415 lines
14 KiB
JavaScript
415 lines
14 KiB
JavaScript
const ChatManager = {
|
||
isStreaming: false,
|
||
messages: [],
|
||
|
||
init() {
|
||
const input = document.getElementById('messageInput');
|
||
if (input) {
|
||
input.addEventListener('keydown', (e) => {
|
||
if (e.key === 'Enter' && e.ctrlKey) {
|
||
e.preventDefault();
|
||
this.sendMessage();
|
||
}
|
||
});
|
||
// 自适应高度
|
||
input.addEventListener('input', () => {
|
||
input.style.height = 'auto';
|
||
input.style.height = Math.min(input.scrollHeight, 120) + 'px';
|
||
});
|
||
}
|
||
|
||
const sendBtn = document.getElementById('sendBtn');
|
||
if (sendBtn) {
|
||
sendBtn.addEventListener('click', () => this.sendMessage());
|
||
}
|
||
|
||
UploadManager.init();
|
||
},
|
||
|
||
async loadMessages(sessionId) {
|
||
try {
|
||
const res = await api.get('/sessions/' + sessionId + '/messages');
|
||
this.messages = res.data || [];
|
||
this.renderMessages();
|
||
Storage.setCachedMessages(sessionId, this.messages);
|
||
} catch (err) {
|
||
// 尝试从缓存加载
|
||
const cached = Storage.getCachedMessages(sessionId);
|
||
if (cached) {
|
||
this.messages = cached;
|
||
this.renderMessages();
|
||
}
|
||
}
|
||
},
|
||
|
||
renderMessages() {
|
||
const container = document.getElementById('messagesContainer');
|
||
if (!container) return;
|
||
|
||
if (this.messages.length === 0) {
|
||
container.innerHTML = '<div class="empty-state"><h3>开始新的对话</h3><p>输入消息开始聊天</p></div>';
|
||
return;
|
||
}
|
||
|
||
container.innerHTML = this.messages.map(msg => {
|
||
if (msg.role === 'user') {
|
||
return `<div class="message user">${this.escapeHtml(msg.content)}</div>`;
|
||
} else {
|
||
let html = `<div class="message assistant">`;
|
||
if (msg.thinking_content) {
|
||
html += `<div class="thinking-toggle" onclick="this.nextElementSibling.classList.toggle('expanded')">思考过程 ▾</div>`;
|
||
html += `<div class="thinking-content">${MarkdownRenderer.render(msg.thinking_content)}</div>`;
|
||
}
|
||
html += `<div class="markdown-body">${MarkdownRenderer.render(msg.content)}</div>`;
|
||
html += `</div>`;
|
||
return html;
|
||
}
|
||
}).join('');
|
||
|
||
container.scrollTop = container.scrollHeight;
|
||
},
|
||
|
||
async sendMessage() {
|
||
if (this.isStreaming) return;
|
||
|
||
const input = document.getElementById('messageInput');
|
||
const content = input.value.trim();
|
||
if (!content) return;
|
||
|
||
if (!SessionManager.currentSessionId) {
|
||
await SessionManager.createSession();
|
||
}
|
||
|
||
// 清空输入
|
||
input.value = '';
|
||
input.style.height = 'auto';
|
||
|
||
// 构建消息
|
||
const userMessage = { role: 'user', content };
|
||
if (UploadManager.getFiles().length > 0) {
|
||
userMessage.file_info = UploadManager.getFiles();
|
||
}
|
||
this.messages.push(userMessage);
|
||
this.renderMessages();
|
||
|
||
// 保存用户消息到数据库
|
||
api.post('/sessions/' + SessionManager.currentSessionId + '/messages', userMessage).catch(console.error);
|
||
|
||
// 清除文件
|
||
UploadManager.clearFiles();
|
||
|
||
// 获取当前配置
|
||
const provider = document.getElementById('providerSelect')?.value || 'newapi';
|
||
const model = document.getElementById('modelSelect')?.value || 'gpt-3.5-turbo';
|
||
const thinkingMode = document.getElementById('thinkingMode')?.checked || false;
|
||
|
||
// SSE 流式请求
|
||
this.isStreaming = true;
|
||
this.updateSendButton();
|
||
|
||
try {
|
||
await this.streamChat(provider, model, thinkingMode);
|
||
} catch (err) {
|
||
this.addErrorMessage(err.message);
|
||
} finally {
|
||
this.isStreaming = false;
|
||
this.updateSendButton();
|
||
}
|
||
},
|
||
|
||
async streamChat(provider, model, thinkingMode) {
|
||
const token = Storage.getToken();
|
||
|
||
// 构建消息历史（只取 role 和 content）
|
||
const messages = this.messages.map(m => ({
|
||
role: m.role,
|
||
content: m.content
|
||
}));
|
||
|
||
// 添加 AI 消息占位
|
||
const assistantEl = this.addAssistantPlaceholder();
|
||
let fullContent = '';
|
||
let thinkingContent = '';
|
||
|
||
const response = await fetch('/api/chat/completions', {
|
||
method: 'POST',
|
||
headers: {
|
||
'Content-Type': 'application/json',
