{% extends 'core/dashboard-layout.html.twig' %}

{% block title %}Importation des Étudiants{% endblock %}

{% block dashboard_stylesheets %}
<style>
/* CSS intégré pour l'importation des étudiants */
.import-page-v2 { margin-top: 1rem; }

.page-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 2rem; padding: 1.5rem 0; border-bottom: 2px solid var(--border-color);
}

.page-title {
    color: var(--text-primary); font-size: 1.75rem; font-weight: 700; margin: 0;
    display: flex; align-items: center; gap: 0.75rem;
}

.page-title i {
    color: var(--primary-blue); background: rgba(30, 64, 175, 0.1);
    padding: 0.5rem; border-radius: var(--border-radius);
}

.template-download {
    background: var(--primary-blue); color: white; padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius); text-decoration: none; font-weight: 600;
    transition: var(--transition); border: none; box-shadow: var(--shadow);
}

.template-download:hover {
    background: var(--dark-blue); color: white; transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.section-card {
    background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: var(--border-radius); box-shadow: var(--shadow);
    margin-bottom: 1.5rem; overflow: hidden;
}

.section-header {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: white; padding: 0.75rem 1rem; font-weight: 600; font-size: 0.9rem;
    display: flex; align-items: center; gap: 0.5rem;
}

.section-body { padding: 1rem; }

.mini-card {
    background: var(--bg-secondary); border: 1px solid var(--border-color);
    border-radius: calc(var(--border-radius) - 2px); padding: 0.75rem; height: 100%;
}

.mini-card h6 {
    font-size: 0.85rem; margin-bottom: 0.5rem; font-weight: 600; color: var(--text-primary);
}

.badge-list { display: flex; flex-wrap: wrap; gap: 0.25rem; }

.mini-list { list-style: none; padding: 0; margin: 0; font-size: 0.8rem; }

.mini-list li {
    padding: 0.25rem 0; color: var(--text-primary);
    display: flex; align-items: center; gap: 0.5rem;
}

.columns-summary { font-size: 0.8rem; }

.column-tags { margin: 0.5rem 0; display: flex; flex-wrap: wrap; gap: 0.25rem; }

.col-tag {
    background: rgba(30, 64, 175, 0.1); color: var(--primary-blue);
    padding: 0.125rem 0.375rem; border-radius: 3px; font-size: 0.7rem;
    font-family: 'Courier New', monospace; font-weight: 600;
}

.drop-zone {
    border: 3px dashed var(--border-color); border-radius: var(--border-radius);
    padding: 3rem 1.5rem; text-align: center; transition: var(--transition);
    background: var(--bg-secondary); cursor: pointer;
}

.drop-zone:hover {
    border-color: var(--primary-blue); background: rgba(30, 64, 175, 0.02);
}

.upload-icon {
    color: var(--primary-blue); font-size: 3rem; margin-bottom: 1rem;
    opacity: 0.7; transition: var(--transition);
}

.upload-text {
    color: var(--text-primary); font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem;
}

.upload-subtitle { color: var(--text-secondary); margin-bottom: 1.5rem; }

.file-browser-btn {
    background: var(--primary-blue); color: white; border: none;
    padding: 0.75rem 1.5rem; border-radius: var(--border-radius);
    font-weight: 600; cursor: pointer; transition: var(--transition);
}

.selected-file {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white; border-radius: var(--border-radius);
    padding: 1.5rem; margin-top: 1.5rem;
}

.file-info { display: flex; align-items: center; justify-content: space-between; }

.file-details { display: flex; align-items: center; gap: 1rem; }

.file-icon { font-size: 2rem; }

.file-actions { display: flex; gap: 0.5rem; }

.file-actions .btn {
    background: rgba(255,255,255,0.2); border: 1px solid rgba(255,255,255,0.3);
    color: white; padding: 0.5rem 1rem; border-radius: calc(var(--border-radius) - 2px);
    font-size: 0.875rem;
}

.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }

.stat-item {
    text-align: center; padding: 1rem; background: var(--bg-secondary);
    border-radius: calc(var(--border-radius) - 2px); border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-number {
    font-size: 1.75rem; font-weight: 700; line-height: 1;
    margin-bottom: 0.25rem; color: var(--text-primary);
}

.stat-label {
    color: var(--text-secondary); font-size: 0.875rem;
    display: flex; align-items: center; justify-content: center; gap: 0.25rem;
}

.default-stats { text-align: center; color: var(--text-secondary); padding: 2rem 1rem; }

.default-stats i {
    font-size: 3rem; color: var(--primary-blue); opacity: 0.3; margin-bottom: 1rem;
}

.import-actions { display: flex; justify-content: flex-end; margin-top: 1.5rem; }

.import-btn {
    background: var(--success); color: white; border: none;
    padding: 0.75rem 1.5rem; border-radius: var(--border-radius);
    font-weight: 600; cursor: pointer; transition: var(--transition);
}

.import-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Styles pour la barre de progression */
.progress-container {
    background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: var(--border-radius); padding: 1rem; margin-top: 1rem;
}

