import { configureStore } from '@reduxjs/toolkit';
import TrainingSessionsSlice, { fetchTrainingSessions } from '../TrainingSessionsSlice';

jest.mock('@/services/api/api', () => ({ apiGet: jest.fn(), apiPost: jest.fn(), apiPut: jest.fn(), apiDelete: jest.fn() }));
jest.mock('antd', () => ({ message: { success: jest.fn(), error: jest.fn(), warning: jest.fn() } }));
jest.mock('@/utilities/Helpers', () => ({
  __esModule: true, default: { handleServerError: jest.fn((e) => e?.message || 'Error') } }));

const createStore = () => configureStore({ reducer: { ts: TrainingSessionsSlice.reducer } });

describe('TrainingSessionsSlice', () => {
  it('has correct initial state', () => {
    const store = createStore();
    const state = store.getState().ts;
    expect(state.sessions).toEqual([]);
    expect(state.selectedSession).toBeNull();
    expect(state.capacity).toBeNull();
    expect(state.availableSessions).toEqual([]);
    expect(state.meta).toBeNull();
    expect(state.loading).toBe(false);
    expect(state.error).toBeNull();
  });

  it('sets loading on fetchTrainingSessions.pending', () => {
    const store = createStore();
    store.dispatch({ type: fetchTrainingSessions.pending.type });
    expect(store.getState().ts.loading).toBe(true);
  });
});