DeepSeek-HTML-Chat/index.html at main · zip8919/DeepSeek-HTML-Chat · GitHub

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<!DOCTYPE html>
<!--suppress BuyFluidPluginNoteInspection -->
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>AI对话</title>
    <link rel="icon" href="./style/favicon.ico" type="image/x-icon">
    <script src="https://cdn.mengze.vip/npm/marked/marked.min.js"></script>
    <link rel="stylesheet" href="https://cdn.mengze.vip/npm/katex@0.16.9/dist/katex.min.css">
    <script defer src="https://cdn.mengze.vip/npm/katex@0.16.9/dist/katex.min.js"></script>
    <script defer src="https://cdn.mengze.vip/npm/katex@0.16.9/dist/contrib/auto-render.min.js"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github-dark-dimmed.min.css">
    <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
    <link rel="stylesheet" href="./style/style.css">
    <script>hljs.highlightAll();</script>

</head>
<body>
    <div class="header">
        <h1>AI对话助手<span style="color:#3498db;"></span></h1>
    </div>

    <div class="chat-container">
        <div class="config-toggle" id="configToggle">⚙️</div>

        <div class="chat-messages" id="chatMessages">
            <div class="message assistant-message">
                <div class="message-content">
                    <p>您好！我是AI助手。</p>
                    <p>请点击右上角⚙️按钮进行配置。</p>
                    <p>请在下方输入问题，我会立即开始回复。</p>
                </div>
            </div>
        </div>

        <div class="input-area">
            <div class="preset-selection" id="presetSelection">
                <!-- 预设提示词按钮将通过JS动态生成 -->
            </div>
            <div class="input-group">
                <input type="text" id="messageInput" placeholder="输入您的问题..." autocomplete="off">
                <button id="sendButton">发送</button>
            </div>
            <div class="error-message" id="errorDiv"></div>
        </div>
    </div>

    <div id="configPanel" class="config-panel" style="display:none">
        <div class="config-box">
            <h2>AI 助手配置</h2>

            <div class="config-group">
                <label for="apiKey">API Key<a href="https://cloud.siliconflow.cn/i/DGvm1ov3">新用户注册送14元余额</a></label>
                <input type="text" name="username" autocomplete="username" style="display:none">
                <input type="password" id="apiKey" placeholder="输入API Key">
            </div>

            <div class="config-group">
                <label for="model">模型</label>
                <input type="text" id="model" value="deepseek-ai/DeepSeek-V3">
            </div>

            <!-- 新增：提示词配置 -->
            <div class="config-group">
                <label>提示词设置</label>
                <select id="presetPrompt" class="config-group">
                    <option value="default">默认</option>
                    <option value="math">数学专家</option>
                    <option value="code">编程专家</option>
                    <option value="creative">创意写作</option>
                    <option value="custom">自定义提示词</option>
                </select>
            </div>

            <div class="config-group" id="customPromptGroup" style="display:none">
                <label for="customPrompt">自定义提示词</label>
                <textarea id="customPrompt" rows="6" placeholder="输入自定义系统提示词..."></textarea>
            </div>

            <div class="config-actions">
                <button class="close-btn" id="closeConfig">关闭</button>
                <button class="save-btn" id="saveConfig">保存</button>
            </div>
        </div>
    </div>

<script>
    // 预设提示词模板
const PROMPT_PRESETS = {
    default: {
        name: "默认助手",
        content: "你是一个乐于助人的AI助手。"
    },
    math: {
        name: "数学专家",
        content: "你是一名数学专家，专注于解决数学问题。请使用严谨的数学语言和步骤解答问题，确保公式使用$...$或$$...$$正确渲染。"
    },
    code: {
        name: "编程专家",
        content: "你是一名编程专家，精通多种编程语言。请用清晰简洁的代码和解释回答编程问题，代码部分请用Markdown代码块包裹。"
    },
    creative: {
        name: "创意写作",
        content: "你是一位创意作家，擅长创作故事、诗歌和散文。请用富有想象力和文学性的语言回复，注重情感表达和修辞手法。"
    },
    custom: {
        name: "自定义",
        content: ""
    }
};

