51 lines
1.4 KiB
TypeScript
51 lines
1.4 KiB
TypeScript
/**
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* 思考页搜索历史：对齐 PC blog_search_history，最多 10 条。
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* 小程序用 uni.setStorageSync，与 localStorage key 保持一致便于跨端对齐。
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*/
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export const SEARCH_HISTORY_KEY = 'blog_search_history'
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const MAX_HISTORY = 10
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export function useSearchHistory() {
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/** 读取历史列表 */
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const readHistory = (): string[] => {
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try {
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const raw = uni.getStorageSync(SEARCH_HISTORY_KEY)
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if (!raw) return []
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const parsed = typeof raw === 'string' ? JSON.parse(raw) : raw
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return Array.isArray(parsed) ? parsed.filter((item): item is string => typeof item === 'string') : []
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}
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catch {
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return []
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}
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}
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const writeHistory = (items: string[]) => {
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uni.setStorageSync(SEARCH_HISTORY_KEY, JSON.stringify(items.slice(0, MAX_HISTORY)))
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}
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const getHistory = () => readHistory()
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/** 写入关键词（去重置顶） */
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const addHistory = (keyword: string) => {
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const trimmed = keyword.trim()
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if (!trimmed) return
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const next = [trimmed, ...readHistory().filter(item => item !== trimmed)].slice(0, MAX_HISTORY)
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writeHistory(next)
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}
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const removeHistory = (keyword: string) => {
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writeHistory(readHistory().filter(item => item !== keyword))
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}
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const clearHistory = () => {
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uni.removeStorageSync(SEARCH_HISTORY_KEY)
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}
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return {
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getHistory,
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addHistory,
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removeHistory,
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clearHistory,
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}
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}
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