{% extends "base.html" %}

{% block title %}{% trans %}Gestión de Asignaturas{% endtrans %} - Edu-Space Admin{% endblock %}

{% block content %}
<div class="container-fluid pt-5 mt-4">
    <!-- Header -->
    <div class="d-flex flex-column flex-md-row justify-content-between align-items-md-center gap-3 mb-4">
        <div>
            <h1 class="h3 fw-bold mb-1">
                <i class="bi bi-book text-primary me-2"></i>{% trans %}Gestión de Asignaturas y Materias{% endtrans %}
            </h1>
            <p class="text-muted mb-0 small">
                {% trans %}Catálogo institucional de asignaturas, códigos, créditos académicos y carreras vinculadas.{% endtrans %}
            </p>
        </div>
        <div class="d-flex gap-2">
            {% if can_edit %}
            <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#modalAddSubject">
                <i class="bi bi-plus-lg me-1"></i>{% trans %}Nueva Asignatura{% endtrans %}
            </button>
            {% endif %}
            <a href="{{ url_for('schedule.commissions_view') }}" class="btn btn-outline-secondary">
                <i class="bi bi-diagram-3 me-1"></i>{% trans %}Ver Comisiones{% endtrans %}
            </a>
        </div>
    </div>

    <!-- Filters Bar -->
    <div class="card border-0 shadow-sm mb-4">
        <div class="card-body py-2">
            <form method="GET" class="row g-2 align-items-center">
                <!-- Buscador -->
                <div class="col-md-4">
                    <div class="input-group input-group-sm">
                        <span class="input-group-text bg-body-tertiary"><i class="bi bi-search"></i></span>
                        <input type="text" name="search" class="form-control" 
                               placeholder="{% trans %}Buscar por código, nombre o departamento...{% endtrans %}" 
                               value="{{ search }}">
                    </div>
                </div>

                <!-- Filtro Carrera -->
                <div class="col-md-4">
                    <div class="input-group input-group-sm">
                        <span class="input-group-text bg-body-tertiary"><i class="bi bi-mortarboard text-primary"></i></span>
                        <select name="career_id" class="form-select form-select-sm" onchange="this.form.submit()">
                            <option value="">{% trans %}Todas las carreras{% endtrans %}</option>
                            {% for c in careers %}
                                <option value="{{ c.id }}" {% if career_filter == c.id %}selected{% endif %}>{{ c.name }}</option>
                            {% endfor %}
                        </select>
                    </div>
                </div>

                <!-- Filtro Estado -->
                <div class="col-md-2">
                    <select name="active" class="form-select form-select-sm" onchange="this.form.submit()">
                        <option value="">{% trans %}Todos los estados{% endtrans %}</option>
                        <option value="true" {% if active_filter == 'true' %}selected{% endif %}>{% trans %}Solo activas{% endtrans %}</option>
                        <option value="false" {% if active_filter == 'false' %}selected{% endif %}>{% trans %}Solo inactivas{% endtrans %}</option>
                    </select>
                </div>

                <div class="col-md-2 text-md-end">
                    <button type="submit" class="btn btn-sm btn-primary me-1">
                        <i class="bi bi-funnel me-1"></i>{% trans %}Filtrar{% endtrans %}
                    </button>
                    <a href="{{ url_for('admin.subjects_list') }}" class="btn btn-sm btn-outline-secondary">
                        <i class="bi bi-x-circle me-1"></i>{% trans %}Limpiar{% endtrans %}
                    </a>
                </div>
            </form>
        </div>
    </div>