// 配置常量
const CONFIG = {
    maxLength: 8000,
    maxHistory: 4,
    maxContext: 4096,
    timeout: 30000,
    temperature: 0.7,
    maxTokens: 1000
};

// DOM元素
const chatMessages = document.getElementById('chatMessages');
const messageInput = document.getElementById('messageInput');
const sendButton = document.getElementById('sendButton');
const configPanel = document.getElementById('configPanel');
const configToggle = document.getElementById('configToggle');
const apiKeyInput = document.getElementById('apiKey');
const modelInput = document.getElementById('model');
const presetPromptSelect = document.getElementById('presetPrompt');
const customPromptGroup = document.getElementById('customPromptGroup');
const customPromptInput = document.getElementById('customPrompt');
const saveConfigBtn = document.getElementById('saveConfig');
const closeConfigBtn = document.getElementById('closeConfig');
const errorDiv = document.getElementById('errorDiv');
const presetSelection = document.getElementById('presetSelection');

// 应用状态
let chatHistory = [];
let userConfig = {
    apiKey: '',
    model: 'deepseek-ai/DeepSeek-V3',
    presetPrompt: 'default',
    customPrompt: ''
};

// 当前流式响应状态
let isStreaming = false;
let currentBotMessage = null;
let currentReasoning = '';  // 累积思考内容
let currentFinalContent = '';  // 累积最终回答内容
let thinkingContainer = null;  // 思考内容容器

// 初始化
document.addEventListener('DOMContentLoaded', () => {
    loadConfig();
    messageInput.focus();
    renderPresetButtons();

    // 配置Marked.js
    marked.setOptions({
        breaks: true,
        highlight: function(code, lang) {
            if (lang && hljs.getLanguage(lang)) {
                try {
                    return hljs.highlight(code, { language: lang }).value;
                } catch (e) {
                    console.warn('代码高亮错误:', e);
                    return code;
                }
            }
            return hljs.highlightAuto(code).value;
        }
    });

    // 添加KaTeX渲染函数
    window.renderMath = function(element = document.body) {
        try {
            renderMathInElement(element, {
                delimiters: [
                    {left: "$$", right: "$$", display: true},
                    {left: "$", right: "$", display: false}
                ],
                throwOnError: false,
                output: 'html'
            });
        } catch (error) {
            console.error('KaTeX渲染错误:', error);
            const errorElement = document.createElement('div');
            errorElement.className = 'formula-error';
            errorElement.textContent = `公式渲染错误: ${error.message}`;
            element.appendChild(errorElement);
        }
    };

    // 初始渲染
    window.renderMath();

    // 添加折叠事件委托
    chatMessages.addEventListener('click', (e) => {
        if (e.target && e.target.classList.contains('toggle-thinking')) {
            const header = e.target.closest('.thinking-header');
            if (header) {
                const content = header.nextElementSibling;
                if (content.classList.contains('collapsed')) {
                    content.classList.remove('collapsed');
                    e.target.textContent = '▼';
                } else {
                    content.classList.add('collapsed');
                    e.target.textContent = '►';
                }
            }
        }
    });

    // 提示词选择器变更事件
    presetPromptSelect.addEventListener('change', function() {
        if (this.value === 'custom') {
            customPromptGroup.style.display = 'block';
        } else {
            customPromptGroup.style.display = 'none';
        }
    });

});

// 渲染预设提示词按钮
function renderPresetButtons() {
    presetSelection.innerHTML = '';

    Object.keys(PROMPT_PRESETS).forEach(key => {
        if (key !== 'custom') {
            const preset = PROMPT_PRESETS[key];
            const btn = document.createElement('button');
            btn.className = 'preset-btn';
            btn.textContent = preset.name;
            btn.dataset.preset = key;

            if (userConfig.presetPrompt === key) {
                btn.classList.add('active');
            }

            btn.addEventListener('click', function() {
                // 高亮当前选择的预设
                document.querySelectorAll('.preset-btn').forEach(b => b.classList.remove('active'));
                this.classList.add('active');

