jwt

package com.example.jwt.controller;

import com.example.jwt.dto.LoginDto;
import com.example.jwt.dto.TokenDto;
import com.example.jwt.jwt.JwtFilter;
import com.example.jwt.jwt.TokenProvider;
import jakarta.validation.Valid;
import lombok.RequiredArgsConstructor;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping("/api")
@RequiredArgsConstructor
@CrossOrigin(origins = "http://localhost:3000") // Vue.js 개발 서버 포트
public class AuthController {
    
    private final TokenProvider tokenProvider;
    private final AuthenticationManagerBuilder authenticationManagerBuilder;
    
    @PostMapping("/authenticate")
    public ResponseEntity<TokenDto> authorize(@RequestBody @Valid LoginDto loginDto) {
        UsernamePasswordAuthenticationToken authenticationToken =
                new UsernamePasswordAuthenticationToken(loginDto.getEmail(), loginDto.getPassword());
        
        Authentication authentication = authenticationManagerBuilder.getObject().authenticate(authenticationToken);
        SecurityContextHolder.getContext().setAuthentication(authentication);
        
        String jwt = tokenProvider.createToken(authentication);
        
        HttpHeaders httpHeaders = new HttpHeaders();
        httpHeaders.add(JwtFilter.AUTHORIZATION_HEADER, "Bearer " + jwt);
        
        return new ResponseEntity<>(new TokenDto(jwt), httpHeaders, HttpStatus.OK);
    }
    
    @GetMapping("/user")
    public ResponseEntity<String> getMyUserInfo() {
        return ResponseEntity.ok("인증된 사용자입니다!");
    }
}