import { configureStore } from '@reduxjs/toolkit';
import { PositionSlice, fetchPositions, createPosition, deletePosition } from '../PositionSlice';

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', () => ({
  default: { handleServerError: jest.fn((e) => e?.message || 'Error') },
}));

const createStore = () => configureStore({ reducer: { positions: PositionSlice.reducer } });

describe('PositionSlice', () => {
  it('has correct initial state', () => {
    const store = createStore();
    const state = store.getState().positions;
    expect(state.positions).toEqual([]);
    expect(state.loading).toBe(false);
  });

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

    it('populates positions on fulfilled', () => {
      const store = createStore();
      const positions = [{ position_id: 'p1', name: 'Manager' }];
      store.dispatch({ type: fetchPositions.fulfilled.type, payload: positions });
      expect(store.getState().positions.positions).toEqual(positions);
      expect(store.getState().positions.loading).toBe(false);
    });

    it('sets loading false on rejected', () => {
      const store = createStore();
      store.dispatch({ type: fetchPositions.pending.type });
      store.dispatch({ type: fetchPositions.rejected.type });
      expect(store.getState().positions.loading).toBe(false);
    });
  });

  describe('createPosition', () => {
    it('prepends position on fulfilled', () => {
      const store = createStore();
      store.dispatch({ type: fetchPositions.fulfilled.type, payload: [{ position_id: 'p1' }] });
      store.dispatch({ type: createPosition.fulfilled.type, payload: { position_id: 'p2', name: 'New' } });
      expect(store.getState().positions.positions[0].position_id).toBe('p2');
    });
  });

  describe('deletePosition', () => {
    it('removes position on fulfilled', () => {
      const store = createStore();
      store.dispatch({ type: fetchPositions.fulfilled.type, payload: [{ position_id: 'p1' }, { position_id: 'p2' }] });
      store.dispatch({ type: deletePosition.fulfilled.type, payload: { position_id: 'p1', message: 'Deleted' } });
      expect(store.getState().positions.positions).toHaveLength(1);
    });
  });
});