{% extends "base.html" %}

{% block title %}TapDB Graph Explorer{% endblock %}

{% block head %}
<script src="https://cdn.jsdelivr.net/npm/cytoscape@3.28.1/dist/cytoscape.min.js" crossorigin="anonymous"></script>
<script src="https://unpkg.com/dagre@0.8.5/dist/dagre.min.js"></script>
<script src="https://unpkg.com/cytoscape-dagre@2.5.0/cytoscape-dagre.js"></script>
<style>
    :root {
        --card-bg: var(--tapdb-panel);
        --secondary-color: var(--tapdb-primary);
        --bg-color: var(--tapdb-bg);
        --text-color: var(--tapdb-text);
        --text-muted: var(--tapdb-muted);
        --border-color: var(--tapdb-border);
    }
    #graph-layout {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        width: min(98vw, 1500px);
        margin: 0 auto;
    }
    #cy-container {
        display: flex;
        gap: 1rem;
        width: 100%;
        height: 80vh;
        min-height: 560px;
    }
    #tapdb-graph {
        flex: 1 1 80%;
        width: 80%;
        height: 100%;
        background: #0d1117;
        border-radius: 8px;
        border: 1px solid var(--border-color);
    }
    #sidebar {
        flex: 1 1 20%;
        width: 20%;
        min-width: 280px;
        max-width: 360px;
        display: flex;
        flex-direction: column;
        gap: 1rem;
        overflow-y: auto;
    }
    .control-panel {
        background: var(--card-bg);
        padding: 1rem;
        border-radius: 8px;
    }
    .control-panel h3 {
        margin-bottom: 0.75rem;
        color: var(--secondary-color);
        font-size: 1rem;
    }
    .control-group {
        margin-bottom: 0.75rem;
    }
    .control-group label {
        display: block;
        margin-bottom: 0.25rem;
        font-size: 0.85rem;
        color: var(--text-muted);
    }
    .control-group input, .control-group select {
        width: 100%;
        padding: 0.5rem;
        border-radius: 4px;
        border: 1px solid var(--border-color);
        background: var(--bg-color);
        color: var(--text-color);
    }
    .btn-row {
        display: flex;
        gap: 0.5rem;
        flex-wrap: wrap;
    }
    .btn-row .btn {
        flex: 1 1 auto;
    }
    .btn {
        display: inline-block;
        padding: 0.48rem 0.65rem;
        border: 1px solid var(--tapdb-primary);
        border-radius: 6px;
        background: var(--tapdb-primary);
        color: #fff;
        text-decoration: none;
        cursor: pointer;
    }
    .btn:disabled {
        cursor: not-allowed;
        opacity: 0.55;
    }
    .range-row {
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 0.5rem;
        align-items: center;
    }
    .range-row span {
        color: var(--text-muted);
        font-size: 0.85rem;
        min-width: 2rem;
        text-align: right;
    }
    .type-filter-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.35rem 0.5rem;
        max-height: 160px;
        overflow-y: auto;
    }
    .type-filter-item {
        font-size: 0.78rem;
        color: var(--text-color);
        display: flex;
        gap: 0.35rem;
        align-items: center;
        white-space: nowrap;
    }
    .subtype-buttons {
        display: flex;
        flex-wrap: wrap;
        gap: 0.35rem;
        max-height: 180px;
        overflow-y: auto;
    }
    .subtype-chip {
        border: 1px solid var(--border-color);
        border-radius: 999px;
        background: var(--bg-color);
        color: var(--text-color);
        font-size: 0.72rem;
        padding: 0.2rem 0.55rem;
        cursor: pointer;
    }
    .subtype-chip.active {
        background: var(--secondary-color);
        color: #fff;
        border-color: var(--secondary-color);
    }
    #node-info {
        background: var(--card-bg);
        padding: 1rem;
        border-radius: 8px;
        min-height: 180px;
        max-height: 36vh;
        overflow-y: auto;
    }
