feat: add wishlist

layers/diary/server/utils/review.ts

@@ -0,0 +1,75 @@
+import type { H3Event } from 'h3'
+
+interface LookupValue {
+  value: string | null
+}
+
+// title, date and author_or_director are lookups through the `books` link
+export interface ReviewRow {
+  id: number
+  books: LookupValue[]
+  title: LookupValue[]
+  date: LookupValue[]
+  author_or_director: LookupValue[]
+  review: string | null
+  medium: SelectOption | null
+}
+
+interface SelectOption {
+  id: number
+  value: string
+}
+
+interface Field {
+  name: string
+  select_options?: SelectOption[]
+  link_row_table_id?: number
+}
+
+const FIELD_CACHE_MS = 10 * 60_000
+
+let reviewFields: { fields: Field[], fetchedAt: number } | null = null
+
+async function fields(event: H3Event): Promise<Field[]> {
+  if (!reviewFields || Date.now() - reviewFields.fetchedAt > FIELD_CACHE_MS) {
+    reviewFields = { fields: await listFields<Field>(event, diaryTable(event, 'reviews')), fetchedAt: Date.now() }
+  }
+  return reviewFields.fields
+}
+
+function toMedium(value: string | undefined): Medium | null {
+  return MEDIUM_KEYS.find(medium => MEDIUMS[medium].label === value) ?? null
+}
+
+export function lookupValues(values: LookupValue[] | null | undefined): string[] {
+  return (values ?? []).map(({ value }) => value?.trim()).filter((value): value is string => !!value)
+}
+
+export function toReview(row: ReviewRow): Review {
+  return {
+    id: row.id,
+    date: lookupValues(row.date)[0] ?? '',
+    title: lookupValues(row.title).join(' / ') || lookupValues(row.books).join(' / '),
+    author: lookupValues(row.author_or_director).join(', ') || null,
+    text: (row.review ?? '').replace(/&nbsp;/g, ' ').trim(),
+    medium: toMedium(row.medium?.value)
+  }
+}
+
+export async function mediumOptionId(event: H3Event, medium: Medium): Promise<number> {
+  const options = (await fields(event)).find(field => field.name === 'medium')?.select_options ?? []
+  const id = options.find(option => toMedium(option.value) === medium)?.id
+  if (!id) {
+    throw createError({ statusCode: 500, statusMessage: `The medium field has no "${MEDIUMS[medium].label}" option` })
+  }
+  return id
+}
+
+/** The books table, taken from the reviews table's `books` link field. */
+export async function booksTableId(event: H3Event): Promise<string> {
+  const id = (await fields(event)).find(field => field.name === 'books')?.link_row_table_id
+  if (!id) {
+    throw createError({ statusCode: 500, statusMessage: 'The reviews table has no "books" link field' })
+  }
+  return String(id)
+}