import pagesJson, { pages, subPackages } from '@/pages.json'
import { isMpWeixin } from './platform'

const getLastPage = () => {
  // getCurrentPages() 至少有1个元素，所以不再额外判断
  // const lastPage = getCurrentPages().at(-1)
  // 上面那个在低版本安卓中打包回报错，所以改用下面这个【虽然我加了src/interceptions/prototype.ts，但依然报错】
  const pages = getCurrentPages()
  return pages[pages.length - 1]
}

// /** 判断当前页面是否是tabbar页  */
// export const getIsTabbar = () => {
//   if (!tabBar) {
//     return false
//   }
//   if (!tabBar.list.length) {
//     // 通常有tabBar的话，list不能有空，且至少有2个元素，这里其实不用处理
//     return false
//   }
//   const lastPage = getLastPage()
//   const currPath = lastPage.route
//   return !!tabBar.list.find((e) => e.pagePath === currPath)
// }

/**
 * 获取当前页面路由的 path 路径和 redirectPath 路径
 * path 如 ‘/pages/login/index’
 * redirectPath 如 ‘/pages/demo/base/route-interceptor’
 */
export const currRoute = () => {
  const lastPage = getLastPage()
  const currRoute = (lastPage as any).$page
  // console.log('lastPage.$page:', currRoute)
  // console.log('lastPage.$page.fullpath:', currRoute.fullPath)
  // console.log('lastPage.$page.options:', currRoute.options)
  // console.log('lastPage.options:', (lastPage as any).options)
  // 经过多端测试，只有 fullPath 靠谱，其他都不靠谱
  const { fullPath } = currRoute as { fullPath: string }
  // console.log(fullPath)
  // eg: /pages/login/index?redirect=%2Fpages%2Fdemo%2Fbase%2Froute-interceptor (小程序)
  // eg: /pages/login/index?redirect=%2Fpages%2Froute-interceptor%2Findex%3Fname%3Dfeige%26age%3D30(h5)
  return getUrlObj(fullPath)
}

const ensureDecodeURIComponent = (url: string) => {
  if (url.startsWith('%')) {
    return ensureDecodeURIComponent(decodeURIComponent(url))
  }
  return url
}
/**
 * 解析 url 得到 path 和 query
 * 比如输入url: /pages/login/index?redirect=%2Fpages%2Fdemo%2Fbase%2Froute-interceptor
 * 输出: {path: /pages/login/index, query: {redirect: /pages/demo/base/route-interceptor}}
 */
export const getUrlObj = (url: string) => {
  const [path, queryStr] = url.split('?')
  // console.log(path, queryStr)

  if (!queryStr) {
    return {
      path,
      query: {},
    }
  }
  const query: Record<string, string> = {}
  queryStr.split('&').forEach((item) => {
    const [key, value] = item.split('=')
    // console.log(key, value)
    query[key] = ensureDecodeURIComponent(value) // 这里需要统一 decodeURIComponent 一下，可以兼容h5和微信y
  })
  return { path, query }
}
/**
 * 得到所有的需要登录的pages，包括主包和分包的
 * 这里设计得通用一点，可以传递key作为判断依据，默认是 needLogin, 与 route-block 配对使用
 * 如果没有传 key，则表示所有的pages，如果传递了 key, 则表示通过 key 过滤
 */
export const getAllPages = (key = 'needLogin') => {
  // 这里处理主包
  const mainPages = [
    ...pages
      .filter((page) => !key || page[key])
      .map((page) => ({
        ...page,
        path: `/${page.path}`,
      })),
  ]
  // 这里处理分包
  const subPages: any[] = []
  subPackages.forEach((subPageObj) => {
    // console.log(subPageObj)
    const { root } = subPageObj

    subPageObj.pages
      .filter((page) => !key || page[key])
      .forEach((page: { path: string } & Record<string, any>) => {
        subPages.push({
          ...page,
          path: `/${root}/${page.path}`,
        })
      })
  })
  const result = [...mainPages, ...subPages]
  // console.log(`getAllPages by ${key} result: `, result)
  return result
}

/**
 * 得到所有的需要登录的pages，包括主包和分包的
 * 只得到 path 数组
 */
export const getNeedLoginPages = (): string[] => getAllPages('needLogin').map((page) => page.path)

/**
 * 得到所有的需要登录的pages，包括主包和分包的
 * 只得到 path 数组
 */
export const needLoginPages: string[] = getAllPages('needLogin').map((page) => page.path)

/**
 * 根据微信小程序当前环境，判断应该获取的BaseUrl
 */
export const getEnvBaseUrl = (staticType: string) => {
  // 请求基准地址
  let baseUrl =
    staticType === 'static'
      ? import.meta.env.VITE_STATIC_SERVER_BASEURL
      : import.meta.env.VITE_SERVER_BASEURL

  // 微信小程序端环境区分
  if (isMpWeixin) {
    const {
      miniProgram: { envVersion },
    } = uni.getAccountInfoSync()

    switch (envVersion) {
      case 'develop':
        baseUrl = import.meta.env.VITE_SERVER_BASEURL__WEIXIN_DEVELOP || baseUrl
        break
      case 'trial':
        baseUrl = import.meta.env.VITE_SERVER_BASEURL__WEIXIN_TRIAL || baseUrl
        break
      case 'release':
        baseUrl = import.meta.env.VITE_SERVER_BASEURL__WEIXIN_RELEASE || baseUrl
        break
    }
  }

  return baseUrl
}

/**
 * 根据微信小程序当前环境，判断应该获取的UPLOAD_BASEURL
 */
export const getEnvBaseUploadUrl = () => {
  // 请求基准地址
  let baseUploadUrl = import.meta.env.VITE_UPLOAD_BASEURL

  // 微信小程序端环境区分
  if (isMpWeixin) {
    const {
      miniProgram: { envVersion },
    } = uni.getAccountInfoSync()

    switch (envVersion) {
      case 'develop':
        baseUploadUrl = import.meta.env.VITE_UPLOAD_BASEURL__WEIXIN_DEVELOP || baseUploadUrl
        break
      case 'trial':
        baseUploadUrl = import.meta.env.VITE_UPLOAD_BASEURL__WEIXIN_TRIAL || baseUploadUrl
        break
      case 'release':
        baseUploadUrl = import.meta.env.VITE_UPLOAD_BASEURL__WEIXIN_RELEASE || baseUploadUrl
        break
    }
  }

  return baseUploadUrl
}
/** 主要是处理 arr.at(-1) 在安卓机上运行报错的 兼容性问题 */
export const getArrElementByIdx = (arr: any[], index: number) => {
  if (index < 0) return arr[arr.length + index]
  if (index >= arr.length) return undefined
  return arr[index]
}

export const getLastItem = (arr: any[]) => getArrElementByIdx(arr, -1)

export const getIsTabbar = () => {
  if (!Object.keys(pagesJson).includes('tabBar')) {
    return false
  }
  const pages = getCurrentPages()
  const lastPage = getLastItem(pages)
  const currPath = lastPage.route
  return !!pagesJson.tabBar.list.find((e) => e.pagePath === currPath)
}

export const baseUrl = 'https://api.v3.ycymedu.com'
export const staticBaseUrl = 'https://api.static.ycymedu.com'

export const httpuls = 'https://lwpostgradute.oss-cn-hangzhou.aliyuncs.com/'
