const PageMarket = {
    _el: null,
    _marketToken: null,
    _tab: 'dashboards',

    init() {
        this._el = document.getElementById('page-market');
        this._marketToken = localStorage.getItem('turbosu-market-token');
    },

    async render() {
        this._el.innerHTML = this._template();
        this._bindEvents();
        this._updateUI();
        this._loadItems();
    },

    async _loadItems() {
        const grid = document.getElementById('market-grid');
        if (!grid) return;
        grid.innerHTML = '<div style="text-align:center;padding:40px;color:var(--text-tertiary);">加载中...</div>';

        if (this._tab === 'mine') {
            if (!this._marketToken) {
                grid.innerHTML = this._emptyHtml('请先登录');
                return;
            }
            return this._loadMine(grid);
        }

        const isScene = this._tab === 'scenes';
        const endpoint = isScene ? '/api/market/scenes' : '/api/market/dashboards';
        try {
            const res = await fetch(endpoint);
            const data = await res.json();
            const items = data.items || [];

            let localIds = [];
            try {
                const lr = await fetch('/api/dashboards?category=all');
                const ld = await lr.json();
                if (Array.isArray(ld)) localIds = ld.map(d => d.id);
                if (isScene) {
                    const sr = await fetch('/api/scenes');
                    const sl = await sr.json();
                    if (Array.isArray(sl)) localIds = localIds.concat(sl.map(s => s.id));
                }
            } catch(e) {}

            if (!items.length) { grid.innerHTML = this._emptyHtml(isScene ? '暂无场景' : '暂无仪表盘'); return; }
            grid.innerHTML = items.map(d => {
                const installed = localIds.includes(d.manifest_id || d.name) || localNames.includes(d.name);
                return this._cardHtml(d, isScene, installed);
            }).join('');
        } catch (e) { console.error(e); grid.innerHTML = '<div style="text-align:center;padding:40px;color:var(--danger);">加载失败: ' + (e.message||'未知') + '</div>'; }
    },

    async _loadMine(grid) {
        try {
            const res = await fetch('/api/market/mine?token=' + encodeURIComponent(this._marketToken));
            const data = await res.json();
            if (!data.dashboards?.length && !data.scenes?.length) {
                grid.innerHTML = this._emptyHtml('你还没有上传任何内容');
                return;
            }
            let html = '';
            if (data.dashboards?.length) {
                html += '<h3 style="margin-bottom:10px;font-size:16px;color:var(--text-secondary)">我的仪表盘</h3>' + data.dashboards.map(d => this._myCardHtml(d, 'dashboards')).join('');
            }
            if (data.scenes?.length) {
                html += '<h3 style="margin:20px 0 10px;font-size:16px;color:var(--text-secondary)">我的场景</h3>' + data.scenes.map(d => this._myCardHtml(d, 'scenes')).join('');
            }
            grid.innerHTML = html;
        } catch (e) { console.error(e); grid.innerHTML = '<div style="text-align:center;padding:40px;color:var(--danger);">加载失败: ' + (e.message||'未知') + '</div>'; }
    },

    _cardHtml(d, isScene, installed) {
        const icon = isScene ? '🎬' : (d.icon || '📦');
        const label = installed ? '已安装' : (isScene ? '安装场景' : '安装');
        const btnClass = isScene ? 'btn-m-install-scene' : 'btn-m-install';
        const uninstallBtn = installed ? `<button class="btn btn-sm btn-danger btn-m-uninstall" data-name="${d.name||d.id}" style="margin-top:4px;width:100%">卸载</button>` : '';
        return `<div class="glass-card theme-card">
            <div class="theme-card-preview">${icon}</div>
            <div class="theme-card-info">
                <div class="theme-card-name">${d.name||'Unnamed'}</div>
                <div class="theme-card-meta">
                    <span>${isScene ? (d.game_id||'') : (d.category||'')}</span><span>${isScene ? '' : 'v'+(d.version||'1.0')}</span>
                </div>
                <div class="theme-card-meta" style="margin-top:4px">
                    <span>${d.author||''}</span><span style="color:var(--text-tertiary)">${d.downloads||0} 次</span>
                </div>
                <button class="btn btn-sm btn-primary ${btnClass}" data-id="${d.id}" data-file="${d.file||''}" style="margin-top:8px;width:100%" ${installed?'disabled':''}>${label}</button>
                ${uninstallBtn}
            </div></div>`;
    },

