import { pages, subPackages, tabBar } from '@/pages.json'
import { isMp } from './platform'
import dayjs from 'dayjs'

export 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 notNeedLogin, 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 = 'notNeedLogin') => {
  // 这里处理主包
  const mainPages = [
    ...pages
      .filter((page) => {
        if (!key) return false
        return page[key] === false
      })
      .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 getNotNeedLoginPages = (): string[] =>
  getAllPages('notNeedLogin').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 notNeedLoginPages: string[] = getAllPages('notNeedLogin').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 = () => {
  // 请求基准地址
  const baseUrl = import.meta.env.VITE_SERVER_BASEURL

  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
  if (JSON.parse(__VITE_APP_PROXY__)) {
    baseUploadUrl = `${import.meta.env.VITE_APP_PROXY_PREFIX}/${baseUploadUrl.split(import.meta.env.VITE_APP_PROXY_PREFIX + '/')[1]}`
  }

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

    switch (envVersion) {
      case 'develop':
        baseUploadUrl = 'https://ukw0y1.laf.run/upload'
        break
      case 'trial':
        baseUploadUrl = 'https://ukw0y1.laf.run/upload'
        break
      case 'release':
        baseUploadUrl = 'https://ukw0y1.laf.run/upload'
        break
    }
  }

  return baseUploadUrl
}

export function mergeStep(wrapped: (...rest: any[]) => Promise<any>) {
  let _mergeStepRequestInstance: any = null
  return async function (...args) {
    if (this?._mergeStepRequestInstance ?? _mergeStepRequestInstance)
      return this?._mergeStepRequestInstance ?? _mergeStepRequestInstance
    if (this) {
      this._mergeStepRequestInstance = wrapped.apply(this, args)
    } else {
      _mergeStepRequestInstance = wrapped(...args)
    }
    if (
      Object.prototype.toString.call(
        this?._mergeStepRequestInstance ?? _mergeStepRequestInstance,
      ) === '[object Promise]'
    ) {
      ;(this?._mergeStepRequestInstance ?? _mergeStepRequestInstance).finally(() => {
        if (this?._mergeStepRequestInstance) {
          this._mergeStepRequestInstance = null
        } else {
          _mergeStepRequestInstance = null
        }
      })
    }
    return _mergeStepRequestInstance
  }
}

// Promise 版modal
export const showModal = (
  content: string,
  { showCancel, title, ...options }: UniApp.ShowModalOptions = {},
) => {
  return new Promise((resolve, reject) =>
    uni.showModal({
      showCancel: showCancel === true,
      title: title || '提示',
      ...options,
      content,
      success(e) {
        if (e.confirm) {
          return resolve(e)
        }
        reject(e)
      },
      fail: reject,
    }),
  )
}

/** 格式化时间 */
export const formatTime = (time: string | number) => {
  return dayjs(time).format('YYYY-MM-DD HH:mm:ss')
}