package io.spring.application;

import io.spring.application.data.ProfileData;
import io.spring.application.data.UserData;
import io.spring.core.user.User;
import io.spring.infrastructure.mybatis.readservice.UserReadService;
import io.spring.infrastructure.mybatis.readservice.UserRelationshipQueryService;
import java.util.Optional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class ProfileQueryService {
  private UserReadService userReadService;
  private UserRelationshipQueryService userRelationshipQueryService;

  @Autowired
  public ProfileQueryService(
      UserReadService userReadService, UserRelationshipQueryService userRelationshipQueryService) {
    this.userReadService = userReadService;
    this.userRelationshipQueryService = userRelationshipQueryService;
  }

  public Optional<ProfileData> findByUsername(String username, User currentUser) {
    UserData userData = userReadService.findByUsername(username);
    if (userData == null) {
      return Optional.empty();
    } else {
      ProfileData profileData =
          new ProfileData(
              userData.getId(),
              userData.getUsername(),
              userData.getBio(),
              userData.getImage(),
              currentUser != null
                  && userRelationshipQueryService.isUserFollowing(
                      currentUser.getId(), userData.getId()));
      return Optional.of(profileData);
    }
  }
}