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<!DOCTYPE html>
<html lang="fr">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Générateur de Données Synthétiques</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script>
        tailwind.config = {
            theme: {
                extend: {
                    animation: {
                        'shimmer': 'shimmer 2s infinite',
                        'bounce-in': 'bounceIn 0.5s ease-out',
                        'slide-in': 'slideIn 0.3s ease-out'
                    },
                    keyframes: {
                        shimmer: {
                            '0%': { transform: 'translateX(-100%)' },
                            '100%': { transform: 'translateX(100%)' }
                        },
                        bounceIn: {
                            '0%': { transform: 'scale(0.3)', opacity: '0' },
                            '50%': { transform: 'scale(1.05)' },
                            '100%': { transform: 'scale(1)', opacity: '1' }
                        },
                        slideIn: {
                            '0%': { transform: 'translateX(100%)', opacity: '0' },
                            '100%': { transform: 'translateX(0)', opacity: '1' }
                        }
                    }
                }
            }
        }
    </script>
</head>
<body class="min-h-screen bg-gradient-to-br from-indigo-500 via-purple-500 to-pink-500 flex items-center justify-center p-5">
    <div class="bg-white rounded-3xl shadow-2xl p-8 max-w-4xl w-full backdrop-blur-sm">
        <!-- Header -->
        <div class="text-center mb-10">
            <h1 class="text-4xl font-bold bg-gradient-to-r from-indigo-600 to-purple-600 bg-clip-text text-transparent mb-3">
                🤖 Générateur de Données Synthétiques
            </h1>
            <p class="text-gray-600 text-lg">Uploadez votre fichier pour générer 470 jeux de données synthétiques</p>
        </div>

        <!-- Upload Section -->
        <div id="uploadSection" class="border-3 border-dashed border-gray-300 rounded-2xl p-10 text-center mb-8 transition-all duration-300 hover:border-indigo-500 hover:bg-indigo-50/30">
            <div class="space-y-4">
                <h3 class="text-xl font-semibold text-gray-700">📁 Sélectionnez votre fichier</h3>
                <p class="text-gray-500">Glissez-déposez votre fichier ici ou cliquez pour sélectionner</p>
                <input type="file" id="fileInput" accept=".txt" class="hidden">
                <div class="space-x-4">
                    <button onclick="document.getElementById('fileInput').click()" 
                            class="bg-gradient-to-r from-indigo-500 to-purple-600 text-white px-8 py-3 rounded-full font-semibold transition-all duration-300 hover:scale-105 hover:shadow-lg">
                        Choisir le fichier
                    </button>
                    <button id="startBtn" onclick="startGeneration()" 
                            class="hidden bg-gradient-to-r from-green-500 to-emerald-600 text-white px-8 py-3 rounded-full font-semibold transition-all duration-300 hover:scale-105 hover:shadow-lg">
                        🚀 Démarrer la génération
                    </button>
                </div>
            </div>
        </div>

        <!-- Progress Section -->
        <div id="progressSection" class="hidden space-y-6">
            <div class="text-center">
                <h3 class="text-2xl font-bold text-gray-800 mb-4">⏳ Génération en cours...</h3>
                <div class="w-full bg-gray-200 rounded-full h-6 overflow-hidden">
                    <div id="progressFill" class="h-full bg-gradient-to-r from-indigo-500 to-purple-600 transition-all duration-500 relative">
                        <div class="absolute inset-0 bg-gradient-to-r from-transparent via-white/30 to-transparent animate-shimmer"></div>
                    </div>
                </div>
            </div>

            <!-- Status Cards -->
            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
                <div class="bg-gradient-to-br from-blue-50 to-indigo-100 p-6 rounded-xl border-l-4 border-indigo-500">
                    <h4 class="font-semibold text-gray-700 mb-2">Progrès</h4>
                    <p id="progressText" class="text-2xl font-bold text-indigo-600">0 / 470</p>
                </div>
                <div class="bg-gradient-to-br from-green-50 to-emerald-100 p-6 rounded-xl border-l-4 border-emerald-500">
                    <h4 class="font-semibold text-gray-700 mb-2">Pourcentage</h4>
                    <p id="percentageText" class="text-2xl font-bold text-emerald-600">0%</p>
                </div>
                <div class="bg-gradient-to-br from-purple-50 to-violet-100 p-6 rounded-xl border-l-4 border-violet-500">
                    <h4 class="font-semibold text-gray-700 mb-2">Statut</h4>
                    <p id="statusText" class="text-lg font-bold text-violet-600">En attente</p>
                </div>
                <div class="bg-gradient-to-br from-orange-50 to-amber-100 p-6 rounded-xl border-l-4 border-amber-500">
                    <h4 class="font-semibold text-gray-700 mb-2">Heure de début</h4>
                    <p id="startTimeText" class="text-lg font-bold text-amber-600">-</p>
                </div>
            </div>