    #node-info h3 {
        margin-bottom: 0.75rem;
        color: var(--secondary-color);
    }
    #node-info-content {
        font-size: 0.9rem;
    }
    #node-info-content p {
        margin-bottom: 0.5rem;
    }
    #node-info-content strong {
        color: var(--text-muted);
    }
    .details-grid {
        display: grid;
        grid-template-columns: minmax(130px, 220px) 1fr;
        gap: 0.35rem 0.75rem;
        margin-bottom: 0.8rem;
    }
    .detail-key {
        color: var(--text-muted);
        font-weight: 600;
        word-break: break-word;
    }
    .detail-value {
        color: var(--text-color);
        word-break: break-word;
    }
    .details-section-title {
        font-size: 0.82rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: var(--secondary-color);
        margin: 0.8rem 0 0.35rem 0;
    }
    .json-block {
        margin: 0;
        padding: 0.65rem;
        border-radius: 6px;
        border: 1px solid var(--border-color);
        background: var(--bg-color);
        font-size: 0.78rem;
        line-height: 1.35;
        overflow-x: auto;
        white-space: pre-wrap;
        word-break: break-word;
    }
    #graph-mode-status {
        margin-top: 0.6rem;
        padding: 0.5rem 0.6rem;
        border: 1px solid var(--border-color);
        border-radius: 6px;
        font-size: 0.82rem;
        color: var(--text-muted);
        min-height: 2.1rem;
    }
    #graph-mode-status.ok {
        color: #c9ffd9;
        border-color: #2f7a4a;
    }
    #graph-mode-status.warn {
        color: #ffd7a8;
        border-color: #8d6b2f;
    }
    #graph-mode-status.error {
        color: #ffd0d0;
        border-color: #8b3d3d;
    }
    #relationship-dialog {
        border: 1px solid var(--border-color);
        border-radius: 8px;
        background: var(--card-bg);
        color: var(--text-color);
        width: min(92vw, 440px);
    }
    #relationship-dialog::backdrop {
        background: rgba(0, 0, 0, 0.45);
    }
    #relationship-dialog h3 {
        margin: 0 0 0.6rem 0;
        color: var(--secondary-color);
    }
    #relationship-dialog p {
        margin: 0.35rem 0 0.75rem 0;
        color: var(--text-muted);
    }
    #relationship-dialog select {
        width: 100%;
        margin-bottom: 0.9rem;
        padding: 0.5rem;
        border-radius: 4px;
        border: 1px solid var(--border-color);
        background: var(--bg-color);
        color: var(--text-color);
    }
    #relationship-dialog .dialog-actions {
        display: flex;
        justify-content: flex-end;
        gap: 0.5rem;
    }
    #relationship-dialog button {
        padding: 0.45rem 0.7rem;
    }
    .legend {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        margin-top: 0.5rem;
    }
    .legend-item {
        display: flex;
        align-items: center;
        gap: 0.25rem;
        font-size: 0.75rem;
    }
    .legend-color {
        width: 12px;
        height: 12px;
        border-radius: 2px;
    }
    .loading {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 100%;
        color: var(--text-muted);
    }
    .graph-mermaid-source {
        min-height: 220px;
        max-height: 260px;
        white-space: pre;
    }
    @media (max-width: 980px) {
        #cy-container {
            flex-direction: column;
            height: auto;
            min-height: 0;
        }
        #sidebar {
            width: 100%;
            min-width: 0;
            max-width: none;
            max-height: 42vh;
        }
        #tapdb-graph {
            width: 100%;
            height: 60vh;
            min-height: 420px;
        }
        #node-info {
            max-height: 45vh;
        }
        .details-grid {
            grid-template-columns: 1fr;
        }
        .type-filter-grid {
            grid-template-columns: 1fr;
        }
    }
</style>
{% endblock %}

