feat: add packer

layers/packer/server/utils/packer.ts

@@ -0,0 +1,62 @@
+import type { H3Event } from 'h3'
+
+interface SelectValue {
+  value: string
+}
+
+export interface PackerRow {
+  id: number
+  item: string | null
+  category: SelectValue | null
+  sharable: boolean
+  every_n_days?: string | null
+  weight_g?: string | null
+  season?: SelectValue[] | null
+  activity?: SelectValue[] | null
+  /** A single select; a multiple select works too */
+  weather?: SelectValue | SelectValue[] | null
+}
+
+interface PackerField {
+  name: string
+  select_options?: SelectValue[]
+}
+
+export function packerTable(event: H3Event): string {
+  const { baserowPackerTableId } = useRuntimeConfig(event)
+  if (!baserowPackerTableId) {
+    throw createError({ statusCode: 500, statusMessage: 'NUXT_BASEROW_PACKER_TABLE_ID is not set' })
+  }
+  return baserowPackerTableId
+}
+
+/** Baserow sends numbers as strings; empty, zero and negative mean "not set" */
+function positive(value: string | null | undefined): number | null {
+  const number = Number(value)
+  return value && number > 0 ? number : null
+}
+
+export function toPackerItem(row: PackerRow): PackerItem | null {
+  const name = (row.item ?? '').trim()
+  if (!name) return null
+  return {
+    id: row.id,
+    name,
+    category: row.category?.value ?? 'Andere',
+    sharable: !!row.sharable,
+    everyNDays: positive(row.every_n_days),
+    weightG: positive(row.weight_g),
+    seasons: (row.season ?? [])
+      .map(option => option.value as PackerSeason)
+      .filter(season => PACKER_SEASONS.includes(season)),
+    activities: (row.activity ?? []).map(option => option.value),
+    weathers: [row.weather ?? []].flat().map(option => option.value)
+  }
+}
+
+/** The options of the `activity` and `weather` fields, in the order set in Baserow */
+export async function listPackerOptions(event: H3Event): Promise<Pick<PackerData, 'activities' | 'weathers'>> {
+  const fields = await listFields<PackerField>(event, packerTable(event))
+  const options = (name: string) => (fields.find(field => field.name === name)?.select_options ?? []).map(option => option.value)
+  return { activities: options('activity'), weathers: options('weather') }
+}