{% extends "base.html" %}

{% block title %}Configuration de l'échelle - Notytex{% endblock %}

{% block content %}
<div class="space-y-8">
    <!-- Breadcrumb -->
    <nav class="flex" aria-label="Breadcrumb">
        <ol class="flex items-center space-x-4">
            <li>
                <a href="{{ url_for('config.index') }}" class="text-gray-400 hover:text-gray-500">
                    <svg class="w-5 h-5" fill="currentColor" viewBox="0 0 20 20">
                        <path fill-rule="evenodd" d="M11.49 3.17c-.38-1.56-2.6-1.56-2.98 0a1.532 1.532 0 01-2.286.948c-1.372-.836-2.942.734-2.106 2.106.54.886.061 2.042-.947 2.287-1.561.379-1.561 2.6 0 2.978a1.532 1.532 0 01.947 2.287c-.836 1.372.734 2.942 2.106 2.106a1.532 1.532 0 012.287.947c.379 1.561 2.6 1.561 2.978 0a1.533 1.533 0 012.287-.947c1.372.836 2.942-.734 2.106-2.106a1.533 1.533 0 01.947-2.287c1.561-.379 1.561-2.6 0-2.978a1.532 1.532 0 01-.947-2.287c.836-1.372-.734-2.942-2.106-2.106a1.532 1.532 0 01-2.287-.947zM10 13a3 3 0 100-6 3 3 0 000 6z" clip-rule="evenodd"/>
                    </svg>
                    <span class="sr-only">Configuration</span>
                </a>
            </li>
            <li>
                <div class="flex items-center">
                    <svg class="w-5 h-5 text-gray-400" fill="currentColor" viewBox="0 0 20 20">
                        <path fill-rule="evenodd" d="M7.293 14.707a1 1 0 010-1.414L10.586 10 7.293 6.707a1 1 0 011.414-1.414l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414 0z" clip-rule="evenodd"/>
                    </svg>
                    <span class="ml-4 text-sm font-medium text-gray-500">Échelle de réussite</span>
                </div>
            </li>
        </ol>
    </nav>

    <!-- En-tête -->
    <div class="bg-gradient-to-r from-green-600 to-teal-600 text-white rounded-xl p-8 shadow-lg">
        <div class="flex items-center justify-between">
            <div>
                <h1 class="text-3xl font-bold mb-2">📏 Échelle de réussite</h1>
                <p class="text-xl opacity-90">Configurez l'échelle de réussite pour les compétences et domaines</p>
            </div>
            <div class="hidden md:block">
                <div class="w-20 h-20 bg-white/20 rounded-full flex items-center justify-center">
                    <svg class="w-10 h-10" fill="currentColor" viewBox="0 0 20 20">
                        <path fill-rule="evenodd" d="M3 3a1 1 0 000 2v8a2 2 0 002 2h2a2 2 0 002-2V5a1 1 0 100-2H3zm6 2a1 1 0 011-1h6a1 1 0 110 2h-6a1 1 0 01-1-1zm1 5a1 1 0 100 2h6a1 1 0 100-2h-6zm0 4a1 1 0 100 2h6a1 1 0 100-2h-6z" clip-rule="evenodd"/>
                    </svg>
                </div>
            </div>
        </div>
    </div>

    <!-- Information sur l'échelle actuelle -->
    <div class="bg-blue-50 border border-blue-200 rounded-lg p-6">
        <div class="flex items-start">
            <svg class="w-6 h-6 text-blue-400 mt-0.5 mr-3" fill="currentColor" viewBox="0 0 20 20">
                <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"/>
            </svg>
            <div>
                <h3 class="text-sm font-medium text-blue-800">Organisation de l'échelle</h3>
                <ul class="text-sm text-blue-700 mt-2 space-y-1">
                    <li><strong>Échelle numérique :</strong> Valeurs de 0 à N avec progression continue</li>
                    <li><strong>Valeurs spéciales :</strong> "." pour non évalué et autres valeurs personnalisées</li>
                    <li><strong>Réglage de l'étendue :</strong> Vous pouvez étendre l'échelle jusqu'à 10</li>
                </ul>
            </div>
        </div>
    </div>