                // 更新配置
                userConfig.presetPrompt = key;
                if (key !== 'custom') {
                    userConfig.customPrompt = '';
                }
                saveConfigToStorage();

                // 显示成功消息
                showError(`已切换为: ${preset.name}`, 'success');
            });

            presetSelection.appendChild(btn);
        }
    });
}

// 加载保存的配置
function loadConfig() {
    const savedConfig = localStorage.getItem('aiConfig');
    if (savedConfig) {
        userConfig = JSON.parse(savedConfig);
        apiKeyInput.value = userConfig.apiKey || '';
        modelInput.value = userConfig.model || 'deepseek-ai/DeepSeek-V3';
        presetPromptSelect.value = userConfig.presetPrompt || 'default';
        customPromptInput.value = userConfig.customPrompt || '';

        // 显示自定义提示词区域
        if (userConfig.presetPrompt === 'custom') {
            customPromptGroup.style.display = 'block';
        }
    }

    // 保存到storage确保所有字段都存在
    saveConfigToStorage();
}

// 保存配置到storage
function saveConfigToStorage() {
    localStorage.setItem('aiConfig', JSON.stringify(userConfig));
}

// 保存配置
function saveConfig() {
    userConfig = {
        apiKey: apiKeyInput.value,
        model: modelInput.value,
        presetPrompt: presetPromptSelect.value,
        customPrompt: presetPromptSelect.value === 'custom' ? customPromptInput.value : ''
    };

    saveConfigToStorage();
    configPanel.style.display = 'none';
    renderPresetButtons();
    showError('配置已保存', 'success');
}

// 显示错误消息
function showError(message, type = 'error') {
    errorDiv.textContent = message;
    errorDiv.style.display = 'block';
    errorDiv.style.background = type === 'error' ? '#ff6b6b' : '#2ecc71';

    setTimeout(() => {
        errorDiv.style.display = 'none';
    }, 3000);
}

// 事件监听器
messageInput.addEventListener('keypress', (e) => {
    if (e.key === 'Enter' && !e.shiftKey) {
        e.preventDefault();
        sendMessage();
    }
});

sendButton.addEventListener('click', sendMessage);
configToggle.addEventListener('click', () => configPanel.style.display = 'flex');
closeConfigBtn.addEventListener('click', () => configPanel.style.display = 'none');
saveConfigBtn.addEventListener('click', saveConfig);

// 添加消息到界面
function addMessage(content, role) {
    const messageDiv = document.createElement('div');
    messageDiv.className = `message ${role}-message`;

    const contentDiv = document.createElement('div');
    contentDiv.className = 'message-content';

    // 如果是AI消息，使用Markdown渲染
    if (role === 'assistant') {
        contentDiv.innerHTML = marked.parse(content);
    } else {
        contentDiv.textContent = content;
    }

    messageDiv.appendChild(contentDiv);
    chatMessages.appendChild(messageDiv);

    // 滚动到底部
    chatMessages.scrollTop = chatMessages.scrollHeight;

    // 渲染公式
    window.renderMath(contentDiv);

    // 高亮代码
    contentDiv.querySelectorAll('pre code').forEach((block) => {
        hljs.highlightElement(block);
    });

    return messageDiv;
}

// 显示AI正在思考
function showThinking() {
    const thinkingDiv = document.createElement('div');
    thinkingDiv.className = 'assistant-thinking';
    thinkingDiv.id = 'thinkingIndicator';

    thinkingDiv.innerHTML = `
        <div class="typing-indicator">
            <div class="typing-dot"></div>
            <div class="typing-dot"></div>
            <div class="typing-dot"></div>
        </div>
        <span>思考中...</span>
    `;

    chatMessages.appendChild(thinkingDiv);
    chatMessages.scrollTop = chatMessages.scrollHeight;
}

// 隐藏思考指示器
function hideThinking() {
    const thinking = document.getElementById('thinkingIndicator');
    if (thinking) thinking.remove();
}

// 发送消息主函数（流式版本）
async function sendMessage() {
    const message = messageInput.value.trim();
    if (!message) return;

