
package com.kxs.system.biz.controller;

import cn.hutool.core.date.DatePattern;
import cn.hutool.core.date.TemporalAccessorUtil;
import cn.hutool.core.map.MapUtil;
import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;

import com.kxs.common.core.constant.CacheConstants;
import com.kxs.common.core.constant.CommonConstants;
import com.kxs.common.core.constant.SecurityConstants;
import com.kxs.common.core.constant.enums.ErrorTypeEnum;
import com.kxs.common.core.util.R;
import com.kxs.common.core.util.SpringContextHolder;
import com.kxs.common.log.annotation.SysLog;
import com.kxs.common.security.annotation.Inner;
import com.kxs.common.security.support.handler.SkyAuthenticationFailureEventHandler;
import com.kxs.common.security.util.OAuth2EndpointUtils;
import com.kxs.common.security.util.OAuth2ErrorCodesExpand;
import com.kxs.common.security.util.OAuthClientException;
import com.kxs.system.api.model.SysOauthClientDetails;
import com.kxs.system.api.vo.TokenVo;
import com.kxs.system.biz.service.SysOauthClientDetailsService;
import io.swagger.v3.oas.annotations.security.SecurityRequirement;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.RequiredArgsConstructor;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cache.CacheManager;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServletServerHttpResponse;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.security.authentication.event.LogoutSuccessEvent;
import org.springframework.security.oauth2.core.OAuth2AccessToken;
import org.springframework.security.oauth2.core.endpoint.OAuth2AccessTokenResponse;
import org.springframework.security.oauth2.core.endpoint.OAuth2ParameterNames;
import org.springframework.security.oauth2.core.http.converter.OAuth2AccessTokenResponseHttpMessageConverter;
import org.springframework.security.oauth2.server.authorization.OAuth2Authorization;
import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationService;
import org.springframework.security.oauth2.server.authorization.OAuth2TokenType;
import org.springframework.security.oauth2.server.resource.InvalidBearerTokenException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.security.web.authentication.preauth.PreAuthenticatedAuthenticationToken;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.ModelAndView;

import java.security.Principal;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * @author LXQ
 * @date 2021/2/1 删除token端点
 */
@Slf4j
@RestController
@RequiredArgsConstructor
@RequestMapping("/token")
@Tag(description = "token", name = "令牌管理模块")
@SecurityRequirement(name = HttpHeaders.AUTHORIZATION)
public class TokenController {

	private final HttpMessageConverter<OAuth2AccessTokenResponse> accessTokenHttpResponseConverter = new OAuth2AccessTokenResponseHttpMessageConverter();

	private final AuthenticationFailureHandler authenticationFailureHandler = new SkyAuthenticationFailureEventHandler();

	private final OAuth2AuthorizationService authorizationService;

	private final SysOauthClientDetailsService clientDetailsService;

	private final RedisTemplate<String, Object> redisTemplate;

	private final CacheManager cacheManager;

	/**
	 * 认证页面
	 * @param modelAndView
	 * @param error 表单登录失败处理回调的错误信息
	 * @return ModelAndView
	 */
	@GetMapping("/login")
	public ModelAndView require(ModelAndView modelAndView, @RequestParam(required = false) String error) {
		modelAndView.setViewName("ftl/login");
		modelAndView.addObject("error", error);
		return modelAndView;
	}

	@GetMapping("/confirm_access")
	public ModelAndView confirm(Principal principal, ModelAndView modelAndView,
			@RequestParam(OAuth2ParameterNames.CLIENT_ID) String clientId,
			@RequestParam(OAuth2ParameterNames.SCOPE) String scope,
			@RequestParam(OAuth2ParameterNames.STATE) String state) {

		SysOauthClientDetails clientDetails = clientDetailsService.getClientDetailsById(clientId);
		if (clientDetails == null) {
			throw new OAuthClientException("clientId 不合法");
		}

		Set<String> authorizedScopes = StringUtils.commaDelimitedListToSet(clientDetails.getScope());
		modelAndView.addObject("clientId", clientId);
		modelAndView.addObject("state", state);
		modelAndView.addObject("scopeList", authorizedScopes);
		modelAndView.addObject("principalName", principal.getName());
		modelAndView.setViewName("ftl/confirm");
		return modelAndView;
	}

	/**
	 * 退出并删除token
	 * @param authHeader Authorization
	 */
	@DeleteMapping("/logout")
	public R<Boolean> logout(@RequestHeader(value = HttpHeaders.AUTHORIZATION, required = false) String authHeader) {
		if (StrUtil.isBlank(authHeader)) {
			return R.ok();
		}

