tanjingyu
/
data_nexus


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Data Nexus - 数据中台</title>
    <meta name="description" content="Data Nexus 轻量级数据中台，浏览和下载项目数据文件">
    <style>
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --bg-primary: #0f172a;
            --bg-surface: #1e293b;
            --bg-hover: #334155;
            --bg-card: rgba(30, 41, 59, 0.7);
            --border: rgba(148, 163, 184, 0.1);
            --border-hover: rgba(59, 130, 246, 0.4);
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --accent: #3b82f6;
            --accent-light: #60a5fa;
            --accent-glow: rgba(59, 130, 246, 0.15);
            --green: #22c55e;
            --orange: #f59e0b;
            --purple: #a78bfa;
            --radius: 10px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            min-height: 100vh;
            line-height: 1.6;
        }

        /* Header */
        .header {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(30, 41, 59, 0.9));
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(20px);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 16px 24px;
        }

        .header-top {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }

        .logo-icon {
            width: 32px;
            height: 32px;
            color: var(--accent);
        }

        .header-top h1 {
            font-size: 20px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-light), var(--purple));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            font-size: 14px;
        }

        .breadcrumb-item {
            color: var(--text-muted);
            cursor: pointer;
            padding: 2px 8px;
            border-radius: 4px;
            transition: all 0.2s;
        }

        .breadcrumb-item:hover {
            color: var(--accent-light);
            background: var(--accent-glow);
        }

        .breadcrumb-item.active {
            color: var(--text-primary);
            cursor: default;
        }

        .breadcrumb-item.active:hover {
            background: none;
            color: var(--text-primary);
        }

        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 12px;
        }

        .breadcrumb-sep svg {
            width: 14px;
            height: 14px;
            vertical-align: middle;
        }

        /* Main content */
        .main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 24px;
        }

        /* Item list */
        .item-list {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            backdrop-filter: blur(10px);
        }

        .item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 20px;
            border-bottom: 1px solid var(--border);
            cursor: pointer;
            transition: all 0.2s ease;
            animation: fadeSlideIn 0.3s ease forwards;
            opacity: 0;
        }

        .item:last-child {
            border-bottom: none;
        }

        .item:hover {
            background: var(--bg-hover);
            border-color: var(--border-hover);
        }

        .item-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
        }

        .item-icon svg {
            width: 20px;
            height: 20px;
        }

        .item-icon.project {
            color: var(--accent-light);
        }

        .item-icon.stage {
            color: var(--orange);
        }

        .item-icon.commit {
            color: var(--green);
        }

        .item-icon.file {
            color: var(--text-muted);
        }

        .item-icon.folder {
            color: var(--orange);
        }

        .item-body {
            flex: 1;
            min-width: 0;
        }

        .item-name {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .item-desc {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .item-meta {
            flex-shrink: 0;
            text-align: right;
            font-size: 12px;
            color: var(--text-muted);
        }

        .item-meta .meta-main {
            color: var(--text-secondary);
            font-size: 13px;
        }

        .item-arrow {
            flex-shrink: 0;
            color: var(--text-muted);
            transition: transform 0.2s;
        }

        .item:hover .item-arrow {
            color: var(--accent-light);
            transform: translateX(3px);
        }

        .item-arrow svg {
            width: 16px;
            height: 16px;
        }

        /* Download button */
        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 6px;
            border: none;
            background: var(--accent);
            color: white;
            font-size: 12px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            text-decoration: none;
        }

        .btn-download:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
        }

        .btn-download svg {
            width: 14px;
            height: 14px;
        }

        /* File tree */
        .file-tree {
            padding: 8px 0;
        }

        .tree-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 20px;
            border-bottom: 1px solid var(--border);
            transition: background 0.15s;
            animation: fadeSlideIn 0.3s ease forwards;
            opacity: 0;
        }

        .tree-item:last-child {
            border-bottom: none;
        }

        .tree-item:hover {
            background: var(--bg-hover);
        }

        .tree-item .indent {
            flex-shrink: 0;
        }

        .tree-item .item-icon {
            flex-shrink: 0;
        }

        .tree-item .item-body {
            flex: 1;
            min-width: 0;
        }

        .tree-item .item-name {
            font-size: 14px;
        }

        .tree-folder-toggle {
            cursor: pointer;
            color: var(--text-muted);
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            transition: transform 0.2s;
        }

        .tree-folder-toggle.expanded {
            transform: rotate(90deg);
        }

        .tree-children {
            display: none;
        }

        .tree-children.expanded {
            display: block;
        }

        /* Status badges */
        .badge {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 600;
        }

