feat: entry list at /content/:key

web/src/lib/entryCells.ts

@@ -0,0 +1,95 @@
+import { formatNumber, t } from '@/i18n'
+import type { BuiltinField } from '@/lib/contentTypes'
+import { formatAbsoluteDate, formatAbsoluteDateFromIso } from '@/lib/relativeDate'
+
+export type CellKind = 'empty' | 'text' | 'richtext' | 'number' | 'boolean' | 'date' | 'choice'
+
+export interface CellView {
+	kind: CellKind
+	text: string
+	yes?: boolean
+}
+
+export const EMPTY_TEXT = '–'
+
+const EMPTY: CellView = { kind: 'empty', text: '' }
+const ISO_DAY = /^(\d{4})-(\d{2})-(\d{2})/
+const LINE_PREFIX = /^\s{0,3}(?:#{1,6}(?:\s+|$)|>\s?|[-*+]\s+|\d+[.)]\s+)+/
+const IMAGE_OR_LINK = /!?\[([^\]]*)\]\([^)]*\)/g
+const EMPHASIS = /(\*\*|__|\*|`|~~)/g
+
+export function richTextFirstLine(markdown: string) {
+	for (const line of markdown.split(/\r?\n/)) {
+		const plain = line
+			.replace(LINE_PREFIX, '')
+			.replace(IMAGE_OR_LINK, '$1')
+			.replace(EMPHASIS, '')
+			.trim()
+		if (plain) {
+			return plain
+		}
+	}
+	return ''
+}
+
+export function formatDayValue(value: string) {
+	const match = ISO_DAY.exec(value)
+	if (!match) {
+		return value
+	}
+	return formatAbsoluteDate(new Date(Number(match[1]), Number(match[2]) - 1, Number(match[3])))
+}
+
+export function describeCell(field: BuiltinField, value: unknown): CellView {
+	if (value === undefined || value === null || value === '') {
+		return EMPTY
+	}
+	switch (field.type) {
+		case 'boolean':
+			return { kind: 'boolean', text: '', yes: value === true }
+		case 'number':
+			return typeof value === 'number'
+				? { kind: 'number', text: formatNumber(value) }
+				: { kind: 'number', text: String(value) }
+		case 'date':
+			return { kind: 'date', text: formatDayValue(String(value)) }
+		case 'select':
+			return { kind: 'choice', text: String(value) }
+		case 'richtext': {
+			const line = richTextFirstLine(String(value))
+			return line ? { kind: 'richtext', text: line } : EMPTY
+		}
+		default:
+			return { kind: 'text', text: String(value) }
+	}
+}
+
+export function formatEntryDate(iso: string) {
+	return formatAbsoluteDateFromIso(iso)
+}
+
+export function isEmptyCell(cell: CellView) {
+	return cell.kind === 'empty'
+}
+
+export function plainCellText(cell: CellView) {
+	if (cell.kind === 'empty') {
+		return EMPTY_TEXT
+	}
+	if (cell.kind === 'boolean') {
+		return cell.yes ? t('Yes') : t('No')
+	}
+	return cell.text
+}
+
+export interface CardFields {
+	first?: BuiltinField
+	second?: BuiltinField
+	choice?: BuiltinField
+}
+
+export function cardFields(fields: BuiltinField[]): CardFields {
+	const [first, second] = fields
+	const choice = fields.find((field) => field.type === 'select')
+	return { first, second, choice: choice === first ? undefined : choice }
+}