feat: add wishlist

layers/wishlist/server/api/wishlist/books/[id]/cover.post.ts

@@ -0,0 +1,22 @@
+import { z } from 'zod'
+
+const coverSchema = z.object({
+  cover: z.string().regex(OPEN_LIBRARY_COVER, 'Not an Open Library cover')
+})
+
+// Public: anyone can fill in a missing cover, but only with an Open Library cover URL.
+export default defineEventHandler(async (event) => {
+  const id = Number(getRouterParam(event, 'id'))
+  const body = coverSchema.safeParse(await readBody(event))
+  if (!Number.isInteger(id) || !body.success) {
+    throw createError({ statusCode: 400, statusMessage: 'Invalid cover' })
+  }
+
+  const table = wishlistTable(event)
+  const rows = await listRows<WishlistRow>(event, table)
+  const row = rows.find(row => row.id === id)
+  if (!row) throw createError({ statusCode: 404, statusMessage: 'No such book' })
+  if (row.cover) return toWishlistBook(row)
+
+  return toWishlistBook(await updateRow<WishlistRow>(event, table, id, { cover: body.data.cover }))
+})

layers/wishlist/server/api/wishlist/books/index.get.ts

@@ -0,0 +1,4 @@
+export default defineEventHandler(async (event) => {
+  const rows = await listRows<WishlistRow>(event, wishlistTable(event))
+  return rows.map(toWishlistBook).filter(book => book.title)
+})