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 { ResultList } from '@shared/models'
8 export class RestExtractor {
10 constructor (private router: Router) { }
16 applyToResultListData <T> (result: ResultList<T>, fun: Function, additionalArgs?: any[]): ResultList<T> {
17 const data: T[] = result.data
18 const newData: T[] = []
20 data.forEach(d => newData.push(fun.apply(this, [ d ].concat(additionalArgs))))
28 convertResultListDateToHuman <T> (result: ResultList<T>, fieldsToConvert: string[] = [ 'createdAt' ]): ResultList<T> {
29 return this.applyToResultListData(result, this.convertDateToHuman, [ fieldsToConvert ])
32 convertDateToHuman (target: { [ id: string ]: string }, fieldsToConvert: string[]) {
33 fieldsToConvert.forEach(field => target[field] = dateToHuman(target[field]))
38 handleError (err: any) {
41 if (err.error instanceof Error) {
42 // A client-side or network error occurred. Handle it accordingly.
43 errorMessage = err.error.message
44 console.error('An error occurred:', errorMessage)
45 } else if (typeof err.error === 'string') {
46 errorMessage = err.error
47 } else if (err.status !== undefined) {
48 // A server-side error occurred.
49 if (err.error && err.error.errors) {
50 const errors = err.error.errors
51 const errorsArray: string[] = []
53 Object.keys(errors).forEach(key => {
54 errorsArray.push(errors[key].msg)
57 errorMessage = errorsArray.join('. ')
58 } else if (err.error && err.error.error) {
59 errorMessage = err.error.error
60 } else if (err.status === 413) {
61 errorMessage = $localize`Request is too large for the server.
62 Please contact you administrator if you want to increase the limit size.`
63 } else if (err.status === 429) {
64 const secondsLeft = err.headers.get('retry-after')
66 const minutesLeft = Math.floor(parseInt(secondsLeft, 10) / 60)
67 errorMessage = $localize`Too many attempts, please try again after ${minutesLeft} minutes.`
69 errorMessage = $localize`Too many attempts, please try again later.`
71 } else if (err.status === 500) {
72 errorMessage = $localize`Server error. Please retry later.`
75 errorMessage = errorMessage ? errorMessage : 'Unknown error.'
76 console.error(`Backend returned code ${err.status}, errorMessage is: ${errorMessage}`)
82 const errorObj: { message: string, status: string, body: string } = {
83 message: errorMessage,
89 errorObj.status = err.status
90 errorObj.body = err.error
93 return observableThrowError(errorObj)
96 redirectTo404IfNotFound (obj: { status: number }, status = [ 404 ]) {
97 if (obj && obj.status && status.indexOf(obj.status) !== -1) {
98 // Do not use redirectService to avoid circular dependencies
99 this.router.navigate([ '/404' ], { skipLocationChange: true })
102 return observableThrowError(obj)