package com.tcm.training.admin.app.auth.service;

import com.baomidou.mybatisplus.core.MybatisConfiguration;
import com.baomidou.mybatisplus.core.metadata.TableInfoHelper;
import com.tcm.training.admin.app.auth.dto.AppPasswordLoginRequest;
import com.tcm.training.admin.app.auth.dto.AppPasswordResetRequest;
import com.tcm.training.admin.app.auth.dto.AppPasswordResetVerifyRequest;
import com.tcm.training.admin.app.auth.dto.AppAppleLoginRequest;
import com.tcm.training.admin.app.auth.dto.AppSmsCodeSendRequest;
import com.tcm.training.admin.app.auth.dto.AppWechatLoginRequest;
import com.tcm.training.admin.app.auth.vo.AppLoginResponse;
import com.tcm.training.admin.app.auth.vo.AppPasswordResetVerifyResponse;
import com.tcm.training.admin.app.auth.vo.AppSmsCodeSendResponse;
import com.tcm.training.admin.app.share.service.AppShareService;
import com.tcm.training.admin.member.entity.AppUser;
import com.tcm.training.admin.member.mapper.UserMapper;
import cn.dev33.satoken.stp.SaTokenInfo;
import org.apache.ibatis.builder.MapperBuilderAssistant;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Captor;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

import java.util.concurrent.TimeUnit;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyLong;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

/**
 * APP 认证服务测试。
 */
@ExtendWith(MockitoExtension.class)
class AppAuthServiceTest {

    @BeforeAll
    static void initLambdaCache() {
        MapperBuilderAssistant assistant = new MapperBuilderAssistant(new MybatisConfiguration(), "");
        TableInfoHelper.initTableInfo(assistant, AppUser.class);
    }

    @Mock
    private UserMapper userMapper;

    @Mock
    private AppSmsCodeService appSmsCodeService;

    @Mock
    private BCryptPasswordEncoder passwordEncoder;

    @Mock
    private AppAuthSessionService appAuthSessionService;

    @Mock
    private AppWechatAuthClient appWechatAuthClient;

    @Mock
    private AppAppleAuthClient appAppleAuthClient;

    @Mock
    private AppShareService appShareService;

    @Mock
    private StringRedisTemplate stringRedisTemplate;

    @Mock
    private ValueOperations<String, String> valueOperations;

    private AppAuthService appAuthService;

    @Captor
    private ArgumentCaptor<AppUser> appUserCaptor;

    /**
     * 每个用例前重新构造被测认证服务。
     */
    @BeforeEach
    void setUp() {
        appAuthService = new AppAuthService(
                userMapper,
                appSmsCodeService,
                passwordEncoder,
                appAuthSessionService,
                appWechatAuthClient,
                appAppleAuthClient,
                appShareService,
                stringRedisTemplate
        );
    }

    /**
     * 密码登录成功时应返回统一登录响应并建立 APP 登录态。
     */
    @Test
    void passwordLoginShouldReturnTokenWhenPasswordMatches() {
        AppPasswordLoginRequest request = new AppPasswordLoginRequest();
        request.setPhone("13800138000");
        request.setPassword("abc123!!");

        AppUser user = buildEnabledUser("13800138000", "ENCODED");
        SaTokenInfo tokenInfo = new SaTokenInfo();
        tokenInfo.setTokenValue("token-value");
        tokenInfo.setTokenTimeout(7200L);

        when(userMapper.selectOne(any())).thenReturn(user);
        when(passwordEncoder.matches("abc123!!", "ENCODED")).thenReturn(true);
        when(appAuthSessionService.getTokenInfo()).thenReturn(tokenInfo);

        AppLoginResponse response = appAuthService.passwordLogin(request);

        verify(appAuthSessionService).login(1L);
        assertEquals("token-value", response.getToken());
        assertEquals("Bearer", response.getTokenType());
        assertEquals(7200L, response.getExpiresIn());
        assertEquals(Long.valueOf(1L), response.getUser().getId());
        assertEquals("13800138000", response.getUser().getPhone());
    }

