package cn.seecoder.paas.web.security;

import cn.seecoder.paas.util.JwtTokenUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.stereotype.Service;

@Service
public class JwtAuthService {

    private final AuthenticationManager authenticationManager;

    private final UserDetailsService userDetailsService;

    private final JwtTokenUtil jwtTokenUtil;

    @Autowired
    public JwtAuthService(AuthenticationManager authenticationManager, @Qualifier("paasUserDetailService") UserDetailsService userDetailsService, JwtTokenUtil jwtTokenUtil) {
        this.authenticationManager = authenticationManager;
        this.userDetailsService = userDetailsService;
        this.jwtTokenUtil = jwtTokenUtil;
    }

    public String login(String username, String password) {
        UsernamePasswordAuthenticationToken upToken =
                new UsernamePasswordAuthenticationToken(username, password);
        Authentication authentication = authenticationManager.authenticate(upToken);
        SecurityContextHolder.getContext().setAuthentication(authentication);
        UserDetails userDetails = userDetailsService.loadUserByUsername(username);
        return jwtTokenUtil.generateToken(userDetails);
    }

}