    <!-- Formulaire de configuration -->
    <div class="bg-white rounded-lg shadow-md">
        <div class="px-6 py-4 border-b border-gray-200">
            <h3 class="text-lg font-medium text-gray-900">🎚️ Configuration de l'échelle</h3>
            <p class="text-sm text-gray-500 mt-1">{{ competence_scale|length }} valeur(s) configurée(s)</p>
        </div>

        <form method="POST" action="{{ url_for('config.update_scale') }}" class="p-6">
            
            <!-- Configuration du dégradé de couleurs pour les notes -->
            <div class="mb-8">
                <div class="mb-4">
                    <h4 class="text-lg font-medium text-gray-900">🎨 Dégradé de couleurs pour les notes</h4>
                    <p class="text-sm text-gray-500 mt-1">Définissez les couleurs min et max, le dégradé sera calculé automatiquement pour toutes les valeurs intermédiaires</p>
                </div>
                
                <!-- Interface sur une ligne : Min - Dégradé - Max -->
                <div class="bg-white border border-gray-200 rounded-lg p-6">
                    <div class="flex items-center justify-between space-x-6">
                        
                        <!-- Couleur minimum (0) -->
                        <div class="flex flex-col items-center space-y-3 min-w-0">
                            <div class="text-center">
                                <div class="text-sm font-medium text-gray-700 mb-1">Note 0</div>
                                <div class="text-xs text-gray-500">Échec</div>
                            </div>
                            <div class="flex flex-col items-center space-y-2">
                                <input 
                                    type="color" 
                                    id="notes_gradient_color_min" 
                                    name="notes_gradient_color_min" 
                                    value="{{ notes_gradient.min_color }}"
                                    class="w-16 h-16 border-2 border-gray-300 rounded-lg cursor-pointer shadow-sm hover:border-gray-400"
                                    onchange="updateNotesGradientPreview()"
                                    title="Couleur pour note 0"
                                >
                                <input 
                                    type="text" 
                                    id="notes_gradient_color_min_text" 
                                    value="{{ notes_gradient.min_color }}"
                                    class="w-20 px-2 py-1 text-xs text-center border border-gray-300 rounded focus:outline-none focus:ring-1 focus:ring-purple-500 focus:border-purple-500"
                                    pattern="#[0-9a-fA-F]{6}"
                                    onchange="syncNotesGradientColor('min')"
                                    title="Code couleur hexadécimal"
                                >
                            </div>
                        </div>
                        
                        <!-- Dégradé visuel -->
                        <div class="flex-1 flex flex-col space-y-3">
                            <div class="text-center">
                                <div class="text-sm font-medium text-gray-700 mb-1">Dégradé automatique</div>
                                <div class="text-xs text-gray-500">Exemples de notes</div>
                            </div>
                            
                            <!-- Barre de dégradé -->
                            <div class="w-full">
                                <div id="gradient-bar" class="h-8 rounded-lg shadow-inner bg-gray-200"></div>
                            </div>
                            
                            <!-- Exemples de notes positionnés sur le dégradé -->
                            <div class="relative w-full">
                                <!-- Note 5/20 à 25% -->
                                <div class="absolute flex flex-col items-center" style="left: 25%; transform: translateX(-50%);">
                                    <div id="notes-preview-25" class="w-8 h-8 rounded border-2 border-white shadow-sm flex items-center justify-center text-white text-xs font-bold">5</div>
                                    <span class="text-xs text-gray-600 mt-1">5/20</span>
                                </div>
                                <!-- Note 10/20 à 50% -->
                                <div class="absolute flex flex-col items-center" style="left: 50%; transform: translateX(-50%);">
                                    <div id="notes-preview-50" class="w-8 h-8 rounded border-2 border-white shadow-sm flex items-center justify-center text-white text-xs font-bold">10</div>
                                    <span class="text-xs text-gray-600 mt-1">10/20</span>
                                </div>
                                <!-- Note 15/20 à 75% -->
                                <div class="absolute flex flex-col items-center" style="left: 75%; transform: translateX(-50%);">
                                    <div id="notes-preview-75" class="w-8 h-8 rounded border-2 border-white shadow-sm flex items-center justify-center text-white text-xs font-bold">15</div>
                                    <span class="text-xs text-gray-600 mt-1">15/20</span>
                                </div>
                                <!-- Espacement pour les labels -->
                                <div class="h-12"></div>
                            </div>
                        </div>
                        
