client/src/app/core/rest/rest-extractor.service.ts

   1 import { throwError as observableThrowError } from 'rxjs'
   2 import { Injectable } from '@angular/core'
   3 import { Router } from '@angular/router'
   4 import { dateToHuman } from '@app/helpers'
   5 import { HttpStatusCode, ResultList } from '@shared/models'
   6
   7 @Injectable()
   8 export class RestExtractor {
   9
  10   constructor (private router: Router) { }
  11
  12   applyToResultListData <T, A, U> (
  13     result: ResultList<T>,
  14     fun: (data: T, ...args: A[]) => U,
  15     additionalArgs: A[] = []
  16   ): ResultList<U> {
  17     const data: T[] = result.data
  18
  19     return {
  20       total: result.total,
  21       data: data.map(d => fun.apply(this, [ d, ...additionalArgs ]))
  22     }
  23   }
  24
  25   convertResultListDateToHuman <T> (result: ResultList<T>, fieldsToConvert: string[] = [ 'createdAt' ]): ResultList<T> {
  26     return this.applyToResultListData(result, this.convertDateToHuman, [ fieldsToConvert ])
  27   }
  28
  29   convertDateToHuman (target: any, fieldsToConvert: string[]) {
  30     fieldsToConvert.forEach(field => {
  31       target[field] = dateToHuman(target[field])
  32     })
  33
  34     return target
  35   }
  36
  37   handleError (err: any) {
  38     let errorMessage
  39
  40     if (err.error instanceof Error) {
  41       // A client-side or network error occurred. Handle it accordingly.
  42       errorMessage = err.error.detail || err.error.title
  43       console.error('An error occurred:', errorMessage)
  44     } else if (typeof err.error === 'string') {
  45       errorMessage = err.error
  46     } else if (err.status !== undefined) {
  47       // A server-side error occurred.
  48       if (err.error?.errors) {
  49         const errors = err.error.errors
  50         const errorsArray: string[] = []
  51
  52         Object.keys(errors).forEach(key => {
  53           errorsArray.push(errors[key].msg)
  54         })
  55
  56         errorMessage = errorsArray.join('. ')
  57       } else if (err.error?.error) {
  58         errorMessage = err.error.error
  59       } else if (err.status === HttpStatusCode.PAYLOAD_TOO_LARGE_413) {
  60         // eslint-disable-next-line max-len
  61         errorMessage = $localize`Media is too large for the server. Please contact you administrator if you want to increase the limit size.`
  62       } else if (err.status === HttpStatusCode.TOO_MANY_REQUESTS_429) {
  63         const secondsLeft = err.headers.get('retry-after')
  64         if (secondsLeft) {
  65           const minutesLeft = Math.floor(parseInt(secondsLeft, 10) / 60)
  66           errorMessage = $localize`Too many attempts, please try again after ${minutesLeft} minutes.`
  67         } else {
  68           errorMessage = $localize`Too many attempts, please try again later.`
  69         }
  70       } else if (err.status === HttpStatusCode.INTERNAL_SERVER_ERROR_500) {
  71         errorMessage = $localize`Server error. Please retry later.`
  72       }
  73
  74       errorMessage = errorMessage || 'Unknown error.'
  75       console.error(`Backend returned code ${err.status}, errorMessage is: ${errorMessage}`)
  76     } else {
  77       console.error(err)
  78       errorMessage = err
  79     }
  80
  81     const errorObj: { message: string, status: string, body: string } = {
  82       message: errorMessage,
  83       status: undefined,
  84       body: undefined
  85     }
  86
  87     if (err.status) {
  88       errorObj.status = err.status
  89       errorObj.body = err.error
  90     }
  91
  92     return observableThrowError(() => errorObj)
  93   }
  94
  95   redirectTo404IfNotFound (obj: { status: number }, type: 'video' | 'other', status = [ HttpStatusCode.NOT_FOUND_404 ]) {
  96     if (obj?.status && status.includes(obj.status)) {
  97       // Do not use redirectService to avoid circular dependencies
  98       this.router.navigate([ '/404' ], { state: { type, obj }, skipLocationChange: true })
  99     }
 100
 101     return observableThrowError(() => obj)
 102   }
 103 }