genned.js

import type {
  MyShape,
  MyOtherShape,
} from 'MyTypes';
import type {
  ForeignFoo,
} from 'ForeignTypes';

const MyHandlers = require('MyHandlers');

export type Action = (
  'ACT_Action1' |
  'ACT_Action2'
);

const ActionEnum:
  = {[key: Action]: Action} {
  'ACT_Action1': ('ACT_Action1': 'ACT_Action1'), |
  'ACT_Action2': ('ACT_Action2': 'ACT_Action2'),
};

type Action1Obj = {
  type: 'ACT_Action1',
  param1_1: string,
  param1_2: MyType,
};
type Action2Obj = {
  type: 'ACT_Action2',
  param2_1: boolean,
  param2_2: Object,
};

type ActionObj = (
  Action1Obj |
  Action2Obj
);

function createAction1(
  param1_1: string,
  param1_2: MyType,
): Action1 {
  return {
    type: 'ACT_Action1',
    param1_1,
    param1_2,
  };
}
function createAction2(
  param2_1: boolean,
  param2_2: Object,
): Action2 {
  return {
    type: 'ACT_Action2',
    param2_1,
    param2_2,
  };
}

type State = {
  simpleFlag: string,
  valueField: number,
  manualField: MyOtherShape,
};

type INITIAL_STATE: State = {
  simpleFlag: '',
  valueField: 0,
  manualField: {},
};

function reducer(
  state: State = INITIAL_STATE,
  action: ActionObj,
): State {
  switch (action.type) {
    case 'ACT_Action1':
      return Object.assign(state, {
        simpleFlag: action.simpleFlag,
        valueField: 1234,
      });
    case 'ACT_Action2':
      return MyHandlers.Action2Handler(state, action);
    default:
      return state;
  }
}

export type PresmaCTAAction = Action;
export type PresmaCTAActionObj = ActionObj;
export type PresmaCTAState = State;

export type PresmaCTAAction1Obj = Action1Obj;
export type PresmaCTAAction2Obj = Action2Obj;

module.exports = {
  PresmaCTAReducer: reducer,
  PresmaCTAActionEnum: ActionEnum,
  creators: {
    createAction1,
    createAction2,
  }
};