41 lines
1.6 KiB
TypeScript
41 lines
1.6 KiB
TypeScript
import { Pipe, PipeTransform } from '@angular/core'
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import { I18n } from '@ngx-translate/i18n-polyfill'
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// Thanks: https://stackoverflow.com/questions/3177836/how-to-format-time-since-xxx-e-g-4-minutes-ago-similar-to-stack-exchange-site
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@Pipe({ name: 'myFromNow' })
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export class FromNowPipe implements PipeTransform {
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constructor (private i18n: I18n) { }
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transform (arg: number | Date | string) {
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const argDate = new Date(arg)
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const seconds = Math.floor((Date.now() - argDate.getTime()) / 1000)
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let interval = Math.floor(seconds / 31536000)
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if (interval > 1) {
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return this.i18n('{{interval}} years ago', { interval })
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}
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interval = Math.floor(seconds / 2592000)
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if (interval > 1) return this.i18n('{{interval}} months ago', { interval })
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if (interval === 1) return this.i18n('{{interval}} month ago', { interval })
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interval = Math.floor(seconds / 604800)
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if (interval > 1) return this.i18n('{{interval}} weeks ago', { interval })
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if (interval === 1) return this.i18n('{{interval}} week ago', { interval })
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interval = Math.floor(seconds / 86400)
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if (interval > 1) return this.i18n('{{interval}} days ago', { interval })
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if (interval === 1) return this.i18n('{{interval}} day ago', { interval })
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interval = Math.floor(seconds / 3600)
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if (interval > 1) return this.i18n('{{interval}} hours ago', { interval })
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if (interval === 1) return this.i18n('{{interval}} hour ago', { interval })
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interval = Math.floor(seconds / 60)
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if (interval >= 1) return this.i18n('{{interval}} min ago', { interval })
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return this.i18n('{{interval}} sec ago', { interval: Math.floor(seconds) })
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}
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}
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