107 lines
3.4 KiB
JavaScript
107 lines
3.4 KiB
JavaScript
import {
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ACCOUNT_BLOCK_SUCCESS,
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ACCOUNT_MUTE_SUCCESS,
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} from '../actions/accounts';
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import { CONTEXT_FETCH_SUCCESS } from '../actions/statuses';
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import { TIMELINE_DELETE, TIMELINE_UPDATE } from '../actions/timelines';
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import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
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import compareId from '../compare_id';
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const initialState = ImmutableMap({
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inReplyTos: ImmutableMap(),
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replies: ImmutableMap(),
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});
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const normalizeContext = (immutableState, id, ancestors, descendants) => immutableState.withMutations(state => {
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state.update('inReplyTos', immutableAncestors => immutableAncestors.withMutations(inReplyTos => {
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state.update('replies', immutableDescendants => immutableDescendants.withMutations(replies => {
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function addReply({ id, in_reply_to_id }) {
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if (in_reply_to_id && !inReplyTos.has(id)) {
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replies.update(in_reply_to_id, ImmutableList(), siblings => {
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const index = siblings.findLastIndex(sibling => compareId(sibling, id) < 0);
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return siblings.insert(index + 1, id);
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});
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inReplyTos.set(id, in_reply_to_id);
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}
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}
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// We know in_reply_to_id of statuses but `id` itself.
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// So we assume that the status of the id replies to last ancestors.
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ancestors.forEach(addReply);
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if (ancestors[0]) {
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addReply({ id, in_reply_to_id: ancestors[ancestors.length - 1].id });
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}
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descendants.forEach(addReply);
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}));
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}));
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});
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const deleteFromContexts = (immutableState, ids) => immutableState.withMutations(state => {
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state.update('inReplyTos', immutableAncestors => immutableAncestors.withMutations(inReplyTos => {
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state.update('replies', immutableDescendants => immutableDescendants.withMutations(replies => {
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ids.forEach(id => {
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const inReplyToIdOfId = inReplyTos.get(id);
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const repliesOfId = replies.get(id);
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const siblings = replies.get(inReplyToIdOfId);
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if (siblings) {
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replies.set(inReplyToIdOfId, siblings.filterNot(sibling => sibling === id));
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}
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if (repliesOfId) {
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repliesOfId.forEach(reply => inReplyTos.delete(reply));
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}
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inReplyTos.delete(id);
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replies.delete(id);
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});
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}));
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}));
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});
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const filterContexts = (state, relationship, statuses) => {
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const ownedStatusIds = statuses
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.filter(status => status.get('account') === relationship.id)
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.map(status => status.get('id'));
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return deleteFromContexts(state, ownedStatusIds);
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};
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const updateContext = (state, status) => {
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if (status.in_reply_to_id) {
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return state.withMutations(mutable => {
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const replies = mutable.getIn(['replies', status.in_reply_to_id], ImmutableList());
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mutable.setIn(['inReplyTos', status.id], status.in_reply_to_id);
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if (!replies.includes(status.id)) {
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mutable.setIn(['replies', status.in_reply_to_id], replies.push(status.id));
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}
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});
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}
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return state;
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};
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export default function replies(state = initialState, action) {
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switch(action.type) {
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case ACCOUNT_BLOCK_SUCCESS:
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case ACCOUNT_MUTE_SUCCESS:
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return filterContexts(state, action.relationship, action.statuses);
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case CONTEXT_FETCH_SUCCESS:
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return normalizeContext(state, action.id, action.ancestors, action.descendants);
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case TIMELINE_DELETE:
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return deleteFromContexts(state, [action.id]);
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case TIMELINE_UPDATE:
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return updateContext(state, action.status);
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default:
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return state;
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}
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};
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