import Taro from '@tarojs/taro'
import { hc } from 'hono/client'
import type { AuthRoutes, UserRoutes, RoleRoutes, FileRoutes } from '@/server/api'

// API配置
const API_BASE_URL = process.env.TARO_APP_API_BASE_URL || 'http://localhost:3000'

// 完整的API地址
// const BASE_URL = `${API_BASE_URL}/api/${API_VERSION}`

// 创建自定义fetch函数，适配Taro.request
const taroFetch: typeof fetch = async (input, init) => {
  const url = typeof input === 'string' ? input : input.url
  const method = init?.method || 'GET'
  
  // 构建Taro请求选项
  const options: Taro.request.Option = {
    url,
    method: method as any,
    data: init?.body,
    header: {
      'Content-Type': 'application/json',
      ...Object.fromEntries(new Headers(init?.headers || {}))
    }
  }

  // 添加token
  const token = Taro.getStorageSync('token')
  if (token) {
    options.header = {
      ...options.header,
      'Authorization': `Bearer ${token}`
    }
  }

  try {
    const response = await Taro.request(options)

    const responseHeaders = new Headers();
    if (response.header) {
      for (const [key, value] of Object.entries(response.header)) {
        responseHeaders.set(key, value);
      }
    }

      // 处理204 No Content响应，不设置body
    const body = response.statusCode === 204
    ? null
    : responseHeaders.get('content-type')?.includes('application/json')
      ? JSON.stringify(response.data)
      : response.data;

    return new Response(
      body,
      {
        status: response.statusCode,
        statusText: response.errMsg || 'OK',
        headers: responseHeaders
      }
    )
  } catch (error) {
    console.error('API Error:', error)
    Taro.showToast({
      title: error.message || '网络错误',
      icon: 'none'
    })
    throw error
  }
}

// 创建Hono RPC客户端
const createRpcClient = <T>(basePath: string) => {
  return hc<T>(`${API_BASE_URL}`, {
    fetch: taroFetch
  })
}

// 创建各个模块的RPC客户端
export const authClient = createRpcClient<AuthRoutes>('/').api.v1.auth
export const userClient = createRpcClient<UserRoutes>('/').api.v1.users
export const roleClient = createRpcClient<RoleRoutes>('/').api.v1.roles
export const fileClient = createRpcClient<FileRoutes>('/').api.v1.files