill" data-category="tech" onclick="switchCategory('tech', this)">AI & Tech</button>
    <button class="yt-category-pill active" data-category="all" onclick="switchCategory('all', this)">All</button>
    <button class="yt-category-pill" data-category="shorts" onclick="switchCategory('shorts', this)">Shorts</button>
    <button class="yt-category-pill" data-category="music" onclick="switchCategory('music', this)">Music</button>
    <button class="yt-category-pill" data-category="gaming" onclick="switchCategory('gaming', this)">Gaming</button>
    <button class="yt-category-pill" data-category="news" onclick="switchCategory('news', this)">News</button>
    <button class="yt-category-pill" data-category="trending"
        onclick="switchCategory('trending', this)">Trending</button>
    <button class="yt-category-pill" data-category="sports" onclick="switchCategory('sports', this)">Sports</button>
    <button class="yt-category-pill" data-category="podcasts"
        onclick="switchCategory('podcasts', this)">Podcasts</button>
    <button class="yt-category-pill" data-category="live" onclick="switchCategory('live', this)">Live</button>
</div>

<!-- Shorts Section -->
<div id="shortsSection" class="yt-section">
    <div class="yt-section-header">
        <h2><i class="fas fa-bolt"></i> Shorts</h2>
    </div>
    <div class="yt-shorts-container">
        <button class="yt-shorts-arrow yt-shorts-left" onclick="scrollShorts('left')">
            <i class="fas fa-chevron-left"></i>
        </button>
        <div id="shortsGrid" class="yt-shorts-grid">
            <!-- Shorts loaded here -->
        </div>
        <button class="yt-shorts-arrow yt-shorts-right" onclick="scrollShorts('right')">
            <i class="fas fa-chevron-right"></i>
        </button>
    </div>
</div>

<!-- Videos Section -->
<div id="videosSection" class="yt-section">
    <div class="yt-section-header">
        <h2><i class="fas fa-play-circle"></i> Videos</h2>
    </div>
    <div id="resultsArea" class="yt-video-grid">
        <div id="initialLoading" class="yt-loader" style="grid-column: 1/-1;">
            <div class="yt-spinner">
                <div class="yt-spinner-ring"></div>
                <div class="yt-spinner-ring"></div>
                <div class="yt-spinner-ring"></div>
                <div class="yt-spinner-glow"></div>
            </div>
            <p>Loading videos...</p>
        </div>
    </div>
</div>

<!-- Pagination -->
<div id="paginationArea" class="yt-pagination">
    <button class="yt-page-btn yt-page-prev" onclick="goToPage(currentPage - 1)" disabled>
        <i class="fas fa-chevron-left"></i>
    </button>
    <div class="yt-page-numbers" id="pageNumbers">
    </div>
    <button class="yt-page-btn yt-page-next" onclick="goToPage(currentPage + 1)">
        <i class="fas fa-chevron-right"></i>
    </button>
</div>

<style>
    .yt-sort-container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
        padding: 12px 0;
        border-bottom: 1px solid var(--yt-border);
        margin-bottom: 8px;
    }

    .yt-sort-group {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }

    .yt-sort-label {
        font-size: 14px;
        color: var(--yt-text-secondary);
        margin-right: 4px;
    }

    .yt-sort-btn,
    .yt-region-btn {
        padding: 6px 12px;
        background: transparent;
        border: 1px solid var(--yt-border);
        border-radius: 18px;
        font-size: 13px;
        color: var(--yt-text-primary);
        cursor: pointer;
        transition: all 0.2s;
    }

    .yt-sort-btn:hover,
    .yt-region-btn:hover {
        background: var(--yt-bg-secondary);
    }

    .yt-sort-btn.active {
        background: var(--yt-text-primary);
        color: var(--yt-bg-primary);
        border-color: var(--yt-text-primary);
    }

    .yt-region-btn.active {
        background: var(--yt-accent-red);
        color: white;
        border-color: var(--yt-accent-red);
    }

    /* Sections */
    .yt-section {
        margin-bottom: 32px;
    }

    .yt-section-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 16px;
        padding: 8px 0;
    }

    .yt-section-header h2 {
        font-size: 20px;
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .yt-section-header h2 i {
        color: var(--yt-accent-red);
    }

