import { configureStore } from '@reduxjs/toolkit';
import CompetencySlice, { fetchCompetencies, createCompetency, deleteCompetency } from '../CompetencySlice';

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: { comp: CompetencySlice.reducer } });

describe('CompetencySlice', () => {
  it('has correct initial state', () => {
    const store = createStore();
    expect(store.getState().comp.competencies).toEqual([]);
    expect(store.getState().comp.loading).toBe(false);
    expect(store.getState().comp.error).toBeNull();
  });

  it('populates on fetchCompetencies.fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: fetchCompetencies.fulfilled.type, payload: { data: [{ id: '1' }], meta: {}, links: {} } });
    expect(store.getState().comp.competencies).toEqual([{ id: '1' }]);
  });

  it('prepends on createCompetency.fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: createCompetency.fulfilled.type, payload: { id: '1' } });
    expect(store.getState().comp.competencies[0]).toEqual({ id: '1' });
  });

  it('removes on deleteCompetency.fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: fetchCompetencies.fulfilled.type, payload: { data: [{ id: '1' }], meta: {}, links: {} } });
    store.dispatch({ type: deleteCompetency.fulfilled.type, payload: { id: '1', message: 'Deleted' } });
    expect(store.getState().comp.competencies).toHaveLength(0);
  });
});