{% extends "base.html" %}

{% block title %}Gestión de Carreras - 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-mortarboard text-primary me-2"></i>Gestión de Carreras y Titulaciones
            </h1>
            <p class="text-muted mb-0 small">
                Administración de programas académicos, tecnicaturas, licenciaturas y planes de estudio.
            </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="#modalAddCareer">
                <i class="bi bi-plus-lg me-1"></i>Nueva Carrera
            </button>
            {% endif %}
            <a href="/admin/subjects_list" class="btn btn-outline-secondary">
                <i class="bi bi-book me-1"></i>Ver Asignaturas
            </a>
        </div>
    </div>

    <!-- Notification Alerts -->
    {% if msg == 'created' %}
    <div class="alert alert-success alert-dismissible fade show mb-4 shadow-sm" role="alert">
        <i class="bi bi-check-circle-fill me-2"></i>La carrera ha sido registrada exitosamente.
        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
    </div>
    {% elif msg == 'updated' %}
    <div class="alert alert-success alert-dismissible fade show mb-4 shadow-sm" role="alert">
        <i class="bi bi-check-circle-fill me-2"></i>Los datos de la carrera se actualizaron correctamente.
        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
    </div>
    {% elif msg == 'deleted' %}
    <div class="alert alert-success alert-dismissible fade show mb-4 shadow-sm" role="alert">
        <i class="bi bi-check-circle-fill me-2"></i>La carrera ha sido eliminada permanentemente del sistema.
        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
    </div>
    {% elif error == 'has_subjects' %}
    <div class="alert alert-warning alert-dismissible fade show mb-4 shadow-sm" role="alert">
        <i class="bi bi-exclamation-triangle-fill me-2"></i>No es posible eliminar esta carrera porque tiene asignaturas vinculadas. Debe reasignar o eliminar primero sus materias.
        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
    </div>
    {% elif error == 'conflict' %}
    <div class="alert alert-danger alert-dismissible fade show mb-4 shadow-sm" role="alert">
        <i class="bi bi-x-circle-fill me-2"></i>Ya existe una carrera registrada con ese nombre o código institucional.
        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
    </div>
    {% elif error %}
    <div class="alert alert-danger alert-dismissible fade show mb-4 shadow-sm" role="alert">
        <i class="bi bi-x-circle-fill me-2"></i>Ocurrió un error al procesar la solicitud en el catálogo de carreras.
        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
    </div>
    {% endif %}

    <!-- Search & Filter 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">
                <div class="col-md-6">
                    <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="Buscar carrera por nombre, código o descripción..." 
                               value="{{ search }}">
                    </div>
                </div>
                <div class="col-md-6 text-md-end">
                    <button type="submit" class="btn btn-sm btn-primary me-1">
                        <i class="bi bi-funnel me-1"></i>Filtrar
                    </button>
                    <a href="/admin/careers_list" class="btn btn-sm btn-outline-secondary">
                        <i class="bi bi-x-circle me-1"></i>Limpiar
                    </a>
                </div>
            </form>
        </div>
    </div>

    <!-- Careers 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>Carrera / Titulación</th>
                        <th>Código</th>
                        <th>Asignaturas</th>
                        <th>Comisiones Activas</th>
                        <th>Descripción</th>
                        {% if can_edit %}
                        <th class="text-end">Acciones</th>
                        {% endif %}
                    </tr>
                </thead>
                <tbody>
                    {% for career in careers %}
                    {% set c_stat = stats[career.id] or {'subjects_count': 0, 'commissions_count': 0} %}
                    <tr>
                        <td>
                            <div class="d-flex align-items-center">
                                <div class="rounded-circle p-2 bg-primary-subtle text-primary me-3">
                                    <i class="bi bi-mortarboard-fill"></i>
                                </div>
                                <div>
                                    <span class="fw-bold text-body">{{ career.name }}</span>
                                </div>
                            </div>
                        </td>
                        <td>
                            {% if career.code %}
                            <span class="badge font-monospace bg-secondary-subtle text-secondary border">{{ career.code }}</span>
                            {% else %}
                            <span class="text-muted small">-</span>
                            {% endif %}
                        </td>
                        <td>
                            <a href="/admin/subjects_list" class="badge bg-info-subtle text-info border text-decoration-none">
                                <i class="bi bi-book me-1"></i>{{ c_stat.subjects_count }} asignaturas
                            </a>
                        </td>
                        <td>
                            <span class="badge bg-primary-subtle text-primary border">
                                <i class="bi bi-diagram-3 me-1"></i>{{ c_stat.commissions_count }} comisiones
                            </span>
                        </td>
                        <td>
                            <span class="small text-muted text-truncate d-inline-block" style="max-width: 250px;">
                                {{ career.description or '-' }}
                            </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="#modalEditCareer{{ career.id }}" 
                                        title="Editar Carrera">
                                    <i class="bi bi-pencil"></i>
                                </button>
                                {% if c_stat.subjects_count == 0 %}
                                <form method="POST" action="/admin/career_delete" class="d-inline"
                                      onsubmit="return confirm('¿Confirma que desea eliminar esta carrera permanentemente?');">
                                    <input type="hidden" name="id" value="{{ career.id }}">
                                    <button type="submit" class="btn btn-outline-danger py-0 px-2" title="Eliminar Carrera">
                                        <i class="bi bi-trash"></i>
                                    </button>
                                </form>
                                {% else %}
                                <button type="button" class="btn btn-outline-secondary py-0 px-2 opacity-50" 
                                        disabled title="No se puede eliminar: posee {{ c_stat.subjects_count }} asignatura(s) vinculada(s)">
                                    <i class="bi bi-trash"></i>
                                </button>
                                {% endif %}
                            </div>