    _myCardHtml(d, collection) {
        const pending = d.dashb_pending ? '<span class="badge" style="background:rgba(255,159,10,.15);color:#FF9F0A">待审核</span>' : '<span class="badge" style="background:rgba(52,199,89,.12);color:#34C759">已通过</span>';
        const created = d.created ? new Date(d.created).toLocaleString('zh-CN', {month:'numeric',day:'numeric',hour:'2-digit',minute:'2-digit'}) : '-';
        const updated = d.updated ? new Date(d.updated).toLocaleString('zh-CN', {month:'numeric',day:'numeric',hour:'2-digit',minute:'2-digit'}) : created;
        return `<div class="glass-card" style="padding:14px 16px;margin-bottom:8px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap">
            <div style="flex:1;min-width:200px">
                <div style="font-weight:600;font-size:14px">${d.name||'Unnamed'} <span style="color:var(--text-tertiary);font-weight:400;font-size:12px">v${d.version||'1.0'}</span></div>
                <div style="font-size:12px;color:var(--text-tertiary);margin-top:2px">
                    ${d.author||''} · ${d.downloads||0} 次下载 · ${pending}
                </div>
                <div style="font-size:11px;color:var(--text-tertiary);margin-top:2px">上传: ${created}${updated!==created?' · 更新: '+updated:''}</div>
            </div>
            <div style="display:flex;gap:6px;flex-shrink:0">
                <button class="btn btn-sm btn-secondary btn-my-update" data-id="${d.id}" data-coll="${collection}" data-file="${d.file||''}" data-type="${collection==='scenes'?'.tss':'.tsd'}">更新</button>
                <button class="btn btn-sm btn-danger btn-my-delete" data-id="${d.id}" data-coll="${collection}">删除</button>
            </div></div>`;
    },

    _bindEvents() {
        document.getElementById('btn-m-login')?.addEventListener('click', () => this._showLogin());
        document.getElementById('btn-m-upload')?.addEventListener('click', () => this._upload());
        document.getElementById('market-grid')?.addEventListener('click', async (e) => {
            const btnInstall = e.target.closest('.btn-m-install');
            const btnScene = e.target.closest('.btn-m-install-scene');
            const btnUpdate = e.target.closest('.btn-my-update');
            const btnDelete = e.target.closest('.btn-my-delete');

            if (e.target.closest('.btn-m-uninstall')) {
                const ubtn = e.target.closest('.btn-m-uninstall');
                const uname = ubtn.dataset.name||'';
                if (!confirm('确定卸载 "' + uname + '"？')) return;
                try {
                    const r = await fetch('/api/dashboards?category=all');
                    const list = (await r.json()) || [];
                    const dash = list.find(d => d.id === uname || d.name === uname);
                    if (dash) {
                        await fetch('/api/dashboards/' + dash.id, { method: 'DELETE' });
                        Toast.show('已卸载', 'success');
                        this._loadItems();
                    } else { Toast.show('未找到本地安装', 'error'); }
                } catch (e) { Toast.show('卸载失败', 'error'); }
                return;
            }

            if (btnUpdate) {
                const input = document.createElement('input'); input.type = 'file'; input.accept = btnUpdate.dataset.type;
                input.onchange = async (ev) => {
                    const file = ev.target.files[0]; if (!file) return;
                    const fd = new FormData(); fd.append('file', file); fd.append('token', this._marketToken);
                    const url = btnUpdate.dataset.coll === 'scenes' ? '/api/market/scenes/upload' : '/api/market/upload';
                    const res = await fetch(url, { method: 'POST', body: fd });
                    const data = await res.json();
                    Toast.show(data.error ? '更新失败: ' + data.error : '上传成功（新记录）', data.error ? 'error' : 'success');
                    if (!data.error) this._loadItems();
                }; input.click();
                return;
            }
            if (btnDelete) {
                if (!confirm('确定删除？')) return;
                try {
                    await fetch('/api/market/delete', { method: 'POST', headers: {'Content-Type':'application/json'}, body: JSON.stringify({id: btnDelete.dataset.id, collection: btnDelete.dataset.coll, token: this._marketToken}) });
                    Toast.show('已删除', 'info');
                    this._loadItems();
                } catch (e) { Toast.show('删除失败', 'error'); }
                return;
            }

