{% extends "base.html" %}

{% block title %}Chronicle Timeline — Ontoref{% endblock title %}
{% block nav_group_knowledge %}active{% endblock nav_group_knowledge %}
{% block main_class %}container mx-auto px-4 py-6{% endblock main_class %}

{% block head %}
<link rel="stylesheet" href="{{ base_url }}/assets/vendor/vis-timeline.min.css" />
<style>
  #timeline-root {
    width: 100%;
    height: calc(100vh - 220px);
    min-height: 400px;
    border-radius: 0.5rem;
    overflow: hidden;
    border: 1px solid oklch(var(--bc) / 0.12);
  }
  .vis-item { border-radius: 4px; font-size: 12px; }
  .vis-item.vis-selected { border-color: oklch(var(--p)); background: oklch(var(--p) / 0.15); }
  .vis-label { font-size: 12px; color: oklch(var(--bc) / 0.85); }
  .vis-timeline { background: oklch(var(--b1)); color: oklch(var(--bc)); }
  .vis-time-axis .vis-text { color: oklch(var(--bc) / 0.6); }
  .vis-panel.vis-center, .vis-panel.vis-left { border-color: oklch(var(--bc) / 0.12); }
  #detail-panel {
    position: fixed; right: 1rem; bottom: 1rem; width: 340px;
    background: oklch(var(--b2)); border: 1px solid oklch(var(--bc) / 0.18);
    border-radius: 0.75rem; padding: 1rem; z-index: 40;
    box-shadow: 0 4px 24px oklch(var(--bc) / 0.12);
    display: none;
  }
</style>
{% endblock head %}

{% block content %}
<div class="flex items-center justify-between mb-4 gap-4">
  <h1 class="text-xl font-semibold">Chronicle Timeline</h1>
  <div class="flex gap-2 items-center">
    <select id="kind-filter" class="select select-bordered select-sm" onchange="applyFilter()">
      <option value="">All kinds</option>
      <option value="adr">ADR</option>
      <option value="milestone">Milestone</option>
      <option value="insight">Insight</option>
      <option value="interaction">Interaction</option>
      <option value="migration">Migration</option>
    </select>
    <button class="btn btn-ghost btn-sm" onclick="timeline.fit()">Fit</button>
  </div>
</div>
<div id="timeline-root"></div>
<div id="detail-panel">
  <div class="flex justify-between items-start mb-2">
    <span id="dp-kind" class="badge badge-sm"></span>
    <button class="btn btn-ghost btn-xs" onclick="document.getElementById('detail-panel').style.display='none'">✕</button>
  </div>
  <p id="dp-date" class="text-xs opacity-60 mb-1"></p>
  <p id="dp-title" class="font-medium mb-1 text-sm"></p>
  <p id="dp-summary" class="text-xs opacity-75 leading-relaxed"></p>
  <div id="dp-refs" class="mt-2 flex flex-wrap gap-1"></div>
</div>
{% endblock content %}

{% block scripts %}
<script src="{{ base_url }}/assets/vendor/vis-timeline.min.js"></script>
<script>
const DATA = {{ timeline_json | safe }};

const KIND_COLOR = {
  adr:         { bg: "#3b82f6", fg: "#fff" },
  milestone:   { bg: "#f59e0b", fg: "#000" },
  insight:     { bg: "#10b981", fg: "#fff" },
  interaction: { bg: "#8b5cf6", fg: "#fff" },
  migration:   { bg: "#ec4899", fg: "#fff" },
};
function kindColor(k) { return KIND_COLOR[k] || { bg: "#6b7280", fg: "#fff" }; }

const GROUPS = [...new Set(DATA.map(e => e.kind))].map(k => ({
  id: k,
  content: `<span class="text-xs font-mono">${k}</span>`,
}));

let allItems = DATA.map(e => {
  const c = kindColor(e.kind);
  return {
    id: e.id,
    group: e.kind,
    start: e.date || "1970-01-01",
    content: `<span style="max-width:220px;display:inline-block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">${e.title}</span>`,
    title: e.title,
    style: `background:${c.bg};color:${c.fg};border-color:${c.bg};`,
    _entry: e,
  };
});

const container = document.getElementById('timeline-root');
const items = new vis.DataSet(allItems);
const groups = new vis.DataSet(GROUPS);

const timeline = new vis.Timeline(container, items, groups, {
  stack: true,
  orientation: { axis: "top" },
  selectable: true,
  zoomMin: 1000 * 60 * 60 * 24 * 7,
  zoomMax: 1000 * 60 * 60 * 24 * 365 * 3,
});

timeline.on('select', ({ items: sel }) => {
  if (!sel.length) return;
  const item = allItems.find(i => i.id === sel[0]);
  if (!item) return;
  const e = item._entry;
  const dp = document.getElementById('detail-panel');
  const c = kindColor(e.kind);
  document.getElementById('dp-kind').textContent = e.kind;
  document.getElementById('dp-kind').style.cssText = `background:${c.bg};color:${c.fg}`;
  document.getElementById('dp-date').textContent = e.date || "";
  document.getElementById('dp-title').textContent = e.title;
  document.getElementById('dp-summary').textContent = e.summary || "";
  const refsEl = document.getElementById('dp-refs');
  refsEl.innerHTML = (e.refs || []).map(r =>
    `<span class="badge badge-outline badge-xs">${r}</span>`
  ).join('');
  dp.style.display = 'block';
});

function applyFilter() {
  const val = document.getElementById('kind-filter').value;
  const filtered = val ? allItems.filter(i => i._entry.kind === val) : allItems;
  items.clear();
  items.add(filtered);
  timeline.fit();
}

timeline.fit();
</script>
{% endblock scripts %}