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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>Mariam M-1 | Solution Mathématique Intelligente</title>
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    .thought-box.open { max-height: 500px; }

    #thoughtsContent, #answerContent {
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    /* Modal plein écran pour les sauvegardes */
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</head>
<body class="p-4">
  <div class="max-w-4xl mx-auto">
    <header class="p-6 text-center mb-8">
      <h1 class="text-4xl font-bold text-blue-600">Mariam M-1</h1>
      <p class="text-gray-600">Solution Mathématique/Physique/Chimie Intelligente</p>
      
      <div class="mt-4 flex justify-end">
        <button id="openSaved" class="blue-button px-4 py-2 text-white rounded">Sauvegardes</button>
      </div>
    </header>

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        <!-- Zone de dépôt / sélection d'image -->
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          <input type="file" id="imageInput" name="image" accept="image/*" class="absolute inset-0 w-full h-full opacity-0 cursor-pointer" aria-label="Choisir une image">
          <div class="space-y-3">
            <div class="w-16 h-16 mx-auto border-2 border-blue-400 rounded-full flex items-center justify-center">
              <svg class="w-8 h-8 text-blue-400" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
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            <p class="text-gray-700 font-medium">Déposez votre image ici</p>
            <p class="text-gray-500 text-sm">ou cliquez pour sélectionner</p>
          </div>
        </div>

        <!-- Aperçu de l'image -->
        <div id="imagePreview" class="hidden text-center">
          <img id="previewImage" class="preview-image mx-auto" alt="Prévisualisation de l'image">
        </div>

        <!-- Option Calculatrice -->
        <div id="calculatorOption" class="calculator-option">
          <div class="flex items-center justify-between">
            <div class="flex items-center space-x-3">
              <div class="text-2xl">🧮</div>
              <div>
                <h3 class="font-semibold text-gray-800">Mode Calculatrice</h3>
                <p class="text-sm text-gray-600">Active l'exécution de code Python pour les calculs numériques et graphiques</p>
              </div>
            </div>
            <label class="toggle-switch">
              <input type="checkbox" id="calculatorToggle">
              <span class="slider"></span>
            </label>
          </div>
          
          <div id="calculatorFeatures" class="mt-3 text-xs text-gray-500 hidden">
            <div class="grid grid-cols-2 gap-2">
              <div class="flex items-center space-x-1">
                <span>✓</span><span>Calculs numériques précis</span>
              </div>
              <div class="flex items-center space-x-1">
                <span>✓</span><span>Graphiques matplotlib</span>
              </div>
              <div class="flex items-center space-x-1">
                <span>✓</span><span>Vérification des résultats</span>
              </div>
              <div class="flex items-center space-x-1">
                <span>✓</span><span>Visualisations 2D/3D</span>
              </div>
            </div>
          </div>
        </div>

        <!-- Le bouton de soumission -->
        <button type="submit" id="submitButton" class="blue-button w-full py-3 text-white font-medium rounded-lg">
          Résoudre le problème
        </button>
      </form>

      <!-- Loader -->
      <div id="loader" class="hidden mt-8 text-center">
        <span class="loader"></span>
        <p class="mt-4 text-gray-600">Analyse en cours...</p>
      </div>

      <!-- Zone d'affichage de la solution -->
      <section id="solution" class="hidden mt-8 space-y-6 relative">
        <div class="border-t pt-4">
          <button id="thoughtsToggle" type="button" class="w-full flex justify-between items-center p-2 hover:bg-gray-100 rounded">
            <span class="font-medium text-gray-700">Processus de Réflexion</span>
            <span id="timestamp" class="timestamp"></span>
          </button>
          <div id="thoughtsBox" class="thought-box">
            <div id="thoughtsContent" class="p-4 text-gray-600"></div>
          </div>
        </div>
        <div class="border-t pt-6">
          <div class="flex justify-between items-center">
            <h3 class="text-xl font-bold text-gray-800 mb-4">Solution</h3>
            <button id="saveButton">Sauvegarder</button>
          </div>
          <div id="answerContent" class="text-gray-700 table-responsive"></div>
        </div>
      </section>
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  <!-- Modal plein écran pour les sauvegardes -->
  <div id="savedModal">
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        <h2 class="text-2xl font-bold">Sauvegardes</h2>
        <button id="closeSaved" class="text-3xl text-gray-600 hover:text-gray-800">×</button>
      </header>
      <div id="savedListContainer" class="mt-4">
        <ul id="savedList" class="space-y-4">
          <!-- Liste des sauvegardes insérée dynamiquement -->
        </ul>
      </div>
      <div class="mt-6">
        <button id="newExercise" class="blue-button w-full py-3 text-white font-medium rounded-lg">
          Résoudre un nouvel exercice
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      // Configuration
      const COOLDOWN_DURATION_MS = 3 * 60 * 1000; // 3 minutes
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          elements.calculatorFeatures.classList.add('hidden');
        }
      });

      // --- File Handling ---
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        elements.previewImage.src = '#';
        elements.solutionSection.classList.add('hidden');
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        elements.answerContent.innerHTML = '';
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        state.answerBuffer = '';
        state.currentMode = null;
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        elements.form.classList.remove('hidden');
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        // Reset calculator toggle
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      // --- Event Listeners ---
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      elements.imageInput.addEventListener('change', e => handleFileSelect(e.target.files[0]));

