import { configureStore } from '@reduxjs/toolkit';
import AttemptsSlice, { clearCurrentAttempt } from '../AttemptsSlice';

jest.mock('@/services/api/api', () => ({ apiGet: jest.fn(), apiPost: jest.fn(), apiPut: 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: { att: AttemptsSlice.reducer } });

describe('AttemptsSlice', () => {
  it('has correct initial state', () => {
    const store = createStore();
    const state = store.getState().att;
    expect(state.currentAttempt).toBeNull();
    expect(state.attemptResult).toBeNull();
    expect(state.myAssignments).toEqual([]);
    expect(state.loading).toBe(false);
    expect(state.savingProgress).toBe(false);
    expect(state.error).toBeNull();
  });

  it('sets currentAttempt on start fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: 'assessmentAttempts/start/fulfilled', payload: { attempt_id: '1', questions: [] } });
    expect(store.getState().att.currentAttempt).toEqual({ attempt_id: '1', questions: [] });
    expect(store.getState().att.attemptResult).toBeNull();
  });

  it('sets savingProgress on saveProgress pending', () => {
    const store = createStore();
    store.dispatch({ type: 'assessmentAttempts/saveProgress/pending' });
    expect(store.getState().att.savingProgress).toBe(true);
  });

  it('clears savingProgress on saveProgress fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: 'assessmentAttempts/saveProgress/pending' });
    store.dispatch({ type: 'assessmentAttempts/saveProgress/fulfilled' });
    expect(store.getState().att.savingProgress).toBe(false);
  });

  it('sets attemptResult and clears currentAttempt on submit fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: 'assessmentAttempts/start/fulfilled', payload: { attempt_id: '1' } });
    store.dispatch({ type: 'assessmentAttempts/submit/fulfilled', payload: { id: '1', score: 80 } });
    expect(store.getState().att.attemptResult).toEqual({ id: '1', score: 80 });
    expect(store.getState().att.currentAttempt).toBeNull();
  });

  it('sets attemptResult on fetchOne fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: 'assessmentAttempts/fetchOne/fulfilled', payload: { id: '1', score: 90 } });
    expect(store.getState().att.attemptResult).toEqual({ id: '1', score: 90 });
  });

  it('populates myAssignments on fetchMyAssignments fulfilled', () => {
    const store = createStore();
    store.dispatch({ type: 'assessmentAttempts/fetchMyAssignments/fulfilled', payload: [{ id: 'a1' }] });
    expect(store.getState().att.myAssignments).toEqual([{ id: 'a1' }]);
  });

  it('clears currentAttempt and attemptResult via clearCurrentAttempt', () => {
    const store = createStore();
    store.dispatch({ type: 'assessmentAttempts/start/fulfilled', payload: { attempt_id: '1' } });
    store.dispatch(clearCurrentAttempt());
    expect(store.getState().att.currentAttempt).toBeNull();
    expect(store.getState().att.attemptResult).toBeNull();
  });
});