34 lines
1.0 KiB
TypeScript
34 lines
1.0 KiB
TypeScript
import { clearCachedFeed, loadCachedFeed, saveCachedFeed } from "@/shared/db/feed-cache-db"
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import type { PGlite } from "@electric-sql/pglite"
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import type { FeedItem } from "./assemble-feed"
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export interface FeedCacheData {
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items: FeedItem[]
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updatedAt: number
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}
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export async function loadFeedCache(db: PGlite): Promise<FeedCacheData | null> {
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return loadCachedFeed(db)
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}
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export async function saveFeedCache(db: PGlite, items: FeedItem[]): Promise<void> {
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await saveCachedFeed(db, items)
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}
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export async function clearFeedCache(db: PGlite): Promise<void> {
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await clearCachedFeed(db)
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}
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export function mergeFeedItems(cached: FeedItem[], fresh: FeedItem[]): FeedItem[] {
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const map = new Map<string, FeedItem>()
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for (const item of cached) map.set(item.id, item)
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for (const item of fresh) map.set(item.id, item)
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return Array.from(map.values()).sort((a, b) => {
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if (a.date && b.date) return b.date.localeCompare(a.date)
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if (!a.date && b.date) return 1
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if (a.date && !b.date) return -1
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return a.title.localeCompare(b.title)
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})
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}
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