switch from next to vue

src/lib/sync.ts

@@ -0,0 +1,48 @@
+import type { Database } from 'sql.js'
+import type { Entry } from './types'
+import { getMeta, persistDb, setMeta, upsertEntries } from './db'
+
+const LAST_SYNC_KEY = 'last_sync_at'
+
+export async function syncEntries(db: Database) {
+  const lastSyncAt = getMeta(db, LAST_SYNC_KEY)
+  const url = new URL('https://sanasto.rin.no/api/entries')
+  if (lastSyncAt) {
+    url.searchParams.set('since', lastSyncAt)
+  }
+
+  const response = await fetch(url.toString(), {
+    headers: {
+      'X-Sanasto-App': 'app.sanasto',
+    },
+  })
+  if (!response.ok) {
+    throw new Error(`Sync failed with ${response.status}`)
+  }
+
+  const entries = (await response.json()) as Entry[]
+  if (entries.length === 0) {
+    return { updated: 0, lastSyncAt }
+  }
+
+  upsertEntries(db, entries)
+
+  const newest = entries.reduce<Date | null>((current, entry) => {
+    if (!entry.updated_at) {
+      return current
+    }
+    const date = new Date(entry.updated_at)
+    if (!current || date > current) {
+      return date
+    }
+    return current
+  }, lastSyncAt ? new Date(lastSyncAt) : null)
+
+  if (newest) {
+    setMeta(db, LAST_SYNC_KEY, newest.toISOString())
+  }
+
+  await persistDb(db)
+
+  return { updated: entries.length, lastSyncAt: newest?.toISOString() ?? lastSyncAt }
+}