feat: add useNow() to get current timestamp consistent between Suspen…

…se rerenders. Export useNow, useId, useTriggerUpdate, useScheduleUpdate

packages/teamplay/index.js

@@ -17,6 +17,7 @@ export { default as sub } from './orm/sub.js'
 export { default as useSub, setUseDeferredValue as __setUseDeferredValue } from './react/useSub.js'
 export { default as observer } from './react/observer.js'
 export { connection, setConnection, getConnection, fetchOnly, setFetchOnly, publicOnly, setPublicOnly } from './orm/connection.js'
+export { useId, useNow, useScheduleUpdate, useTriggerUpdate } from './react/helpers.js'
 export { GUID_PATTERN, hasMany, hasOne, hasManyFlags, belongsTo, pickFormFields } from '@teamplay/schema'
 export { aggregation, aggregationHeader as __aggregationHeader } from '@teamplay/utils/aggregation'
 export { accessControl } from '@teamplay/utils/accessControl'

packages/teamplay/react/helpers.js

@@ -22,6 +22,12 @@ export function pipeComponentMeta (SourceComponent, TargetComponent, suffix = ''
   return TargetComponent
 }
 
+export function useNow () {
+  const context = useContext(ComponentMetaContext)
+  if (!context) throw Error(ERRORS.useNow)
+  return context.createdAt
+}
+
 export function useId () {
   const context = useContext(ComponentMetaContext)
   if (!context) throw Error(ERRORS.useId)
@@ -63,5 +69,9 @@ const ERRORS = {
   useId: `
     useId() can only be used inside a component wrapped with observer().
     You have probably forgot to wrap your component with observer().
+  `,
+  useNow: `
+    useNow() can only be used inside a component wrapped with observer().
+    You have probably forgot to wrap your component with observer().
   `
 }