                        <!-- Couleur maximum (max) -->
                        <div class="flex flex-col items-center space-y-3 min-w-0">
                            <div class="text-center">
                                <div class="text-sm font-medium text-gray-700 mb-1">Note max</div>
                                <div class="text-xs text-gray-500">Réussite</div>
                            </div>
                            <div class="flex flex-col items-center space-y-2">
                                <input 
                                    type="color" 
                                    id="notes_gradient_color_max" 
                                    name="notes_gradient_color_max" 
                                    value="{{ notes_gradient.max_color }}"
                                    class="w-16 h-16 border-2 border-gray-300 rounded-lg cursor-pointer shadow-sm hover:border-gray-400"
                                    onchange="updateNotesGradientPreview()"
                                    title="Couleur pour note maximale"
                                >
                                <input 
                                    type="text" 
                                    id="notes_gradient_color_max_text" 
                                    value="{{ notes_gradient.max_color }}"
                                    class="w-20 px-2 py-1 text-xs text-center border border-gray-300 rounded focus:outline-none focus:ring-1 focus:ring-purple-500 focus:border-purple-500"
                                    pattern="#[0-9a-fA-F]{6}"
                                    onchange="syncNotesGradientColor('max')"
                                    title="Code couleur hexadécimal"
                                >
                            </div>
                        </div>
                    </div>
                    
                </div>
            </div>
            
            <!-- Échelle numérique -->
            <div class="mb-8">
                <div class="flex items-center justify-between mb-4">
                    <h4 class="text-lg font-medium text-gray-900">🔢 Échelle numérique (0 à 3)</h4>
                </div>
                
                <div class="bg-gray-50 rounded-lg p-4 mb-4">
                    <p class="text-sm text-gray-600">
                        Configurez chaque niveau de l'échelle numérique fixe de 0 à 3.
                    </p>
                </div>
                
                <div id="numeric-scale" class="space-y-4">
                    {% for value, config in competence_scale.items() %}
                        {% if value in ['0', '1', '2', '3'] %}
                            <div class="border border-gray-200 rounded-lg p-4" data-numeric-value="{{ value }}">
                                    <div class="flex items-center justify-between mb-3">
                                        <div class="flex items-center space-x-3">
                                            <div 
                                                class="w-8 h-8 rounded-full border-2 border-white shadow-sm flex items-center justify-center text-white font-bold text-sm"
                                                style="background-color: {{ config.color }}"
                                            >
                                                {{ value }}
                                            </div>
                                            <h5 class="font-medium text-gray-900">
                                                {% if value == '0' %}
                                                    Niveau {{ value }} (minimum)
                                                {% else %}
                                                    Niveau {{ value }}
                                                {% endif %}
                                            </h5>
                                        </div>
                                        
                                        <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium {% if config.included_in_total %}bg-green-100 text-green-800{% else %}bg-red-100 text-red-800{% endif %}">
                                            {% if config.included_in_total %}✅ Inclus{% else %}❌ Exclu{% endif %}
                                        </span>
                                    </div>

                                    <div class="grid grid-cols-1 md:grid-cols-3 gap-4">
                                        <div>
                                            <label for="scale_{{ value }}_label" class="block text-sm font-medium text-gray-700 mb-1">
                                                Libellé
                                            </label>
                                            <input 
                                                type="text" 
                                                id="scale_{{ value }}_label" 
                                                name="scale_{{ value }}_label" 
                                                value="{{ config.label }}"
                                                class="w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-green-500 focus:border-green-500"
                                                required
                                            >
                                        </div>

