重构模型管理和配置加载逻辑，支持多模态和推理模型，优化API密钥管理，改进前端模型选择和版本显示

static/js/settings.js

@@ -1,8 +1,147 @@
 class SettingsManager {
     constructor() {
+        // 初始化属性
+        this.modelDefinitions = {};
+        this.providerDefinitions = {};
+        
+        // 初始化界面元素
         this.initializeElements();
-        this.loadSettings();
-        this.setupEventListeners();
+        
+        // 加载模型配置
+        this.loadModelConfig()
+            .then(() => {
+                // 成功加载配置后，执行后续初始化
+                this.updateModelOptions();
+                this.loadSettings();
+                this.setupEventListeners();
+                this.updateUIBasedOnModelType();
+            })
+            .catch(error => {
+                console.error('加载模型配置失败:', error);
+                window.uiManager?.showToast('加载模型配置失败，使用默认配置', 'error');
+                
+                // 使用默认配置作为备份
+                this.setupDefaultModels();
+                this.updateModelOptions();
+                this.loadSettings();
+                this.setupEventListeners();
+                this.updateUIBasedOnModelType();
+            });
+    }
+
+    // 从配置文件加载模型定义
+    async loadModelConfig() {
+        try {
+            // 使用API端点获取模型列表
+            const response = await fetch('/api/models');
+            if (!response.ok) {
+                throw new Error(`加载模型列表失败: ${response.status} ${response.statusText}`);
+            }
+            
+            // 获取模型列表
+            const modelsList = await response.json();
+            
+            // 获取提供商配置
+            const configResponse = await fetch('/config/models.json');
+            if (!configResponse.ok) {
+                throw new Error(`加载提供商配置失败: ${configResponse.status} ${configResponse.statusText}`);
+            }
+            
+            const config = await configResponse.json();
+            
+            // 保存提供商定义
+            this.providerDefinitions = config.providers || {};
+            
+            // 处理模型定义
+            this.modelDefinitions = {};
+            
+            // 从API获取的模型列表创建模型定义
+            modelsList.forEach(model => {
+                this.modelDefinitions[model.id] = {
+                    name: model.display_name,
+                    provider: this.getProviderIdByModel(model.id, config),
+                    supportsMultimodal: model.is_multimodal,
+                    isReasoning: model.is_reasoning,
+                    apiKeyId: this.getApiKeyIdByModel(model.id, config),
+                    description: model.description,
+                    version: this.getVersionByModel(model.id, config)
+                };
+            });
+            
+            console.log('模型配置加载成功:', this.modelDefinitions);
+        } catch (error) {
+            console.error('加载模型配置时出错:', error);
+            throw error;
+        }
+    }
+    
+    // 从配置中根据模型ID获取提供商ID
+    getProviderIdByModel(modelId, config) {
+        const modelConfig = config.models[modelId];
+        return modelConfig ? modelConfig.provider : 'unknown';
+    }
+    
+    // 从配置中根据模型ID获取API密钥ID
+    getApiKeyIdByModel(modelId, config) {
+        const modelConfig = config.models[modelId];
+        if (!modelConfig) return null;
+        
+        const providerId = modelConfig.provider;
+        const provider = config.providers[providerId];
+        return provider ? provider.api_key_id : null;
+    }
+    
+    // 从配置中根据模型ID获取版本信息
+    getVersionByModel(modelId, config) {
+        const modelConfig = config.models[modelId];
+        return modelConfig ? modelConfig.version : 'latest';
+    }
+
+    // 设置默认模型定义（当配置加载失败时使用）
+    setupDefaultModels() {
+        this.providerDefinitions = {
+            'anthropic': {
+                name: 'Anthropic',
+                api_key_id: 'AnthropicApiKey'
+            },
+            'openai': {
+                name: 'OpenAI',
+                api_key_id: 'OpenaiApiKey'
+            },
+            'deepseek': {
+                name: 'DeepSeek',
+                api_key_id: 'DeepseekApiKey'
+            }
+        };
+        
+        this.modelDefinitions = {
+            'claude-3-7-sonnet-20250219': {
+                name: 'Claude 3.7 Sonnet',
+                provider: 'anthropic',
+                supportsMultimodal: true,
+                isReasoning: true,
+                apiKeyId: 'AnthropicApiKey',
+                version: '20250219'
+            },
+            'gpt-4o-2024-11-20': {
+                name: 'GPT-4o',
+                provider: 'openai',
+                supportsMultimodal: true,
+                isReasoning: false,
+                apiKeyId: 'OpenaiApiKey',
+                version: '2024-11-20'
+            },
+            'deepseek-reasoner': {
+                name: 'DeepSeek Reasoner',
+                provider: 'deepseek',
+                supportsMultimodal: false,
+                isReasoning: true,
+                apiKeyId: 'DeepseekApiKey',
+                version: 'latest'
+            }
+        };
+        
+        console.log('使用默认模型配置');
     }
 
