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hyper-neutrino
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Jun 23, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| /** | ||
| * Formats a duration in milliseconds into English text. | ||
| * @param duration - The duration in milliseconds | ||
| * @param style - The style to format the duration in | ||
| * @returns The formatted duration | ||
| */ | ||
| export const formatDuration = (duration: number, style = DurationStyle.For): string => { | ||
| if (duration === Infinity) return 'indefinitely'; | ||
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|
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| duration = Math.round(duration / 1000); | ||
|
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| if (duration < 0) { | ||
| const core = _formatDuration(-duration); | ||
| if (style === DurationStyle.Blank) return `negative ${core}`; | ||
| if (style === DurationStyle.For) return `for negative ${core}`; | ||
| if (style === DurationStyle.Until) return `until ${core} ago`; | ||
| } | ||
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| if (duration === 0) { | ||
| if (style === DurationStyle.Blank) return 'no time'; | ||
| if (style === DurationStyle.For) return 'for no time'; | ||
| if (style === DurationStyle.Until) return 'until right now'; | ||
| } | ||
|
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| const core = _formatDuration(duration); | ||
| if (style === DurationStyle.Blank) return core; | ||
| if (style === DurationStyle.For) return `for ${core}`; | ||
| if (style === DurationStyle.Until) return `until ${core} from now`; | ||
|
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| return '??'; | ||
| }; | ||
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| function _formatDuration(duration: number): string { | ||
| if (duration === Infinity) return 'indefinitely'; | ||
|
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| const parts: string[] = []; | ||
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| for (const [name, scale] of formatTimescales) { | ||
| if (duration >= scale) { | ||
| const amount = Math.floor(duration / scale); | ||
| duration %= scale; | ||
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| parts.push(`${amount} ${name}${amount === 1 ? '' : 's'}`); | ||
| } | ||
| } | ||
|
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| return parts.join(' '); | ||
| } | ||
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| export enum DurationStyle { | ||
| Blank, | ||
| For, | ||
| Until, | ||
| } | ||
|
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| const formatTimescales: [string, number][] = [ | ||
| ['day', 86400], | ||
| ['hour', 3600], | ||
| ['minute', 60], | ||
| ['second', 1], | ||
| ]; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| /** | ||
| * Parses English text into a duration in milliseconds. Works for long for (1 day, | ||
| * 3 weeks 2 hours) and short form (1d, 3w2h). | ||
| * | ||
| * @param text - The text to parse | ||
| * @returns The duration in milliseconds or null if invalid | ||
| */ | ||
| export const parseDuration = (text: string): number | null => { | ||
| const match = text.match( | ||
| /^(\d+\s*w(eeks?)?\s*)?(\d+\s*d(ays?)?\s*)?(\d+\s*h((ou)?rs?)?\s*)?(\d+\s*m(in(ute)?s?)?\s*)?(\d+\s*s(ec(ond)?s?)?\s*)?$/, | ||
| ); | ||
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| if (!match) return null; | ||
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| let duration = 0; | ||
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| for (const [index, scale] of parseTimescales) { | ||
| const submatch = match[index]?.match(/\d+/); | ||
| if (submatch) duration += parseInt(submatch[0]) * scale; | ||
| } | ||
|
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| return duration; | ||
| }; | ||
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| const parseTimescales = [ | ||
| [1, 604800000], | ||
| [3, 86400000], | ||
| [5, 3600000], | ||
| [8, 60000], | ||
| [11, 1000], | ||
| ]; |