        .badge-stage {
            background: rgba(245, 158, 11, 0.15);
            color: var(--orange);
            border: 1px solid rgba(245, 158, 11, 0.25);
        }

        .badge-count {
            background: rgba(59, 130, 246, 0.15);
            color: var(--accent-light);
            border: 1px solid rgba(59, 130, 246, 0.2);
        }

        /* Loading & Empty states */
        .state-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 80px 20px;
            color: var(--text-muted);
        }

        .state-container svg {
            width: 48px;
            height: 48px;
            margin-bottom: 16px;
            opacity: 0.5;
        }

        .state-container p {
            font-size: 15px;
        }

        .spinner {
            width: 32px;
            height: 32px;
            border: 3px solid var(--border);
            border-top-color: var(--accent);
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
            margin-bottom: 16px;
        }

        /* Section header */
        .section-header {
            padding: 12px 20px;
            background: rgba(15, 23, 42, 0.5);
            border-bottom: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* Animations */
        @keyframes fadeSlideIn {
            from {
                opacity: 0;
                transform: translateY(8px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        /* Responsive */
        @media (max-width: 640px) {

            .header-inner,
            .main {
                padding-left: 16px;
                padding-right: 16px;
            }

            .item {
                padding: 12px 14px;
                gap: 10px;
            }

            .item-meta {
                display: none;
            }
        }
    </style>
</head>

<body>
    <header class="header">
        <div class="header-inner">
            <div class="header-top">
                <svg class="logo-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                    <path
                        d="M21 16V8a2 2 0 00-1-1.73l-7-4a2 2 0 00-2 0l-7 4A2 2 0 003 8v8a2 2 0 001 1.73l7 4a2 2 0 002 0l7-4A2 2 0 0021 16z" />
                    <polyline points="3.27 6.96 12 12.01 20.73 6.96" />
                    <line x1="12" y1="22.08" x2="12" y2="12" />
                </svg>
                <h1>Data Nexus</h1>
            </div>
            <nav id="breadcrumb" class="breadcrumb"></nav>
        </div>
    </header>
    <main class="main">
        <div id="content"></div>
    </main>

    <script>
        // ============ SVG Icons ============
        const SVG = {
            project: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M21 16V8a2 2 0 00-1-1.73l-7-4a2 2 0 00-2 0l-7 4A2 2 0 003 8v8a2 2 0 001 1.73l7 4a2 2 0 002 0l7-4A2 2 0 0021 16z"/><polyline points="3.27 6.96 12 12.01 20.73 6.96"/><line x1="12" y1="22.08" x2="12" y2="12"/></svg>',
            folder: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M22 19a2 2 0 01-2 2H4a2 2 0 01-2-2V5a2 2 0 012-2h5l2 3h9a2 2 0 012 2z"/></svg>',
            commit: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="4"/><line x1="1.05" y1="12" x2="7" y2="12"/><line x1="17.01" y1="12" x2="22.96" y2="12"/></svg>',
            file: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z"/><polyline points="14 2 14 8 20 8"/></svg>',
            download: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M21 15v4a2 2 0 01-2 2H5a2 2 0 01-2-2v-4"/><polyline points="7 10 12 15 17 10"/><line x1="12" y1="15" x2="12" y2="3"/></svg>',
            chevron: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="9 18 15 12 9 6"/></svg>',
            home: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M3 9l9-7 9 7v11a2 2 0 01-2 2H5a2 2 0 01-2-2z"/><polyline points="9 22 9 12 15 12 15 22"/></svg>',
            empty: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5"><path d="M13 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V9z"/><path d="M13 2v7h7"/></svg>',
        };

        const chevronSep = `<span class="breadcrumb-sep">${SVG.chevron}</span>`;

        // ============ State ============
        let state = {
            project: null,
            stage: null,
            version: null,
            versionsCache: [],  // all versions for current project
        };

        const $content = document.getElementById('content');
        const $breadcrumb = document.getElementById('breadcrumb');

