65 lines
2.3 KiB
TypeScript
65 lines
2.3 KiB
TypeScript
import { List as ImmutableList, Map as ImmutableMap, Record as ImmutableRecord } from 'immutable';
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import {
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ACCOUNT_FOLLOW_SUCCESS,
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ACCOUNT_UNFOLLOW_SUCCESS,
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} from 'soapbox/actions/accounts';
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import { ACCOUNT_IMPORT, ACCOUNTS_IMPORT } from 'soapbox/actions/importer';
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import { STREAMING_FOLLOW_RELATIONSHIPS_UPDATE } from 'soapbox/actions/streaming';
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import type { AnyAction } from 'redux';
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import type { APIEntity } from 'soapbox/types/entities';
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const CounterRecord = ImmutableRecord({
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followers_count: 0,
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following_count: 0,
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statuses_count: 0,
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});
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type Counter = ReturnType<typeof CounterRecord>;
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type State = ImmutableMap<string, Counter>;
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type APIEntities = Array<APIEntity>;
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const normalizeAccount = (state: State, account: APIEntity) => state.set(account.id, CounterRecord({
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followers_count: account.followers_count,
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following_count: account.following_count,
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statuses_count: account.statuses_count,
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}));
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const normalizeAccounts = (state: State, accounts: ImmutableList<APIEntities>) => {
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accounts.forEach(account => {
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state = normalizeAccount(state, account);
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});
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return state;
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};
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const updateFollowCounters = (state: State, counterUpdates: APIEntities) => {
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return state.withMutations(state => {
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counterUpdates.forEach((counterUpdate) => {
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state.update(counterUpdate.id, CounterRecord(), counters => counters.merge({
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followers_count: counterUpdate.follower_count,
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following_count: counterUpdate.following_count,
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}));
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});
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});
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};
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export default function accountsCounters(state: State = ImmutableMap<string, Counter>(), action: AnyAction) {
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switch (action.type) {
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case ACCOUNT_IMPORT:
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return normalizeAccount(state, action.account);
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case ACCOUNTS_IMPORT:
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return normalizeAccounts(state, action.accounts);
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case ACCOUNT_FOLLOW_SUCCESS:
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return action.alreadyFollowing ? state :
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state.updateIn([action.relationship.id, 'followers_count'], 0, (count) => typeof count === 'number' ? count + 1 : 0);
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case ACCOUNT_UNFOLLOW_SUCCESS:
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return state.updateIn([action.relationship.id, 'followers_count'], 0, (count) => typeof count === 'number' ? Math.max(0, count - 1) : 0);
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case STREAMING_FOLLOW_RELATIONSHIPS_UPDATE:
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return updateFollowCounters(state, [action.follower, action.following]);
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default:
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return state;
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}
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}
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