		String tokenValue = authHeader.replace(OAuth2AccessToken.TokenType.BEARER.getValue(), StrUtil.EMPTY).trim();
		return removeToken(tokenValue);
	}

	/**
	 * 校验token
	 * @param token 令牌
	 */
	@SneakyThrows
	@GetMapping("/checkToken")
	public R<Object> checkToken(String token, HttpServletResponse response, HttpServletRequest request) {
		ServletServerHttpResponse httpResponse = new ServletServerHttpResponse(response);

		if (StrUtil.isBlank(token)) {

			return R.failed(ErrorTypeEnum.TOKEN_EMPTY);
		}
		OAuth2Authorization authorization = authorizationService.findByToken(token, OAuth2TokenType.ACCESS_TOKEN);

		// 如果令牌不存在 返回401
		if (authorization == null || authorization.getAccessToken() == null) {

			return R.failed(ErrorTypeEnum.TOKEN_EMPTY);
		}
		Map<String, Object> claims = authorization.getAccessToken().getClaims();
		OAuth2AccessTokenResponse sendAccessTokenResponse = OAuth2EndpointUtils.sendAccessTokenResponse(authorization,
				claims);

		return R.ok(sendAccessTokenResponse.getAccessToken());

	}

	/**
	 * 令牌管理调用
	 * @param token token
	 */
	@DeleteMapping("/{token}")
	@SysLog("删除用户token")
	@PreAuthorize("@pms.hasPermission('sys_token_del')")
	public R<Boolean> removeToken(@PathVariable("token") String token) {
		OAuth2Authorization authorization = authorizationService.findByToken(token, OAuth2TokenType.ACCESS_TOKEN);
		if (authorization == null) {
			return R.ok();
		}

		OAuth2Authorization.Token<OAuth2AccessToken> accessToken = authorization.getAccessToken();
		if (accessToken == null || StrUtil.isBlank(accessToken.getToken().getTokenValue())) {
			return R.ok();
		}
		// 清空用户信息（立即删除）
		cacheManager.getCache(CacheConstants.USER_DETAILS).evictIfPresent(authorization.getPrincipalName());
		// 清空access token
		authorizationService.remove(authorization);
		// 处理自定义退出事件，保存相关日志
		SpringContextHolder.publishEvent(new LogoutSuccessEvent(new PreAuthenticatedAuthenticationToken(
				authorization.getPrincipalName(), authorization.getRegisteredClientId())));
		return R.ok();
	}

	/**
	 * 查询token
	 * @param params 分页参数
	 * @return
	 */
	@PostMapping("/page")
	public R<Page> tokenList(@RequestBody Map<String, Object> params) {
		// 根据分页参数获取对应数据
		String key = String.format("%s::*", CacheConstants.PROJECT_OAUTH_ACCESS);
		int current = MapUtil.getInt(params, CommonConstants.CURRENT);
		int size = MapUtil.getInt(params, CommonConstants.SIZE);
		Set<String> keys = redisTemplate.keys(key);
		List<String> pages = keys.stream().skip((long) (current - 1) * size).limit(size).collect(Collectors.toList());
		Page result = new Page(current, size);

		List<TokenVo> tokenVoList = redisTemplate.opsForValue().multiGet(pages).stream().map(obj -> {
			OAuth2Authorization authorization = (OAuth2Authorization) obj;
			TokenVo tokenVo = new TokenVo();
			tokenVo.setClientId(authorization.getRegisteredClientId());
			tokenVo.setId(authorization.getId());
			tokenVo.setUsername(authorization.getPrincipalName());
			OAuth2Authorization.Token<OAuth2AccessToken> accessToken = authorization.getAccessToken();
			tokenVo.setAccessToken(accessToken.getToken().getTokenValue());

			String expiresAt = TemporalAccessorUtil.format(accessToken.getToken().getExpiresAt(),
					DatePattern.NORM_DATETIME_PATTERN);
			tokenVo.setExpiresAt(expiresAt);

			String issuedAt = TemporalAccessorUtil.format(accessToken.getToken().getIssuedAt(),
					DatePattern.NORM_DATETIME_PATTERN);
			tokenVo.setIssuedAt(issuedAt);
			return tokenVo;
		}).collect(Collectors.toList());
		result.setRecords(tokenVoList);
		result.setTotal(keys.size());
		return R.ok(result);
	}

}
