{% extends "base.html" %}

{% block title %}Edit Classroom - {{ classroom.code_display }}{% endblock %}

{% block content %}
<div class="container-fluid pt-5 mt-4">
    <!-- Header -->
    <div class="row mb-4 align-items-center">
        <div class="col-md-7">
            <nav aria-label="breadcrumb">
                <ol class="breadcrumb mb-1 small">
                    <li class="breadcrumb-item"><a href="/classrooms/list_classrooms">Classrooms</a></li>
                    <li class="breadcrumb-item"><a href="/classrooms/view_classroom">{{ classroom.code_display }}</a></li>
                    <li class="breadcrumb-item active">Edit</li>
                </ol>
            </nav>
            <h1 class="h3 mb-1">
                <i class="bi bi-pencil-square text-primary me-2"></i>Edit Classroom
            </h1>
            <p class="text-muted small mb-0">{{ classroom.location_display }}</p>
        </div>
        <div class="col-md-5 text-md-end mt-3 mt-md-0">
            <a href="/classrooms/view_classroom" class="btn btn-outline-secondary me-2">
                <i class="bi bi-eye me-1"></i>Ver Detalle
            </a>
            <a href="/classrooms/list_classrooms" class="btn btn-outline-secondary">
                <i class="bi bi-arrow-left me-1"></i>Volver al Listado
            </a>
        </div>
    </div>

    <div class="row justify-content-center">
        <div class="col-lg-8">
            <div class="card border-0 shadow-sm">
                <div class="card-header bg-body-tertiary border-0 py-3 d-flex justify-content-between align-items-center">
                    <h5 class="mb-0 h6 fw-bold">
                        <i class="bi bi-door-open text-primary me-2"></i>Classroom Information
                    </h5>
                    <span class="badge bg-secondary-subtle text-secondary font-monospace border">ID #{{ classroom.id }}</span>
                </div>
                <div class="card-body p-4">
                    <form method="POST" id="classroom-form" novalidate>
                        
                        <div class="row g-3 mb-3">
                            <!-- Edificio -->
                            <div class="col-md-6">
                                <label for="building_id" class="form-label fw-semibold">
                                    <i class="bi bi-buildings text-primary me-1"></i>Edificio / Sede <span class="text-danger">*</span>
                                </label>
                                {{ form.building_id(class="form-select", id="building_id") }}
                                {% if form.building_id.errors %}
                                    <div class="text-danger small mt-1">{{ form.building_id.errors[0] }}</div>
                                {% endif %}

                                <div id="newBuildingContainer" class="mt-2 p-2 rounded bg-body-tertiary border border-success-subtle" style="display: none;">
                                    <label for="new_building_name" class="form-label small fw-bold text-success mb-1">
                                        <i class="bi bi-plus-circle me-1"></i>Nombre del Nuevo Edificio:
                                    </label>
                                    {{ form.new_building_name(class="form-control form-control-sm", id="new_building_name", placeholder="ej. Pabellón III") }}
                                </div>
                            </div>
                            
                            <!-- Piso -->
                            <div class="col-md-3">
                                <label for="floor" class="form-label fw-semibold">
                                    <i class="bi bi-layers text-secondary me-1"></i>Piso / Nivel <span class="text-danger">*</span>
                                </label>
                                {{ form.floor(class="form-control", id="floor", list="floorSuggestions", placeholder="ej. PB, 1, 2, 4°P") }}
                                <datalist id="floorSuggestions">
                                    <!-- sugerencias dinámicas -->
                                </datalist>
                                <div class="form-text small text-muted">Sugerido o nuevo</div>
                                {% if form.floor.errors %}
                                    <div class="text-danger small mt-1">{{ form.floor.errors[0] }}</div>
                                {% endif %}
                            </div>

                            <!-- Aula -->
                            <div class="col-md-3">
                                <label for="room_number" class="form-label fw-semibold">
                                    <i class="bi bi-door-open text-info me-1"></i>Aula / Sala <span class="text-danger">*</span>
                                </label>
                                {{ form.room_number(class="form-control", id="room_number", placeholder="ej. Aula 304, Lab 1") }}
                                {% if form.room_number.errors %}
                                    <div class="text-danger small mt-1">{{ form.room_number.errors[0] }}</div>
                                {% endif %}
                            </div>
                        </div>
                        
                        <div class="row g-3 mb-3">
                            <div class="col-md-6">
                                <div class="d-flex justify-content-between align-items-center mb-1">
                                    <label for="capacityInput" class="form-label fw-semibold mb-0">Capacidad de Alumnos <span class="text-danger">*</span></label>
                                    <button type="button" class="btn btn-sm btn-outline-primary py-0 px-2" id="btnInfinity" style="font-size: 0.8rem;" title="Asignar capacidad ilimitada">
                                        <i class="bi bi-infinity me-1"></i>Ilimitada (∞)
                                    </button>
                                </div>
                                <div class="input-group">
                                    {{ form.capacity(class="form-control" + (" is-invalid" if form.capacity.errors else ""), id="capacityInput", placeholder="ej. 35 o ∞") }}
                                    <span class="input-group-text bg-body-tertiary text-muted font-monospace"><i class="bi bi-people"></i></span>
                                </div>
                                <div class="form-text small text-muted mt-1">
                                    <i class="bi bi-info-circle text-info me-1"></i>Para aulas virtuales o eventos sin aforo restringido, ingrese <strong>∞</strong> o <strong>0</strong>.
                                </div>
                                {% if form.capacity.errors %}
                                    <div class="invalid-feedback d-block">{{ form.capacity.errors[0] }}</div>
                                {% endif %}
                            </div>
                            