|
||
'Authorization': 'Bearer ' + token
|
||
},
|
||
body: JSON.stringify({
|
||
provider, model, messages, stream: true, thinkingMode
|
||
})
|
||
});
|
||
|
||
if (!response.ok) {
|
||
const err = await response.json();
|
||
throw new Error(err.message || 'AI 请求失败');
|
||
}
|
||
|
||
const reader = response.body.getReader();
|
||
const decoder = new TextDecoder();
|
||
let buffer = '';
|
||
|
||
while (true) {
|
||
const { done, value } = await reader.read();
|
||
if (done) break;
|
||
|
||
buffer += decoder.decode(value, { stream: true });
|
||
const lines = buffer.split('\n');
|
||
buffer = lines.pop() || '';
|
||
|
||
for (const line of lines) {
|
||
if (!line.startsWith('data: ')) continue;
|
||
const data = line.slice(6).trim();
|
||
|
||
if (data === '[DONE]') {
|
||
continue;
|
||
}
|
||
|
||
try {
|
||
const parsed = JSON.parse(data);
|
||
|
||
if (parsed.type === 'error') {
|
||
throw new Error(parsed.message);
|
||
}
|
||
|
||
if (parsed.thinking) {
|
||
thinkingContent += parsed.thinking;
|
||
this.updateThinkingContent(assistantEl, thinkingContent);
|
||
}
|
||
|
||
if (parsed.content) {
|
||
fullContent += parsed.content;
|
||
this.updateAssistantContent(assistantEl, fullContent);
|
||
}
|
||
} catch (e) {
|
||
if (e.message && !e.message.includes('JSON')) throw e;
|
||
}
|
||
}
|
||
}
|
||
|
||
// 流结束，保存 AI 消息
|
||
const assistantMessage = {
|
||
role: 'assistant',
|
||
content: fullContent,
|
||
thinking_content: thinkingContent || null
|
||
};
|
||
this.messages.push(assistantMessage);
|
||
|
||
// 保存到数据库
|
||
api.post('/sessions/' + SessionManager.currentSessionId + '/messages', assistantMessage).catch(console.error);
|
||
|
||
// 缓存到 localStorage
|
||
Storage.setCachedMessages(SessionManager.currentSessionId, this.messages);
|
||
|
||
// 移除打字机光标
|
||
this.removeTypingCursor(assistantEl);
|
||
},
|
||
|
||
addAssistantPlaceholder() {
|
||
const container = document.getElementById('messagesContainer');
|
||
const empty = container.querySelector('.empty-state');
|
||
if (empty) empty.remove();
|
||
|
||
const el = document.createElement('div');
|
||
el.className = 'message assistant';
|
||
el.innerHTML = '<span class="typing-cursor"></span>';
|
||
container.appendChild(el);
|
||
container.scrollTop = container.scrollHeight;
|
||
return el;
|
||
},
|
||
|
||
updateAssistantContent(el, content) {
|
||
const cursor = el.querySelector('.typing-cursor');
|
||
const body = el.querySelector('.markdown-body');
|
||
|
||
if (body) {
|
||
body.innerHTML = MarkdownRenderer.render(content);
|
||
if (cursor) body.appendChild(cursor);
|
||
} else {
|
||
const thinking = el.querySelector('.thinking-content, .thinking-toggle');
|
||
const md = document.createElement('div');
|
||
md.className = 'markdown-body';
|
||
md.innerHTML = MarkdownRenderer.render(content);
|
||
if (cursor) md.appendChild(cursor);
|
||
|
||
if (thinking) {
|
||
el.appendChild(md);
|
||
} else {
|
||
el.innerHTML = '';
|
||
el.appendChild(md);
|
||
}
|
||
}
|
||
|
||
el.parentElement.scrollTop = el.parentElement.scrollHeight;
|
||
},
|
||
|
||
updateThinkingContent(el, content) {
|
||
let toggle = el.querySelector('.thinking-toggle');
|
||
let container = el.querySelector('.thinking-content');
|
||
|
||
if (!toggle) {
|
||
toggle = document.createElement('div');
|
||
toggle.className = 'thinking-toggle expanded';
|
||
toggle.textContent = '思考过程 ▾';
|
||
toggle.onclick = function() {
|
||
container.classList.toggle('expanded');
|
||
this.textContent = container.classList.contains('expanded') ? '思考过程 ▴' : '思考过程 ▾';
|
||
};
|
||
el.insertBefore(toggle, el.firstChild);
|
||
}
|
||
|
||
if (!container) {
|
||
container = document.createElement('div');
|
||
container.className = 'thinking-content expanded';
|
||
el.insertBefore(container, toggle.nextSibling);
|
||
}
|
||
|
||
container.innerHTML = MarkdownRenderer.render(content);
|
||
el.parentElement.scrollTop = el.parentElement.scrollHeight;
|
||
},
|
||
|
||
removeTypingCursor(el) {
|
||
const cursor = el.querySelector('.typing-cursor');
|
||
if (cursor) cursor.remove();
|
||
