==== LU08.A05 Register/Login implementieren ====

Erstellen Sie unter ''src/main/java/ch/bzz/controller'' eine Controllerklasse ''ProjectApiController'', welche das bereits generierte interface ''ProjectApi'' implementiert.

<code java>
package ch.bzz.controller;


@RestController
public class ProjectApiController implements ProjectApi {

    private final ProjectRepository projectRepository;
    private final BCryptPasswordEncoder encoder = new BCryptPasswordEncoder();

    public ProjectApiController(ProjectRepository projectRepository) {
        this.projectRepository = projectRepository;
    }

    @Override
    public ResponseEntity<Void> createProject(LoginRequest loginRequest) {
        // TODO: implement
    }

    @Override
    public ResponseEntity<LoginProject200Response> loginProject(LoginRequest loginRequest) {
        // TODO: implement
    }
</code>

Versuchen Sie so weit wie möglich die beiden Methoden zu implementieren.

Für das Erstellen des JWT können Sie folgende Hilfsklasse verwenden.
<code java>
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import io.jsonwebtoken.security.Keys;
import jakarta.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.security.Key;
import java.util.Date;

@Component
public class JwtUtil {

    @Value("${jwt.secret}")
    private String secret;

    private Key key;

    @PostConstruct
    public void init() {
        key = Keys.hmacShaKeyFor(secret.getBytes());
    }

    public String generateToken(String projectName) {
        Date currentTime = new Date();
        Date expirationTime = new Date(currentTime.getTime() + 3_600_000);

        return Jwts.builder()
                .setSubject(projectName)
                .setIssuer("AccountingApp")
                .setIssuedAt(currentTime)
                .setExpiration(expirationTime)
                .signWith(key, SignatureAlgorithm.HS256)
                .compact();
    }

    public boolean validateToken(String token) {
        try {
            Jwts.parserBuilder().setSigningKey(key).build().parseClaimsJws(token);
            return true;
        } catch (Exception e) {
            return false;
        }
    }
}
</code>