     initializeElements() {
@@ -11,6 +150,8 @@ class SettingsManager {
         this.modelSelect = document.getElementById('modelSelect');
         this.temperatureInput = document.getElementById('temperature');
         this.temperatureValue = document.getElementById('temperatureValue');
+        this.temperatureGroup = document.querySelector('.setting-group:has(#temperature)') || 
+                              document.querySelector('div.setting-group:has(input[id="temperature"])');
         this.systemPromptInput = document.getElementById('systemPrompt');
         this.languageInput = document.getElementById('language');
         this.proxyEnabledInput = document.getElementById('proxyEnabled');
@@ -22,25 +163,29 @@ class SettingsManager {
         this.mathpixAppIdInput = document.getElementById('mathpixAppId');
         this.mathpixAppKeyInput = document.getElementById('mathpixAppKey');
         
-        // API Key elements
+        // API Key elements - 所有的密钥输入框
         this.apiKeyInputs = {
-            'claude-3-7-sonnet-20250219': document.getElementById('claudeApiKey'),
-            'gpt-4o-2024-11-20': document.getElementById('gpt4oApiKey'),
-            'deepseek-reasoner': document.getElementById('deepseekApiKey')
+            'AnthropicApiKey': document.getElementById('AnthropicApiKey'),
+            'OpenaiApiKey': document.getElementById('OpenaiApiKey'),
+            'DeepseekApiKey': document.getElementById('DeepseekApiKey'),
+            'mathpixAppId': this.mathpixAppIdInput,
+            'mathpixAppKey': this.mathpixAppKeyInput
         };
         
         // Settings toggle elements
         this.settingsToggle = document.getElementById('settingsToggle');
         this.closeSettings = document.getElementById('closeSettings');
+        
+        // 获取所有密钥输入组元素
         this.apiKeyGroups = document.querySelectorAll('.api-key-group');
         
         // Initialize API key toggle buttons
         document.querySelectorAll('.toggle-api-key').forEach(button => {
             button.addEventListener('click', (e) => {
-                const input = e.target.closest('.input-group').querySelector('input');
+                const input = e.currentTarget.closest('.input-group').querySelector('input');
                 const type = input.type === 'password' ? 'text' : 'password';
                 input.type = type;
-                const icon = e.target.querySelector('i');
+                const icon = e.currentTarget.querySelector('i');
                 if (icon) {
                     icon.className = `fas fa-${type === 'password' ? 'eye' : 'eye-slash'}`;
                 }
@@ -48,6 +193,49 @@ class SettingsManager {
         });
     }
 
