{% extends "base.html" %}
{% block title %}Anomaly Detection{% endblock %}

{% block content %}
<div class="container py-4">
  <div class="topbar mb-4">
    <span class="page-title">
      <i class="bi bi-robot"></i>AI Anomaly Detection
    </span>
  </div>
  <p class="text-muted">
    Evidence items are scored by an Isolation Forest model trained on six
    custody-behaviour features. Scores near 1.0 indicate unusual patterns
    compared to the rest of the dataset.
  </p>

  {% if not records %}
    <div class="alert alert-warning">
      Not enough evidence items to run anomaly detection (minimum 3 required).
    </div>
  {% else %}
  <div class="card shadow-sm">
    <div class="card-body p-0">
      <table class="table table-hover align-middle mb-0">
        <thead class="table-dark">
          <tr>
            <th>Rank</th>
            <th>Evidence</th>
            <th style="min-width:160px;">Anomaly Score</th>
            <th>Flagged?</th>
            <th>Key Features</th>
            <th>Actions</th>
          </tr>
        </thead>
        <tbody>
          {% for rec in records %}
          <tr>
            <td>{{ loop.index }}</td>
            <td>#{{ rec.evidence_id }} - {{ rec.evidence_title }}</td>
            <td>
              {% set score_val = rec.anomaly_score %}
              {% set bar_col = 'bg-success' if score_val < 0.25
                          else 'bg-warning' if score_val < 0.50
                          else 'bg-danger' if score_val < 0.75
                          else 'bg-dark' %}
              {% set pct = (score_val * 100) | int %}
              <div class="progress" style="height:20px;">
                <div class="progress-bar {{ bar_col }}"
                     style="width:{{ pct }}%">
                  {{ '%.3f' | format(score_val) }}
                </div>
              </div>
            </td>
            <td>
              {% if rec.is_anomaly %}
                <span class="risk-badge level-high">Anomaly</span>
              {% else %}
                <span class="risk-badge level-low">Normal</span>
              {% endif %}
            </td>
            <td>
              <small>
                transfers: {{ rec.feature_vector.transfer_count | round(2) }} |
                rate: {{ rec.feature_vector.transfer_rate | round(2) }} |
                handlers: {{ rec.feature_vector.unique_handler_count | int }} |
                max gap: {{ rec.feature_vector.max_gap_days | round(1) }}d
              </small>
            </td>
            <td>
              <a href="{{ url_for('risk.evidence_risk', evidence_id=rec.evidence_id) }}"
                 class="btn btn-sm btn-outline-primary">Risk Report</a>
            </td>
          </tr>
          {% endfor %}
        </tbody>
      </table>
    </div>
  </div>
  {% endif %}
</div>
{% endblock %}