                                        <div>
                                            <label for="scale_{{ value }}_color" class="block text-sm font-medium text-gray-700 mb-1">
                                                Couleur
                                            </label>
                                            <div class="flex items-center space-x-2">
                                                <input 
                                                    type="color" 
                                                    id="scale_{{ value }}_color" 
                                                    name="scale_{{ value }}_color" 
                                                    value="{{ config.color }}"
                                                    class="w-10 h-10 border border-gray-300 rounded-md cursor-pointer"
                                                >
                                                <input 
                                                    type="text" 
                                                    id="scale_{{ value }}_color_text" 
                                                    value="{{ config.color }}"
                                                    class="flex-1 px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-green-500 focus:border-green-500"
                                                    pattern="#[0-9a-fA-F]{6}"
                                                    onchange="syncColor('{{ value }}')"
                                                >
                                            </div>
                                        </div>

                                        <div>
                                            <label for="scale_{{ value }}_included_in_total" class="block text-sm font-medium text-gray-700 mb-1">
                                                Inclusion dans le total
                                            </label>
                                            <select 
                                                id="scale_{{ value }}_included_in_total" 
                                                name="scale_{{ value }}_included_in_total"
                                                class="w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-green-500 focus:border-green-500"
                                            >
                                                <option value="true" {% if config.included_in_total %}selected{% endif %}>✅ Inclus dans le calcul</option>
                                                <option value="false" {% if not config.included_in_total %}selected{% endif %}>❌ Exclu du calcul</option>
                                            </select>
                                        </div>
                                    </div>
                                </div>
                        {% endif %}
                    {% endfor %}
                </div>
            </div>

            <!-- Valeurs spéciales -->
            <div class="mb-8">
                <div class="flex items-center justify-between mb-4">
                    <h4 class="text-lg font-medium text-gray-900">🔤 Valeurs spéciales</h4>
                    <button 
                        type="button"
                        onclick="showAddSpecialValue()"
                        class="inline-flex items-center px-3 py-1 text-sm border border-gray-300 rounded-md shadow-sm text-gray-700 bg-white hover:bg-gray-50"
                    >
                        <svg class="w-4 h-4 mr-1" fill="currentColor" viewBox="0 0 20 20">
                            <path fill-rule="evenodd" d="M10 3a1 1 0 011 1v5h5a1 1 0 110 2h-5v5a1 1 0 11-2 0v-5H4a1 1 0 110-2h5V4a1 1 0 011-1z" clip-rule="evenodd"/>
                        </svg>
                        Ajouter
                    </button>
                </div>
                
                <div class="space-y-4">
                    {% for value, config in competence_scale.items() %}
                        {% if value not in ['0', '1', '2', '3'] %}
                            <div class="border border-gray-200 rounded-lg p-4">
                                <div class="flex items-center justify-between mb-3">
                                    <div class="flex items-center space-x-3">
                                        <div 
                                            class="w-8 h-8 rounded-full border-2 border-white shadow-sm flex items-center justify-center text-white font-bold text-sm"
                                            style="background-color: {{ config.color }}"
                                        >
                                            {% if value == '.' %}
                                                •
                                            {% else %}
                                                {{ value }}
                                            {% endif %}
                                        </div>
                                        <h5 class="font-medium text-gray-900">
                                            {% if value == '.' %}
                                                Valeur "." (Non évalué)
                                            {% else %}
                                                Valeur "{{ value }}"
                                            {% endif %}
                                        </h5>
                                    </div>
                                    
                                    <div class="flex items-center space-x-2">
                                        <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium {% if config.included_in_total %}bg-green-100 text-green-800{% else %}bg-red-100 text-red-800{% endif %}">
                                            {% if config.included_in_total %}✅ Inclus{% else %}❌ Exclu{% endif %}
                                        </span>
                                        
                                        {% if value != '.' %}
                                            <button 
                                                type="button"
                                                onclick="deleteSpecialValue('{{ value }}', '{{ config.label }}')"
                                                class="p-1 text-gray-400 hover:text-red-600 transition-colors"
                                                title="Supprimer cette valeur"
                                            >
                                                <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
                                                    <path fill-rule="evenodd" d="M9 2a1 1 0 00-.894.553L7.382 4H4a1 1 0 000 2v10a2 2 0 002 2h8a2 2 0 002-2V6a1 1 0 100-2h-3.382l-.724-1.447A1 1 0 0011 2H9zM7 8a1 1 0 012 0v6a1 1 0 11-2 0V8zm5-1a1 1 0 00-1 1v6a1 1 0 102 0V8a1 1 0 00-1-1z" clip-rule="evenodd"/>
                                                </svg>
                                            </button>
                                        {% endif %}
                                    </div>
                                </div>