{% block content %}
{% if euid %}
<h1 style="margin-bottom: 0.35rem;">Graph: <a href="{{ tapdb_gui_url(request, '/object/' ~ euid) }}">{{ euid }}</a></h1>
{% else %}
<h1 style="margin-bottom: 0.35rem;">TapDB Graph Explorer</h1>
{% endif %}
{% set graph_meta = graph.get("meta", {}) %}
<p style="margin-top: 0;">Canonical DAG v2: persisted lineage only. Leave Start EUID blank to inspect the bounded graph visible to your database role.</p>
{% if graph_meta.get("truncated") %}<p class="notice warning">Initial bounded result: {{ graph_meta.get("truncation_reason") }}</p>{% endif %}

<div id="graph-layout">
    <div id="cy-container">
        <div id="tapdb-graph" data-testid="tapdb-graph" aria-label="Object graph"><div class="loading">Loading graph data...</div></div>
        <div id="sidebar">
            <div class="control-panel">
                <h3>🔍 Navigation</h3>
                <div class="control-group">
                    <label for="start-euid">Start EUID</label>
                    <input type="text" id="start-euid" value="{{ euid }}" placeholder="blank shows visible graph">
                </div>
                <div class="control-group">
                    <label for="depth">Depth</label>
                    <input type="number" id="depth" value="{{ depth }}" min="0" max="10">
                </div>
                <div class="control-group">
                    <label for="max-nodes">Maximum Nodes</label>
                    <input type="number" id="max-nodes" value="{{ max_nodes }}" min="1" max="1000">
                </div>
                <div class="control-group">
                    <label for="max-edges">Maximum Edges</label>
                    <input type="number" id="max-edges" value="{{ max_edges }}" min="1" max="5000">
                </div>
                <div class="btn-row">
                    <button class="btn" type="button" onclick="loadGraph()">Load Graph</button>
                    <button class="btn" type="button" onclick="cy && cy.fit()">Fit</button>
                </div>
            </div>

            <div class="control-panel">
                <h3>🔎 Search & Find</h3>
                <div class="control-group">
                    <label for="search-query">Fuzzy Search</label>
                    <input type="text" id="search-query" placeholder="Match id, name, type, subtype">
                </div>
                <div class="control-group">
                    <label for="find-euid">Find Exact EUID</label>
                    <input type="text" id="find-euid" placeholder="Exact EUID in current graph">
                </div>
                <div class="btn-row">
                    <button class="btn" type="button" onclick="applySearch(true)">Apply Search</button>
                    <button class="btn" type="button" onclick="findAndCenterByEuid()">Find</button>
                </div>
            </div>

            <div class="control-panel">
                <h3>🧰 Filters</h3>
                <div class="control-group">
                    <label for="transparency-slider">Connected Edge Count ≤</label>
                    <div class="range-row">
                        <input type="range" id="transparency-slider" min="0" max="20" value="1">
                        <span id="transparency-display">1</span>
                    </div>
                </div>
                <div class="control-group">
                    <label for="distance-slider">Relative Distance (0 = all)</label>
                    <div class="range-row">
                        <input type="range" id="distance-slider" min="0" max="15" value="0">
                        <span id="distance-display">0</span>
                    </div>
                </div>
                <div class="control-group">
                    <label>Type Visibility</label>
                    <div id="type-checkboxes" class="type-filter-grid">
                        <span style="color: var(--text-muted); font-size: 0.78rem;">Load graph to populate.</span>
                    </div>
                </div>
                <div class="control-group">
                    <label>Subtype Muting</label>
                    <div id="subtype-buttons" class="subtype-buttons">
                        <span style="color: var(--text-muted); font-size: 0.78rem;">Load graph to populate.</span>
                    </div>
                </div>
            </div>

            <div class="control-panel">
                <h3>⚙️ Layout</h3>
                <div class="control-group">
                    <label for="layout-select">Layout Type</label>
                    <select id="layout-select" onchange="applyLayout()">
                        <option value="dagre">Dagre (Hierarchical)</option>
                        <option value="cose">CoSE (Force-directed)</option>
                        <option value="breadthfirst">Breadth First</option>
                        <option value="circle">Circle</option>
                        <option value="grid">Grid</option>
                    </select>
                </div>
            </div>

            {% if user.role|lower == 'admin' %}
            <div class="control-panel">
                <h3>⌨️ Graph Gestures</h3>
                <div style="font-size: 0.74rem; color: var(--text-muted); line-height: 1.42;">
                    <div><strong>D + right click</strong>: delete node or edge</div>
                    <div><strong>3x left click node</strong>: child-wave glow (pink)</div>
                    <div><strong>3x right click node</strong>: parent-wave glow (aqua)</div>
                    <div><strong>L + left click node</strong>: pick child, then click parent to create edge</div>
                    <div><strong>N + left click node</strong>: neighborhood highlight</div>
                </div>
                <div id="graph-mode-status">Ready.</div>
            </div>
            {% else %}
            <div class="control-panel">
                <h3>⌨️ Graph Gestures</h3>
                <div style="font-size: 0.74rem; color: var(--text-muted); line-height: 1.42;">
                    <div><strong>3x left click node</strong>: child-wave glow (pink)</div>
                    <div><strong>3x right click node</strong>: parent-wave glow (aqua)</div>
                    <div><strong>N + left click node</strong>: neighborhood highlight</div>
                </div>
                <div id="graph-mode-status">Read-only graph access.</div>
            </div>
            {% endif %}