        // ============ Utils ============
        function formatSize(bytes) {
            if (!bytes && bytes !== 0) return '-';
            const u = ['B', 'KB', 'MB', 'GB', 'TB'];
            let i = 0, s = bytes;
            while (s >= 1024 && i < u.length - 1) { s /= 1024; i++; }
            return s.toFixed(i > 0 ? 1 : 0) + ' ' + u[i];
        }

        function formatTime(iso) {
            if (!iso) return '';
            const d = new Date(iso);
            const pad = n => String(n).padStart(2, '0');
            return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${pad(d.getHours())}:${pad(d.getMinutes())}`;
        }

        function relativeTime(iso) {
            if (!iso) return '';
            const diff = Date.now() - new Date(iso).getTime();
            const m = Math.floor(diff / 60000);
            if (m < 1) return '刚刚';
            if (m < 60) return m + ' 分钟前';
            const h = Math.floor(m / 60);
            if (h < 24) return h + ' 小时前';
            const d = Math.floor(h / 24);
            if (d < 30) return d + ' 天前';
            return formatTime(iso);
        }

        function staggerDelay(i) {
            return `animation-delay: ${i * 0.04}s;`;
        }

        async function api(path) {
            const res = await fetch(path);
            if (!res.ok) throw new Error(`API Error: ${res.status}`);
            return res.json();
        }

        // ============ Rendering ============
        function renderLoading() {
            $content.innerHTML = `<div class="item-list"><div class="state-container"><div class="spinner"></div><p>加载中...</p></div></div>`;
        }

        function renderEmpty(msg) {
            $content.innerHTML = `<div class="item-list"><div class="state-container">${SVG.empty}<p>${msg}</p></div></div>`;
        }

        function renderError(msg) {
            $content.innerHTML = `<div class="item-list"><div class="state-container"><p style="color:#ef4444;">⚠ ${msg}</p><p style="margin-top:8px;font-size:13px;cursor:pointer;color:var(--accent);" onclick="loadProjects()">点击重试</p></div></div>`;
        }

        // ============ Breadcrumb ============
        function updateBreadcrumb() {
            let html = `<span class="breadcrumb-item ${!state.project ? 'active' : ''}" onclick="loadProjects()">所有项目</span>`;
            if (state.project) {
                html += chevronSep + `<span class="breadcrumb-item ${!state.stage ? 'active' : ''}" onclick="selectProject('${state.project.id}')">${state.project.project_name}</span>`;
            }
            if (state.stage) {
                html += chevronSep + `<span class="breadcrumb-item ${!state.version ? 'active' : ''}" onclick="selectStage('${state.stage}')">${state.stage}</span>`;
            }
            if (state.version) {
                html += chevronSep + `<span class="breadcrumb-item active">${state.version.commit_id.substring(0, 8)}</span>`;
            }
            $breadcrumb.innerHTML = html;
        }

        // ============ Level 1: Projects ============
        async function loadProjects() {
            state = { project: null, stage: null, version: null, versionsCache: [] };
            updateBreadcrumb();
            renderLoading();
            try {
                const projects = await api('/projects?limit=500');
                if (!projects.length) return renderEmpty('暂无项目');
                let html = '<div class="item-list"><div class="section-header">项目列表</div>';
                projects.forEach((p, i) => {
                    html += `<div class="item" style="${staggerDelay(i)}" onclick="selectProject('${p.id}')">
            <div class="item-icon project">${SVG.project}</div>
            <div class="item-body">
              <div class="item-name">${esc(p.project_name)}</div>
              ${p.description ? `<div class="item-desc">${esc(p.description)}</div>` : ''}
            </div>
            <div class="item-meta"><div class="meta-main">${relativeTime(p.created_at)}</div><div>${formatTime(p.created_at)}</div></div>
            <div class="item-arrow">${SVG.chevron}</div>
          </div>`;
                });
                html += '</div>';
                $content.innerHTML = html;
            } catch (e) { renderError('加载项目失败: ' + e.message); }
        }

        // ============ Level 2: Stages ============
        async function selectProject(projectId) {
            renderLoading();
            try {
                const projects = await api('/projects?limit=500');
                state.project = projects.find(p => p.id === projectId);
                state.stage = null; state.version = null;
                const versions = await api(`/projects/${projectId}/versions?limit=5000`);
                state.versionsCache = versions;
                updateBreadcrumb();

                // Extract unique stages with stats
                const stageMap = {};
                versions.forEach(v => {
                    if (!stageMap[v.stage]) stageMap[v.stage] = { count: 0, latest: v.created_at };
                    stageMap[v.stage].count++;
                    if (new Date(v.created_at) > new Date(stageMap[v.stage].latest))
                        stageMap[v.stage].latest = v.created_at;
                });
                const stages = Object.entries(stageMap).sort((a, b) => a[0].localeCompare(b[0]));

                if (!stages.length) return renderEmpty('该项目暂无数据');
                let html = '<div class="item-list"><div class="section-header">数据阶段</div>';
                stages.forEach(([name, info], i) => {
                    html += `<div class="item" style="${staggerDelay(i)}" onclick="selectStage('${esc(name)}')">
            <div class="item-icon stage">${SVG.folder}</div>
            <div class="item-body">
              <div class="item-name">${esc(name)}</div>
              <div class="item-desc"><span class="badge badge-count">${info.count} 次提交</span></div>
            </div>
            <div class="item-meta"><div class="meta-main">最近更新</div><div>${relativeTime(info.latest)}</div></div>
            <div class="item-arrow">${SVG.chevron}</div>
          </div>`;
                });
                html += '</div>';
                $content.innerHTML = html;
            } catch (e) { renderError('加载阶段失败: ' + e.message); }
        }