    .yt-see-all {
        color: var(--yt-accent-blue);
        font-size: 14px;
        font-weight: 500;
    }

    .yt-see-all:hover {
        text-decoration: underline;
    }

    /* Shorts Container with Arrows */
    .yt-shorts-container {
        position: relative;
        display: flex;
        align-items: center;
    }

    .yt-shorts-arrow {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: var(--yt-bg-primary);
        border: 1px solid var(--yt-border);
        color: var(--yt-text-primary);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        z-index: 10;
        transition: all 0.2s;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .yt-shorts-arrow:hover {
        background: var(--yt-bg-secondary);
        transform: translateY(-50%) scale(1.1);
    }

    .yt-shorts-left {
        left: -20px;
    }

    .yt-shorts-right {
        right: -20px;
    }

    /* Shorts Grid (Horizontal Scroll) */
    .yt-shorts-grid {
        display: flex;
        gap: 12px;
        overflow-x: auto;
        padding: 8px 0;
        scroll-behavior: smooth;
        scrollbar-width: none;
        flex: 1;
    }

    .yt-shorts-grid::-webkit-scrollbar {
        display: none;
    }

    .yt-short-card {
        flex-shrink: 0;
        width: 180px;
        cursor: pointer;
        transition: transform 0.2s;
    }

    .yt-short-card:hover {
        transform: scale(1.02);
    }

    .yt-short-thumb {
        width: 180px;
        height: 320px;
        border-radius: 12px;
        object-fit: cover;
        background: var(--yt-bg-secondary);
    }

    .yt-short-title {
        font-size: 14px;
        font-weight: 500;
        margin-top: 8px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .yt-short-views {
        font-size: 12px;
        color: var(--yt-text-secondary);
        margin-top: 4px;
    }

    /* Pagination */
    .yt-pagination {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 8px;
        margin: 32px 0;
    }

    .yt-page-btn {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: var(--yt-bg-secondary);
        color: var(--yt-text-primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        transition: all 0.2s;
    }

    .yt-page-btn:hover:not(:disabled) {
        background: var(--yt-bg-hover);
    }

    .yt-page-btn:disabled {
        opacity: 0.5;
        cursor: not-allowed;
    }

    .yt-page-numbers {
        display: flex;
        gap: 4px;
    }

    .yt-page-num {
        min-width: 40px;
        height: 40px;
        border-radius: 20px;
        background: var(--yt-bg-secondary);
        color: var(--yt-text-primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        font-weight: 500;
        padding: 0 8px;
        transition: all 0.2s;
    }

    .yt-page-num:hover {
        background: var(--yt-bg-hover);
    }

    .yt-page-num.active {
        background: var(--yt-accent-red);
        color: white;
    }

    @media (max-width: 768px) {
        .yt-sort-container {
            /* flex-direction: column;  Old: stacked */
            flex-direction: row;
            /* New: horizontal scroll */
            align-items: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            /* Hide scrollbar Firefox */
            -ms-overflow-style: none;
            /* IE/Edge */
            padding-right: 16px;
            /* Right padding for scroll */
        }

        .yt-sort-container::-webkit-scrollbar {
            display: none;
            /* Hide scrollbar Chrome/Safari */
        }

        .yt-sort-label {
            display: none;
            /* Hide labels on mobile */
        }

        .yt-sort-btn,
        .yt-region-btn {
            padding: 6px 10px;
            font-size: 12px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* Force 2 columns on mobile */
        .yt-video-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }

        .yt-short-card {
            width: 140px;
        }

        .yt-short-thumb {
            width: 140px;
            height: 250px;
        }

        .yt-shorts-arrow {
            display: none;
        }
    }
</style>

<script>
    let currentSort = 'month';
    let currentRegion = 'vietnam';
    let totalPages = 10;

    // Scroll shorts left/right
    function scrollShorts(direction) {
        const grid = document.getElementById('shortsGrid');
        const scrollAmount = 400; // pixels to scroll

        if (direction === 'left') {
            grid.scrollBy({ left: -scrollAmount, behavior: 'smooth' });
        } else {
            grid.scrollBy({ left: scrollAmount, behavior: 'smooth' });
        }
    }

