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path: root/app/assets/javascripts/components/reducers/statuses.jsx
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import {
  REBLOG_SUCCESS,
  UNREBLOG_SUCCESS,
  FAVOURITE_SUCCESS,
  UNFAVOURITE_SUCCESS
} from '../actions/interactions';
import {
  STATUS_FETCH_SUCCESS,
  CONTEXT_FETCH_SUCCESS
} from '../actions/statuses';
import {
  TIMELINE_REFRESH_SUCCESS,
  TIMELINE_UPDATE,
  TIMELINE_DELETE,
  TIMELINE_EXPAND_SUCCESS
} from '../actions/timelines';
import {
  ACCOUNT_TIMELINE_FETCH_SUCCESS,
  ACCOUNT_TIMELINE_EXPAND_SUCCESS
} from '../actions/accounts';
import Immutable from 'immutable';

const normalizeStatus = (state, status) => {
  status.account = status.account.id;

  if (status.reblog && status.reblog.id) {
    state         = normalizeStatus(state, status.reblog);
    status.reblog = status.reblog.id;
  }

  return state.set(status.id, Immutable.fromJS(status));
};

const normalizeStatuses = (state, statuses) => {
  statuses.forEach(status => {
    state = normalizeStatus(state, status);
  });

  return state;
};

const deleteStatus = (state, id, references) => {
  references.forEach(ref => {
    state = deleteStatus(state, ref[0], []);
  });

  return state.delete(id);
};

const initialState = Immutable.Map();

export default function statuses(state = initialState, action) {
  switch(action.type) {
    case TIMELINE_UPDATE:
    case STATUS_FETCH_SUCCESS:
      return normalizeStatus(state, action.status);
    case REBLOG_SUCCESS:
    case UNREBLOG_SUCCESS:
    case FAVOURITE_SUCCESS:
    case UNFAVOURITE_SUCCESS:
      return normalizeStatus(state, action.response);
    case TIMELINE_REFRESH_SUCCESS:
    case TIMELINE_EXPAND_SUCCESS:
    case ACCOUNT_TIMELINE_FETCH_SUCCESS:
    case ACCOUNT_TIMELINE_EXPAND_SUCCESS:
    case CONTEXT_FETCH_SUCCESS:
      return normalizeStatuses(state, action.statuses);
    case TIMELINE_DELETE:
      return deleteStatus(state, action.id, action.references);
    default:
      return state;
  }
};