        // ============ Level 3: Commits/Versions ============
        function selectStage(stageName) {
            state.stage = stageName; state.version = null;
            updateBreadcrumb();

            const versions = state.versionsCache
                .filter(v => v.stage === stageName)
                .sort((a, b) => new Date(b.created_at) - new Date(a.created_at));

            if (!versions.length) return renderEmpty('该阶段暂无提交');
            let html = '<div class="item-list"><div class="section-header">提交记录</div>';
            versions.forEach((v, i) => {
                const shortId = v.commit_id.substring(0, 8);
                html += `<div class="item" style="${staggerDelay(i)}" onclick="selectVersion('${v.id}')">
          <div class="item-icon commit">${SVG.commit}</div>
          <div class="item-body">
            <div class="item-name"><code style="font-size:13px;color:var(--accent-light);background:var(--accent-glow);padding:2px 6px;border-radius:4px;">${shortId}</code></div>
            <div class="item-desc">${v.author ? '作者: ' + esc(v.author) : ''}</div>
          </div>
          <div class="item-meta"><div class="meta-main">${relativeTime(v.created_at)}</div><div>${formatTime(v.created_at)}</div></div>
          <div class="item-arrow">${SVG.chevron}</div>
        </div>`;
            });
            html += '</div>';
            $content.innerHTML = html;
        }

        // ============ Level 4: Files ============
        async function selectVersion(versionId) {
            renderLoading();
            try {
                const v = state.versionsCache.find(x => x.id === versionId);
                if (v) state.version = v;
                updateBreadcrumb();

                const tree = await api(`/versions/${versionId}/files`);
                if (!tree.length) return renderEmpty('该提交暂无文件');

                let html = '<div class="item-list"><div class="section-header">文件列表</div><div class="file-tree">';
                html += renderTree(tree, 0);
                html += '</div></div>';
                $content.innerHTML = html;
            } catch (e) { renderError('加载文件失败: ' + e.message); }
        }

        function renderTree(nodes, depth) {
            let html = '';
            let idx = 0;
            nodes.forEach(node => {
                const indent = `<span class="indent" style="width:${depth * 24}px;display:inline-block;"></span>`;
                if (node.type === 'folder') {
                    const folderId = 'f_' + Math.random().toString(36).substr(2, 8);
                    html += `<div class="tree-item" style="${staggerDelay(idx++)}" onclick="toggleFolder('${folderId}', this)">
            ${indent}
            <span class="tree-folder-toggle" id="toggle_${folderId}">${SVG.chevron}</span>
            <div class="item-icon folder">${SVG.folder}</div>
            <div class="item-body"><div class="item-name">${esc(node.name)}</div></div>
          </div>
          <div class="tree-children" id="${folderId}">
            ${renderTree(node.children || [], depth + 1)}
          </div>`;
                } else {
                    html += `<div class="tree-item" style="${staggerDelay(idx++)}">
            ${indent}
            <span style="width:16px;display:inline-block;"></span>
            <div class="item-icon file">${SVG.file}</div>
            <div class="item-body">
              <div class="item-name">${esc(node.name)}</div>
              <div class="item-desc">${formatSize(node.size)}${node.file_type ? ' · ' + node.file_type : ''}</div>
            </div>
            <a class="btn-download" href="/files/${node.id}/content" download="${esc(node.name)}" onclick="event.stopPropagation();">
              ${SVG.download} 下载
            </a>
          </div>`;
                }
            });
            return html;
        }

        function toggleFolder(id, el) {
            const children = document.getElementById(id);
            const toggle = document.getElementById('toggle_' + id);
            if (children) children.classList.toggle('expanded');
            if (toggle) toggle.classList.toggle('expanded');
        }

        function esc(s) {
            if (!s) return '';
            const d = document.createElement('div');
            d.textContent = s;
            return d.innerHTML;
        }

        // ============ Init ============
        loadProjects();
    </script>
</body>

</html>