#434

frontend/src/lib/countsState.ts

@@ -0,0 +1,52 @@
+import { translateUIMessage } from '@/lib/i18n'
+
+import type { CountField, CountsStateRow } from '@/lib/counts'
+import type { LocaleCode } from '@/lib/locales'
+
+
+export const countsStateFields = (trend: boolean): CountField[] => trend
+    ? [{ key: 'period', label: 'counts:state.period' },
+       { key: 'count', label: 'counts:state.postCount' }]
+    : [{ key: 'kind', label: 'counts:columns.kind' },
+       { key: 'tag_id', label: 'counts:columns.resourceId' },
+       { key: 'name', label: 'history:tagName' },
+       { key: 'deprecated', label: 'counts:columns.deprecated' },
+       { key: 'count', label: 'counts:state.postCount' }]
+
+
+export const countsStateCell = (
+    row: CountsStateRow,
+    key: string,
+    locale: LocaleCode,
+): string => {
+  switch (key)
+  {
+  case 'period': return row.period ?? ''
+  case 'count': return row.count == null ? '—' : String (row.count)
+  case 'tag_id': return String (row.tagId)
+  case 'kind': return translateUIMessage (`kinds.${row.kind}`, 'counts', locale).text
+  case 'name': return row.name ?? translateUIMessage ('notRegistered', 'counts', locale).text
+  case 'deprecated': return row.deprecated
+      ? translateUIMessage ('common:states.deprecated', 'counts', locale).text : ''
+  default: return ''
+  }
+}
+
+
+export const countsStateDrill = (
+    params: URLSearchParams,
+    at: string,
+    resource = 'posts',
+    row?: CountsStateRow,
+): string => {
+  const next = new URLSearchParams (params)
+  for (const key of ['sort', 'page', 'tag', 'from', 'before']) next.delete (key)
+  next.set ('mode', 'snapshot')
+  next.set ('at', at)
+  if (row != null)
+  {
+    next.set ('kind', row.kind)
+    next.set ('tag', String (row.tagId))
+  }
+  return `/counts/${resource}?${next}`
+}