import { API_CONFIG, graphqlRequest } from '@/config/api'

// GraphQL请求函数 - 使用统一的graphqlRequest

// 获取所有地区
export const getRegions = async () => {
  const query = `
    query GetRegions {
      regions {
        id
        name
        description
        createTime
        updateTime
      }
    }
  `
  
  try {
    const data = await graphqlRequest(query)
    return data.regions || []
  } catch (error) {
    throw new Error(error.message || '获取地区列表失败')
  }
}

// 根据ID获取地区
export const getRegion = async (id) => {
  const query = `
    query GetRegion($id: ID!) {
      region(id: $id) {
        id
        name
        description
        createTime
        updateTime
      }
    }
  `
  
  try {
    const data = await graphqlRequest(query, { id })
    return data.region
  } catch (error) {
    throw new Error(error.message || '获取地区详情失败')
  }
}

// 保存地区（新增或更新）
export const saveRegion = async (regionData) => {
  const mutation = `
    mutation SaveRegion($input: RegionInput!) {
      saveRegion(input: $input) {
        id
        name
        description
        createTime
        updateTime
      }
    }
  `
  
  try {
    const data = await graphqlRequest(mutation, { input: regionData })
    return data.saveRegion
  } catch (error) {
    throw new Error(error.message || '保存地区失败')
  }
}

// 删除地区
export const deleteRegion = async (id) => {
  const mutation = `
    mutation DeleteRegion($id: ID!) {
      deleteRegion(id: $id)
    }
  `
  
  try {
    const data = await graphqlRequest(mutation, { id })
    return data.deleteRegion
  } catch (error) {
    throw new Error(error.message || '删除地区失败')
  }
}

// 获取所有省份
export const getProvinces = async () => {
  const query = `
    query GetProvinces {
      provinces {
        id
        name
        pid
        level
      }
    }
  `
  
  try {
    const data = await graphqlRequest(query)
    return data.provinces || []
  } catch (error) {
    throw new Error(error.message || '获取省份列表失败')
  }
}

// 根据省份ID获取城市
export const getCities = async (provinceId) => {
  const query = `
    query GetCities($provinceId: ID!) {
      cities(provinceId: $provinceId) {
        id
        name
        pid
        level
      }
    }
  `
  
  try {
    const data = await graphqlRequest(query, { provinceId })
    return data.cities || []
  } catch (error) {
    throw new Error(error.message || '获取城市列表失败')
  }
}

// 根据城市ID获取区县
export const getDistricts = async (cityId) => {
  const query = `
    query GetDistricts($cityId: ID!) {
      districts(cityId: $cityId) {
        id
        name
        pid
        level
      }
    }
  `
  
  try {
    const data = await graphqlRequest(query, { cityId })
    return data.districts || []
  } catch (error) {
    throw new Error(error.message || '获取区县列表失败')
  }
}

// RegionApi 对象，包含所有区域相关的API方法
export const RegionApi = {
  getRegions,
  getRegion,
  saveRegion,
  deleteRegion,
  getProvinces,
  getCities,
  getDistricts
}