{% extends "base.html" %}
{% block title %}Issues{% endblock %}
{% block content %}
<div class="d-flex justify-content-between align-items-center mb-4">
  <h2><i class="bi bi-exclamation-triangle"></i> Issues</h2>
  {% if current_user.role in ['admin','director','customer'] %}
  <a href="{{ url_for('issues.create') }}" class="btn btn-danger">
    <i class="bi bi-plus-circle"></i> Log Issue
  </a>
  {% endif %}
</div>

<div class="card shadow-sm mb-4">
  <div class="card-body py-2">
    <form method="get" class="row g-2 align-items-end">
      <div class="col-md-1">
        <label class="form-label small mb-1">Issue #</label>
        <input type="number" name="issue_id" class="form-control form-control-sm"
               min="1" placeholder="ID" value="{{ issue_id_filter }}">
      </div>
      <div class="col-md-2">
        <label class="form-label small mb-1">Severity</label>
        <select name="severity" class="form-select form-select-sm">
          <option value="">All</option>
          {% for s in ['critical','high','medium','low'] %}
          <option value="{{ s }}" {{ 'selected' if severity_filter == s }}>{{ s|title }}</option>
          {% endfor %}
        </select>
      </div>
      <div class="col-md-2">
        <label class="form-label small mb-1">Status</label>
        <select name="status" class="form-select form-select-sm">
          <option value="">All</option>
          {% for s in ['open','in_progress','pending_verification','resolved'] %}
          <option value="{{ s }}" {{ 'selected' if status_filter == s }}>{{ s|replace('_',' ')|title }}</option>
          {% endfor %}
        </select>
      </div>
      <div class="col-md-2">
        <label class="form-label small mb-1">SLA</label>
        <select name="sla" class="form-select form-select-sm">
          <option value="">All</option>
          <option value="breached" {{ 'selected' if sla_filter == 'breached' }}>Breached</option>
          <option value="at_risk"  {{ 'selected' if sla_filter == 'at_risk' }}>At Risk</option>
          <option value="ok"       {{ 'selected' if sla_filter == 'ok' }}>OK</option>
        </select>
      </div>
      <div class="col-md-2">
        <label class="form-label small mb-1">Contract</label>
        <select name="contract_id" id="filter_contract_id" class="form-select form-select-sm">
          <option value="">All Contracts</option>
          {% for p in projects %}
          <option value="{{ p.id }}" {{ 'selected' if contract_filter == p.id|string }}>{{ p.name }}</option>
          {% endfor %}
        </select>
      </div>
      <div class="col-md-2">
        <label class="form-label small mb-1">Facility</label>
        <select name="facility_id" id="filter_facility_id" class="form-select form-select-sm">
          <option value="">All Facilities</option>
          {% for f in facilities %}
          <option value="{{ f.id }}" {{ 'selected' if facility_filter == f.id|string }}>{{ f.name }}</option>
          {% endfor %}
        </select>
      </div>
      <div class="col-md-2">
        <label class="form-label small mb-1">Reported From</label>
        <input type="date" name="date_from" class="form-control form-control-sm"
               value="{{ date_from_filter }}">
      </div>
      <div class="col-md-2">
        <label class="form-label small mb-1">Reported To</label>
        <input type="date" name="date_to" class="form-control form-control-sm"
               value="{{ date_to_filter }}">
      </div>
      <div class="col-auto d-flex align-items-end gap-2 flex-wrap">
        <button type="submit" class="btn btn-sm btn-outline-primary">Filter</button>
        <a href="{{ url_for('issues.index') }}" class="btn btn-sm btn-outline-secondary">Clear</a>
        <a href="{{ url_for('issues.export_list_pdf', **request.args) }}"
           class="btn btn-sm btn-outline-danger">
          <i class="bi bi-file-earmark-pdf"></i> Export PDF
        </a>
      </div>
    </form>
  </div>
</div>

