HashtagsXRep/hashtagsxrep

package cat.xarxarepublicana.hashtagsxrep.infrastructure.security;

import cat.xarxarepublicana.hashtagsxrep.domain.user.Role;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.security.core.GrantedAuthority;

public class AuthenticationRole implements GrantedAuthority {

  private static final String ROLE_PREFIX = "ROLE_";
  private static final AuthenticationRole ROLE_CREATOR = new AuthenticationRole(ROLE_PREFIX + Role.CREATOR);
  private static final AuthenticationRole ROLE_ADMIN = new AuthenticationRole(ROLE_PREFIX + Role.ADMIN);
  private static final AuthenticationRole ROLE_TAGGER = new AuthenticationRole(ROLE_PREFIX + Role.TAGGER);
  private static final AuthenticationRole ROLE_VIEWER = new AuthenticationRole(ROLE_PREFIX + Role.VIEWER);

  private static Map<String, List<AuthenticationRole>> ROLE_ACCESS_MAP =
      new HashMap<String, List<AuthenticationRole>>() {{
        put(Role.CREATOR, Arrays.asList(ROLE_CREATOR, ROLE_ADMIN, ROLE_TAGGER, ROLE_VIEWER));
        put(Role.ADMIN, Arrays.asList(ROLE_ADMIN, ROLE_TAGGER, ROLE_VIEWER));
        put(Role.TAGGER, Arrays.asList(ROLE_TAGGER, ROLE_VIEWER));
        put(Role.VIEWER, Arrays.asList(ROLE_VIEWER));
      }};

  private String authority;

  private AuthenticationRole(String authority) {
    this.authority = authority;
  }

  public static List<AuthenticationRole> fromRole(String role) {
    return ROLE_ACCESS_MAP.get(role);
  }

  @Override
  public String getAuthority() {
    return authority;
  }
}