import axios from 'axios'

// 创建 axios 实例
const api = axios.create({
  baseURL: '/api',
  timeout: 30000,
  headers: {
    'Content-Type': 'application/json'
  }
})

// 请求拦截器：添加认证 token
api.interceptors.request.use(
  (config) => {
    const token = localStorage.getItem('access_token')
    if (token) {
      config.headers.Authorization = `Bearer ${token}`
    }
    return config
  },
  (error) => {
    return Promise.reject(error)
  }
)

// 响应拦截器：处理通用错误
api.interceptors.response.use(
  (response) => response.data,
  (error) => {
    if (error.response?.status === 401) {
      localStorage.removeItem('access_token')
      localStorage.removeItem('user')
      // 使用 Vue Router 跳转，避免 SPA 路由丢失
      if (window.__VUE_ROUTER__) {
        window.__VUE_ROUTER__.push('/auth')
      } else {
        window.location.href = '/auth'
      }
    }
    return Promise.reject(error.response?.data || error.message)
  }
)

// ============ 认证接口 ============

export const authAPI = {
  login: (data) => api.post('/auth/login', data),
  register: (data) => api.post('/auth/register', data),
  logout: () => api.post('/auth/logout'),
  getMe: () => api.get('/auth/me'),
  listUsers: () => api.get('/auth/users'),
  updateUserPermission: (userId, data) => api.put(`/auth/users/${userId}`, data),
  getSettings: () => api.get('/auth/settings'),
  updateSettings: (data) => api.put('/auth/settings', data)
}

// ============ 会话接口 ============

export const conversationsAPI = {
  list: (params) => api.get('/conversations/', { params }),
  create: (data) => api.post('/conversations/', data),
  get: (id) => api.get(`/conversations/${id}`),
  update: (id, data) => api.put(`/conversations/${id}`, data),
  delete: (id) => api.delete(`/conversations/${id}`)
}

// ============ 消息接口 ============

export const messagesAPI = {
  list: (conversationId, params) => api.get('/messages/', { params: { conversation_id: conversationId, ...params } }),
  send: (data) => api.post('/messages/', data),
  delete: (id) => api.delete(`/messages/${id}`)
}

// ============ 工具接口 ============

export const toolsAPI = {
  list: (params) => api.get('/tools/', { params }),
  get: (name) => api.get(`/tools/${name}`),
  execute: (name, data) => api.post(`/tools/${name}/execute`, data)
}

// ============ LLM Provider 接口 ============

export const providersAPI = {
  list: () => api.get('/providers/'),
  create: (data) => api.post('/providers/', data),
  get: (id) => api.get(`/providers/${id}`),
  update: (id, data) => api.put(`/providers/${id}`, data),
  delete: (id) => api.delete(`/providers/${id}`),
  test: (id) => api.post(`/providers/${id}/test`)
}

// ============ Agent 接口 ============

export const agentsAPI = {
  list: () => api.get('/agents/'),
  create: (data) => api.post('/agents/', data),
  get: (id) => api.get(`/agents/${id}`),
  update: (id, data) => api.put(`/agents/${id}`, data),
  delete: (id) => api.delete(`/agents/${id}`)
}

// ============ 聊天室接口 ============

export const chatRoomsAPI = {
  list: (params) => api.get('/chat-rooms/', { params }),
  create: (data) => api.post('/chat-rooms/', data),
  get: (id) => api.get(`/chat-rooms/${id}`),
  update: (id, data) => api.put(`/chat-rooms/${id}`, data),
  delete: (id) => api.delete(`/chat-rooms/${id}`),
  getMessages: (id) => api.get(`/chat-rooms/${id}/messages`),
  start: (id) => `/api/chat-rooms/${id}/start`,
  // 注意: start 返回路径字符串，由调用方使用 fetch 处理 SSE 流
  stop: (id) => api.post(`/chat-rooms/${id}/stop`),
  reset: (id) => api.post(`/chat-rooms/${id}/reset`),
  addAgent: (roomId, data) => api.post(`/chat-rooms/${roomId}/agents`, data),
  updateAgent: (roomId, agentId, data) => api.put(`/chat-rooms/${roomId}/agents/${agentId}`, data),
  deleteAgent: (roomId, agentId) => api.delete(`/chat-rooms/${roomId}/agents/${agentId}`)
}

export default api