72 lines
2.2 KiB
TypeScript
72 lines
2.2 KiB
TypeScript
import { createFeatureSelector, createSelector } from '@ngrx/store';
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import { MessagesState, messagesAdapter } from './messages.reducer';
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export const selectMessagesState = createFeatureSelector<MessagesState>('messages');
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const { selectIds, selectEntities, selectAll, selectTotal } = messagesAdapter.getSelectors();
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export const selectAllMessages = createSelector(selectMessagesState, selectAll);
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export const selectMessagesEntities = createSelector(selectMessagesState, selectEntities);
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export const selectMessagesIds = createSelector(selectMessagesState, selectIds);
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export const selectMessagesTotal = createSelector(selectMessagesState, selectTotal);
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export const selectMessagesLoading = createSelector(
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selectMessagesState,
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(state) => state.loading
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);
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export const selectMessagesError = createSelector(
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selectMessagesState,
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(state) => state.error
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);
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export const selectMessagesSyncing = createSelector(
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selectMessagesState,
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(state) => state.syncing
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);
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export const selectCurrentRoomId = createSelector(
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selectMessagesState,
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(state) => state.currentRoomId
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);
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export const selectCurrentRoomMessages = createSelector(
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selectAllMessages,
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selectCurrentRoomId,
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(messages, roomId) => roomId ? messages.filter((m) => m.roomId === roomId) : []
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);
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/** Select messages for the currently active text channel */
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export const selectChannelMessages = (channelId: string) =>
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createSelector(
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selectAllMessages,
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selectCurrentRoomId,
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(messages, roomId) => {
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if (!roomId) return [];
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return messages.filter(
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(m) => m.roomId === roomId && (m.channelId || 'general') === channelId
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);
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}
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);
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export const selectMessageById = (id: string) =>
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createSelector(selectMessagesEntities, (entities) => entities[id]);
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export const selectMessagesByRoomId = (roomId: string) =>
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createSelector(selectAllMessages, (messages) =>
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messages.filter((m) => m.roomId === roomId)
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);
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export const selectRecentMessages = (limit: number) =>
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createSelector(selectAllMessages, (messages) =>
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messages.slice(-limit)
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);
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export const selectMessagesWithReactions = createSelector(
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selectAllMessages,
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(messages) => messages.filter((m) => m.reactions.length > 0)
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);
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