    // 检查配置
    if (!userConfig.apiKey) {
        showError('请先配置API Key');
        configPanel.style.display = 'flex';
        return;
    }

    messageInput.disabled = true;
    sendButton.disabled = true;

    // 添加用户消息
    addMessage(message, 'user');
    chatHistory.push({ role: 'user', content: message });
    messageInput.value = '';

    // 显示思考中
    showThinking();

    // 重置流式响应状态
    currentReasoning = '';
    currentFinalContent = '';
    thinkingContainer = null;

    try {
        // 构建消息链
        const messagesChain = buildMessagesChain(message);

        // 创建AI消息容器
        currentBotMessage = document.createElement('div');
        currentBotMessage.className = 'message assistant-message';

        const contentDiv = document.createElement('div');
        contentDiv.className = 'message-content';
        contentDiv.id = 'streamingContent';

        currentBotMessage.appendChild(contentDiv);
        chatMessages.appendChild(currentBotMessage);
        hideThinking();

        // 滚动到底部
        chatMessages.scrollTop = chatMessages.scrollHeight;

        // 调用流式API
        await callStreamingAPI(messagesChain, (reasoning, content) => {
            if (!currentBotMessage) return;

            const contentDiv = currentBotMessage.querySelector('.message-content');
            if (contentDiv) {
                // 更新内容
                updateContent(contentDiv, reasoning, content);

                // 滚动到底部
                chatMessages.scrollTop = chatMessages.scrollHeight;
            }
        });

        // 完成响应
        if (currentBotMessage) {
            const contentDiv = currentBotMessage.querySelector('.message-content');
            if (contentDiv) {
                // 添加到历史记录
                chatHistory.push({
                    role: 'assistant',
                    content: contentDiv.textContent || ''
                });
            }

            currentBotMessage = null;
        }

    } catch (error) {
        console.error('请求异常:', error);
        hideThinking();

        if (currentBotMessage) {
            currentBotMessage.remove();
            currentBotMessage = null;
        }

        showError(`处理请求时出错: ${error.message}`);

    } finally {
        messageInput.disabled = false;
        sendButton.disabled = false;
        messageInput.focus();
    }
}

// 更新消息内容
function updateContent(contentDiv, reasoning, content) {
    // 更新思考内容
    if (reasoning !== null && reasoning !== '') {
        currentReasoning += reasoning;

        // 创建思考容器（如果不存在）
        if (!thinkingContainer) {
            thinkingContainer = document.createElement('div');
            thinkingContainer.className = 'thinking-container';
            thinkingContainer.innerHTML = `
                <div class="thinking-header">
                    <button class="toggle-thinking">▼</button>
                    <span>思考过程</span>
                </div>
                <div class="thinking-content">${marked.parse(currentReasoning)}</div>
            `;
            contentDiv.appendChild(thinkingContainer);

            // 渲染思考内容中的公式
            window.renderMath(thinkingContainer);
        } else {
            // 更新现有思考内容
            const thinkingContent = thinkingContainer.querySelector('.thinking-content');
            if (thinkingContent) {
                thinkingContent.innerHTML = marked.parse(currentReasoning);

                // 重新渲染公式
                window.renderMath(thinkingContent);
            }
        }
    }

    // 更新最终内容
    if (content !== null && content !== '') {
        currentFinalContent += content;

        // 创建最终内容容器（如果不存在）
        let finalContent = contentDiv.querySelector('.final-content');
        if (!finalContent) {
            finalContent = document.createElement('div');
            finalContent.className = 'final-content';
            contentDiv.appendChild(finalContent);
        }

        // 更新最终内容
        finalContent.innerHTML = marked.parse(currentFinalContent);

        // 高亮代码块
        finalContent.querySelectorAll('pre code').forEach((block) => {
            hljs.highlightElement(block);
        });

        // 渲染公式
        window.renderMath(finalContent);
    }
}

// 构建消息链
function buildMessagesChain(currentMessage) {
    let systemPrompt = PROMPT_PRESETS.default.content;