<div class="card shadow-sm">
  <div class="card-body p-0">
    {% if issues.items %}
    <div class="table-responsive">
      <table class="table table-hover mb-0">
        <thead class="table-light">
          <tr>
            <th>#</th>
            <th>Reported</th>
            <th>Severity</th>
            <th>Contract</th>
            <th>Facility / Area</th>
            <th>Description</th>
            <th>Status</th>
            <th>SLA</th>
            <th>Assigned</th>
            <th></th>
          </tr>
        </thead>
        <tbody>
          {% for issue in issues.items %}
          {% set is_following = issue.id in followed_ids %}
          {% set sla = sla_status(issue) %}
          <tr class="{{ 'table-danger' if sla == 'breached' else 'table-warning' if sla == 'at_risk' else '' }}">
            <td><small class="text-muted">#{{ issue.id }}</small></td>
            <td><small>{{ issue.reported_at.strftime('%Y-%m-%d %H:%M') }}</small></td>
            <td>
              <span class="badge bg-{{ 'danger' if issue.severity in ['critical','high'] else 'warning text-dark' if issue.severity == 'medium' else 'secondary' }}">
                {{ issue.severity|title }}
              </span>
            </td>
            <td>
              {% set _c = issue.resolved_facility.project if issue.resolved_facility else none %}
              <small>{{ _c.name if _c else '—' }}</small>
            </td>
            <td>
              {{ issue.resolved_facility.name if issue.resolved_facility else '—' }}<br>
              <small class="text-muted">{{ issue.area.name if issue.area else '—' }}</small>
            </td>
            <td>{{ issue.description[:60] }}{% if issue.description|length > 60 %}…{% endif %}</td>
            <td>
              <span class="badge bg-{{ 'success' if issue.status == 'resolved' else 'info text-dark' if issue.status == 'pending_verification' else 'warning text-dark' if issue.status == 'in_progress' else 'danger' }}">
                {{ issue.status|replace('_',' ')|title }}
              </span>
            </td>
            <td>
              {% if sla == 'breached' %}
              <span class="badge bg-danger" title="SLA deadline has passed"><i class="bi bi-alarm me-1"></i>Breached</span>
              {% elif sla == 'at_risk' %}
              {% set hrs = sla_hours_remaining(issue) %}
              <span class="badge bg-warning text-dark" title="Over 75% of SLA window elapsed"><i class="bi bi-hourglass-split me-1"></i>{{ hrs|abs|round(1) }}h left</span>
              {% elif sla == 'ok' %}
              <span class="badge bg-secondary">OK</span>
              {% else %}
              <span class="text-muted small">—</span>
              {% endif %}
            </td>
            <td>
              {% if current_user.role in ['admin', 'director'] and issue.status != 'resolved' %}
              <div class="d-flex align-items-center gap-1 quick-assign-wrap" data-issue-id="{{ issue.id }}">
                <select class="form-select form-select-sm quick-assign-select" style="min-width:110px;font-size:.78rem;">
                  <option value="">— Unassigned —</option>
                  {% for u in staff %}
                  <option value="{{ u.id }}" {{ 'selected' if issue.assigned_to == u.id }}>{{ u.display_name }}</option>
                  {% endfor %}
                </select>
                <span class="quick-assign-spinner spinner-border spinner-border-sm text-secondary d-none" role="status"></span>
              </div>
              {% else %}
              {% if issue.assigned_user %}{{ issue.assigned_user.display_name }}
              {% else %}<span class="text-muted">—</span>{% endif %}
              {% endif %}
            </td>
            <td class="text-nowrap">
              {# Following badge + inline unfollow #}
              {% if is_following %}
              <span class="badge bg-primary me-1" title="You are following this issue">
                <i class="bi bi-bell-fill"></i> Following
              </span>
              <form method="post"
                    action="{{ url_for('issues.unfollow', issue_id=issue.id) }}"
                    class="d-inline"
                    title="Unfollow this issue">
                <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
                <input type="hidden" name="next" value="{{ url_for('issues.index', page=issues.page, issue_id=issue_id_filter, severity=severity_filter, status=status_filter, contract_id=contract_filter, facility_id=facility_filter, date_from=date_from_filter, date_to=date_to_filter) }}">
                <button type="submit" class="btn btn-sm btn-outline-primary p-0 px-1 me-1"
                        title="Unfollow">
                  <i class="bi bi-bell-slash" style="font-size:.75rem;"></i>
                </button>
              </form>
              {% endif %}

