{% extends 'base.html' %}
{% block title %}Planning{% endblock %}

{% block content %}
<div class="page-header d-flex justify-content-between align-items-center flex-wrap gap-2">
  <h1><i class="bi bi-calendar3 me-2" style="color:#ff6b35"></i>Planning d'impression</h1>
  <div class="d-flex gap-2">
    <a href="{{ url_for('working_schedule') }}" class="btn btn-sm btn-outline-secondary">
      <i class="bi bi-clock me-1"></i>Horaires
    </a>
    <a href="{{ url_for('calendar_blocks') }}" class="btn btn-sm btn-outline-secondary">
      <i class="bi bi-calendar-x me-1"></i>Indispos
    </a>
    <a href="{{ url_for('printers_page') }}" class="btn btn-sm btn-outline-secondary">
      <i class="bi bi-printer me-1"></i>Imprimantes
    </a>
    <a href="/calendar.ics" class="btn btn-sm btn-outline-info">
      <i class="bi bi-calendar-check me-1"></i>Export iCal
    </a>
  </div>
</div>

<div class="row g-3">
  <!-- Timeline -->
  <div class="col-12">
    <div class="card">
      <div class="card-header py-3 d-flex justify-content-between align-items-center">
        <span><i class="bi bi-bar-chart-gantt me-2"></i>Gantt — 14 prochains jours</span>
        <div class="d-flex gap-2 align-items-center">
          <button class="btn btn-sm btn-outline-secondary" onclick="shiftTimeline(-7)"><i class="bi bi-chevron-left"></i></button>
          <button class="btn btn-sm btn-outline-secondary" onclick="timeline.moveTo(new Date())">Aujourd'hui</button>
          <button class="btn btn-sm btn-outline-secondary" onclick="shiftTimeline(7)"><i class="bi bi-chevron-right"></i></button>
        </div>
      </div>
      <div class="card-body p-0">
        <div id="timeline" style="height:320px"></div>
      </div>
    </div>
  </div>

  <!-- Commandes non planifiées -->
  <div class="col-md-5">
    <div class="card">
      <div class="card-header py-3">
        <i class="bi bi-inbox me-2"></i>À planifier
        <span class="badge bg-secondary ms-1">{{ unscheduled|length }}</span>
      </div>
      <div class="card-body p-0">
        {% if unscheduled %}
        <div class="list-group list-group-flush">
          {% for j in unscheduled %}
          <div class="list-group-item py-2">
            <div class="d-flex justify-content-between align-items-start">
              <div>
                <div class="fw-semibold small">{{ j.name }}</div>
                <div class="text-muted" style="font-size:.75rem">
                  {{ j.print_time_s | fmt_time }}
                  {% if j.order_qty > 1 %} · ×{{ j.order_qty }} pièces{% endif %}
                  {% if j.client_name %} · {{ j.client_name }}{% endif %}
                </div>
              </div>
              <div class="d-flex gap-1">
                <button class="btn btn-sm btn-outline-success py-0"
                        onclick="suggestSlot({{ j.id }}, {{ j.print_time_s }}, '{{ j.name|replace("'","\\'")|truncate(30,true,"…") }}')">
                  <i class="bi bi-magic"></i>
                </button>
                <button class="btn btn-sm btn-outline-primary py-0"
                        onclick="openScheduleModal({{ j.id }}, {{ j.print_time_s }}, '{{ j.name|replace("'","\\'")|truncate(30,true,"…") }}')">
                  <i class="bi bi-plus-lg"></i>
                </button>
              </div>
            </div>
          </div>
          {% endfor %}
        </div>
        {% else %}
        <div class="text-center text-muted py-4 small">
          <i class="bi bi-check2-circle fs-3"></i>
          <p class="mt-2">Toutes les commandes sont planifiées.</p>
        </div>
        {% endif %}
      </div>
    </div>
  </div>

  <!-- Prochains créneaux -->
  <div class="col-md-7">
    <div class="card">
      <div class="card-header py-3"><i class="bi bi-list-ul me-2"></i>Créneaux planifiés</div>
      <div class="card-body p-0" id="slotsList">
        <div class="text-center text-muted py-3 small">Chargement…</div>
      </div>
    </div>
  </div>
</div>

<!-- Modal planification -->
<div class="modal fade" id="scheduleModal" tabindex="-1">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title"><i class="bi bi-calendar-plus me-2"></i>Planifier l'impression</h5>
        <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
      </div>
      <div class="modal-body">
        <input type="hidden" id="modalJobId">
        <input type="hidden" id="modalPrintTime">
        <div class="mb-3">
          <label class="form-label fw-semibold">Commande</label>
          <div id="modalJobName" class="form-control-plaintext fw-semibold text-primary"></div>
        </div>
        <div class="mb-3">
          <label class="form-label fw-semibold">Imprimante</label>
          <select id="modalPrinter" class="form-select">
            {% for p in printers %}
            {% if p.is_active %}
            <option value="{{ p.id }}">{{ p.name }}</option>
            {% endif %}
            {% endfor %}
          </select>
        </div>
        <div class="mb-3">
          <label class="form-label fw-semibold">Date et heure de lancement</label>
          <input type="datetime-local" id="modalStart" class="form-control">
        </div>
        <div id="modalSuggestion" class="alert alert-success py-2 small d-none">
          <i class="bi bi-magic me-1"></i><span id="modalSuggestionText"></span>
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Annuler</button>
        <button type="button" class="btn fw-bold" style="background:#ff6b35;color:#fff" onclick="saveSlot()">
          <i class="bi bi-save me-1"></i>Planifier
        </button>
      </div>
    </div>
  </div>
</div>

