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// Thanks: https://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript
import { DatePipe } from '@angular/common'
import { environment } from '../../../environments/environment'
import { AuthService } from '../../core/auth'
function getParameterByName (name: string, url: string) {
if (!url) url = window.location.href
name = name.replace(/[\[\]]/g, '\\$&')
const regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)')
const results = regex.exec(url)
if (!results) return null
if (!results[2]) return ''
return decodeURIComponent(results[2].replace(/\+/g, ' '))
}
function populateAsyncUserVideoChannels (authService: AuthService, channel: { id: number, label: string, support?: string }[]) {
return new Promise(res => {
authService.userInformationLoaded
.subscribe(
() => {
const user = authService.getUser()
if (!user) return
const videoChannels = user.videoChannels
if (Array.isArray(videoChannels) === false) return
videoChannels.forEach(c => channel.push({ id: c.id, label: c.displayName, support: c.support }))
return res()
}
)
})
}
function getAbsoluteAPIUrl () {
let absoluteAPIUrl = environment.apiUrl
if (!absoluteAPIUrl) {
// The API is on the same domain
absoluteAPIUrl = window.location.origin
}
return absoluteAPIUrl
}
const datePipe = new DatePipe('en')
function dateToHuman (date: string) {
return datePipe.transform(date, 'medium')
}
function durationToString (duration: number) {
const hours = Math.floor(duration / 3600)
const minutes = Math.floor((duration % 3600) / 60)
const seconds = duration % 60
const minutesPadding = minutes >= 10 ? '' : '0'
const secondsPadding = seconds >= 10 ? '' : '0'
const displayedHours = hours > 0 ? hours.toString() + ':' : ''
return displayedHours + minutesPadding + minutes.toString() + ':' + secondsPadding + seconds.toString()
}
function immutableAssign <A, B> (target: A, source: B) {
return Object.assign({}, target, source)
}
function objectToUrlEncoded (obj: any) {
const str: string[] = []
for (const key of Object.keys(obj)) {
str.push(encodeURIComponent(key) + '=' + encodeURIComponent(obj[key]))
}
return str.join('&')
}
// Thanks: https://gist.github.com/ghinda/8442a57f22099bdb2e34
function objectToFormData (obj: any, form?: FormData, namespace?: string) {
const fd = form || new FormData()
let formKey
for (const key of Object.keys(obj)) {
if (namespace) formKey = `${namespace}[${key}]`
else formKey = key
if (obj[key] === undefined) continue
if (Array.isArray(obj[key]) && obj[key].length === 0) {
fd.append(key, null)
continue
}
if (obj[key] !== null && typeof obj[ key ] === 'object' && !(obj[ key ] instanceof File)) {
objectToFormData(obj[ key ], fd, formKey)
} else {
fd.append(formKey, obj[ key ])
}
}
return fd
}
function objectLineFeedToHtml (obj: any, keyToNormalize: string) {
return immutableAssign(obj, {
[keyToNormalize]: lineFeedToHtml(obj[keyToNormalize])
})
}
function lineFeedToHtml (text: string) {
if (!text) return text
return text.replace(/\r?\n|\r/g, '<br />')
}
function removeElementFromArray <T> (arr: T[], elem: T) {
const index = arr.indexOf(elem)
if (index !== -1) arr.splice(index, 1)
}
function sortBy (obj: any[], key1: string, key2?: string) {
return obj.sort((a, b) => {
const elem1 = key2 ? a[key1][key2] : a[key1]
const elem2 = key2 ? b[key1][key2] : b[key1]
if (elem1 < elem2) return -1
if (elem1 === elem2) return 0
return 1
})
}
function scrollToTop () {
window.scroll(0, 0)
}
export {
sortBy,
durationToString,
lineFeedToHtml,
objectToUrlEncoded,
getParameterByName,
populateAsyncUserVideoChannels,
getAbsoluteAPIUrl,
dateToHuman,
immutableAssign,
objectToFormData,
objectLineFeedToHtml,
removeElementFromArray,
scrollToTop
}
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