                                <div class="grid grid-cols-1 md:grid-cols-3 gap-4">
                                    <div>
                                        <label for="scale_{{ value }}_label" class="block text-sm font-medium text-gray-700 mb-1">
                                            Libellé
                                        </label>
                                        <input 
                                            type="text" 
                                            id="scale_{{ value }}_label" 
                                            name="scale_{{ value }}_label" 
                                            value="{{ config.label }}"
                                            class="w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-green-500 focus:border-green-500"
                                            required
                                        >
                                    </div>

                                    <div>
                                        <label for="scale_{{ value }}_color" class="block text-sm font-medium text-gray-700 mb-1">
                                            Couleur
                                        </label>
                                        <div class="flex items-center space-x-2">
                                            <input 
                                                type="color" 
                                                id="scale_{{ value }}_color" 
                                                name="scale_{{ value }}_color" 
                                                value="{{ config.color }}"
                                                class="w-10 h-10 border border-gray-300 rounded-md cursor-pointer"
                                            >
                                            <input 
                                                type="text" 
                                                id="scale_{{ value }}_color_text" 
                                                value="{{ config.color }}"
                                                class="flex-1 px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-green-500 focus:border-green-500"
                                                pattern="#[0-9a-fA-F]{6}"
                                                onchange="syncColor('{{ value }}')"
                                            >
                                        </div>
                                    </div>

                                    <div>
                                        <label for="scale_{{ value }}_included_in_total" class="block text-sm font-medium text-gray-700 mb-1">
                                            Inclusion dans le total
                                        </label>
                                        <select 
                                            id="scale_{{ value }}_included_in_total" 
                                            name="scale_{{ value }}_included_in_total"
                                            class="w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-green-500 focus:border-green-500"
                                        >
                                            <option value="true" {% if config.included_in_total %}selected{% endif %}>✅ Inclus dans le calcul</option>
                                            <option value="false" {% if not config.included_in_total %}selected{% endif %}>❌ Exclu du calcul</option>
                                        </select>
                                        {% if value == '.' %}
                                            <p class="text-xs text-gray-500 mt-1">
                                                Généralement inclus car compte dans le total possible
                                            </p>
                                        {% endif %}
                                    </div>
                                </div>
                            </div>
                        {% endif %}
                    {% endfor %}
                </div>
            </div>

            <!-- Actions -->
            <div class="flex justify-between items-center pt-8 border-t border-gray-200 mt-8">
                <a 
                    href="{{ url_for('config.index') }}" 
                    class="inline-flex items-center px-4 py-2 border border-gray-300 rounded-md shadow-sm text-sm font-medium text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-green-500"
                >
                    <svg class="w-4 h-4 mr-2" fill="currentColor" viewBox="0 0 20 20">
                        <path fill-rule="evenodd" d="M7.707 14.707a1 1 0 01-1.414 0L2.586 11H13a1 1 0 110 2H2.586l3.707 3.707a1 1 0 01-1.414 1.414l-5-5a1 1 0 010-1.414l5-5a1 1 0 011.414 1.414L2.586 9H13a1 1 0 110 2H7.707z" clip-rule="evenodd"/>
                    </svg>
                    Retour
                </a>
                
                <div class="flex space-x-3">
                    <button 
                        type="button"
                        onclick="resetToDefaults()"
                        class="inline-flex items-center px-4 py-2 border border-gray-300 rounded-md shadow-sm text-sm font-medium text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-green-500"
                    >
                        <svg class="w-4 h-4 mr-2" fill="currentColor" viewBox="0 0 20 20">
                            <path fill-rule="evenodd" d="M4 2a1 1 0 011 1v2.101a7.002 7.002 0 0111.601 2.566 1 1 0 11-1.885.666A5.002 5.002 0 005.999 7H9a1 1 0 010 2H4a1 1 0 01-1-1V3a1 1 0 011-1zm.008 9.057a1 1 0 011.276.61A5.002 5.002 0 0014.001 13H11a1 1 0 110-2h5a1 1 0 011 1v5a1 1 0 11-2 0v-2.101a7.002 7.002 0 01-11.601-2.566 1 1 0 01.61-1.276z" clip-rule="evenodd"/>
                        </svg>
                        Valeurs par défaut
                    </button>
                    