<!-- Modal statut slot -->
<div class="modal fade" id="slotModal" tabindex="-1">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title">Mettre à jour le créneau</h5>
        <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
      </div>
      <div class="modal-body">
        <input type="hidden" id="slotModalId">
        <p id="slotModalInfo" class="text-muted small"></p>
        <div class="mb-3">
          <label class="form-label fw-semibold">Statut</label>
          <select id="slotModalStatus" class="form-select">
            <option value="planned">Planifié</option>
            <option value="printing">En cours</option>
            <option value="done">Terminé ✓</option>
            <option value="failed">Échec ✗</option>
            <option value="cancelled">Annulé</option>
          </select>
        </div>
        <div class="mb-3" id="slotModalNoteGroup">
          <label class="form-label">Note (optionnel)</label>
          <input type="text" id="slotModalNote" class="form-control" placeholder="Ex: couche 45 — sous-extrusion">
        </div>
      </div>
      <div class="modal-footer d-flex justify-content-between">
        <button class="btn btn-sm btn-outline-danger" onclick="deleteSlot()">
          <i class="bi bi-trash"></i> Supprimer
        </button>
        <div>
          <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Annuler</button>
          <button type="button" class="btn btn-success ms-1" onclick="updateSlotStatus()">Enregistrer</button>
        </div>
      </div>
    </div>
  </div>
</div>
{% endblock %}

{% block scripts %}
<link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.css" rel="stylesheet">
<script src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.js"></script>
<script>
const STATUS_COLORS = {
  planned:   '#3b82f6',
  printing:  '#f59e0b',
  done:      '#22c55e',
  failed:    '#ef4444',
  cancelled: '#9ca3af',
};
const STATUS_LABELS = {
  planned: 'Planifié', printing: 'En cours', done: 'Terminé', failed: 'Échec', cancelled: 'Annulé'
};

let timeline, items, groups;

async function initTimeline() {
  const [slotsRes, availRes] = await Promise.all([
    fetch('/api/slots').then(r => r.json()),
    fetch('/api/availability').then(r => r.json()),
  ]);

  // Printers as groups
  const printerData = {{ printers | tojson }};
  groups = new vis.DataSet(printerData.map(p => ({
    id: p.id,
    content: `<span class="small fw-semibold">${p.name}</span>`,
    className: p.is_active ? '' : 'text-muted'
  })));

  // Background items (unavailable periods)
  const bgItems = availRes.map((a, i) => ({
    id: 'bg_' + i,
    start: a.start,
    end: a.end,
    type: 'background',
    className: a.type === 'off' ? 'bg-danger bg-opacity-10' : 'bg-secondary bg-opacity-10',
  }));

  // Print slots
  const slotItems = slotsRes.map(s => ({
    id: s.id,
    group: s.printer_id,
    start: s.planned_start,
    end: s.planned_end,
    content: `<span style="font-size:.7rem">${s.job_name}</span>`,
    title: `${s.job_name}${s.client_name ? ' — ' + s.client_name : ''}<br>${STATUS_LABELS[s.status] || s.status}`,
    style: `background:${STATUS_COLORS[s.status] || '#3b82f6'};border-color:${STATUS_COLORS[s.status] || '#3b82f6'};color:#fff;border-radius:4px`,
  }));

  items = new vis.DataSet([...bgItems, ...slotItems]);

  const now = new Date();
  timeline = new vis.Timeline(
    document.getElementById('timeline'),
    items, groups,
    {
      start: now,
      end: new Date(now.getTime() + 14 * 86400000),
      groupOrder: 'id',
      selectable: true,
      zoomMin: 3600000,
      zoomMax: 60 * 86400000,
      locale: 'fr',
    }
  );

  timeline.on('select', function(props) {
    if (!props.items.length) return;
    const id = props.items[0];
    if (typeof id === 'string' && id.startsWith('bg_')) return;
    const slot = slotsRes.find(s => s.id === id);
    if (!slot) return;
    openSlotModal(slot);
  });

  renderSlotsList(slotsRes);
}

function shiftTimeline(days) {
  const w = timeline.getWindow();
  const ms = days * 86400000;
  timeline.setWindow(new Date(w.start.getTime() + ms), new Date(w.end.getTime() + ms));
}

