import { List, Map } from 'immutable';
import { createRequestReducer } from '../funcTools/request';
import { fetchListType, saveType, removeType, editType, initType } from '../funcTools/types';
import { createItemInListUpdater } from '../funcTools/tools';

const idKey = 'siteId';
const itemInListUpdater = createItemInListUpdater(idKey);

export const createIntegrationReducer = (name, Config) => {
	const FETCH_LIST = fetchListType(name);
	const SAVE = saveType(name);
	const REMOVE = removeType(name);
	const EDIT = editType(name);
	const INIT = initType(name);

	const initialState = Map({
		instance: Config(),
		list: List(),
		fetched: false,
		issuesFetched: false
	});
	const reducer = (state = initialState, action = {}) => {
	  switch (action.type) {
	    case FETCH_LIST.success:
				return state.set('list', Array.isArray(action.data) ? 
					List(action.data).map(Config) : List([new Config(action.data)])).set(action.name + 'Fetched', true);
	    case SAVE.success:
	      const config = Config(action.data);
	      return state
	        .update('list', itemInListUpdater(config))
	        .set('instance', config);
	    case REMOVE.success:
	      return state
	        .update('list', list => list.filter(site => site.siteId !== action.siteId))
	        .set('instance', Config())
	    case EDIT:
	      return state.mergeIn([ 'instance' ], action.instance);
	    case INIT:
	      return state.set('instance', Config(action.instance));
	  }
	  return state;
	};
	return createRequestReducer({
	  fetchRequest: FETCH_LIST,
	  saveRequest: SAVE,
	  removeRequest: REMOVE,
	}, reducer);
}