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              break;
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                        break;
                      case 'result':
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                        break;
                      case 'image':
                        state.answerBuffer += `\n![Résultat](data:image/png;base64,${data.content})\n`;
                        break;
                      case 'text':
                      default:
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                        break;
                    }
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                  } else {
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                } else {
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                }
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          }
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        } finally {
          stopSolutionTimer();
        }
      });

      // --- Saved Solutions Logic ---
      elements.saveButton.addEventListener('click', async () => {
        const { value: saveName } = await Swal.fire({
          title: 'Nom de la sauvegarde',
          input: 'text',
          inputPlaceholder: 'Ex: Exercice Maths Ch.3',
          showCancelButton: true,
          confirmButtonText: 'Sauvegarder',
          cancelButtonText: 'Annuler',
          inputValidator: (value) => {
            if (!value) return 'Vous devez entrer un nom !';
            const savedExercises = JSON.parse(localStorage.getItem('savedExercises') || '{}');
            if (savedExercises[value]) return 'Ce nom existe déjà. Choisissez-en un autre.';
          }
        });

        if (saveName) {
          const saveData = {
            answer: elements.answerContent.innerHTML,
            thinking: elements.thoughtsContent.innerHTML,
            date: new Date().toLocaleString('fr-FR'),
            calculatorUsed: elements.calculatorToggle.checked
          };
          let savedExercises = JSON.parse(localStorage.getItem('savedExercises') || '{}');
          savedExercises[saveName] = saveData;
          localStorage.setItem('savedExercises', JSON.stringify(savedExercises));
          Swal.fire('Sauvegardé!', 'Votre solution a été sauvegardée.', 'success');
        }
      });

      const loadSavedList = () => {
        elements.savedList.innerHTML = '';
        const savedExercises = JSON.parse(localStorage.getItem('savedExercises') || '{}');
        if (Object.keys(savedExercises).length === 0) {
          elements.savedList.innerHTML = '<li class="text-gray-500">Aucune sauvegarde pour le moment.</li>';
          return;
        }
        
        for (const [name, data] of Object.entries(savedExercises).sort((a,b) => new Date(b[1].date) - new Date(a[1].date))) {
          const li = document.createElement('li');
          li.className = 'flex justify-between items-center p-2 hover:bg-gray-100 rounded';
          
          const calculatorBadge = data.calculatorUsed ? 
            '<span class="inline-flex items-center px-2 py-1 rounded-full text-xs font-medium bg-green-100 text-green-800 ml-2">🧮 Calculatrice</span>' : 
            '';
          
          li.innerHTML = `
            <button class="text-left text-blue-600 hover:underline focus:outline-none" data-save-name="${name}">
              ${name} ${calculatorBadge}<br>
              <span class="text-gray-500 text-xs">(${data.date})</span>
            </button>
            <button class="text-red-500 hover:text-red-700 text-xs p-1 focus:outline-none" data-delete-name="${name}" aria-label="Supprimer ${name}">
              Supprimer
            </button>
          `;
          elements.savedList.appendChild(li);
        }
      };

      elements.savedList.addEventListener('click', (e) => {
        const target = e.target.closest('button');
        if (!target) return;

        const saveName = target.dataset.saveName;
        const deleteName = target.dataset.deleteName;

        if (saveName) {
          const savedExercises = JSON.parse(localStorage.getItem('savedExercises') || '{}');
          const data = savedExercises[saveName];
          if (data) {
            resetUIForNewProblem();
            elements.form.classList.add('hidden');
            elements.loader.classList.add('hidden');
            elements.solutionSection.classList.remove('hidden');
            elements.thoughtsContent.innerHTML = data.thinking;
            elements.answerContent.innerHTML = data.answer;
            state.thoughtsBuffer = '';
            state.answerBuffer = '';
            typesetMathJaxContent(elements.thoughtsContent).then(() => {
              typesetMathJaxContent(elements.answerContent).then(() => {
                applyHighlighting();
              });
            });
            elements.thoughtsBox.classList.add('open');
            elements.savedModal.classList.remove('active');
            resetSolutionTimer();
            elements.timestamp.textContent = data.date;
            
            // Restore calculator state
            if (data.calculatorUsed) {
              elements.calculatorToggle.checked = true;
              elements.calculatorOption.classList.add('enabled');
              elements.calculatorFeatures.classList.remove('hidden');
            }
          }
        } else if (deleteName) {
          Swal.fire({
            title: `Supprimer "${deleteName}" ?`,
            text: "Cette action est irréversible.",
            icon: 'warning',
            showCancelButton: true,
            confirmButtonColor: '#d33',
            cancelButtonColor: '#3085d6',
            confirmButtonText: 'Oui, supprimer !',
            cancelButtonText: 'Annuler'
          }).then((result) => {
            if (result.isConfirmed) {
              let savedExercises = JSON.parse(localStorage.getItem('savedExercises') || '{}');
              delete savedExercises[deleteName];
              localStorage.setItem('savedExercises', JSON.stringify(savedExercises));
              loadSavedList();
              Swal.fire('Supprimé!', `"${deleteName}" a été supprimé.`, 'success');
            }
          });
        }
      });

      elements.openSaved.addEventListener('click', () => {
        loadSavedList();
        elements.savedModal.classList.add('active');
      });
      
      elements.closeSaved.addEventListener('click', () => {
        elements.savedModal.classList.remove('active');
      });
      
      elements.newExercise.addEventListener('click', () => {
        resetUIForNewProblem();
        elements.savedModal.classList.remove('active');
      });

      // --- Initialization ---
      resetUIForNewProblem();
    });
  </script>
</body>
</html>