},
|
||
|
||
addErrorMessage(message) {
|
||
const container = document.getElementById('messagesContainer');
|
||
const el = document.createElement('div');
|
||
el.className = 'message assistant';
|
||
el.innerHTML = `<div class="alert alert-error">错误: ${this.escapeHtml(message)} <button class="btn btn-sm btn-secondary" onclick="ChatManager.retryLast()">重试</button></div>`;
|
||
container.appendChild(el);
|
||
container.scrollTop = container.scrollHeight;
|
||
},
|
||
|
||
clearMessages() {
|
||
const container = document.getElementById('messagesContainer');
|
||
if (container) {
|
||
container.innerHTML = '<div class="empty-state"><h3>开始新的对话</h3><p>输入消息开始聊天</p></div>';
|
||
}
|
||
this.messages = [];
|
||
},
|
||
|
||
updateSendButton() {
|
||
const btn = document.getElementById('sendBtn');
|
||
if (btn) {
|
||
btn.disabled = this.isStreaming;
|
||
btn.textContent = this.isStreaming ? '回复中...' : '发送';
|
||
}
|
||
},
|
||
|
||
escapeHtml(text) {
|
||
const div = document.createElement('div');
|
||
div.textContent = text;
|
||
return div.innerHTML;
|
||
}
|
||
};
|
||
|
||
// ========================================
|
||
// 聊天页面初始化
|
||
// ========================================
|
||
|
||
// 切换侧边栏
|
||
function toggleSidebar() {
|
||
document.getElementById('sidebar').classList.toggle('collapsed');
|
||
}
|
||
|
||
// 供应商/模型数据缓存
|
||
let providersData = [];
|
||
let personalitiesData = [];
|
||
|
||
// 加载供应商配置
|
||
async function loadProviders() {
|
||
try {
|
||
const res = await api.get('/config');
|
||
providersData = res.data.providers || [];
|
||
const select = document.getElementById('providerSelect');
|
||
select.innerHTML = '<option value="">选择供应商</option>';
|
||
providersData.forEach((p, i) => {
|
||
if (p.enabled) {
|
||
const option = document.createElement('option');
|
||
option.value = i;
|
||
option.textContent = p.name;
|
||
select.appendChild(option);
|
||
}
|
||
});
|
||
// 如果只有一个供应商，自动选择
|
||
if (providersData.filter(p => p.enabled).length === 1) {
|
||
select.value = providersData.findIndex(p => p.enabled);
|
||
onProviderChange();
|
||
}
|
||
} catch (err) {
|
||
console.error('加载供应商配置失败:', err);
|
||
}
|
||
}
|
||
|
||
// 供应商切换时更新模型列表
|
||
function onProviderChange() {
|
||
const index = document.getElementById('providerSelect').value;
|
||
const modelSelect = document.getElementById('modelSelect');
|
||
modelSelect.innerHTML = '<option value="">选择模型</option>';
|
||
|
||
if (index !== '' && providersData[index]) {
|
||
const provider = providersData[index];
|
||
(provider.models || []).forEach(m => {
|
||
const option = document.createElement('option');
|
||
option.value = m;
|
||
option.textContent = m;
|
||
modelSelect.appendChild(option);
|
||
});
|
||
// 如果只有一个模型，自动选择
|
||
if (provider.models && provider.models.length === 1) {
|
||
modelSelect.value = provider.models[0];
|
||
}
|
||
// 如果有默认模型，自动选择
|
||
if (provider.defaultModel) {
|
||
modelSelect.value = provider.defaultModel;
|
||
}
|
||
}
|
||
}
|
||
|
||
// 加载人格列表
|
||
async function loadPersonalities() {
|
||
try {
|
||
const res = await api.get('/personalities');
|
||
personalitiesData = res.data || [];
|
||
const select = document.getElementById('personalitySelect');
|
||
select.innerHTML = '<option value="">默认人格</option>';
|
||
personalitiesData.forEach(p => {
|
||
const option = document.createElement('option');
|
||
option.value = p.id;
|
||
option.textContent = (p.icon ? p.icon + ' ' : '') + p.name;
|
||
select.appendChild(option);
|
||
});
|
||
} catch (err) {
|
||
console.error('加载人格列表失败:', err);
|
||
}
|
||
}
|
||
|
||
// 页面初始化
|
||
(async function() {
|
||
// 检查认证
|
||
const token = Storage.getToken();
|
||
if (!token) {
|
||
window.location.href = '/login.php';
|
||
return;
|
||
}
|
||
|
||
// 初始化聊天管理器
|
||
ChatManager.init();
|
||
|
||
// 加载数据
|
||
await Promise.all([
|
||
loadProviders(),
|
||
loadPersonalities(),
|
||
SessionManager.loadSessions()
|
||
]);
|
||
|
||
// 如果有会话，自动选择第一个
|
||
if (SessionManager.sessions.length > 0) {
|
||
await SessionManager.switchSession(SessionManager.sessions[0].id);
|
||
}
|
||
})();
|