{% extends "drf_inspector/base.html" %}

{% block page_header %}
<div class="mb-8">
    <h2 class="text-4xl font-bold text-blue-500">
        Model Relationships
    </h2>
    <p class="text-gray-500 mt-2">
        Explore your DRF model structure and relationships.
    </p>
</div>
{% endblock %}

{% block action_buttons %}
<div class="flex gap-3 mb-6 flex-wrap">
    <a
        href="{% url 'drf_inspector:export_json' %}"
        class="px-4 py-2 rounded-xl bg-gray-900 text-white text-sm"
    >
        Download JSON
    </a>
    <a
        href="{% url 'drf_inspector:export_markdown' %}"
        class="px-4 py-2 rounded-xl bg-white border text-sm"
    >
        Download Markdown
    </a>
</div>
{% endblock %}

{% block content %}

<!-- GRAPH -->
<div id="graph" style="
        width: 100%;
        height: 90vh;
    "></div>

<!-- DATA -->
{{ graph|json_script:"graph-data" }}

<script>

    const graphData =
        JSON.parse(
            document.getElementById(
                "graph-data"
            ).textContent
        )

    const elements = []

    // NODES
    graphData.nodes.forEach(node => {

        elements.push({
            data: {
                id: node.id,
                label: node.id
            }
        })

    })


    // EDGES
    graphData.edges.forEach(
        (edge, index) => {

            elements.push({

                data: {

                    id: "edge-" + index,

                    source: edge.source,

                    target: edge.target,

                    label: edge.label,

                    relationType: edge.type
                }
            })
        })

    cytoscape.use(cytoscapeDagre)
    const cy = cytoscape({

        container:
            document.getElementById(
                "graph"
            ),

        elements: elements,

        style: [

            // NODES
            {
                selector: "node",

                style: {

                    "label":
                        "data(label)",

                    "text-valign":
                        "center",

                    "color":
                        "#fff",

                    "background-color":
                        "#2563eb",

                    "width":
                        70,

                    "height":
                        70,

                    "font-size":
                        12
                }
            },

            // EDGES
            {
                selector: "edge",

                style: {

                    "curve-style":
                        "bezier",

                    "target-arrow-shape":
                        "triangle",

                    "line-color":
                        "#999",

                    "target-arrow-color":
                        "#999",

                    "width":
                        2,

                    "label":
                        "data(label)",

                    "font-size":
                        10,

                    "text-rotation":
                        "autorotate",

                    "text-margin-y":
                        -12,

                    "text-background-opacity":
                        1,

                    "text-background-color":
                        "#fff",

                    "text-background-padding":
                        3
                }
            }
        ],

        layout: {

            name: "dagre",

            rankDir: "LR",

            nodeSep: 80,

            edgeSep: 20,

            rankSep: 150,

            animate: true
        }
    })

    lucide.createIcons()

</script>

{% endblock %}

</html>