function renderSlotsList(slots) {
  const el = document.getElementById('slotsList');
  if (!slots.length) {
    el.innerHTML = '<div class="text-center text-muted py-4 small"><i class="bi bi-calendar fs-3"></i><p class="mt-2">Aucun créneau planifié.</p></div>';
    return;
  }
  const upcoming = slots.filter(s => s.status !== 'cancelled').slice(0, 15);
  el.innerHTML = `<table class="table table-sm table-hover mb-0">
    <thead class="table-light"><tr>
      <th class="small">Début</th><th class="small">Job</th>
      <th class="small">Machine</th><th class="small">Statut</th>
    </tr></thead>
    <tbody>
    ${upcoming.map(s => `<tr style="cursor:pointer" onclick="openSlotModal(${JSON.stringify(s).replace(/"/g,'&quot;')})">
      <td class="small">${formatDt(s.planned_start)}</td>
      <td class="small fw-semibold">${s.job_name}${s.client_name ? '<br><span class=\'text-muted fw-normal\'>' + s.client_name + '</span>' : ''}</td>
      <td class="small">${s.printer_name}</td>
      <td><span class="badge" style="background:${STATUS_COLORS[s.status]}">${STATUS_LABELS[s.status]||s.status}</span></td>
    </tr>`).join('')}
    </tbody></table>`;
}

function formatDt(iso) {
  if (!iso) return '—';
  const d = new Date(iso);
  return d.toLocaleDateString('fr-FR',{day:'2-digit',month:'2-digit'}) + ' ' +
         d.toLocaleTimeString('fr-FR',{hour:'2-digit',minute:'2-digit'});
}

function openScheduleModal(jobId, printTime, jobName) {
  document.getElementById('modalJobId').value = jobId;
  document.getElementById('modalPrintTime').value = printTime;
  document.getElementById('modalJobName').textContent = jobName;
  document.getElementById('modalSuggestion').classList.add('d-none');
  // Default: now rounded to next hour
  const now = new Date();
  now.setMinutes(0, 0, 0);
  now.setHours(now.getHours() + 1);
  document.getElementById('modalStart').value = now.toISOString().slice(0,16);
  new bootstrap.Modal(document.getElementById('scheduleModal')).show();
}

async function suggestSlot(jobId, printTime, jobName) {
  openScheduleModal(jobId, printTime, jobName);
  const res = await fetch('/api/suggest-slot', {
    method: 'POST',
    headers: {'Content-Type':'application/json'},
    body: JSON.stringify({print_time_s: printTime})
  }).then(r => r.json());
  if (res.planned_start) {
    document.getElementById('modalStart').value = res.planned_start.slice(0,16);
    // Find the printer option
    const sel = document.getElementById('modalPrinter');
    for (let opt of sel.options) {
      if (parseInt(opt.value) === res.printer_id) { sel.value = opt.value; break; }
    }
    document.getElementById('modalSuggestionText').textContent =
      `Suggestion : ${res.printer_name} — ${formatDt(res.planned_start)}`;
    document.getElementById('modalSuggestion').classList.remove('d-none');
  }
}

async function saveSlot() {
  const jobId    = parseInt(document.getElementById('modalJobId').value);
  const printer  = parseInt(document.getElementById('modalPrinter').value);
  const start    = document.getElementById('modalStart').value;
  const res = await fetch('/api/slots/new', {
    method: 'POST',
    headers: {'Content-Type':'application/json'},
    body: JSON.stringify({job_id: jobId, printer_id: printer, planned_start: start})
  }).then(r => r.json());
  if (res.ok) {
    bootstrap.Modal.getInstance(document.getElementById('scheduleModal')).hide();
    location.reload();
  } else {
    alert('Erreur : ' + (res.error || 'inconnu'));
  }
}

let currentSlot = null;
function openSlotModal(slot) {
  currentSlot = slot;
  document.getElementById('slotModalId').value = slot.id;
  document.getElementById('slotModalInfo').textContent =
    `${slot.job_name} · ${slot.printer_name} · ${formatDt(slot.planned_start)}`;
  document.getElementById('slotModalStatus').value = slot.status || 'planned';
  document.getElementById('slotModalNote').value = slot.failure_note || '';
  new bootstrap.Modal(document.getElementById('slotModal')).show();
}

async function updateSlotStatus() {
  const id     = document.getElementById('slotModalId').value;
  const status = document.getElementById('slotModalStatus').value;
  const note   = document.getElementById('slotModalNote').value;
  await fetch(`/api/slots/${id}/status`, {
    method:'POST', headers:{'Content-Type':'application/json'},
    body: JSON.stringify({status, note})
  });
  bootstrap.Modal.getInstance(document.getElementById('slotModal')).hide();
  location.reload();
}

async function deleteSlot() {
  if (!confirm('Supprimer ce créneau ?')) return;
  const id = document.getElementById('slotModalId').value;
  await fetch(`/api/slots/${id}/delete`, {method:'POST'});
  bootstrap.Modal.getInstance(document.getElementById('slotModal')).hide();
  location.reload();
}

initTimeline();
</script>
{% endblock %}