                    <button 
                        type="submit"
                        class="inline-flex items-center px-6 py-2 border border-transparent rounded-md shadow-sm text-sm font-medium text-white bg-green-600 hover:bg-green-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-green-500"
                    >
                        <svg class="w-4 h-4 mr-2" fill="currentColor" viewBox="0 0 20 20">
                            <path fill-rule="evenodd" d="M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z" clip-rule="evenodd"/>
                        </svg>
                        Enregistrer les paramètres
                    </button>
                </div>
            </div>
        </form>
    </div>
</div>

<script>
// Synchroniser les champs de couleur
function syncColor(value) {
    const colorPicker = document.getElementById(`scale_${value}_color`);
    const colorText = document.getElementById(`scale_${value}_color_text`);
    
    if (colorText.value.match(/^#[0-9a-fA-F]{6}$/)) {
        colorPicker.value = colorText.value;
    }
}

// Synchroniser tous les color pickers avec leurs champs texte
{% for value, config in competence_scale.items() %}
document.getElementById('scale_{{ value }}_color').addEventListener('input', function() {
    document.getElementById('scale_{{ value }}_color_text').value = this.value;
});
{% endfor %}

// === GESTION DU DÉGRADÉ DE COULEURS POUR LES NOTES ===

// Synchroniser les champs de couleur du dégradé des notes
function syncNotesGradientColor(type) {
    const colorPicker = document.getElementById(`notes_gradient_color_${type}`);
    const colorText = document.getElementById(`notes_gradient_color_${type}_text`);
    
    if (colorText.value.match(/^#[0-9a-fA-F]{6}$/)) {
        colorPicker.value = colorText.value;
        updateNotesGradientPreview();
    }
}

// Synchroniser les color pickers avec leurs champs texte
document.addEventListener('DOMContentLoaded', function() {
    const minPicker = document.getElementById('notes_gradient_color_min');
    const maxPicker = document.getElementById('notes_gradient_color_max');
    
    if (minPicker) {
        minPicker.addEventListener('input', function() {
            document.getElementById('notes_gradient_color_min_text').value = this.value;
            updateNotesGradientPreview();
        });
    }
    
    if (maxPicker) {
        maxPicker.addEventListener('input', function() {
            document.getElementById('notes_gradient_color_max_text').value = this.value;
            updateNotesGradientPreview();
        });
    }
    
    // Initialiser la prévisualisation au chargement
    updateNotesGradientPreview();
});

// Convertir une couleur hex en RGB
function hexToRgb(hex) {
    const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
    return result ? {
        r: parseInt(result[1], 16),
        g: parseInt(result[2], 16),
        b: parseInt(result[3], 16)
    } : null;
}

// Convertir RGB en hex
function rgbToHex(r, g, b) {
    return "#" + ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);
}

// Convertir RGB vers HSL
function rgbToHsl(r, g, b) {
    r /= 255;
    g /= 255;
    b /= 255;

    const max = Math.max(r, g, b);
    const min = Math.min(r, g, b);
    let h, s, l = (max + min) / 2;

    if (max === min) {
        h = s = 0; // achromatic
    } else {
        const d = max - min;
        s = l > 0.5 ? d / (2 - max - min) : d / (max + min);

        switch (max) {
            case r: h = (g - b) / d + (g < b ? 6 : 0); break;
            case g: h = (b - r) / d + 2; break;
            case b: h = (r - g) / d + 4; break;
        }
        h /= 6;
    }

    return { h: h * 360, s: s * 100, l: l * 100 };
}

// Convertir HSL vers RGB
function hslToRgb(h, s, l) {
    h /= 360;
    s /= 100;
    l /= 100;

    const hue2rgb = (p, q, t) => {
        if (t < 0) t += 1;
        if (t > 1) t -= 1;
        if (t < 1/6) return p + (q - p) * 6 * t;
        if (t < 1/2) return q;
        if (t < 2/3) return p + (q - p) * (2/3 - t) * 6;
        return p;
    };

