{% extends "base.html" %}

{% block title %}{{ gettext('Import Students from CSV') }}{% endblock %}

{% block content %}
<div class="max-w-4xl mx-auto space-y-6">
    {# Page Header #}
    <div>
        <h1 class="text-2xl font-bold text-gray-900">{{ gettext('Import Students from CSV') }}</h1>
        <p class="text-gray-600 mt-1">{{ gettext('Bulk import student data from a CSV file') }}</p>
    </div>

    {# Instructions Card #}
    <div class="bg-white rounded-lg shadow overflow-hidden">
        <div class="bg-cobalt-600 px-6 py-4">
            <h2 class="text-lg font-semibold text-white">{{ gettext('Instructions') }}</h2>
        </div>
        <div class="p-6">
            <ul class="space-y-2 text-gray-700">
                <li class="flex items-start gap-2">
                    <svg class="w-5 h-5 text-cobalt-600 mt-0.5 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
                    </svg>
                    {{ gettext('Upload a CSV file with student data') }}
                </li>
                <li class="flex items-start gap-2">
                    <svg class="w-5 h-5 text-cobalt-600 mt-0.5 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
                    </svg>
                    {{ gettext('The file should be encoded in ISO-8859-1 (Latin-1)') }}
                </li>
                <li class="flex items-start gap-2">
                    <svg class="w-5 h-5 text-cobalt-600 mt-0.5 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
                    </svg>
                    {{ gettext('Required columns: Apellidos, Nombre (will be split), C.I.A.L., Fecha Nac.') }}
                </li>
                <li class="flex items-start gap-2">
                    <svg class="w-5 h-5 text-cobalt-600 mt-0.5 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
                    </svg>
                    {{ gettext('Optional columns: NIF/NIE/Pas., Registro, Expediente, Sexo, Grupo') }}
                </li>
                <li class="flex items-start gap-2">
                    <svg class="w-5 h-5 text-cobalt-600 mt-0.5 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
                    </svg>
                    {{ gettext('The "Estudio" column will be discarded') }}
                </li>
                <li class="flex items-start gap-2">
                    <svg class="w-5 h-5 text-cobalt-600 mt-0.5 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
                    </svg>
                    {{ gettext('Duplicate students (by CIAL code or NIF/NIE) will be skipped') }}
                </li>
            </ul>
            <div class="mt-4 p-3 bg-gray-50 rounded-lg">
                <p class="text-sm text-gray-600">
                    {{ gettext('Example CSV format:') }}<br>
                    <code class="text-xs bg-gray-200 px-2 py-1 rounded">Nº Or.,"Apellidos, Nombre",Fecha Nac.,C.I.A.L.,NIF/NIE/Pas.,Registro,Expediente,Sexo,Grupo,Estudio</code>
                </p>
            </div>
        </div>
    </div>

    {# Upload Form #}
    <div class="bg-white rounded-lg shadow overflow-hidden">
        <div class="bg-green-600 px-6 py-4">
            <h2 class="text-lg font-semibold text-white">{{ gettext('Upload CSV File') }}</h2>
        </div>
        <div class="p-6">
            <form method="POST" action="{{ url_for('import_students') }}" enctype="multipart/form-data" class="space-y-4">
                <div>
                    <label for="csv_file" class="block text-sm font-medium text-gray-700 mb-1">{{ gettext('CSV File') }} *</label>
                    <input type="file" id="csv_file" name="csv_file" accept=".csv" required
                           class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-cobalt-500 focus:border-cobalt-500">
                    <p class="mt-1 text-sm text-gray-500">{{ gettext('Select a CSV file to upload') }}</p>
                </div>
                
                <div class="flex justify-end gap-3">
                    <a href="{{ url_for('list_students') }}" 
                       class="inline-flex items-center gap-2 px-4 py-2 bg-gray-200 text-gray-700 rounded-lg hover:bg-gray-300 transition-colors">
                        <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"></path>
                        </svg>
                        {{ gettext('Cancel') }}
                    </a>
                    <button type="submit" 
                            class="inline-flex items-center gap-2 px-4 py-2 bg-cobalt-600 text-white rounded-lg hover:bg-cobalt-700 transition-colors">
                        <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-8l-4-4m0 0L8 8m4-4v12"></path>
                        </svg>
                        {{ gettext('Import Students') }}
                    </button>
                </div>
            </form>
        </div>
    </div>

    {# Sample Data Preview #}
    <div class="bg-white rounded-lg shadow overflow-hidden">
        <div class="bg-gray-600 px-6 py-4">
            <h2 class="text-lg font-semibold text-white">{{ gettext('Sample Data Format') }}</h2>
        </div>
        <div class="p-6">
            <div class="table-container">
                <table class="table-responsive">
                    <thead>
                        <tr>
                            <th>{{ gettext('Nº Or.') }}</th>
                            <th>{{ gettext('Apellidos, Nombre') }}</th>
                            <th>{{ gettext('Fecha Nac.') }}</th>
                            <th>{{ gettext('C.I.A.L.') }}</th>
                            <th>{{ gettext('NIF/NIE/Pas.') }}</th>
                            <th>{{ gettext('Registro') }}</th>
                            <th>{{ gettext('Expediente') }}</th>
                            <th>{{ gettext('Sexo') }}</th>
                            <th>{{ gettext('Grupo') }}</th>
                            <th class="text-gray-400 line-through">{{ gettext('Estudio') }}</th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td>1</td>
                            <td>García López, María</td>
                            <td>15/03/2005</td>
                            <td>12345678A</td>
                            <td>12345678A</td>
                            <td>REG001</td>
                            <td>EXP001</td>
                            <td>F</td>
                            <td>2º ESO A</td>
                            <td class="text-gray-400 line-through">ESO</td>
                        </tr>
                        <tr>
                            <td>2</td>
                            <td>Martínez Ruiz, Carlos</td>
                            <td>22/07/2004</td>
                            <td>87654321B</td>
                            <td>87654321B</td>
                            <td>REG002</td>
                            <td>EXP002</td>
                            <td>M</td>
                            <td>3º ESO B</td>
                            <td class="text-gray-400 line-through">ESO</td>
                        </tr>
                    </tbody>
                </table>
            </div>
            <p class="mt-3 text-sm text-gray-500">
                <span class="text-gray-400 line-through">{{ gettext('Estudio') }}</span> 
                {{ gettext('column will be discarded during import') }}
            </p>
        </div>
    </div>
</div>
{% endblock %}