import { reducer, dispatchActions } from "../src/reducer";
import { TuitioReactState, TuitioDispatchActions } from "../src/types";
import { initialState } from "../src/initialState";
import { Dispatch } from "react";

const userName = "tuitio.user";
const token = "abc123";
const validUntil = new Date();

describe("reducer", () => {
  it("should return the initial state by default", () => {
    const result = reducer(undefined, { type: "UNKNOWN_ACTION" });
    expect(result).toEqual(initialState);
  });

  it('should handle the "onLoginSuccess" action', () => {
    const result = reducer(initialState, { type: "onLoginSuccess", token, validUntil, userName });
    const expected = { ...initialState, auth: { token, validUntil, userName } };
    expect(result).toEqual(expected);
  });

  it('should handle the "onLogoutSuccess" action', () => {
    const state: TuitioReactState = { ...initialState, configuration: { tuitioUrl: "https://test.com/api" } };
    const result = reducer(state, { type: "onLogoutSuccess" });
    expect(result).toEqual({ ...initialState, configuration: state.configuration });
  });
});

describe("dispatchActions", () => {
  let dispatch: jest.Mocked<Dispatch<any>>;
  let actions: TuitioDispatchActions;

  beforeEach(() => {
    dispatch = jest.fn();
    actions = dispatchActions(dispatch);
  });

  it("should dispatch an action with type 'onLoginSuccess' and payload when 'onLoginSuccess' is called", () => {
    actions.onLoginSuccess(token, validUntil, userName);
    expect(dispatch).toHaveBeenCalledWith({ type: "onLoginSuccess", token, validUntil, userName });
  });

  it("should dispatch an action with type 'onLogoutSuccess' when 'onLogoutSuccess' is called", () => {
    actions.onLogoutSuccess();
    expect(dispatch).toHaveBeenCalledWith({ type: "onLogoutSuccess" });
  });
});