{% extends "base.html" %}
{% block body_class %}themed-bg{% endblock %}

{% block content %}
<div class="container">
  <h1 class="page-title">Statistics</h1>

  <div class="card" style="padding:16px; margin-bottom:16px;">
    <div class="meta-grid">
      <div>
        <div class="meta-label">Total Illustrations</div>
        <div class="subject-title" style="margin:0">{{ total }}</div>
      </div>
      <div>
        <div class="meta-label">Added in last 30 days</div>
        <div class="subject-title" style="margin:0">{{ last30 }}</div>
      </div>
      <div>
        <div class="meta-label">Added in last 365 days</div>
        <div class="subject-title" style="margin:0">{{ last365 }}</div>
      </div>
    </div>
  </div>

  <!-- Sparkline (simple bars) -->
  <div class="card" style="padding:16px; margin-bottom:16px;">
    <div class="meta-label">Adds by Month (last 12)</div>
    <div style="display:flex; align-items:flex-end; gap:6px; height:140px; margin-top:8px;">
      {% for label, value, height in heights %}
        <div title="{{ label }} = {{ value }}"
             style="width:22px; height:{{ height }}px; background:#cfe3f6; border:1px solid #bcd4ee; border-radius:6px;"></div>
      {% endfor %}
    </div>
    <div class="small muted" style="margin-top:6px;">
      {% for label, value in series %}{% if not forloop.last %}{{ label }} · {% else %}{{ label }}{% endif %}{% endfor %}
    </div>
  </div>

  <!-- Top subjects -->
  <div class="card" style="padding:16px; margin-bottom:16px;">
    <div class="meta-label">Top Subjects</div>
    <div style="display:flex; flex-wrap:wrap; gap:8px; margin-top:8px;">
      {% for s in top_subjects %}
        <span class="chip chip-muted">{{ s.name }} ({{ s.count }})</span>
      {% empty %}
        <span class="muted">No subjects.</span>
      {% endfor %}
    </div>
  </div>

  <!-- Scripture usage -->
  <div class="card" style="padding:16px; margin-bottom:16px;">
    <h3 style="margin:0 0 10px;">Scripture Usage</h3>
    <div class="chip" style="margin-bottom:10px;"><strong>Avg. refs per scripture-bearing entry:</strong>&nbsp;{{ avg_refs_per_entry }}</div>

    <div style="display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px;">
      <div>
        <h4 style="margin:0 0 6px;">Top 10 Books</h4>
        <ol class="small" style="margin:0; padding-left:18px;">
          {% for book, cnt in top_books %}
            <li><strong>{{ book }}</strong> — {{ cnt }}</li>
          {% empty %}
            <li class="muted">No data yet.</li>
          {% endfor %}
        </ol>
      </div>
      <div>
        <h4 style="margin:0 0 6px;">Top 10 Scriptures</h4>
        <ol class="small" style="margin:0; padding-left:18px;">
          {% for ref, cnt in top_refs %}
            <li><strong>{{ ref }}</strong> — {{ cnt }}</li>
          {% empty %}
            <li class="muted">No data yet.</li>
          {% endfor %}
        </ol>
      </div>
    </div>
  </div>

  <!-- Tools: Scripture normalizer -->
  <div class="card" style="padding:16px; margin-bottom:24px;">
    <div class="meta-label">Tools</div>
    <div class="small muted" style="margin:6px 0 10px;">
      Normalize scripture references (abbreviations, separators, repeat book names where needed).
    </div>
    <div style="display:flex; gap:10px; flex-wrap:wrap;">
      <!-- Dry‑run -->
      <form method="get" action="{% url 'normalize_scripture' %}">
        <input type="hidden" name="limit" value="">
        <button class="btn btn-secondary">Preview (dry‑run)</button>
      </form>

      {% if user.is_authenticated and user.is_staff %}
      <!-- Apply -->
      <form method="post" action="{% url 'normalize_scripture' %}">
        {% csrf_token %}
        <button class="btn btn-danger" onclick="return confirm('Apply normalization to ALL entries? This will modify scripture_raw fields.');">
          Apply to all
        </button>
      </form>
      {% endif %}
    </div>
    <div class="small muted" style="margin-top:8px;">
      Tip: you can pass <code>?limit=1000</code> on the preview URL to test a subset.
    </div>
  </div>
  <!-- Source Normalizer card (like Scripture tool) -->
<div class="search-form" style="margin-top:16px;">
  <h3 style="margin:0 0 10px;">Tools — Source Normalizer</h3>
  <p class="small muted" style="margin:0 0 8px;">
    Convert Watchtower/Awake!/Yearbook/KM references (e.g., “March 15, 2013 WT page 14”) into WOL short-codes
    like <code>w13 3/15 p.14</code>. Non‑JW sources are left unchanged.
  </p>

  <form method="get" action="{% url 'normalize_source' %}" style="display:inline;">
    <input type="number" min="0" name="limit" placeholder="Preview limit (optional)" style="border:1px solid var(--border); border-radius:8px; padding:6px 8px;">
    <button class="btn">Dry‑run Preview</button>
  </form>

  <form method="post" action="{% url 'normalize_source' %}" style="display:inline; margin-left:8px;">
    {% csrf_token %}
    <button class="btn btn-danger" onclick="return confirm('Apply normalization to all entries? This cannot be undone. Make a backup first.')">
      Apply to All
    </button>
  </form>
</div>
</div>
{% endblock %}