    /**
     * 密码错误时应返回统一错误文案。
     */
    @Test
    void passwordLoginShouldFailWhenPasswordMismatch() {
        AppPasswordLoginRequest request = new AppPasswordLoginRequest();
        request.setPhone("13800138000");
        request.setPassword("bad-password");

        AppUser user = buildEnabledUser("13800138000", "ENCODED");
        when(userMapper.selectOne(any())).thenReturn(user);
        when(passwordEncoder.matches("bad-password", "ENCODED")).thenReturn(false);

        IllegalArgumentException exception = assertThrows(IllegalArgumentException.class,
                () -> appAuthService.passwordLogin(request));

        assertEquals("账号或密码错误", exception.getMessage());
    }

    /**
     * 忘记密码发码仅允许已启用用户发送。
     */
    @Test
    void sendPasswordResetCodeShouldReturnExpireSeconds() {
        AppSmsCodeSendRequest request = new AppSmsCodeSendRequest();
        request.setPhone("13800138001");

        when(userMapper.selectOne(any())).thenReturn(buildEnabledUser("13800138001", "ENCODED"));
        when(appSmsCodeService.createPasswordResetCode("13800138001")).thenReturn(new AppSmsCodeSendResponse(300));

        AppSmsCodeSendResponse response = appAuthService.sendPasswordResetCode(request);

        assertEquals(300, response.getExpireInSeconds());
    }

    /**
     * 忘记密码验证码校验成功后应签发一次性重置凭证并写入缓存。
     */
    @Test
    void verifyPasswordResetCodeShouldCacheTicket() {
        AppPasswordResetVerifyRequest request = new AppPasswordResetVerifyRequest();
        request.setPhone("13800138002");
        request.setCode("666666");

        when(userMapper.selectOne(any())).thenReturn(buildEnabledUser("13800138002", "ENCODED"));
        when(stringRedisTemplate.opsForValue()).thenReturn(valueOperations);
        doNothing().when(appSmsCodeService).validatePasswordResetCode("13800138002", "666666");

        AppPasswordResetVerifyResponse response = appAuthService.verifyPasswordResetCode(request);

        assertNotNull(response.getResetTicket());
        verify(valueOperations).set(anyString(), anyString(), anyLong(), any(TimeUnit.class));
    }

    /**
     * 使用有效重置凭证时应更新数据库中的密码并销毁凭证。
     */
    @Test
    void resetPasswordShouldUpdatePasswordAndDeleteTicket() {
        AppPasswordResetRequest request = new AppPasswordResetRequest();
        request.setResetTicket("ticket-1");
        request.setPassword("abc123!!");
        request.setConfirmPassword("abc123!!");

        AppUser user = buildEnabledUser("13800138003", "OLD");

        when(stringRedisTemplate.opsForValue()).thenReturn(valueOperations);
        when(valueOperations.get(anyString())).thenReturn("13800138003");
        when(userMapper.selectOne(any())).thenReturn(user);
        when(passwordEncoder.encode("abc123!!")).thenReturn("NEW-ENCODED");

        appAuthService.resetPassword(request);

        verify(userMapper).updateById(appUserCaptor.capture());
        verify(stringRedisTemplate).delete(anyString());
        assertEquals("NEW-ENCODED", appUserCaptor.getValue().getPassword());
    }

    /**
     * 重置凭证失效时应拒绝更新密码。
     */
    @Test
    void resetPasswordShouldFailWhenTicketExpired() {
        AppPasswordResetRequest request = new AppPasswordResetRequest();
        request.setResetTicket("expired-ticket");
        request.setPassword("abc123!!");
        request.setConfirmPassword("abc123!!");

        when(stringRedisTemplate.opsForValue()).thenReturn(valueOperations);
        when(valueOperations.get(anyString())).thenReturn(null);