    // Generate page numbers
    function renderPagination() {
        const container = document.getElementById('pageNumbers');
        container.innerHTML = '';

        const startPage = Math.max(1, currentPage - 4);
        const endPage = Math.min(totalPages, startPage + 9);

        for (let i = startPage; i <= endPage; i++) {
            const btn = document.createElement('button');
            btn.className = `yt-page-num ${i === currentPage ? 'active' : ''}`;
            btn.innerText = i;
            btn.onclick = () => goToPage(i);
            container.appendChild(btn);
        }

        document.querySelector('.yt-page-prev').disabled = currentPage <= 1;
        document.querySelector('.yt-page-next').disabled = currentPage >= totalPages;
    }

    function goToPage(page) {
        if (page < 1 || page > totalPages) return;
        currentPage = page;
        window.currentPage = page;
        renderPagination();
        loadTrending(true);
        loadShorts(); // Also update shorts when page changes
        window.scrollTo({ top: 0, behavior: 'smooth' });
    }

    function switchSort(sort, btn) {
        document.querySelectorAll('.yt-sort-btn').forEach(b => b.classList.remove('active'));
        btn.classList.add('active');
        currentSort = sort;
        window.currentSort = sort;
        currentPage = 1;
        loadTrending(true);
        loadShorts();
    }

    function switchRegion(region, btn) {
        document.querySelectorAll('.yt-region-btn').forEach(b => b.classList.remove('active'));
        btn.classList.add('active');
        currentRegion = region;
        window.currentRegion = region;
        currentPage = 1;
        loadTrending(true);
        loadShorts();
    }

    window.currentSort = 'month';
    window.currentRegion = 'vietnam';
    window.currentPage = 1;

    // Load shorts with current category, pagination, sort, region
    async function loadShorts() {
        const shortsGrid = document.getElementById('shortsGrid');
        shortsGrid.innerHTML = `<div class="yt-loader"><div class="yt-spinner">
                <div class="yt-spinner-ring"></div>
                <div class="yt-spinner-ring"></div>
                <div class="yt-spinner-ring"></div>
                <div class="yt-spinner-glow"></div>
            </div></div>`;

        try {
            const page = window.currentPage || 1;
            // Get shorts related to current category
            const category = window.currentCategory || currentCategory || 'general';
            // For shorts, we combine category with 'shorts' keyword
            const shortsCategory = category === 'all' || category === 'general' ? 'shorts' : category;

            const response = await fetch(`/api/trending?category=${shortsCategory}&page=${page}&sort=${currentSort}&region=${currentRegion}&shorts=1`);
            const data = await response.json();

            shortsGrid.innerHTML = '';
            if (data && data.length > 0) {
                data.slice(0, 10).forEach(video => {
                    const card = document.createElement('div');
                    card.className = 'yt-short-card';
                    card.innerHTML = `
                    <img src="${video.thumbnail}" class="yt-short-thumb" loading="lazy">
                    <p class="yt-short-title">${escapeHtml(video.title)}</p>
                    <p class="yt-short-views">${formatViews(video.view_count)} views</p>
                `;
                    card.onclick = () => window.location.href = `/watch?v=${video.id}`;
                    shortsGrid.appendChild(card);
                });
            } else {
                shortsGrid.innerHTML = '<p style="color:var(--yt-text-secondary);padding:20px;">No shorts found</p>';
            }
        } catch (e) {
            console.error('Error loading shorts:', e);
            shortsGrid.innerHTML = '<p style="color:var(--yt-text-secondary);padding:20px;">Could not load shorts</p>';
        }
    }

    function escapeHtml(text) {
        if (!text) return '';
        const div = document.createElement('div');
        div.textContent = text;
        return div.innerHTML;
    }

    function formatViews(views) {
        if (!views) return '0';
        const num = parseInt(views);
        if (num >= 1000000) return (num / 1000000).toFixed(1) + 'M';
        if (num >= 1000) return (num / 1000).toFixed(0) + 'K';
        return num.toLocaleString();
    }

    // Init
    document.addEventListener('DOMContentLoaded', () => {
        loadShorts();
        renderPagination();

        const urlParams = new URLSearchParams(window.location.search);
        const category = urlParams.get('category');
        if (category) {
            const pill = document.querySelector(`.yt-category-pill[data-category="${category}"]`);
            if (pill) pill.click();
        }
    });
</script>
{% endblock %}