    <!-- Subjects Table -->
    <div class="card border-0 shadow-sm">
        <div class="table-responsive">
            <table class="table table-hover align-middle mb-0">
                <thead class="table-light">
                    <tr>
                        <th>{% trans %}Código{% endtrans %}</th>
                        <th>{% trans %}Nombre de la Asignatura{% endtrans %}</th>
                        <th>{% trans %}Carrera{% endtrans %}</th>
                        <th>{% trans %}Departamento{% endtrans %}</th>
                        <th>{% trans %}Créditos{% endtrans %}</th>
                        <th>{% trans %}Comisiones{% endtrans %}</th>
                        <th>{% trans %}Estado{% endtrans %}</th>
                        {% if can_edit %}
                        <th class="text-end">{% trans %}Acciones{% endtrans %}</th>
                        {% endif %}
                    </tr>
                </thead>
                <tbody>
                    {% for s in subjects %}
                    <tr>
                        <td>
                            <span class="badge font-monospace bg-primary-subtle text-primary border">{{ s.code }}</span>
                        </td>
                        <td>
                            <span class="fw-bold text-body">{{ s.name }}</span>
                            {% if s.description %}
                            <small class="text-muted d-block text-truncate" style="max-width: 300px;">{{ s.description }}</small>
                            {% endif %}
                        </td>
                        <td>
                            {% if s.career_obj %}
                            <span class="badge bg-secondary-subtle text-secondary border">
                                <i class="bi bi-mortarboard me-1"></i>{{ s.career_obj.name }}
                            </span>
                            {% else %}
                            <span class="text-muted small">General</span>
                            {% endif %}
                        </td>
                        <td>
                            <span class="small text-muted">{{ s.department or '-' }}</span>
                        </td>
                        <td>
                            <span class="badge bg-light text-dark border">{{ s.credits }} cr.</span>
                        </td>
                        <td>
                            <span class="badge bg-info-subtle text-info border">
                                <i class="bi bi-diagram-3 me-1"></i>{{ s.commissions|length if s.commissions else 0 }}
                            </span>
                        </td>
                        <td>
                            <span class="badge rounded-pill {% if s.is_active %}bg-success-subtle text-success border border-success-subtle{% else %}bg-secondary-subtle text-secondary border{% endif %}">
                                {% if s.is_active %}{% trans %}Activa{% endtrans %}{% else %}{% trans %}Inactiva{% endtrans %}{% endif %}
                            </span>
                        </td>
                        {% if can_edit %}
                        <td class="text-end">
                            <div class="btn-group btn-group-sm">
                                <button type="button" class="btn btn-outline-secondary py-0 px-2" 
                                        data-bs-toggle="modal" data-bs-target="#modalEditSubject{{ s.id }}" 
                                        title="{% trans %}Editar Asignatura{% endtrans %}">
                                    <i class="bi bi-pencil"></i>
                                </button>
                                <form method="POST" action="{{ url_for('admin.subject_toggle', id=s.id) }}" class="d-inline">
                                    <button type="submit" class="btn btn-outline-warning py-0 px-2" 
                                            title="{% if s.is_active %}{% trans %}Desactivar{% endtrans %}{% else %}{% trans %}Activar{% endtrans %}{% endif %}">
                                        <i class="bi {% if s.is_active %}bi-pause{% else %}bi-play{% endif %}"></i>
                                    </button>
                                </form>
                            </div>

                            <!-- Modal Editar Asignatura -->
                            <div class="modal fade text-start" id="modalEditSubject{{ s.id }}" tabindex="-1" aria-hidden="true">
                                <div class="modal-dialog">
                                    <div class="modal-content">
                                        <form method="POST" action="{{ url_for('admin.subject_edit', id=s.id) }}">
                                            <div class="modal-header">
                                                <h5 class="modal-title h6 fw-bold">
                                                    <i class="bi bi-pencil-square text-primary me-2"></i>{% trans %}Editar Asignatura{% endtrans %}
                                                </h5>
                                                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                                            </div>
                                            <div class="modal-body">
                                                <div class="row g-2 mb-3">
                                                    <div class="col-md-5">
                                                        <label class="form-label small fw-semibold">{% trans %}Código{% endtrans %} *</label>
                                                        <input type="text" name="code" class="form-control form-control-sm font-monospace" value="{{ s.code }}" required>
                                                    </div>
                                                    <div class="col-md-7">
                                                        <label class="form-label small fw-semibold">{% trans %}Créditos{% endtrans %}</label>
                                                        <input type="number" name="credits" class="form-control form-control-sm" value="{{ s.credits }}" min="1" max="20">
                                                    </div>
                                                </div>
                                                <div class="mb-3">
                                                    <label class="form-label small fw-semibold">{% trans %}Nombre de la Asignatura{% endtrans %} *</label>
                                                    <input type="text" name="name" class="form-control form-control-sm" value="{{ s.name }}" required>
                                                </div>
                                                <div class="mb-3">
                                                    <label class="form-label small fw-semibold">{% trans %}Carrera Vinculada{% endtrans %}</label>
                                                    <select name="career_id" class="form-select form-select-sm">
                                                        <option value="">{% trans %}Sin carrera específica (General){% endtrans %}</option>
                                                        {% for c in careers %}
                                                            <option value="{{ c.id }}" {% if s.career_id == c.id %}selected{% endif %}>{{ c.name }}</option>
                                                        {% endfor %}
                                                    </select>
                                                </div>
                                                <div class="mb-3">
                                                    <label class="form-label small fw-semibold">{% trans %}Departamento / Área{% endtrans %}</label>
                                                    <input type="text" name="department" class="form-control form-control-sm" value="{{ s.department or '' }}">
                                                </div>
                                                <div class="mb-3">
                                                    <label class="form-label small fw-semibold">{% trans %}Descripción / Objetivos{% endtrans %}</label>
                                                    <textarea name="description" class="form-control form-control-sm" rows="2">{{ s.description or '' }}</textarea>
                                                </div>
                                                <div class="form-check">
                                                    <input class="form-check-input" type="checkbox" name="is_active" id="activeSubj{{ s.id }}" {% if s.is_active %}checked{% endif %}>
                                                    <label class="form-check-label small" for="activeSubj{{ s.id }}">{% trans %}Asignatura Activa{% endtrans %}</label>
                                                </div>
                                            </div>
                                            <div class="modal-footer">
                                                <button type="button" class="btn btn-sm btn-secondary" data-bs-dismiss="modal">{% trans %}Cancelar{% endtrans %}</button>
                                                <button type="submit" class="btn btn-sm btn-primary">{% trans %}Guardar Cambios{% endtrans %}</button>
                                            </div>
                                        </form>
                                    </div>
                                </div>
                            </div>
                        </td>
                        {% endif %}
                    </tr>
                    {% else %}
                    <tr>
                        <td colspan="8" class="text-center py-5 text-muted">
                            <i class="bi bi-book fs-1 d-block mb-2"></i>
                            {% trans %}No se encontraron asignaturas con los criterios indicados.{% endtrans %}
                        </td>
                    </tr>
                    {% endfor %}
                </tbody>
            </table>
        </div>