            <!-- Download Button -->
            <div class="text-center">
                <button id="downloadBtn" onclick="downloadResults()" 
                        class="hidden bg-gradient-to-r from-green-500 to-emerald-600 text-white px-8 py-3 rounded-full font-semibold transition-all duration-300 hover:scale-105 hover:shadow-lg">
                    📥 Télécharger les résultats
                </button>
                <!-- Bouton de téléchargement en cours -->
                <button id="downloadProgressBtn" onclick="downloadCurrentResults()" 
                        class="hidden bg-gradient-to-r from-yellow-500 to-orange-500 text-white px-8 py-3 rounded-full font-semibold transition-all duration-300 hover:scale-105 hover:shadow-lg">
                    📥 Télécharger les données actuelles
                </button>
            </div>
        </div>

        <!-- Tasks Section -->
        <div class="mt-10 pt-8 border-t-2 border-gray-200">
            <h3 class="text-xl font-bold text-gray-800 mb-6">📋 Tâches précédentes</h3>
            <div id="tasksList" class="space-y-4"></div>
        </div>
    </div>

    <!-- Notification -->
    <div id="notification" class="fixed top-5 right-5 px-6 py-4 rounded-xl text-white font-semibold transform translate-x-full transition-transform duration-300 z-50"></div>

    <script>
        let currentTaskId = null;
        let statusInterval = null;

        // Gestion du drag & drop
        const uploadSection = document.getElementById('uploadSection');
        const fileInput = document.getElementById('fileInput');

        uploadSection.addEventListener('dragover', (e) => {
            e.preventDefault();
            uploadSection.classList.add('border-indigo-500', 'bg-indigo-50/50');
        });

        uploadSection.addEventListener('dragleave', () => {
            uploadSection.classList.remove('border-indigo-500', 'bg-indigo-50/50');
        });

        uploadSection.addEventListener('drop', (e) => {
            e.preventDefault();
            uploadSection.classList.remove('border-indigo-500', 'bg-indigo-50/50');
            
            const files = e.dataTransfer.files;
            if (files.length > 0) {
                fileInput.files = files;
                handleFileSelect();
            }
        });

        fileInput.addEventListener('change', handleFileSelect);

        function handleFileSelect() {
            const file = fileInput.files[0];
            if (file) {
                document.getElementById('startBtn').classList.remove('hidden');
                document.getElementById('startBtn').classList.add('animate-bounce-in');
                showNotification(`Fichier sélectionné: ${file.name}`, 'success');
            }
        }

        function startGeneration() {
            const file = fileInput.files[0];
            if (!file) {
                showNotification('Veuillez sélectionner un fichier', 'error');
                return;
            }

            const formData = new FormData();
            formData.append('file', file);

            fetch('/upload', {
                method: 'POST',
                body: formData
            })
            .then(response => response.json())
            .then(data => {
                if (data.error) {
                    showNotification(data.error, 'error');
                } else {
                    currentTaskId = data.task_id;
                    document.getElementById('progressSection').classList.remove('hidden');
                    document.getElementById('downloadProgressBtn').classList.remove('hidden');
                    startStatusPolling();
                    showNotification('Génération démarrée!', 'success');
                }
            })
            .catch(error => {
                showNotification('Erreur lors du démarrage', 'error');
                console.error('Error:', error);
            });
        }

        function startStatusPolling() {
            if (statusInterval) clearInterval(statusInterval);
            
            statusInterval = setInterval(() => {
                if (currentTaskId) {
                    fetch(`/status/${currentTaskId}`)
                    .then(response => response.json())
                    .then(data => {
                        updateProgress(data);
                        if (data.status === 'completed') {
                            clearInterval(statusInterval);
                            document.getElementById('downloadBtn').classList.remove('hidden');
                            document.getElementById('downloadProgressBtn').classList.add('hidden');
                            showNotification('Génération terminée!', 'success');
                        }
                    })
                    .catch(console.error);
                }
            }, 2000);
        }

