55 lines
1.2 KiB
TypeScript
55 lines
1.2 KiB
TypeScript
import type { Author, Reaction, Shout, Stat, Topic, TopicStat } from '../graphql/types.gen'
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export const byFirstChar = (a, b) => (a.name || a.title || '').localeCompare(b.name || b.title || '')
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export const byCreated = (a: Shout | Reaction, b: Shout | Reaction) => {
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const x = new Date(a?.createdAt)
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const y = new Date(b?.createdAt)
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if (x > y) return -1
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if (x < y) return 1
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return 0
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}
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export const byLength = (
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a: (Shout | Reaction | Topic | Author)[],
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b: (Shout | Reaction | Topic | Author)[],
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) => {
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const x = a.length
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const y = b.length
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if (x > y) return -1
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if (x < y) return 1
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return 0
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}
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export const byStat = (metric: keyof Stat | keyof TopicStat) => {
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return (a, b) => {
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const x = (a?.stat && a.stat[metric]) || 0
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const y = (b?.stat && b.stat[metric]) || 0
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if (x > y) return -1
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if (x < y) return 1
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return 0
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}
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}
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export const byTopicStatDesc = (metric: keyof TopicStat) => {
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return (a: Topic, b: Topic) => {
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const x = (a?.stat && a.stat[metric]) || 0
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const y = (b?.stat && b.stat[metric]) || 0
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if (x > y) return -1
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if (x < y) return 1
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return 0
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}
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}
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export const sortBy = (data, metric) => {
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const x = [...data]
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x.sort(typeof metric === 'function' ? metric : byStat(metric))
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return x
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}
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