// Showcase platform JavaScript

const MEDIA_LABELS = {
    music: '🎵 音乐', mtv: '🎬 MTV', short_video: '📱 短视频',
    long_video: '🎞️ 长视频', ktv: '🎤 KTV'
};
const MEDIA_ICONS = {
    music: '🎵', mtv: '🎬', short_video: '📱', long_video: '🎞️', ktv: '🎤'
};

let currentFilter = '';

async function loadFeed(mediaType) {
    currentFilter = mediaType || '';
    const container = document.getElementById('showcase_feed_grid');
    if (!container) return;

    const url = `${MODULE_PREFIX}/api/showcase_feed.dspy?media_type=${currentFilter}&page=1&page_size=30`;
    try {
        const resp = await fetch(url);
        const result = await resp.json();
        if (result.status !== 'ok' || !result.data) {
            container.innerHTML = '<div style="padding:40px;text-align:center;color:#999">暂无作品</div>';
            return;
        }
        renderFeedCards(container, result.data);
    } catch (e) {
        container.innerHTML = '<div style="padding:40px;text-align:center;color:#c00">加载失败</div>';
    }
}

function renderFeedCards(container, posts) {
    if (!posts.length) {
        container.innerHTML = '<div style="padding:40px;text-align:center;color:#999">暂无作品</div>';
        return;
    }
    container.innerHTML = posts.map(p => `
        <div class="showcase-card" onclick="openDetail('${p.id}')">
            <div class="thumb">${p.thumbnail_url ? `<img src="${p.thumbnail_url}" style="width:100%;height:100%;object-fit:cover">` : MEDIA_ICONS[p.media_type] || '📄'}</div>
            <div class="info">
                <span class="badge badge-${p.media_type}">${MEDIA_LABELS[p.media_type] || p.media_type}</span>
                <div class="title">${escHtml(p.title)}</div>
                <div class="meta">
                    <span>❤ ${p.like_count || 0}</span>
                    <span>💬 ${p.comment_count || 0}</span>
                    <span>👁 ${p.view_count || 0}</span>
                    ${parseFloat(p.price) > 0 ? `<span>💰 ¥${p.price}</span>` : ''}
                </div>
            </div>
        </div>
    `).join('');
}

function openDetail(postId) {
    window.location.href = `${MODULE_PREFIX}/detail.ui?post_id=${postId}`;
}

function escHtml(s) {
    if (!s) return '';
    return s.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
}

// Register filterByType function
if (typeof registerFunction !== 'undefined') {
    registerFunction('filterByType', function(opts) {
        loadFeed(opts.type);
    });
}

// Auto-load on page ready
document.addEventListener('DOMContentLoaded', function() {
    if (document.getElementById('showcase_feed_grid')) {
        loadFeed('');
    }
});