package com.zhangmeng.oauth.config;

import com.zhangmeng.oauth.dto.UserJwt;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.oauth2.provider.token.DefaultUserAuthenticationConverter;
import org.springframework.stereotype.Component;

import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * 自定义用户授权转换
 */
@Component
public class CustomUserAuthenticationConverter extends DefaultUserAuthenticationConverter {

    @Qualifier("userDetailsServiceImpl")
    @Autowired
    UserDetailsService userDetailsService;

    @Override
    public Map<String, ?> convertUserAuthentication(Authentication authentication) {
        HashMap<String,Object> response = new LinkedHashMap<>();
        String name = authentication.getName();
        response.put("username", name);

        Object principal = authentication.getPrincipal();
        UserJwt userJwt = null;
        if (principal instanceof UserJwt) {
            userJwt = (UserJwt) principal;
        } else {
            //refresh_token默认不去调用userdetailService获取用户信息，这里我们手动去调用，得到 UserJwt
            UserDetails userDetails = userDetailsService.loadUserByUsername(name);
            userJwt = (UserJwt) userDetails;
        }
        response.put("name", userJwt.getName());
        response.put("id", userJwt.getId());
        if (authentication.getAuthorities() != null && !authentication.getAuthorities().isEmpty()) {
            response.put("authorities", AuthorityUtils.authorityListToSet(authentication.getAuthorities()));
        }
        return response;
    }
}