              <a href="{{ url_for('issues.view', issue_id=issue.id) }}"
                 class="btn btn-sm btn-outline-secondary">
                {% if current_user.role in ['admin','director'] or issue.assigned_to == current_user.id %}
                  <i class="bi bi-pencil"></i> Edit
                {% else %}
                  <i class="bi bi-eye"></i> View
                {% endif %}
              </a>
              {% if current_user.role in ['admin', 'director'] %}
              <form method="POST" action="{{ url_for('issues.delete', issue_id=issue.id) }}"
                    class="d-inline"
                    onsubmit="return confirm('Permanently delete Issue #{{ issue.id }}? This cannot be undone.');">
                <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
                <button type="submit" class="btn btn-sm btn-outline-danger"
                        title="Delete Issue #{{ issue.id }}">
                  <i class="bi bi-trash"></i>
                </button>
              </form>
              {% endif %}
            </td>
          </tr>
          {% endfor %}
        </tbody>
      </table>
    </div>

    {% if issues.pages > 1 %}
    <div class="d-flex justify-content-center py-3">
      <nav><ul class="pagination pagination-sm mb-0">
        {% for p in issues.iter_pages(left_edge=1,right_edge=1,left_current=2,right_current=2) %}
          {% if p %}
          <li class="page-item {{ 'active' if p == issues.page }}">
            <a class="page-link"
               href="{{ url_for('issues.index', page=p, issue_id=issue_id_filter, severity=severity_filter, status=status_filter, sla=sla_filter, contract_id=contract_filter, facility_id=facility_filter, date_from=date_from_filter, date_to=date_to_filter) }}">{{ p }}</a>
          </li>
          {% else %}<li class="page-item disabled"><span class="page-link">…</span></li>{% endif %}
        {% endfor %}
      </ul></nav>
    </div>
    {% endif %}

    {% else %}
    <div class="alert alert-info m-3"><i class="bi bi-info-circle"></i> No issues found.</div>
    {% endif %}
  </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
(function () {
  'use strict';
  var contractSel  = document.getElementById('filter_contract_id');
  var facilitySel  = document.getElementById('filter_facility_id');
  if (!contractSel || !facilitySel) return;

  var FACILITIES_URL = '{{ url_for("inspections.facilities_for_project", project_id=0) }}'.replace('/0', '/');

  contractSel.addEventListener('change', function () {
    var projectId = this.value;
    facilitySel.value = '';  // reset facility selection
    if (!projectId) {
      // No contract selected — restore all-facilities placeholder and submit
      // (server will return unfiltered facility list)
      facilitySel.innerHTML = '<option value="">All Facilities</option>';
      return;
    }
    facilitySel.disabled = true;
    facilitySel.innerHTML = '<option value="">Loading…</option>';
    fetch(FACILITIES_URL + projectId)
      .then(function (r) { return r.json(); })
      .then(function (data) {
        var html = '<option value="">All Facilities</option>';
        data.forEach(function (f) {
          html += '<option value="' + f.id + '">' + f.name + '</option>';
        });
        facilitySel.innerHTML = html;
        facilitySel.disabled  = false;
      })
      .catch(function () { facilitySel.disabled = false; });
  });
}());
</script>

{% if current_user.role in ['admin', 'director'] %}
<script>
(function () {
  'use strict';
  document.querySelectorAll('.quick-assign-select').forEach(function (sel) {
    sel.dataset.previous = sel.value;

    sel.addEventListener('change', function () {
      const wrap    = sel.closest('.quick-assign-wrap');
      const issueId = wrap.dataset.issueId;
      const spinner = wrap.querySelector('.quick-assign-spinner');
      const userId  = sel.value || null;

      sel.disabled = true;
      spinner.classList.remove('d-none');

      fetch('/issues/' + issueId + '/quick-assign', {
        method:  'POST',
        headers: {
          'Content-Type': 'application/json',
          'X-CSRFToken':  '{{ csrf_token() }}',
        },
        body: JSON.stringify({ user_id: userId ? parseInt(userId) : null }),
      })
      .then(function (r) { return r.json(); })
      .then(function (data) {
        if (!data.ok) {
          alert('Assignment failed: ' + (data.error || 'Unknown error'));
          sel.value = sel.dataset.previous;
        } else {
          sel.dataset.previous = sel.value;
        }
      })
      .catch(function () {
        alert('Network error — assignment not saved.');
        sel.value = sel.dataset.previous;
      })
      .finally(function () {
        sel.disabled = false;
        spinner.classList.add('d-none');
      });
    });
  });
}());
</script>
{% endif %}
{% endblock %}