                            <div class="col-md-6 d-flex align-items-center pt-md-3">
                                <div class="form-check form-switch pt-2">
                                    {{ form.is_active(class="form-check-input", id="is_active") }}
                                    <label class="form-check-label fw-semibold" for="is_active">
                                        Aula Habilitada para Reservas
                                    </label>
                                </div>
                            </div>
                        </div>
                        
                        <div class="mb-4">
                            {{ form.description.label(class="form-label fw-semibold") }}
                            {{ form.description(class="form-control" + (" is-invalid" if form.description.errors else ""), rows="3", placeholder="Opcional: Detalles adicionales del equipamiento...") }}
                            {% if form.description.errors %}
                                <div class="invalid-feedback">{{ form.description.errors[0] }}</div>
                            {% endif %}
                        </div>

                        <!-- Preview Card -->
                        <div class="card bg-body-tertiary border-0 shadow-xs mb-4">
                            <div class="card-body py-3 px-4">
                                <h6 class="card-subtitle mb-2 text-muted small fw-bold">
                                    <i class="bi bi-eye me-1"></i>Vista Previa de Ubicación
                                </h6>
                                <div class="row g-2">
                                    <div class="col-md-4">
                                        <small class="text-muted d-block">🏢 Edificio</small>
                                        <strong id="preview-building" class="text-primary">{{ classroom.building_name }}</strong>
                                    </div>
                                    <div class="col-md-4">
                                        <small class="text-muted d-block">🪜 Piso</small>
                                        <strong id="preview-floor" class="text-secondary">{{ classroom.floor_display }}</strong>
                                    </div>
                                    <div class="col-md-4">
                                        <small class="text-muted d-block">🚪 Aula / Código</small>
                                        <strong id="preview-room" class="text-success">{{ classroom.code }}</strong>
                                    </div>
                                </div>
                            </div>
                        </div>
                        
                        <div class="d-flex justify-content-between">
                            <a href="/classrooms/view_classroom" class="btn btn-outline-secondary">
                                Cancelar
                            </a>
                            <button type="submit" class="btn btn-primary px-4">
                                <i class="bi bi-check-circle me-1"></i>Guardar Cambios
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
document.addEventListener('DOMContentLoaded', function() {
    var buildingFloors = {{ building_floors|tojson }};
    
    var buildingSelect = document.getElementById('building_id');
    var newBuildingContainer = document.getElementById('newBuildingContainer');
    var newBuildingNameInput = document.getElementById('new_building_name');
    var floorInput = document.getElementById('floor');
    var floorDatalist = document.getElementById('floorSuggestions');
    var roomInput = document.getElementById('room_number');
    
    var previewBuilding = document.getElementById('preview-building');
    var previewFloor = document.getElementById('preview-floor');
    var previewRoom = document.getElementById('preview-room');

    function updateFloorsDatalist(bId) {
        if (!floorDatalist) return;
        floorDatalist.innerHTML = '';
        var floors = buildingFloors[bId] || [];
        floors.forEach(function(f) {
            var opt = document.createElement('option');
            opt.value = f;
            opt.textContent = (f === '0' || f === 'PB') ? 'Planta Baja' : 'Piso ' + f;
            floorDatalist.appendChild(opt);
        });
    }

    function updatePreview() {
        var bText = '-';
        if (buildingSelect) {
            if (buildingSelect.value === '__new__') {
                bText = newBuildingNameInput.value.trim() || '{{ _("Nuevo Edificio") }}';
            } else if (buildingSelect.selectedIndex >= 0) {
                bText = buildingSelect.options[buildingSelect.selectedIndex].text;
            }
        }
        var fText = floorInput ? (floorInput.value.trim() || '-') : '-';
        var rText = roomInput ? (roomInput.value.trim() || '-') : '-';

        if (previewBuilding) previewBuilding.textContent = bText;
        if (previewFloor) previewFloor.textContent = (fText === '0' || fText.toUpperCase() === 'PB') ? 'Planta Baja' : fText;
        if (previewRoom) previewRoom.textContent = rText;
    }

    if (buildingSelect) {
        buildingSelect.addEventListener('change', function() {
            if (this.value === '__new__') {
                newBuildingContainer.style.display = 'block';
                if (newBuildingNameInput) newBuildingNameInput.focus();
            } else {
                newBuildingContainer.style.display = 'none';
                updateFloorsDatalist(this.value);
            }
            updatePreview();
        });
        if (buildingSelect.value === '__new__') {
            newBuildingContainer.style.display = 'block';
        } else if (buildingSelect.value) {
            updateFloorsDatalist(buildingSelect.value);
        }
    }

    if (newBuildingNameInput) newBuildingNameInput.addEventListener('input', updatePreview);
    if (floorInput) floorInput.addEventListener('input', updatePreview);
    if (roomInput) roomInput.addEventListener('input', updatePreview);

    updatePreview();

    var btnInf = document.getElementById('btnInfinity');
    var capInput = document.getElementById('capacityInput');
    if (btnInf && capInput) {
        btnInf.addEventListener('click', function() {
            capInput.value = '∞';
            capInput.focus();
        });
    }
});
</script>
{% endblock %}