    // 根据配置选择提示词
    if (userConfig.presetPrompt === 'custom' && userConfig.customPrompt) {
        systemPrompt = userConfig.customPrompt;
    } else if (PROMPT_PRESETS[userConfig.presetPrompt]) {
        systemPrompt = PROMPT_PRESETS[userConfig.presetPrompt].content;
    }

    const messagesChain = [
        {
            role: "system",
            content: systemPrompt
        }
    ];

    // 添加历史记录，确保格式正确
    let lastRole = "system";
    chatHistory.slice(-CONFIG.maxHistory * 2).forEach(record => {
        if (record.role && record.content) {
            // 如果连续两个 user，跳过后一个 user
            if (lastRole === "user" && record.role === "user") {
                return;
            }
            messagesChain.push({
                role: record.role,
                content: record.content.substring(0, CONFIG.maxLength)
            });
            lastRole = record.role;
        }
    });

    // 如果最后一条历史记录是 user，则不再添加新的 user 消消息，避免连续 user
    if (messagesChain.length === 0 || messagesChain[messagesChain.length - 1].role !== "user") {
        messagesChain.push({
            role: "user",
            content: currentMessage.substring(0, CONFIG.maxLength)
        });
    }

    return messagesChain;
}

// 调用流式API
async function callStreamingAPI(messages, onChunk) {
    const endpoint = `https://api.siliconflow.cn/v1/chat/completions`;
    const controller = new AbortController();
    const timeoutId = setTimeout(() => controller.abort(), CONFIG.timeout);

    try {
        const response = await fetch(endpoint, {
            method: 'POST',
            headers: {
                'Authorization': `Bearer ${userConfig.apiKey}`,
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({
                model: userConfig.model,
                messages: messages,
                temperature: CONFIG.temperature,
                max_tokens: CONFIG.maxTokens,
                stream: true
            }),
            signal: controller.signal
        });

        clearTimeout(timeoutId);

        if (!response.ok) {
            const errorText = await response.text();
            throw new Error(`API错误: ${errorText.slice(0, 100)}`);
        }

        // 处理流式响应
        const reader = response.body.getReader();
        const decoder = new TextDecoder();
        let buffer = '';

        while (true) {
            const { value, done } = await reader.read();
            if (done) break;

            buffer += decoder.decode(value, { stream: true });

            // 处理缓冲区中的每一行
            let boundary;
            while ((boundary = buffer.indexOf('\n')) >= 0) {
                const line = buffer.slice(0, boundary).trim();
                buffer = buffer.slice(boundary + 1);

                if (line.startsWith('data: ') && !line.includes('[DONE]')) {
                    try {
                        const json = line.replace('data: ', '');
                        const data = JSON.parse(json);

                        let reasoningChunk = null;
                        let contentChunk = null;

                        if (data.choices && data.choices[0].delta) {
                            const delta = data.choices[0].delta;

                            // 处理思考内容
                            if (delta.reasoning_content !== null && delta.reasoning_content !== undefined) {
                                reasoningChunk = delta.reasoning_content;
                            }

                            // 处理最终回答内容
                            if (delta.content !== null && delta.content !== undefined) {
                                contentChunk = delta.content;
                            }
                        }

                        // 调用回调更新内容
                        onChunk(reasoningChunk, contentChunk);

                    } catch (e) {
                        console.warn('解析JSON时出错:', e);
                    }
                }
            }
        }

        // 处理剩余数据
        if (buffer.trim()) {
            try {
                const data = JSON.parse(buffer.trim().replace('data: ', ''));
                let reasoningChunk = null;
                let contentChunk = null;

                if (data.choices && data.choices[0].delta) {
                    const delta = data.choices[0].delta;

                    if (delta.reasoning_content !== null && delta.reasoning_content !== undefined) {
                        reasoningChunk = delta.reasoning_content;
                    }

                    if (delta.content !== null && delta.content !== undefined) {
                        contentChunk = delta.content;
                    }
                }

                onChunk(reasoningChunk, contentChunk);

            } catch (e) {
                console.warn('解析剩余数据时出错:', e);
            }
        }

    } catch (error) {
        if (error.name === 'AbortError') {
            throw new Error('请求超时');
        }
        throw error;
    }
}
</script>
</body>
</html>