            const id = (btnInstall || btnScene)?.dataset.id;
            const file = (btnInstall || btnScene)?.dataset.file;
            if (!id || !file) { Toast.show('安装失败：数据不完整', 'error'); return; }
            const isScene = !!btnScene;
            const url = isScene ? `/api/market/scenes/install?id=${encodeURIComponent(id)}&filename=${encodeURIComponent(file)}`
                               : `/api/market/install?id=${encodeURIComponent(id)}&filename=${encodeURIComponent(file)}`;
            try {
                const res = await fetch(url);
                const data = await res.json();
                if (data.ok) {
                    Toast.show('安装成功！请在仪表盘页面查看', 'success', 4000);
                    this._loadItems();
                } else {
                    Toast.show('安装失败: ' + (data.error||'请求异常'), 'error');
                }
            } catch (e) { Toast.show('安装失败：网络错误', 'error'); }
        });
        document.getElementById('tab-dashboards')?.addEventListener('click', () => {
            this._tab = 'dashboards';
            document.getElementById('tab-dashboards').style.cssText = 'border-radius:0;border-bottom:2px solid var(--accent);color:var(--accent);background:transparent;padding:8px 16px';
            document.getElementById('tab-scenes').style.cssText = 'border-radius:0;border-bottom:2px solid transparent;color:var(--text-secondary);background:transparent;padding:8px 16px';
            document.getElementById('tab-mine').style.cssText = 'border-radius:0;border-bottom:2px solid transparent;color:var(--text-secondary);background:transparent;padding:8px 16px';
            this._loadItems();
        });
        document.getElementById('tab-scenes')?.addEventListener('click', () => {
            this._tab = 'scenes';
            document.getElementById('tab-scenes').style.cssText = 'border-radius:0;border-bottom:2px solid var(--accent);color:var(--accent);background:transparent;padding:8px 16px';
            document.getElementById('tab-dashboards').style.cssText = 'border-radius:0;border-bottom:2px solid transparent;color:var(--text-secondary);background:transparent;padding:8px 16px';
            document.getElementById('tab-mine').style.cssText = 'border-radius:0;border-bottom:2px solid transparent;color:var(--text-secondary);background:transparent;padding:8px 16px';
            this._loadItems();
        });
        document.getElementById('tab-mine')?.addEventListener('click', () => {
            this._tab = 'mine';
            document.getElementById('tab-mine').style.cssText = 'border-radius:0;border-bottom:2px solid var(--accent);color:var(--accent);background:transparent;padding:8px 16px';
            document.getElementById('tab-dashboards').style.cssText = 'border-radius:0;border-bottom:2px solid transparent;color:var(--text-secondary);background:transparent;padding:8px 16px';
            document.getElementById('tab-scenes').style.cssText = 'border-radius:0;border-bottom:2px solid transparent;color:var(--text-secondary);background:transparent;padding:8px 16px';
            this._loadItems();
        });
    },

    _updateUI() {
        const loginBtn = document.getElementById('btn-m-login');
        const uploadBtn = document.getElementById('btn-m-upload');
        const statusEl = document.getElementById('m-status');
        if (!loginBtn || !uploadBtn) return;
        if (this._marketToken) {
            loginBtn.textContent = '已登录';
            loginBtn.className = 'btn btn-sm btn-secondary';
            uploadBtn.style.display = '';
            if (statusEl) statusEl.textContent = ' 已登录';
        } else {
            loginBtn.textContent = '登录';
            loginBtn.className = 'btn btn-sm btn-primary';
            uploadBtn.style.display = 'none';
            if (statusEl) statusEl.textContent = ' 未登录';
        }
    },

    _upload() {
        const input = document.createElement('input'); input.type = 'file'; input.accept = this._tab === 'scenes' ? '.tss' : '.tsd';
        const endpoint = this._tab === 'scenes' ? '/api/market/scenes/upload' : '/api/market/upload';
        input.onchange = async (e) => {
            const file = e.target.files[0]; if (!file) return;
            const fd = new FormData(); fd.append('file', file);
            fd.append('name', file.name.replace('.tsd',''));
            fd.append('category', 'community');
            fd.append('author', 'TurboSu User');
            fd.append('token', this._marketToken);
            try {
                const res = await fetch('/api/market/upload', { method: 'POST', body: fd });
                const data = await res.json();
                Toast.show(data.error ? '上传失败: ' + data.error : '上传成功', data.error ? 'error' : 'success');
                if (!data.error) this._loadItems();
            } catch (e) { Toast.show('上传失败', 'error'); }
        }; input.click();
    },

