// 新闻管理 API

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

// GraphQL 查询语句
const GET_NEWS_LIST_QUERY = `
  query GetNewsList($page: Int!, $size: Int!, $title: String, $state: Int) {
    newsList(page: $page, size: $size, title: $title, state: $state) {
      content {
        id
        title
        summary
        coverImage
        author
        viewCount
        state
        stateName
        createTime
        updateTime
      }
      totalElements
      page
      size
    }
  }
`

const GET_NEWS_QUERY = `
  query GetNews($id: ID!) {
    news(id: $id) {
      id
      title
      content
      summary
      coverImage
      author
      viewCount
      state
      stateName
      createTime
      updateTime
    }
  }
`

const GET_PUBLISHED_NEWS_QUERY = `
  query GetPublishedNews($id: ID!) {
    publishedNews(id: $id) {
      id
      title
      content
      summary
      coverImage
      author
      viewCount
      state
      stateName
      createTime
      updateTime
    }
  }
`

const GET_PUBLISHED_NEWS_LIST_QUERY = `
  query GetPublishedNewsList($page: Int!, $size: Int!) {
    publishedNewsList(page: $page, size: $size) {
      content {
        id
        title
        summary
        coverImage
        author
        viewCount
        state
        stateName
        createTime
        updateTime
      }
      totalElements
      page
      size
    }
  }
`

const SAVE_NEWS_MUTATION = `
  mutation SaveNews($input: NewsInput!) {
    saveNews(input: $input) {
      id
      title
      content
      summary
      coverImage
      author
      viewCount
      state
      stateName
      createTime
      updateTime
    }
  }
`

const DELETE_NEWS_MUTATION = `
  mutation DeleteNews($id: ID!) {
    deleteNews(id: $id)
  }
`

const UPDATE_NEWS_STATE_MUTATION = `
  mutation UpdateNewsState($id: ID!, $state: Int!) {
    updateNewsState(id: $id, state: $state)
  }
`

// API 函数
export const getNewsList = async (page = 0, size = 10, title = '', state) => {
  try {
    const variables = {
      page,
      size,
      title
    }

    if (state !== undefined && state !== null && state !== '') {
      variables.state = Number(state)
    }

    const result = await graphqlRequest(GET_NEWS_LIST_QUERY, variables)
    return result.data.newsList
  } catch (error) {
    console.error('获取新闻列表失败:', error)
    throw new Error(error && error.message ? error.message : '获取新闻列表失败')
  }
}

export const getNews = async (id) => {
  try {
    const result = await graphqlRequest(GET_NEWS_QUERY, { id })
    return result.data.news
  } catch (error) {
    throw new Error(error && error.message ? error.message : '获取新闻详情失败')
  }
}

export const getPublishedNews = async (id) => {
  try {
    const result = await graphqlRequest(GET_PUBLISHED_NEWS_QUERY, { id })
    return result.data.publishedNews
  } catch (error) {
    throw new Error(error && error.message ? error.message : '获取新闻详情失败')
  }
}

export const getPublishedNewsList = async (page = 0, size = 10) => {
  try {
    const variables = {
      page,
      size
    }

    const result = await graphqlRequest(GET_PUBLISHED_NEWS_LIST_QUERY, variables)
    return result.data.publishedNewsList
  } catch (error) {
    console.error('获取新闻列表失败:', error)
    throw new Error(error && error.message ? error.message : '获取新闻列表失败')
  }
}

export const saveNews = async (newsData) => {
  try {
    const data = await graphqlRequest(SAVE_NEWS_MUTATION, { input: newsData })
    return data.data.saveNews
  } catch (error) {
    console.error('保存新闻失败:', error)
    throw new Error(error && error.message ? error.message : '保存新闻失败')
  }
}

export const deleteNews = async (id) => {
  try {
    const data = await graphqlRequest(DELETE_NEWS_MUTATION, { id })
    return data.data.deleteNews
  } catch (error) {
    throw new Error(error && error.message ? error.message : '删除新闻失败')
  }
}

export const updateNewsState = async (id, state) => {
  try {
    const data = await graphqlRequest(UPDATE_NEWS_STATE_MUTATION, { id, state })
    return data.data.updateNewsState
  } catch (error) {
    throw new Error(error && error.message ? error.message : '更新新闻状态失败')
  }
}