51 lines
1.5 KiB
TypeScript
51 lines
1.5 KiB
TypeScript
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const STAR_KEY = 'jinrong.analyst.starredQuestions'
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const RECENT_KEY = 'jinrong.analyst.recentQuestions'
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const MAX_RECENT = 8
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export type RecentQuestion = { question: string; at: number }
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function readJson<T>(key: string, fallback: T): T {
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try {
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const raw = localStorage.getItem(key)
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if (!raw) return fallback
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return JSON.parse(raw) as T
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} catch {
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return fallback
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}
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}
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export function loadStarredQuestions(): string[] {
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const list = readJson<string[]>(STAR_KEY, [])
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return Array.isArray(list) ? list : []
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}
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export function saveStarredQuestions(questions: string[]): void {
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localStorage.setItem(STAR_KEY, JSON.stringify(questions.slice(0, 30)))
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}
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export function toggleStarredQuestion(question: string): string[] {
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const q = question.trim()
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if (!q) return loadStarredQuestions()
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const set = new Set(loadStarredQuestions())
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if (set.has(q)) set.delete(q)
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else set.add(q)
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const next = [...set]
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saveStarredQuestions(next)
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return next
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}
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export function loadRecentQuestions(): RecentQuestion[] {
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const list = readJson<RecentQuestion[]>(RECENT_KEY, [])
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return Array.isArray(list) ? list : []
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}
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export function pushRecentQuestion(question: string): RecentQuestion[] {
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const q = question.trim()
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if (!q) return loadRecentQuestions()
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const now = Date.now()
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const rest = loadRecentQuestions().filter((r) => r.question !== q)
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const next = [{ question: q, at: now }, ...rest].slice(0, MAX_RECENT)
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localStorage.setItem(RECENT_KEY, JSON.stringify(next))
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return next
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}
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