    let r, g, b;

    if (s === 0) {
        r = g = b = l; // achromatic
    } else {
        const q = l < 0.5 ? l * (1 + s) : l + s - l * s;
        const p = 2 * l - q;
        r = hue2rgb(p, q, h + 1/3);
        g = hue2rgb(p, q, h);
        b = hue2rgb(p, q, h - 1/3);
    }

    return {
        r: Math.round(r * 255),
        g: Math.round(g * 255),
        b: Math.round(b * 255)
    };
}

// Interpoler entre deux couleurs en HSL pour un rendu plus naturel
function interpolateColorHSL(color1, color2, factor) {
    const rgb1 = hexToRgb(color1);
    const rgb2 = hexToRgb(color2);
    
    if (!rgb1 || !rgb2) return color1;
    
    const hsl1 = rgbToHsl(rgb1.r, rgb1.g, rgb1.b);
    const hsl2 = rgbToHsl(rgb2.r, rgb2.g, rgb2.b);
    
    // Interpolation en HSL
    let h1 = hsl1.h;
    let h2 = hsl2.h;
    
    // Gérer la transition des teintes (éviter le long chemin autour du cercle)
    let deltaH = h2 - h1;
    if (deltaH > 180) {
        h2 -= 360;
    } else if (deltaH < -180) {
        h2 += 360;
    }
    
    const h = h1 + (h2 - h1) * factor;
    const s = hsl1.s + (hsl2.s - hsl1.s) * factor;
    const l = hsl1.l + (hsl2.l - hsl1.l) * factor;
    
    // Normaliser la teinte
    const normalizedH = ((h % 360) + 360) % 360;
    
    const rgb = hslToRgb(normalizedH, s, l);
    return rgbToHex(rgb.r, rgb.g, rgb.b);
}

// Fonction de compatibilité (utilise maintenant HSL)
function interpolateColor(color1, color2, factor) {
    return interpolateColorHSL(color1, color2, factor);
}

// Calculer la couleur d'une note selon sa valeur relative
function calculateNoteColor(note, maxPoints, minColor, maxColor) {
    if (!minColor || !maxColor || maxPoints <= 0) return '#6b7280'; // Gris par défaut
    
    const factor = Math.max(0, Math.min(1, note / maxPoints)); // Borner entre 0 et 1
    return interpolateColor(minColor, maxColor, factor);
}

// Mettre à jour la prévisualisation du dégradé des notes
function updateNotesGradientPreview() {
    const minColor = document.getElementById('notes_gradient_color_min')?.value;
    const maxColor = document.getElementById('notes_gradient_color_max')?.value;
    
    if (!minColor || !maxColor) return;
    
    // Créer une barre de dégradé avec plusieurs stops HSL pour éviter le gris CSS
    const gradientBar = document.getElementById('gradient-bar');
    if (gradientBar) {
        // Créer 10 stops pour un dégradé fluide en HSL
        const stops = [];
        for (let i = 0; i <= 10; i++) {
            const factor = i / 10;
            const color = interpolateColorHSL(minColor, maxColor, factor);
            stops.push(`${color} ${factor * 100}%`);
        }
        
        gradientBar.style.background = `linear-gradient(to right, ${stops.join(', ')})`;
    }
    
    // Exemples sur 20 points (25%, 50%, 75% seulement car 0% et 100% sont déjà visibles)
    const examples = [
        { percent: 0.25, note: 5, id: 'notes-preview-25' },
        { percent: 0.5, note: 10, id: 'notes-preview-50' },
        { percent: 0.75, note: 15, id: 'notes-preview-75' }
    ];
    
    examples.forEach(example => {
        const preview = document.getElementById(example.id);
        if (preview) {
            const color = interpolateColorHSL(minColor, maxColor, example.percent);
            preview.style.backgroundColor = color;
            
            // Ajuster la couleur du texte pour la lisibilité
            const rgb = hexToRgb(color);
            if (rgb) {
                const brightness = (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000;
                preview.style.color = brightness > 128 ? '#000000' : '#ffffff';
            }
        }
    });
}