        function updateProgress(data) {
            const progressFill = document.getElementById('progressFill');
            const progressText = document.getElementById('progressText');
            const percentageText = document.getElementById('percentageText');
            const statusText = document.getElementById('statusText');
            const startTimeText = document.getElementById('startTimeText');

            progressFill.style.width = `${data.percentage}%`;
            progressText.textContent = `${data.progress} / ${data.total}`;
            percentageText.textContent = `${data.percentage}%`;
            statusText.textContent = data.status === 'running' ? 'En cours' : 
                                   data.status === 'completed' ? 'Terminé' : data.status;
            startTimeText.textContent = data.start_time;
        }

        function downloadResults() {
            if (currentTaskId) {
                window.location.href = `/download/${currentTaskId}`;
            }
        }

        function downloadCurrentResults() {
            if (currentTaskId) {
                window.location.href = `/download/${currentTaskId}?partial=true`;
                showNotification('Téléchargement des données actuelles...', 'success');
            }
        }

        function showNotification(message, type) {
            const notification = document.getElementById('notification');
            notification.textContent = message;
            
            // Reset classes
            notification.className = 'fixed top-5 right-5 px-6 py-4 rounded-xl text-white font-semibold transform translate-x-full transition-transform duration-300 z-50';
            
            // Add type-specific classes
            if (type === 'success') {
                notification.classList.add('bg-gradient-to-r', 'from-green-500', 'to-emerald-600');
            } else if (type === 'error') {
                notification.classList.add('bg-gradient-to-r', 'from-red-500', 'to-rose-600');
            }
            
            // Show notification
            setTimeout(() => {
                notification.classList.remove('translate-x-full');
                notification.classList.add('animate-slide-in');
            }, 100);

            // Hide notification after 3 seconds
            setTimeout(() => {
                notification.classList.add('translate-x-full');
            }, 3000);
        }

        function loadTasks() {
            fetch('/tasks')
            .then(response => response.json())
            .then(tasks => {
                const tasksList = document.getElementById('tasksList');
                tasksList.innerHTML = '';

                tasks.forEach(task => {
                    const taskItem = document.createElement('div');
                    taskItem.className = `bg-gradient-to-r from-gray-50 to-gray-100 p-6 rounded-xl border-l-4 ${
                        task.status === 'completed' ? 'border-green-500' : 
                        task.status === 'running' ? 'border-blue-500' : 'border-gray-400'
                    } transition-all duration-300 hover:shadow-md`;
                    
                    taskItem.innerHTML = `
                        <div class="flex justify-between items-center">
                            <div class="space-y-2">
                                <div class="flex items-center space-x-3">
                                    <span class="font-bold text-gray-800">Tâche ${task.id.substring(0, 8)}...</span>
                                    <span class="px-3 py-1 rounded-full text-sm font-medium ${
                                        task.status === 'completed' ? 'bg-green-100 text-green-800' :
                                        task.status === 'running' ? 'bg-blue-100 text-blue-800' : 'bg-gray-100 text-gray-800'
                                    }">
                                        ${task.status === 'completed' ? 'Terminé' : 
                                          task.status === 'running' ? 'En cours' : task.status}
                                    </span>
                                </div>
                                <div class="text-sm text-gray-600">
                                    <span>Démarré: ${task.start_time}</span> | 
                                    <span>Progrès: ${task.progress}/${task.total} (${task.percentage}%)</span>
                                </div>
                            </div>
                            <div class="space-x-2">
                                ${task.status === 'completed' ? 
                                    `<button onclick="window.location.href='/download/${task.id}'" 
                                             class="bg-gradient-to-r from-green-500 to-emerald-600 text-white px-4 py-2 rounded-lg font-medium transition-all duration-300 hover:scale-105">
                                        Télécharger
                                     </button>` : 
                                    task.status === 'running' ?
                                    `<button onclick="window.location.href='/download/${task.id}?partial=true'" 
                                             class="bg-gradient-to-r from-yellow-500 to-orange-500 text-white px-4 py-2 rounded-lg font-medium transition-all duration-300 hover:scale-105">
                                        Télécharger actuel
                                     </button>` :
                                    `<span class="text-gray-500 font-medium">${task.status}</span>`
                                }
                            </div>
                        </div>
                    `;
                    tasksList.appendChild(taskItem);
                });
            })
            .catch(console.error);
        }

        // Charger les tâches au démarrage
        loadTasks();

        // Recharger les tâches toutes les 30 secondes
        setInterval(loadTasks, 30000);
    </script>
</body>
</html>