{% extends "base.html" %}
{% block title %}Artifact Lineage - ICDEV Dashboard{% endblock %}
{% block content %}
<div class="container">
  <h1>Artifact Lineage</h1>
  <p style="color:#666;">Phase 56 &mdash; Unified DAG visualization joining digital thread, provenance, audit trail, and SBOM (D348)</p>

  <!-- Controls -->
  <div style="margin:1rem 0;display:flex;gap:0.5rem;align-items:center;">
    <input id="lin-project-id" type="text" placeholder="Project ID" style="padding:0.4rem 0.8rem;border:1px solid #ccc;border-radius:4px;width:240px;" />
    <button onclick="loadLineage()" style="padding:0.4rem 1rem;background:#1976d2;color:#fff;border:none;border-radius:4px;cursor:pointer;">Load Lineage</button>
  </div>

  <!-- Stat Grid -->
  <div class="stat-grid" style="display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;margin:1rem 0;">
    <div class="stat-card" style="padding:1rem;border:1px solid #ddd;border-radius:8px;text-align:center;">
      <div class="stat-value" id="lin-nodes" style="font-size:2rem;font-weight:bold;">--</div>
      <div class="stat-label" style="color:#999;">Nodes</div>
    </div>
    <div class="stat-card" style="padding:1rem;border:1px solid #ddd;border-radius:8px;text-align:center;">
      <div class="stat-value" id="lin-edges" style="font-size:2rem;font-weight:bold;">--</div>
      <div class="stat-label" style="color:#999;">Edges</div>
    </div>
    <div class="stat-card" style="padding:1rem;border:1px solid #ddd;border-radius:8px;text-align:center;">
      <div class="stat-value" id="lin-sources" style="font-size:2rem;font-weight:bold;">--</div>
      <div class="stat-label" style="color:#999;">Sources</div>
    </div>
  </div>

  <!-- SVG DAG Visualization -->
  <h2 style="margin-top:1.5rem;">Lineage Graph</h2>
  <div id="lin-svg-container" style="border:1px solid #ddd;border-radius:8px;padding:1rem;min-height:300px;background:#fafafa;overflow:auto;">
    <svg id="lin-svg" role="img" aria-label="Artifact lineage DAG" width="100%" height="400" style="display:block;">
      <text x="50%" y="50%" text-anchor="middle" fill="#999" font-size="14">Load a project to see the lineage graph</text>
    </svg>
  </div>

  <!-- Node Table -->
  <h2 style="margin-top:1.5rem;">Artifact Inventory</h2>
  <div class="table-container">
    <table id="lin-table" style="width:100%;border-collapse:collapse;">
      <thead>
        <tr style="border-bottom:2px solid #ddd;">
          <th style="text-align:left;padding:0.5rem;">ID</th>
          <th style="text-align:left;padding:0.5rem;">Type</th>
          <th style="text-align:left;padding:0.5rem;">Label</th>
          <th style="text-align:left;padding:0.5rem;">Source</th>
        </tr>
      </thead>
      <tbody id="lin-tbody">
        <tr><td colspan="4" style="padding:1rem;text-align:center;color:#999;">No data loaded</td></tr>
      </tbody>
    </table>
  </div>
</div>

<script>
var SOURCE_COLORS = {
  digital_thread: '#1976d2',
  provenance: '#7b1fa2',
  audit_trail: '#388e3c',
  sbom: '#f57c00'
};

function loadLineage() {
  var pid = document.getElementById('lin-project-id').value.trim();
  if (!pid) { alert('Enter a Project ID'); return; }
  fetch('/api/lineage/graph?project_id=' + encodeURIComponent(pid))
  .then(function(r) { return r.json(); })
  .then(function(data) {
    document.getElementById('lin-nodes').textContent = data.summary.total_nodes;
    document.getElementById('lin-edges').textContent = data.summary.total_edges;
    document.getElementById('lin-sources').textContent = data.summary.sources.length;
    renderSVG(data.nodes, data.edges);
    renderTable(data.nodes);
  });
}

function renderSVG(nodes, edges) {
  var svg = document.getElementById('lin-svg');
  var w = svg.clientWidth || 800;
  var h = Math.max(400, nodes.length * 30);
  svg.setAttribute('height', h);
  svg.innerHTML = '';
  if (nodes.length === 0) {
    svg.innerHTML = '<text x="50%" y="50%" text-anchor="middle" fill="#999" font-size="14">No artifacts found for this project</text>';
    return;
  }
  // Simple force-free layout: arrange by source in columns
  var srcOrder = ['digital_thread', 'provenance', 'audit_trail', 'sbom'];
  var colWidth = w / (srcOrder.length + 1);
  var positions = {};
  var counts = {};
  for (var i = 0; i < nodes.length; i++) {
    var n = nodes[i];
    var col = srcOrder.indexOf(n.source);
    if (col === -1) col = srcOrder.length;
    if (!counts[col]) counts[col] = 0;
    counts[col]++;
    var x = (col + 1) * colWidth;
    var y = counts[col] * 35;
    positions[n.id] = {x: x, y: y};
    var color = SOURCE_COLORS[n.source] || '#666';
    svg.innerHTML += '<circle cx="'+x+'" cy="'+y+'" r="6" fill="'+color+'" />';
    svg.innerHTML += '<text x="'+(x+10)+'" y="'+(y+4)+'" font-size="11" fill="#333">'+escHtml(n.label.substring(0,40))+'</text>';
  }
  // Draw edges
  var edgeHtml = '';
  for (var j = 0; j < edges.length; j++) {
    var e = edges[j];
    var s = positions[e.source];
    var t = positions[e.target];
    if (s && t) {
      edgeHtml += '<line x1="'+s.x+'" y1="'+s.y+'" x2="'+t.x+'" y2="'+t.y+'" stroke="#ccc" stroke-width="1" />';
    }
  }
  svg.innerHTML = edgeHtml + svg.innerHTML; // edges behind nodes
  svg.setAttribute('height', Math.max(h, (Math.max.apply(null, Object.values(counts)) + 1) * 35 + 20));
}

function renderTable(nodes) {
  var tbody = document.getElementById('lin-tbody');
  if (nodes.length === 0) {
    tbody.innerHTML = '<tr><td colspan="4" style="padding:1rem;text-align:center;color:#999;">No artifacts found</td></tr>';
    return;
  }
  tbody.innerHTML = '';
  for (var i = 0; i < nodes.length; i++) {
    var n = nodes[i];
    var color = SOURCE_COLORS[n.source] || '#666';
    tbody.innerHTML += '<tr style="border-bottom:1px solid #eee;">'
      + '<td style="padding:0.5rem;font-family:monospace;font-size:0.85rem;">' + escHtml(n.id) + '</td>'
      + '<td style="padding:0.5rem;">' + escHtml(n.type) + '</td>'
      + '<td style="padding:0.5rem;">' + escHtml(n.label) + '</td>'
      + '<td style="padding:0.5rem;"><span style="color:'+color+';font-weight:600;">' + escHtml(n.source) + '</span></td></tr>';
  }
}

function escHtml(s) { var d = document.createElement('div'); d.textContent = s; return d.innerHTML; }
</script>
{% endblock %}