        IllegalArgumentException exception = assertThrows(IllegalArgumentException.class,
                () -> appAuthService.resetPassword(request));

        assertEquals("重置凭证已失效，请重新验证", exception.getMessage());
    }

    /**
     * 微信已绑定用户登录时应更新微信资料并返回统一登录响应。
     */
    @Test
    void wechatLoginShouldReuseExistingUser() {
        AppWechatLoginRequest request = new AppWechatLoginRequest();
        request.setAccessToken("access-token");
        request.setOpenid("openid-1");

        AppWechatUserProfile profile = new AppWechatUserProfile();
        profile.setOpenid("openid-1");
        profile.setNickname("微信昵称");
        profile.setAvatar("https://cdn.example/avatar.png");
        profile.setSex(2);

        AppUser user = buildEnabledUser("13800138000", "ENCODED");
        user.setWechatOpenid("openid-1");
        user.setNickname(null);
        user.setAvatar(null);

        SaTokenInfo tokenInfo = new SaTokenInfo();
        tokenInfo.setTokenValue("wechat-token");
        tokenInfo.setTokenTimeout(7200L);

        when(appWechatAuthClient.resolveUserProfile(request)).thenReturn(profile);
        when(userMapper.selectOne(any())).thenReturn(user);
        when(appAuthSessionService.getTokenInfo()).thenReturn(tokenInfo);

        AppLoginResponse response = appAuthService.wechatLogin(request);

        verify(userMapper).updateById(appUserCaptor.capture());
        verify(userMapper, never()).insert(any());
        assertEquals("openid-1", appUserCaptor.getValue().getWechatOpenid());
        assertEquals("微信昵称", appUserCaptor.getValue().getNickname());
        assertEquals("https://cdn.example/avatar.png", appUserCaptor.getValue().getAvatar());
        assertEquals(Integer.valueOf(0), appUserCaptor.getValue().getGender());
        assertEquals("微信昵称", response.getUser().getNickname());
        assertEquals("https://cdn.example/avatar.png", response.getUser().getAvatar());
    }

    /**
     * 微信首次登录时应自动创建普通用户并返回统一登录响应。
     */
    @Test
    void wechatLoginShouldCreateUserWhenOpenidNotExists() {
        AppWechatLoginRequest request = new AppWechatLoginRequest();
        request.setAccessToken("access-token");
        request.setOpenid("openid-new");

        AppWechatUserProfile profile = new AppWechatUserProfile();
        profile.setOpenid("openid-new");
        profile.setNickname("新微信用户");
        profile.setAvatar("https://cdn.example/new-avatar.png");
        profile.setSex(1);

        SaTokenInfo tokenInfo = new SaTokenInfo();
        tokenInfo.setTokenValue("new-token");
        tokenInfo.setTokenTimeout(7200L);

        when(appWechatAuthClient.resolveUserProfile(request)).thenReturn(profile);
        when(userMapper.selectOne(any())).thenReturn(null);
        when(appAuthSessionService.getTokenInfo()).thenReturn(tokenInfo);

        AppLoginResponse response = appAuthService.wechatLogin(request);

        verify(userMapper).insert(appUserCaptor.capture());
        verify(userMapper, never()).updateById(any());
        assertNull(appUserCaptor.getValue().getPhone());
        assertEquals("openid-new", appUserCaptor.getValue().getWechatOpenid());
        assertEquals("新微信用户", appUserCaptor.getValue().getNickname());
        assertEquals("https://cdn.example/new-avatar.png", appUserCaptor.getValue().getAvatar());
        assertEquals(Integer.valueOf(1), appUserCaptor.getValue().getGender());
        assertEquals(Integer.valueOf(0), appUserCaptor.getValue().getType());
        assertEquals("new-token", response.getToken());
    }

    /**
     * 苹果已绑定用户登录时应更新苹果绑定信息并返回统一登录响应。
     */
    @Test
    void appleLoginShouldReuseExistingUser() {
        AppAppleLoginRequest request = new AppAppleLoginRequest();
        request.setIdentityToken("identity-token");
        request.setUserIdentifier("apple-user-1");

