import { configureStore } from '@reduxjs/toolkit';
import PeerReviewAssignmentSlice, { clearCurrentAssignment, clearAggregateScores, fetchPeerReviewAssignments, autoAssignPeerReviews, fetchAggregateScores, fetchPeerReviewAssignment } from '../PeerReviewAssignmentSlice';

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: { pra: PeerReviewAssignmentSlice.reducer } });

describe('PeerReviewAssignmentSlice', () => {
  it('has correct initial state', () => {
    const store = createStore();
    const state = store.getState().pra;
    expect(state.assignments).toEqual([]);
    expect(state.currentAssignment).toBeNull();
    expect(state.aggregateScores).toBeNull();
    expect(state.anonymizedFeedback).toEqual([]);
    expect(state.loading).toBe(false);
    expect(state.error).toBeNull();
  });

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

  it('prepends auto-assigned on autoAssignPeerReviews.fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: autoAssignPeerReviews.fulfilled.type, payload: [{ id: '1' }, { id: '2' }] });
    expect(store.getState().pra.assignments).toHaveLength(2);
  });

  it('sets aggregateScores on fetchAggregateScores.fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: fetchAggregateScores.fulfilled.type, payload: { avg: 4.5 } });
    expect(store.getState().pra.aggregateScores).toEqual({ avg: 4.5 });
  });

  it('clears via clearCurrentAssignment', () => {
    const store = createStore();
    store.dispatch({ type: fetchPeerReviewAssignment.fulfilled.type, payload: { id: '1' } });
    store.dispatch(clearCurrentAssignment());
    expect(store.getState().pra.currentAssignment).toBeNull();
  });

  it('clears via clearAggregateScores', () => {
    const store = createStore();
    store.dispatch({ type: fetchAggregateScores.fulfilled.type, payload: { avg: 4.5 } });
    store.dispatch(clearAggregateScores());
    expect(store.getState().pra.aggregateScores).toBeNull();
    expect(store.getState().pra.anonymizedFeedback).toEqual([]);
  });
});