package com.tourguide.modules.user.service;

import com.tourguide.modules.user.domain.ClientType;
import com.tourguide.modules.system.service.AdminPermissionService;
import com.tourguide.modules.user.domain.UserRole;
import com.tourguide.modules.user.dto.AuthResponse;
import com.tourguide.modules.user.dto.MiniUserResponse;
import com.tourguide.modules.user.entity.MiniUser;
import com.tourguide.modules.user.mapper.MiniUserMapper;
import com.tourguide.security.JwtTokenService;
import com.tourguide.security.TokenPayload;
import com.tourguide.security.TokenSessionService;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.ArgumentCaptor;
import org.springframework.security.crypto.password.PasswordEncoder;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyLong;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

class AuthServiceWechatLoginTest {
    private MiniUserMapper miniUserMapper;
    private PasswordEncoder passwordEncoder;
    private JwtTokenService jwtTokenService;
    private TokenSessionService tokenSessionService;
    private AuthService authService;

    @BeforeEach
    void setUp() {
        miniUserMapper = mock(MiniUserMapper.class);
        passwordEncoder = mock(PasswordEncoder.class);
        jwtTokenService = mock(JwtTokenService.class);
        tokenSessionService = mock(TokenSessionService.class);
        authService = new AuthService(
                mock(AdminUserService.class),
                mock(AdminPermissionService.class),
                mock(MiniUserService.class),
                mock(GuideUserService.class),
                mock(GuideAutoDisableService.class),
                miniUserMapper,
                passwordEncoder,
                jwtTokenService,
                tokenSessionService);
        when(passwordEncoder.encode(anyString())).thenReturn("encoded-password");
        when(jwtTokenService.createToken(anyLong(), anyString(), eq(UserRole.MINI_USER.name()), eq(ClientType.MINI)))
                .thenReturn("mini-token");
        when(jwtTokenService.getExpirationSeconds()).thenReturn(7200L);
        when(jwtTokenService.parse("mini-token"))
                .thenReturn(new TokenPayload(1L, "wx-user", UserRole.MINI_USER.name(), ClientType.MINI, "token-id"));
    }

    @Test
    void shouldCreateMiniUserOnFirstWechatLogin() {
        when(miniUserMapper.selectOne(any())).thenReturn(null);
        doAnswer(invocation -> {
            MiniUser user = invocation.getArgument(0);
            user.setId(1L);
            return 1;
        }).when(miniUserMapper).insert(any(MiniUser.class));

        AuthResponse<MiniUserResponse> response = authService.loginMiniWechat("openid-1", "13800138000");

        ArgumentCaptor<MiniUser> userCaptor = ArgumentCaptor.forClass(MiniUser.class);
        verify(miniUserMapper).insert(userCaptor.capture());
        MiniUser user = userCaptor.getValue();
        assertThat(user.getUsername()).startsWith("wx_").hasSize(32);
        assertThat(user.getPassword()).isEqualTo("encoded-password");
        assertThat(user.getOpenid()).isEqualTo("openid-1");
        assertThat(user.getMobile()).isEqualTo("13800138000");
        assertThat(response.getToken()).isEqualTo("mini-token");
        assertThat(response.getUser().getId()).isEqualTo(1L);
        verify(tokenSessionService).save(any(TokenPayload.class), eq(7200L));
    }

    @Test
    void shouldReuseExistingWechatUserAndRefreshMobile() {
        MiniUser user = new MiniUser();
        user.setId(2L);
        user.setUsername("wx_existing");
        user.setPassword("encoded-password");
        user.setNickname("微信用户");
        user.setMobile("13900139000");
        user.setOpenid("openid-2");
        user.setStatus(1);
        when(miniUserMapper.selectOne(any())).thenReturn(user);

        AuthResponse<MiniUserResponse> response = authService.loginMiniWechat("openid-2", "13800138000");

        verify(miniUserMapper, never()).insert(any(MiniUser.class));
        verify(miniUserMapper).updateById(user);
        assertThat(response.getUser().getId()).isEqualTo(2L);
        assertThat(response.getUser().getMobile()).isEqualTo("13800138000");
    }
}