        AppAppleUserProfile profile = new AppAppleUserProfile();
        profile.setSubject("apple-subject-1");
        profile.setUserIdentifier("apple-user-1");

        AppUser user = buildEnabledUser("13800138009", "ENCODED");
        user.setAppleIdentitySubject("apple-subject-1");
        user.setAppleUserIdentifier("apple-user-legacy");
        user.setNickname("已存在用户");

        SaTokenInfo tokenInfo = new SaTokenInfo();
        tokenInfo.setTokenValue("apple-token");
        tokenInfo.setTokenTimeout(7200L);

        when(appAppleAuthClient.resolveUserProfile(request)).thenReturn(profile);
        when(userMapper.selectOne(any())).thenReturn(user);
        when(appAuthSessionService.getTokenInfo()).thenReturn(tokenInfo);

        AppLoginResponse response = appAuthService.appleLogin(request);

        verify(userMapper).updateById(appUserCaptor.capture());
        verify(userMapper, never()).insert(any());
        assertEquals("apple-subject-1", appUserCaptor.getValue().getAppleIdentitySubject());
        assertEquals("apple-user-1", appUserCaptor.getValue().getAppleUserIdentifier());
        assertEquals("已存在用户", response.getUser().getNickname());
        assertEquals("apple-token", response.getToken());
    }

    /**
     * 苹果首次登录时应自动创建普通用户并等待后续绑定手机号。
     */
    @Test
    void appleLoginShouldCreateUserWhenSubjectNotExists() {
        AppAppleLoginRequest request = new AppAppleLoginRequest();
        request.setIdentityToken("identity-token");
        request.setUserIdentifier("apple-user-new");

        AppAppleUserProfile profile = new AppAppleUserProfile();
        profile.setSubject("apple-subject-new");
        profile.setUserIdentifier("apple-user-new");

        SaTokenInfo tokenInfo = new SaTokenInfo();
        tokenInfo.setTokenValue("apple-new-token");
        tokenInfo.setTokenTimeout(7200L);

        when(appAppleAuthClient.resolveUserProfile(request)).thenReturn(profile);
        when(userMapper.selectOne(any())).thenReturn(null);
        when(appAuthSessionService.getTokenInfo()).thenReturn(tokenInfo);

        AppLoginResponse response = appAuthService.appleLogin(request);

        verify(userMapper).insert(appUserCaptor.capture());
        verify(userMapper, never()).updateById(any());
        assertNull(appUserCaptor.getValue().getPhone());
        assertEquals("apple-subject-new", appUserCaptor.getValue().getAppleIdentitySubject());
        assertEquals("apple-user-new", appUserCaptor.getValue().getAppleUserIdentifier());
        assertEquals("苹果用户", appUserCaptor.getValue().getNickname());
        assertEquals(Integer.valueOf(0), appUserCaptor.getValue().getType());
        assertEquals("apple-new-token", response.getToken());
    }

    /**
     * 苹果授权无效时应直接拒绝登录。
     */
    @Test
    void appleLoginShouldFailWhenIdentityTokenInvalid() {
        AppAppleLoginRequest request = new AppAppleLoginRequest();
        request.setIdentityToken("bad-token");
        request.setUserIdentifier("apple-user-bad");

        when(appAppleAuthClient.resolveUserProfile(request)).thenThrow(new IllegalArgumentException("苹果登录授权失败"));

        IllegalArgumentException exception = assertThrows(IllegalArgumentException.class,
                () -> appAuthService.appleLogin(request));

        assertEquals("苹果登录授权失败", exception.getMessage());
    }

    /**
     * 统一构造启用中的 APP 用户测试桩。
     */
    private AppUser buildEnabledUser(String phone, String password) {
        AppUser user = new AppUser();
        user.setId(1L);
        user.setPhone(phone);
        user.setPassword(password);
        user.setNickname("测试用户");
        user.setStatus(1);
        user.setType(0);
        return user;
    }
}