        <!-- Paginación -->
        {% if pagination.pages > 1 %}
        <div class="card-footer bg-body-tertiary border-0 py-2">
            <nav aria-label="Subjects pagination">
                <ul class="pagination pagination-sm justify-content-center mb-0">
                    {% if pagination.has_prev %}
                    <li class="page-item">
                        <a class="page-link" href="{{ url_for('admin.subjects_list', page=pagination.prev_num, search=search, career_id=career_filter, active=active_filter) }}">{% trans %}Anterior{% endtrans %}</a>
                    </li>
                    {% endif %}
                    
                    {% for p in pagination.iter_pages(left_edge=2, right_edge=2, left_current=2, right_current=2) %}
                        {% if p %}
                            <li class="page-item {% if p == pagination.page %}active{% endif %}">
                                <a class="page-link" href="{{ url_for('admin.subjects_list', page=p, search=search, career_id=career_filter, active=active_filter) }}">{{ p }}</a>
                            </li>
                        {% else %}
                            <li class="page-item disabled"><span class="page-link">…</span></li>
                        {% endif %}
                    {% endfor %}
                    
                    {% if pagination.has_next %}
                    <li class="page-item">
                        <a class="page-link" href="{{ url_for('admin.subjects_list', page=pagination.next_num, search=search, career_id=career_filter, active=active_filter) }}">{% trans %}Siguiente{% endtrans %}</a>
                    </li>
                    {% endif %}
                </ul>
            </nav>
        </div>
        {% endif %}
    </div>
</div>

<!-- Modal Nueva Asignatura -->
{% if can_edit %}
<div class="modal fade" id="modalAddSubject" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <form method="POST" action="{{ url_for('admin.subject_add') }}">
                <div class="modal-header">
                    <h5 class="modal-title h6 fw-bold">
                        <i class="bi bi-book text-primary me-2"></i>{% trans %}Nueva Asignatura{% endtrans %}
                    </h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                </div>
                <div class="modal-body">
                    <div class="row g-2 mb-3">
                        <div class="col-md-5">
                            <label class="form-label small fw-semibold">{% trans %}Código{% endtrans %} *</label>
                            <input type="text" name="code" class="form-control form-control-sm font-monospace" placeholder="ej. ASIG0015" required>
                        </div>
                        <div class="col-md-7">
                            <label class="form-label small fw-semibold">{% trans %}Créditos{% endtrans %}</label>
                            <input type="number" name="credits" class="form-control form-control-sm" value="4" min="1" max="20">
                        </div>
                    </div>
                    <div class="mb-3">
                        <label class="form-label small fw-semibold">{% trans %}Nombre de la Asignatura{% endtrans %} *</label>
                        <input type="text" name="name" class="form-control form-control-sm" placeholder="ej. Álgebra Lineal" required>
                    </div>
                    <div class="mb-3">
                        <label class="form-label small fw-semibold">{% trans %}Carrera Vinculada{% endtrans %}</label>
                        <select name="career_id" class="form-select form-select-sm">
                            <option value="">{% trans %}Sin carrera específica (General){% endtrans %}</option>
                            {% for c in careers %}
                                <option value="{{ c.id }}">{{ c.name }}</option>
                            {% endfor %}
                        </select>
                    </div>
                    <div class="mb-3">
                        <label class="form-label small fw-semibold">{% trans %}Departamento / Área{% endtrans %}</label>
                        <input type="text" name="department" class="form-control form-control-sm" placeholder="ej. Ciencias Exactas, Informática">
                    </div>
                    <div class="mb-3">
                        <label class="form-label small fw-semibold">{% trans %}Descripción{% endtrans %}</label>
                        <textarea name="description" class="form-control form-control-sm" rows="2" placeholder="Programa de la materia..."></textarea>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-sm btn-secondary" data-bs-dismiss="modal">{% trans %}Cancelar{% endtrans %}</button>
                    <button type="submit" class="btn btn-sm btn-primary">{% trans %}Crear Asignatura{% endtrans %}</button>
                </div>
            </form>
        </div>
    </div>
</div>
{% endif %}
{% endblock %}