.progress-wrapper { text-align: center; }

.progress-bar-container {
    background: var(--bg-secondary); border-radius: 10px; height: 20px;
    margin-bottom: 0.5rem; overflow: hidden; position: relative;
}

.progress-bar {
    height: 100%; width: 0%; background: linear-gradient(90deg, var(--primary-blue), var(--secondary-blue));
    border-radius: 10px; transition: width 0.3s ease;
}

.progress-text {
    color: var(--text-primary); font-size: 0.9rem; font-weight: 600;
}

/* Corrections mode sombre */
body.dark-mode .mini-card { background: var(--card-bg); border-color: var(--border-color); }
body.dark-mode .mini-card h6 { color: var(--text-primary); }
body.dark-mode .mini-list li { color: var(--text-primary); }
body.dark-mode .columns-summary { color: var(--text-primary); }
body.dark-mode .col-tag { background: rgba(30, 64, 175, 0.2); color: var(--primary-blue); }
body.dark-mode .upload-text, body.dark-mode .upload-subtitle { color: var(--text-primary); }
body.dark-mode .stat-number { color: var(--text-primary); }
body.dark-mode .stat-label { color: var(--text-secondary); }
body.dark-mode .page-title { color: var(--text-primary); }
body.dark-mode .progress-container { background: var(--card-bg); border-color: var(--border-color); }
body.dark-mode .progress-bar-container { background: var(--bg-secondary); }
body.dark-mode .progress-text { color: var(--text-primary); }
</style>
{% endblock %}

{% block dashboard_content %}
<div class="import-page-v2">
    <!-- En-tête de la page -->
    <div class="page-header">
        <h1 class="page-title">
            <i class="fas fa-upload"></i>
            Importation des Étudiants
        </h1>
        <a href="{{ path('admin_student_import_template') }}" class="template-download">
            <i class="fas fa-download"></i> Télécharger le Modèle CSV
        </a>
    </div>

    <!-- Section 1: Instructions -->
    <div class="section-card">
        <div class="section-header">
            <i class="fas fa-info-circle"></i>
            Instructions d'Importation
        </div>
        <div class="section-body">
            <div class="row">
                <div class="col-md-4">
                    <div class="mini-card">
                        <h6><i class="fas fa-file-csv text-primary"></i> Format</h6>
                        <div class="badge-list">
                            <span class="badge bg-success">CSV</span>
                            <span class="badge bg-info">UTF-8</span>
                            <span class="badge bg-warning">Max 5MB</span>
                        </div>
                    </div>
                </div>
                <div class="col-md-4">
                    <div class="mini-card">
                        <h6><i class="fas fa-lightbulb text-warning"></i> Conseils</h6>
                        <ul class="mini-list">
                            <li><i class="fas fa-check text-success"></i> Téléchargez le modèle</li>
                            <li><i class="fas fa-check text-success"></i> Vérifiez les doublons</li>
                            <li><i class="fas fa-check text-success"></i> Testez avec peu de lignes</li>
                        </ul>
                    </div>
                </div>
                <div class="col-md-4">
                    <div class="mini-card">
                        <h6><i class="fas fa-columns text-primary"></i> Colonnes</h6>
                        <div class="columns-summary">
                            <small>13 colonnes obligatoires :</small>
                            <div class="column-tags">
                                <span class="col-tag">matricule</span>
                                <span class="col-tag">firstName</span>
                                <span class="col-tag">lastName</span>
                                <span class="col-tag">...</span>
                            </div>
                            <small class="text-info">+ email (optionnel)</small>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- Section 2: Upload et Statistiques -->
    <div class="row">
        <div class="col-md-8">
            <div class="section-card">
                <div class="section-header">
                    <i class="fas fa-cloud-upload-alt"></i>
                    Zone de Téléchargement
                </div>
                <div class="section-body">
                    <form id="importForm" enctype="multipart/form-data">
                        <div class="drop-zone" id="dropZone">
                            <i class="fas fa-cloud-upload-alt upload-icon"></i>
                            <div class="upload-text">Glissez-déposez votre fichier CSV ici</div>
                            <div class="upload-subtitle">ou cliquez pour parcourir vos fichiers</div>
                            <button type="button" class="file-browser-btn" onclick="document.getElementById('fileInput').click()">
                                <i class="fas fa-folder-open"></i> Parcourir les Fichiers
                            </button>
                            <input type="file" id="fileInput" name="file" accept=".csv" style="display: none;">
                        </div>

                        <div id="selectedFile" class="selected-file" style="display: none;">
                            <div class="file-info">
                                <div class="file-details">
                                    <i class="fas fa-file-csv file-icon"></i>
                                    <div>
                                        <h6 class="mb-1" id="fileName">nom_fichier.csv</h6>
                                        <small id="fileSize">0 KB</small>
                                    </div>
                                </div>
                                <div class="file-actions">
                                    <button type="button" class="btn" onclick="previewFile()" id="previewBtn">
                                        <i class="fas fa-eye"></i> Aperçu
                                    </button>
                                    <button type="button" class="btn" onclick="removeFile()">
                                        <i class="fas fa-times"></i> Supprimer
                                    </button>
                                </div>
                            </div>
                        </div>

