import { configureStore } from '@reduxjs/toolkit';
import LeaveReportsSlice, { fetchOnLeave, fetchSummaryReport, clearIndividualReport } from '../LeaveReportsSlice';

jest.mock('@/services/api/api', () => ({ apiGet: jest.fn(), apiPost: jest.fn(), axiosInstance: { post: 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: { leaveReports: LeaveReportsSlice.reducer } });

describe('LeaveReportsSlice', () => {
  it('has correct initial state', () => {
    const state = createStore().getState().leaveReports;
    expect(state.onLeaveEmployees).toEqual([]);
    expect(state.onLeaveDate).toBeNull();
    expect(state.summaryReport).toBeNull();
    expect(state.individualReport).toBeNull();
    expect(state.leavePlan).toBeNull();
    expect(state.loading).toBe(false);
    expect(state.exportLoading).toBe(false);
    expect(state.error).toBeNull();
  });

  it('sets loading on fetchOnLeave.pending', () => {
    const store = createStore();
    store.dispatch(fetchOnLeave.pending('req', {}));
    expect(store.getState().leaveReports.loading).toBe(true);
  });

  it('populates on-leave data on fetchOnLeave.fulfilled', () => {
    const store = createStore();
    const payload = { date: '2026-03-04', data: [{ id: '1', name: 'John' }] } as any;
    store.dispatch(fetchOnLeave.fulfilled(payload, 'req', {}));
    expect(store.getState().leaveReports.onLeaveEmployees).toEqual(payload.data);
    expect(store.getState().leaveReports.onLeaveDate).toBe('2026-03-04');
    expect(store.getState().leaveReports.loading).toBe(false);
  });

  it('populates summary report on fetchSummaryReport.fulfilled', () => {
    const store = createStore();
    const data = { total: 100, by_type: [] } as any;
    store.dispatch(fetchSummaryReport.fulfilled(data, 'req', {}));
    expect(store.getState().leaveReports.summaryReport).toEqual(data);
  });

  it('clears individual report on clearIndividualReport', () => {
    const store = createStore();
    store.dispatch(clearIndividualReport());
    expect(store.getState().leaveReports.individualReport).toBeNull();
  });
});