// Sauvegarder la configuration du dégradé des notes
function saveNotesGradientConfig() {
    const minColor = document.getElementById('notes_gradient_color_min').value;
    const maxColor = document.getElementById('notes_gradient_color_max').value;
    
    if (!minColor || !maxColor) {
        alert('Veuillez sélectionner les couleurs minimum et maximum');
        return;
    }
    
    if (!confirm('Sauvegarder cette configuration de dégradé pour les notes ?')) {
        return;
    }
    
    // Créer un formulaire pour envoyer les données
    const form = document.createElement('form');
    form.method = 'POST';
    form.action = '{{ url_for("config.save_notes_gradient") }}';
    
    const minInput = document.createElement('input');
    minInput.type = 'hidden';
    minInput.name = 'notes_gradient_min_color';
    minInput.value = minColor;
    
    const maxInput = document.createElement('input');
    maxInput.type = 'hidden';
    maxInput.name = 'notes_gradient_max_color';
    maxInput.value = maxColor;
    
    form.appendChild(minInput);
    form.appendChild(maxInput);
    document.body.appendChild(form);
    form.submit();
}

// Fonction globale pour calculer la couleur d'une note (utilisable ailleurs)
window.getNotesGradientColor = function(note, maxPoints) {
    // Récupérer les couleurs configurées
    const minColor = '{{ notes_gradient.min_color }}';
    const maxColor = '{{ notes_gradient.max_color }}';
    const enabled = {{ notes_gradient.enabled|tojson }};
    
    // Si le dégradé n'est pas activé, retourner une couleur neutre
    if (!enabled) return '#6b7280';
    
    return calculateNoteColor(note, maxPoints, minColor, maxColor);
};

// Réinitialiser aux valeurs par défaut
function resetToDefaults() {
    if (confirm('Êtes-vous sûr de vouloir restaurer l\'échelle par défaut ? Toutes vos modifications seront perdues.')) {
        fetch('{{ url_for("config.reset_scale") }}', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
        }).then(response => {
            if (response.ok) {
                location.reload();
            }
        });
    }
}

// Ajouter une valeur spéciale
function showAddSpecialValue() {
    const value = prompt('Entrez la valeur spéciale (ex: NA, X, etc.) :');
    if (value && value.trim()) {
        const label = prompt('Entrez le libellé pour cette valeur :');
        if (label && label.trim()) {
            const color = prompt('Entrez la couleur (hex, ex: #ff0000) :', '#6b7280');
            const included = confirm('Cette valeur doit-elle être incluse dans le calcul du total ?');
            
            // Créer un formulaire temporaire pour envoyer les données
            const form = document.createElement('form');
            form.method = 'POST';
            form.action = '{{ url_for("config.add_scale_value") }}';
            
            const valueInput = document.createElement('input');
            valueInput.type = 'hidden';
            valueInput.name = 'value';
            valueInput.value = value.trim();
            
            const labelInput = document.createElement('input');
            labelInput.type = 'hidden';
            labelInput.name = 'label';
            labelInput.value = label.trim();
            
            const colorInput = document.createElement('input');
            colorInput.type = 'hidden';
            colorInput.name = 'color';
            colorInput.value = color || '#6b7280';
            
            const includedInput = document.createElement('input');
            includedInput.type = 'hidden';
            includedInput.name = 'included_in_total';
            includedInput.value = included ? 'true' : 'false';
            
            form.appendChild(valueInput);
            form.appendChild(labelInput);
            form.appendChild(colorInput);
            form.appendChild(includedInput);
            
            document.body.appendChild(form);
            form.submit();
        }
    }
}

// Supprimer une valeur spéciale
function deleteSpecialValue(value, label) {
    if (confirm(`Êtes-vous sûr de vouloir supprimer la valeur "${value}" (${label}) ?`)) {
        const form = document.createElement('form');
        form.method = 'POST';
        form.action = `{{ url_for("config.delete_scale_value", value="PLACEHOLDER") }}`.replace('PLACEHOLDER', encodeURIComponent(value));
        
        document.body.appendChild(form);
        form.submit();
    }
}
</script>
{% endblock %}