+    // 更新模型选择下拉框
+    updateModelOptions() {
+        // 清空现有选项
+        this.modelSelect.innerHTML = '';
+        
+        // 提取提供商信息
+        const providers = {};
+        Object.entries(this.providerDefinitions).forEach(([providerId, provider]) => {
+            providers[providerId] = provider.name;
+        });
+        
+        // 为每个提供商创建一个选项组
+        for (const [providerId, providerName] of Object.entries(providers)) {
+            const optgroup = document.createElement('optgroup');
+            optgroup.label = providerName;
+            
+            // 过滤该提供商的模型
+            const providerModels = Object.entries(this.modelDefinitions)
+                .filter(([_, modelInfo]) => modelInfo.provider === providerId)
+                .sort((a, b) => a[1].name.localeCompare(b[1].name));
+            
+            // 添加该提供商的模型选项
+            for (const [modelId, modelInfo] of providerModels) {
+                const option = document.createElement('option');
+                option.value = modelId;
+                
+                // 显示模型名称和版本（如果不是latest）
+                let displayName = modelInfo.name;
+                if (modelInfo.version && modelInfo.version !== 'latest') {
+                    displayName += ` (${modelInfo.version})`;
+                }
+                
+                option.textContent = displayName;
+                optgroup.appendChild(option);
+            }
+            
+            // 只添加有模型的提供商
+            if (optgroup.children.length > 0) {
+                this.modelSelect.appendChild(optgroup);
+            }
+        }
+    }
+
     loadSettings() {
         const settings = JSON.parse(localStorage.getItem('aiSettings') || '{}');
         
@@ -61,21 +249,28 @@ class SettingsManager {
         
         // Load API keys
         if (settings.apiKeys) {
-            Object.entries(this.apiKeyInputs).forEach(([model, input]) => {
-                if (settings.apiKeys[model]) {
-                    input.value = settings.apiKeys[model];
+            Object.entries(this.apiKeyInputs).forEach(([keyId, input]) => {
+                if (settings.apiKeys[keyId]) {
+                    input.value = settings.apiKeys[keyId];
                 }
             });
         }
         
-        if (settings.model) {
-            this.modelSelect.value = settings.model;
-            this.updateVisibleApiKey(settings.model);
+        // 选择模型并更新相关UI
+        let selectedModel = '';
+        
+        if (settings.model && this.modelExists(settings.model)) {
+            selectedModel = settings.model;
+            this.modelSelect.value = selectedModel;
         } else {
-            // Default to first model if none selected
-            this.updateVisibleApiKey(this.modelSelect.value);
+            // Default to first model if none selected or if saved model no longer exists
+            selectedModel = this.modelSelect.value;
         }
         
+        // 更新相关UI显示
+        this.updateVisibleApiKey(selectedModel);
+        this.updateModelVersionDisplay(selectedModel);
+        
         if (settings.temperature) {
             this.temperatureInput.value = settings.temperature;
             this.temperatureValue.textContent = settings.temperature;
@@ -89,13 +284,74 @@ class SettingsManager {
         if (settings.proxyPort) this.proxyPortInput.value = settings.proxyPort;
         
         this.proxySettings.style.display = this.proxyEnabledInput.checked ? 'block' : 'none';
+        
+        this.updateUIBasedOnModelType();
+    }
+
+    modelExists(modelId) {
+        return this.modelDefinitions.hasOwnProperty(modelId);
+    }
+
+    // 更新模型版本显示
+    updateModelVersionDisplay(modelId) {
+        const modelVersionText = document.getElementById('modelVersionText');
+        if (!modelVersionText) return;
+        
+        const model = this.modelDefinitions[modelId];
+        if (!model) {
+            modelVersionText.textContent = '-';
+            return;
+        }
+        
+        // 显示版本信息（如果有）
+        if (model.version && model.version !== 'latest') {
+            modelVersionText.textContent = model.version;
+        } else if (model.version === 'latest') {
+            modelVersionText.textContent = '最新版';
+        } else {
+            modelVersionText.textContent = '-';
+        }
     }
 