                        <!-- Barre de progression -->
                        <div id="progressContainer" class="progress-container" style="display: none; margin-top: 1rem;">
                            <div class="progress-wrapper">
                                <div class="progress-bar-container">
                                    <div id="progressBar" class="progress-bar"></div>
                                </div>
                                <div id="progressText" class="progress-text">Importation en cours...</div>
                            </div>
                        </div>

                        <div class="import-actions">
                            <button type="submit" class="import-btn" id="importBtn" disabled>
                                <i class="fas fa-upload"></i> Lancer l'Importation
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>

        <div class="col-md-4">
            <div class="section-card">
                <div class="section-header">
                    <i class="fas fa-chart-line"></i>
                    Statistiques
                </div>
                <div class="section-body">
                    <div id="defaultStats" class="default-stats">
                        <i class="fas fa-chart-bar"></i>
                        <p>Sélectionnez un fichier pour voir les statistiques</p>
                    </div>

                    <div id="fileStats" style="display: none;">
                        <div class="stats-grid">
                            <div class="stat-item">
                                <div class="stat-number" id="totalRows">0</div>
                                <div class="stat-label">
                                    <i class="fas fa-list"></i> Lignes totales
                                </div>
                            </div>
                            <div class="stat-item">
                                <div class="stat-number" id="validRows">0</div>
                                <div class="stat-label">
                                    <i class="fas fa-check"></i> Lignes valides
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- Section 3: Aperçu du fichier -->
    <div id="previewSection" class="section-card" style="display: none;">
        <div class="section-header">
            <i class="fas fa-eye"></i>
            Aperçu du Fichier
        </div>
        <div class="section-body" style="padding: 0;">
            <div id="previewContent"></div>
        </div>
    </div>

    <!-- Section 4: Rapport d'importation -->
    <div id="importReportSection" class="section-card" style="display: none;">
        <div class="section-header">
            <i class="fas fa-chart-line"></i>
            Rapport d'Importation
        </div>
        <div class="section-body">
            <div id="importReportContent"></div>
        </div>
    </div>

    <!-- Alertes -->
    <div class="row">
        <div class="col-12">
            <div id="alertsContainer"></div>
        </div>
    </div>
</div>

<script src="{{ asset('js/student-import.js') }}"></script>
<script>
// JavaScript simplifié pour l'importation - Compatible avec student-import.js
// La variable currentFile est déclarée dans student-import.js

// removeFile() est définie dans student-import.js

// showAlert() est définie dans student-import.js

document.addEventListener('DOMContentLoaded', function() {
    const dropZone = document.getElementById('dropZone');
    const fileInput = document.getElementById('fileInput');
    const importForm = document.getElementById('importForm');

    // Gestion du drag & drop
    dropZone.addEventListener('dragover', (e) => {
        e.preventDefault();
        dropZone.style.borderColor = 'var(--primary-blue)';
    });

    dropZone.addEventListener('drop', (e) => {
        e.preventDefault();
        dropZone.style.borderColor = 'var(--border-color)';
        if (e.dataTransfer.files.length > 0) {
            handleFile(e.dataTransfer.files[0]);
        }
    });

    dropZone.addEventListener('click', () => fileInput.click());
    fileInput.addEventListener('change', (e) => {
        if (e.target.files[0]) {
            handleFile(e.target.files[0]);
        }
    });

    function handleFile(file) {
        if (!file.name.toLowerCase().endsWith('.csv')) {
            showAlert('Seuls les fichiers CSV sont supportés.', 'warning');
            return;
        }
        
        if (file.size > 5 * 1024 * 1024) {
            showAlert('Le fichier ne doit pas dépasser 5MB.', 'danger');
            return;
        }

        currentFile = file;
        
        // Afficher le fichier sélectionné
        document.getElementById('fileName').textContent = file.name;
        document.getElementById('fileSize').textContent = formatFileSize(file.size);
        document.getElementById('selectedFile').style.display = 'block';
        document.getElementById('dropZone').style.display = 'none';
        
        // Activer le bouton d'importation
        document.getElementById('importBtn').disabled = false;
        
        // Afficher les statistiques basiques
        document.getElementById('defaultStats').style.display = 'none';
        document.getElementById('fileStats').style.display = 'block';
        document.getElementById('totalRows').textContent = '...';
        document.getElementById('validRows').textContent = '...';
        
        showAlert(`Fichier ${file.name} sélectionné avec succès.`, 'success');
    }

    function formatFileSize(bytes) {
        if (bytes === 0) return '0 B';
        const k = 1024;
        const sizes = ['B', 'KB', 'MB', 'GB'];
        const i = Math.floor(Math.log(bytes) / Math.log(k));
        return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
    }

    // Le gestionnaire d'importation est maintenant géré uniquement par student-import.js

    // Initialisation des URLs pour le fichier JavaScript externe
    if (typeof initializeUrls === 'function') {
        initializeUrls(
            '{{ path("admin_student_import_upload") }}',
            '{{ path("admin_student_import_preview") }}'
        );
    }
});
</script>
{% endblock %}