kitchen-simulator/es/reducers/lines-reducer.js

It is a kitchen simulator (self-contained micro-frontend).

import { Line } from "../class/export";
import { history } from "../utils/export";
import { SELECT_TOOL_DRAWING_LINE, BEGIN_DRAWING_LINE, UPDATE_DRAWING_LINE, END_DRAWING_LINE, BEGIN_DRAGGING_LINE, UPDATE_DRAGGING_LINE, END_DRAGGING_LINE, SELECT_LINE, STOP_DRAWING_LINE, SET_RELATED_LINE } from "../constants";
export default function (state, action) {
  switch (action.type) {
    case SELECT_TOOL_DRAWING_LINE:
      sessionStorage.setItem('hintTextShow', true);
      setTimeout(function () {
        sessionStorage.setItem('hintTextShow', false);
      }, 500);
      return Line.selectToolDrawingLine(state, action.sceneComponentType).updatedState;
    case BEGIN_DRAWING_LINE:
      state = state.merge({
        sceneHistory: history.historyPush(state.sceneHistory, state.scene)
      });
      return Line.beginDrawingLine(state, action.layerID, action.x, action.y).updatedState;
    case UPDATE_DRAWING_LINE:
      return Line.updateDrawingLine(state, action.x, action.y, action.relatedLines).updatedState;
    case STOP_DRAWING_LINE:
      return Line.stopDrawingLine(state).updatedState;
    case END_DRAWING_LINE:
      state = state.merge({
        sceneHistory: history.historyPush(state.sceneHistory, state.scene)
      });
      return Line.endDrawingLine(state, action.x, action.y).updatedState;
    case BEGIN_DRAGGING_LINE:
      state = state.merge({
        sceneHistory: history.historyPush(state.sceneHistory, state.scene)
      });
      return Line.beginDraggingLine(state, action.layerID, action.lineID, action.x, action.y).updatedState;
    case UPDATE_DRAGGING_LINE:
      return Line.updateDraggingLine(state, action.x, action.y, action.relatedLines).updatedState;
    case END_DRAGGING_LINE:
      state = state.merge({
        sceneHistory: history.historyPush(state.sceneHistory, state.scene)
      });
      return Line.endDraggingLine(state, action.x, action.y, action.relatedLines).updatedState;
    case SELECT_LINE:
      return Line.select(state, action.layerID, action.lineID).updatedState;
    case SET_RELATED_LINE:
      return Line.setRelatedLine(state, action.layerID, action.lineID, action.intersection).updatedState;
    default:
      return state;
  }
}