    _showLogin() {
        const overlay = document.createElement('div');
        overlay.className = 'modal-overlay';
        overlay.innerHTML = `<div class="modal" style="min-width:360px;max-width:400px">
            <h3>市场账户</h3>
            <div class="form-group"><label>邮箱</label><input id="ml-email" type="email" placeholder="your@email.com"></div>
            <div class="form-group"><label>用户名</label><input id="ml-name" type="text" placeholder="可选"></div>
            <div class="form-group"><label>密码</label><input id="ml-pass" type="password"></div>
            <div class="modal-actions">
                <button class="btn btn-secondary btn-sm" id="ml-logout" style="display:none;margin-right:auto">退出</button>
                <button class="btn btn-secondary btn-sm" id="ml-register">注册</button>
                <button class="btn btn-primary btn-sm" id="ml-login">登录</button>
            </div></div>`;
        document.body.appendChild(overlay);

        if (this._marketToken) {
            overlay.querySelector('#ml-login').style.display = 'none';
            overlay.querySelector('#ml-register').style.display = 'none';
            overlay.querySelector('#ml-logout').style.display = '';
            overlay.querySelector('#ml-logout').addEventListener('click', () => {
                this._marketToken = null;
                localStorage.removeItem('turbosu-market-token');
                overlay.remove();
                this._updateUI();
                Toast.show('已退出', 'info');
            });
        }

        overlay.addEventListener('click', (e) => { if (e.target === overlay) overlay.remove(); });
        overlay.querySelector('#ml-login')?.addEventListener('click', async () => {
            const email = document.getElementById('ml-email').value;
            const pass = document.getElementById('ml-pass').value;
            if (!email || !pass) { Toast.show('请输入邮箱和密码', 'error'); return; }
            const res = await fetch('/api/market/auth', { method: 'POST', headers: {'Content-Type':'application/json'}, body: JSON.stringify({email, password: pass}) });
            const data = await res.json();
            if (data.token) {
                this._marketToken = data.token;
                localStorage.setItem('turbosu-market-token', data.token);
                Toast.show('登录成功', 'success');
                overlay.remove();
                this._updateUI();
            } else { Toast.show(data.message || '登录失败', 'error'); }
        });
        overlay.querySelector('#ml-register')?.addEventListener('click', async () => {
            const email = document.getElementById('ml-email').value;
            const pass = document.getElementById('ml-pass').value;
            const name = document.getElementById('ml-name')?.value || '';
            if (!email || !pass) { Toast.show('请输入邮箱和密码', 'error'); return; }
            const res = await fetch('/api/market/register', { method: 'POST', headers: {'Content-Type':'application/json'}, body: JSON.stringify({email, password: pass, passwordConfirm: pass, name}) });
            const data = await res.json();
            Toast.show(data.error ? '注册失败' : '注册成功，请查收验证邮件（点击关闭）', data.error ? 'error' : 'success', data.error ? 3000 : 0);
            if (!data.error) overlay.remove();
        });
    },

    _emptyHtml(msg) {
        return `<div class="empty-state" style="grid-column:1/-1"><h4>${msg||'暂无'}</h4></div>`;
    },

    _template() {
        return `<div class="animated">
            <div style="display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px">
                <div>
                    <h2 style="font-size:24px;font-weight:700">仪表盘市场</h2>
                    <p style="color:var(--text-secondary);font-size:14px;margin-top:4px">浏览并安装社区分享的仪表盘和场景 <span id="m-status" style="color:var(--text-tertiary)"> 未登录</span></p>
                </div>
                <div style="display:flex;gap:8px">
                    <button id="btn-m-upload" class="btn btn-sm btn-secondary" style="display:none">发布仪表盘</button>
                    <button id="btn-m-login" class="btn btn-sm btn-primary">登录</button>
                </div>
            </div>
            <div style="display:flex;gap:0;margin-bottom:16px;border-bottom:1px solid var(--border-subtle)">
                <button id="tab-dashboards" class="btn btn-sm active" style="border-radius:0;border-bottom:2px solid var(--accent);color:var(--accent);background:transparent;padding:8px 16px">仪表盘</button>
                <button id="tab-scenes" class="btn btn-sm" style="border-radius:0;border-bottom:2px solid transparent;color:var(--text-secondary);background:transparent;padding:8px 16px">场景</button>
                <button id="tab-mine" class="btn btn-sm" style="border-radius:0;border-bottom:2px solid transparent;color:var(--text-secondary);background:transparent;padding:8px 16px">我的</button>
            </div>
            <div id="market-grid" class="theme-grid"></div>
        </div>`;
    }
};

window.PageMarket = PageMarket;