            <div class="control-panel">
                <h3>🎨 Legend</h3>
                <div class="legend" id="legend-items">
                    <span style="color: var(--text-muted); font-size: 0.85rem;">Loading...</span>
                </div>
            </div>

            <div class="control-panel">
                <h3>💾 Export</h3>
                <div class="btn-row" style="margin-bottom: 0.75rem;">
                    <button id="graph-save" class="btn" type="button">Save DAG</button>
                </div>
                <div class="details-section-title" style="margin-top: 0;">Mermaid</div>
                <pre id="graph-mermaid-source" class="json-block graph-mermaid-source">Load a graph to generate Mermaid.</pre>
            </div>
        </div>
    </div>

    <div id="node-info">
        <h3>📋 Details</h3>
        <div id="node-info-content">
            <p style="color: var(--text-muted);">No selection — click a node or edge to see details</p>
        </div>
    </div>
</div>

<section class="band">
  <details>
    <summary>Nodes and edges</summary>
    <div class="grid2">
      <div>
        <h2>Nodes</h2>
        <table><thead><tr><th>EUID</th><th>Name</th><th>Type</th></tr></thead><tbody>
        {% for node in graph.elements.nodes %}
        <tr><td><a href="{{ tapdb_gui_url(request, '/object/' ~ node.data.euid) }}">{{ node.data.euid }}</a></td><td>{{ node.data.display_label }}</td><td>{{ node.data.category }}/{{ node.data.type }}</td></tr>
        {% endfor %}
        </tbody></table>
      </div>
      <div>
        <h2>Edges</h2>
        <table><thead><tr><th>EUID</th><th>Parent</th><th>Child</th><th>Type</th></tr></thead><tbody>
        {% for edge in graph.elements.edges %}
        <tr><td><a href="{{ tapdb_gui_url(request, '/object/' ~ edge.data.euid) }}">{{ edge.data.euid }}</a></td><td><a href="{{ tapdb_gui_url(request, '/object/' ~ edge.data.source) }}">{{ edge.data.source }}</a></td><td><a href="{{ tapdb_gui_url(request, '/object/' ~ edge.data.target) }}">{{ edge.data.target }}</a></td><td>{{ edge.data.relationship_type }}</td></tr>
        {% endfor %}
        </tbody></table>
      </div>
    </div>
  </details>
</section>

<section class="band">
  <details>
    <summary>Payload JSON</summary>
    <pre>{{ graph | tojson(indent=2) }}</pre>
  </details>
</section>
<script type="application/json" id="tapdb-graph-payload">{{ graph | tojson }}</script>

{% if user.role|lower == 'admin' %}
<dialog id="relationship-dialog">
    <h3>Create Lineage Edge</h3>
    <p id="relationship-dialog-context"></p>
    <label for="relationship-type-select" style="font-size: 0.85rem; color: var(--text-muted);">Relationship Type</label>
    <select id="relationship-type-select">
        <option value="contains">contains</option>
        <option value="derived_from">derived_from</option>
        <option value="references">references</option>
        <option value="depends_on">depends_on</option>
        <option value="produces">produces</option>
        <option value="consumes">consumes</option>
        <option value="generic" selected>generic</option>
        <option value="related">related</option>
    </select>
    <div class="dialog-actions">
        <button id="relationship-dialog-cancel" type="button" class="btn">Cancel</button>
        <button id="relationship-dialog-create" type="button" class="btn btn-success">Create Edge</button>
    </div>
</dialog>
{% endif %}
{% endblock %}

{% block scripts %}
<script>
    window.TAPDB_GRAPH_CAN_MUTATE = {{ (user.role|lower == 'admin') | tojson }};
</script>
<script src="{{ tapdb_gui_url(request, '/static/tapdb-graph.js') }}?v=10.0.0"></script>
<script>
    document.addEventListener('DOMContentLoaded', function() {
        initGraphPage();
    });
</script>
{% endblock %}