# All files utils.ts

81.9% Statements 86/105
60% Branches 60/100
100% Functions 9/9
81.9% Lines 86/105

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     export const genResponseByType = (
      responseType: XMLHttpRequest['responseType'],
      response: any,
    ): string | Record<string, any> => {
      let result = ''
      switch (responseType) {
        case '':
        case 'text':
        case 'json':
          if (typeof response == 'string') {
            try {
              result = JSON.parse(response)
            } catch (e) {
              // not a JSON string
              result = response.slice(0, 10000)
            }
          E} else if (isPureObject(response) || Array.isArray(response)) {
            result = JSON.stringify(response)
          } else if (typeof response !== 'undefined') {
            result = Object.prototype.toString.call(response)
          }
          break

        case 'blob':
        case 'document':
        case 'arraybuffer':
        default:
          Eif (typeof response !== 'undefined') {
            result = Object.prototype.toString.call(response)
          }
          break
      }
      return result
    }

    export const getStringResponseByType = (
      responseType: XMLHttpRequest['responseType'],
      response: any,
    ) => {
      let result = ''
      switch (responseType) {
        case '':
        case 'text':
        case 'json':
          if (typeof response == 'string') {
            result = response
          } else if (isPureObject(response) || Array.isArray(response)) {
            result = JSON.stringify(response)
          E} else if (typeof response !== 'undefined') {
            result = Object.prototype.toString.call(response)
          }
          break
        case 'blob':
        case 'document':
        case 'arraybuffer':
        default:
          Eif (typeof response !== 'undefined') {
            result = Object.prototype.toString.call(response)
          }
          break
      }
      return result
    }

    export const genStringBody = (body?: BodyInit) => {
      Iif (!body) {
        return null
      }
      let result: string

      if (typeof body === 'string') {
        Eif (body[0] === '{' || body[0] === '[') {
          result = body
        }
        // 'a=1&b=2' => try to parse as query
        const arr = body.split('&')
        if (arr.length === 1) {
          // not a query, parse as original string
          result = body
        } else E{
          // 'a=1&b=2&c' => parse as query
          result = arr.join(',')
        }
      } else if (isIterable(body)) {
        // FormData or URLSearchParams or Array
        const arr = []
        for (const [key, value] of <FormData | URLSearchParams>body) {
          arr.push(`${key}=${typeof value === 'string' ? value : '[object Object]'}`)
        }
        result = arr.join(',')
      E} else if (
        body instanceof Blob ||
        body instanceof ReadableStream ||
        body instanceof ArrayBuffer
      ) {
        result = 'byte data'
      } else if (isPureObject(body)) {
        // overriding ArrayBufferView which is not convertable to string
        result = <any>body
      } else {
        result = `can't parse body ${typeof body}`
      }
      return result
    }

    export const genGetDataByUrl = (url: string, getData: Record<string, any> = {}) => {
      if (!isPureObject(getData)) {
        getData = {}
      }
      let query: string[] = url ? url.split('?') : [] // a.php?b=c&d=?e => ['a.php', 'b=c&d=', 'e']
      query.shift() // => ['b=c&d=', 'e']
      Eif (query.length > 0) {
        query = query.join('?').split('&') // => 'b=c&d=?e' => ['b=c', 'd=?e']
        for (const q of query) {
          const kv = q.split('=')
          try {
            getData[kv[0]] = decodeURIComponent(kv[1])
          } catch (e) {
            // "URIError: URI malformed" will be thrown when `kv[1]` contains "%", so just use raw data
            // @issue #470
            // @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Malformed_URI
            getData[kv[0]] = kv[1]
          }
        }
      }
      return getData
    }

    export const genFormattedBody = (body?: BodyInit) => {
      Iif (!body) {
        return null
      }
      let result: string | { [key: string]: string }

      if (typeof body === 'string') {
        try {
          // '{a:1}' =>
          result = JSON.parse(body)
        } catch (e) {
          // 'a=1&b=2' => try to parse as query
          const arr = body.split('&')
          result = {}
          // eslint-disable-next-line
          for (let q of arr) {
            const kv = q.split('=')
            result[kv[0]] = kv[1] === undefined ? 'undefined' : kv[1]
          }
        }
      } else if (isIterable(body)) {
        // FormData or URLSearchParams or Array
        result = {}
        for (const [key, value] of <FormData | URLSearchParams>body) {
          result[key] = typeof value === 'string' ? value : '[object Object]'
        }
      } else if (
        ArrayBuffer.isView(body) ||
        body instanceof Blob ||
        body instanceof ReadableStream ||
        body instanceof ArrayBuffer
      ) {
        result = '[byte data]'
      E} else if (isPureObject(body)) {
        result = <any>body
      } else {
        result = `can't parse body ${typeof body}`
      }
      return result
    }

    export function isPureObject(input: any): input is Record<any, any> {
      return null !== input && typeof input === 'object'
    }

    export function isIterable(value: any) {
      if (value === null || value === undefined) {
        return false
      }
      if (ArrayBuffer.isView(value)) {
        return false
      }
      return typeof Symbol !== 'undefined' && typeof value[Symbol.iterator] === 'function'
    }

    export function formatByteSize(bytes: number) {
      if (bytes <= 0) {
        // shouldn't happen?
        return ''
      }
      if (bytes >= 1000 * 1000) {
        return (bytes / 1000 / 1000).toFixed(1) + ' MB'
      }
      if (bytes >= 1000) {
        return (bytes / 1000).toFixed(1) + ' KB'
      }
      return `${bytes}B`
    }

    export const getURL = (urlString: string) => {
      if (urlString.startsWith('//')) {
        const baseUrl = new URL(window.location.href)
        urlString = `${baseUrl.protocol}${urlString}`
      }
      if (urlString.startsWith('http')) {
        return new URL(urlString)
      } else {
        return new URL(urlString, window.location.href)
      }
    }