     updateVisibleApiKey(selectedModel) {
+        const modelInfo = this.modelDefinitions[selectedModel];
+        if (!modelInfo) return;
+        
+        const requiredApiKeyId = modelInfo.apiKeyId;
+        const providerInfo = this.providerDefinitions[modelInfo.provider];
+        
+        // 更新API密钥标签突出显示，而不是隐藏不需要的密钥
         this.apiKeyGroups.forEach(group => {
-            const modelValue = group.dataset.model;
-            group.style.display = modelValue === selectedModel ? 'block' : 'none';
+            const keyInputId = group.querySelector('input').id;
+            const isRequired = keyInputId === requiredApiKeyId;
+            
+            // 为需要的API密钥添加突出显示样式
+            if (isRequired) {
+                group.classList.add('api-key-active');
+            } else {
+                group.classList.remove('api-key-active');
+            }
+            
+            // 更新Mathpix相关输入框的必要性
+            if ((keyInputId === 'mathpixAppId' || keyInputId === 'mathpixAppKey') && 
+                !modelInfo.supportsMultimodal) {
+                group.classList.add('api-key-active');  // 非多模态模型需要Mathpix
+            }
         });
+        
+        // 更新模型版本显示
+        this.updateModelVersionDisplay(selectedModel);
+    }
+
+    updateUIBasedOnModelType() {
+        const selectedModel = this.modelSelect.value;
+        const modelInfo = this.modelDefinitions[selectedModel];
+        
+        if (!modelInfo) return;
+        
+        if (this.temperatureGroup) {
+            this.temperatureGroup.style.display = modelInfo.isReasoning ? 'none' : 'block';
+        }
     }
 
     saveSettings() {
@@ -113,9 +369,9 @@ class SettingsManager {
         };
 
         // Save all API keys
-        Object.entries(this.apiKeyInputs).forEach(([model, input]) => {
+        Object.entries(this.apiKeyInputs).forEach(([keyId, input]) => {
             if (input.value) {
-                settings.apiKeys[model] = input.value;
+                settings.apiKeys[keyId] = input.value;
             }
         });
 
@@ -125,7 +381,12 @@ class SettingsManager {
 
     getApiKey() {
         const selectedModel = this.modelSelect.value;
-        const apiKey = this.apiKeyInputs[selectedModel]?.value;
+        const modelInfo = this.modelDefinitions[selectedModel];
+        
+        if (!modelInfo) return '';
+        
+        const apiKeyId = modelInfo.apiKeyId;
+        const apiKey = this.apiKeyInputs[apiKeyId]?.value;
         
         if (!apiKey) {
             window.showToast('Please enter API key for the selected model', 'error');
@@ -139,22 +400,38 @@ class SettingsManager {
         const language = this.languageInput.value || '中文';
         const basePrompt = this.systemPromptInput.value || '';
         
-        // 检查系统提示词是否已包含语言设置
         let systemPrompt = basePrompt;
         if (!basePrompt.includes('Please respond in') && !basePrompt.includes('请用') && !basePrompt.includes('使用')) {
             systemPrompt = `${basePrompt}\n\n请务必使用${language}回答。`;
         }
         
+        const selectedModel = this.modelSelect.value;
+        const modelInfo = this.modelDefinitions[selectedModel] || {};
+        
         return {
-            model: this.modelSelect.value,
+            model: selectedModel,
             temperature: this.temperatureInput.value,
             language: language,
             systemPrompt: systemPrompt,
             proxyEnabled: this.proxyEnabledInput.checked,
             proxyHost: this.proxyHostInput.value,
             proxyPort: this.proxyPortInput.value,
-            mathpixAppId: this.mathpixAppIdInput.value,
-            mathpixAppKey: this.mathpixAppKeyInput.value
+            mathpixApiKey: `${this.mathpixAppIdInput.value}:${this.mathpixAppKeyInput.value}`,
+            modelInfo: {
+                supportsMultimodal: modelInfo.supportsMultimodal || false,
+                isReasoning: modelInfo.isReasoning || false,
+                provider: modelInfo.provider || 'unknown'
+            }
+        };
+    }
+
+    getModelCapabilities(modelId) {
+        const model = this.modelDefinitions[modelId];
+        if (!model) return { supportsMultimodal: false, isReasoning: false };
+        
+        return {
+            supportsMultimodal: model.supportsMultimodal,
+            isReasoning: model.isReasoning
         };
     }
 
@@ -170,6 +447,8 @@ class SettingsManager {
 
         this.modelSelect.addEventListener('change', (e) => {
             this.updateVisibleApiKey(e.target.value);
+            this.updateUIBasedOnModelType();
+            this.updateModelVersionDisplay(e.target.value);
             this.saveSettings();
         });