                            <!-- Modal Editar Carrera -->
                            <div class="modal fade text-start" id="modalEditCareer{{ career.id }}" tabindex="-1" aria-hidden="true">
                                <div class="modal-dialog">
                                    <div class="modal-content">
                                        <form method="POST" action="/admin/career_edit">
                                            <input type="hidden" name="id" value="{{ career.id }}">
                                            <div class="modal-header">
                                                <h5 class="modal-title h6 fw-bold">
                                                    <i class="bi bi-pencil-square text-primary me-2"></i>Editar Carrera
                                                </h5>
                                                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                                            </div>
                                            <div class="modal-body">
                                                <div class="mb-3">
                                                    <label class="form-label small fw-semibold">Nombre de la Carrera *</label>
                                                    <input type="text" name="name" class="form-control" value="{{ career.name }}" required>
                                                </div>
                                                <div class="mb-3">
                                                    <label class="form-label small fw-semibold">Código / Sigla</label>
                                                    <input type="text" name="code" class="form-control" value="{{ career.code or '' }}" placeholder="ej. LIC-SIS, PUEP">
                                                </div>
                                                <div class="mb-3">
                                                    <label class="form-label small fw-semibold">Descripción</label>
                                                    <textarea name="description" class="form-control" rows="3">{{ career.description or '' }}</textarea>
                                                </div>
                                            </div>
                                            <div class="modal-footer">
                                                <button type="button" class="btn btn-sm btn-secondary" data-bs-dismiss="modal">Cancelar</button>
                                                <button type="submit" class="btn btn-sm btn-primary">Guardar Cambios</button>
                                            </div>
                                        </form>
                                    </div>
                                </div>
                            </div>
                        </td>
                        {% endif %}
                    </tr>
                    {% else %}
                    <tr>
                        <td colspan="6" class="text-center py-5 text-muted">
                            <i class="bi bi-mortarboard fs-1 d-block mb-2"></i>
                            No se encontraron carreras registradas.
                        </td>
                    </tr>
                    {% endfor %}
                </tbody>
            </table>
        </div>
    </div>
</div>

<!-- Modal Nueva Carrera -->
{% if can_edit %}
<div class="modal fade" id="modalAddCareer" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <form method="POST" action="/admin/career_add">
                <div class="modal-header">
                    <h5 class="modal-title h6 fw-bold">
                        <i class="bi bi-mortarboard text-primary me-2"></i>Nueva Carrera / Titulación
                    </h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                </div>
                <div class="modal-body">
                    <div class="mb-3">
                        <label class="form-label small fw-semibold">Nombre de la Carrera *</label>
                        <input type="text" name="name" class="form-control" placeholder="ej. Licenciatura en Tecnologías Digitales" required>
                    </div>
                    <div class="mb-3">
                        <label class="form-label small fw-semibold">Código / Sigla</label>
                        <input type="text" name="code" class="form-control" placeholder="ej. TEC-DIG">
                    </div>
                    <div class="mb-3">
                        <label class="form-label small fw-semibold">Descripción</label>
                        <textarea name="description" class="form-control" rows="3" placeholder="Objetivos y alcance de la titulación..."></textarea>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-sm btn-secondary" data-bs-dismiss="modal">Cancelar</button>
                    <button type="submit" class="btn btn-sm btn-primary">Crear Carrera</button>
                </div>
            </form>
        </div>
    </div>
</div>
{% endif %}
{% endblock %}