ProxyAI/src/main/java/ee/carlrobert/codegpt/ide/toolwindow/ContentManagerService.java

package ee.carlrobert.codegpt.ide.toolwindow;

import static java.util.Objects.requireNonNull;

import com.intellij.openapi.project.Project;
import com.intellij.openapi.wm.ToolWindowManager;
import com.intellij.ui.content.Content;
import com.intellij.ui.content.ContentManager;
import java.util.Arrays;
import java.util.Optional;
import org.jetbrains.annotations.NotNull;

public class ContentManagerService {

  public void displayChatTab(@NotNull Project project) {
    var toolWindow = requireNonNull(ToolWindowManager.getInstance(project).getToolWindow("CodeGPT"));
    toolWindow.show();
    var contentManager = toolWindow.getContentManager();
    tryFindChatTabContent(contentManager).ifPresentOrElse(
        contentManager::setSelectedContent,
        () -> contentManager.setSelectedContent(requireNonNull(contentManager.getContent(0)))
    );
  }

  public Optional<Content> tryFindChatTabContent(ContentManager contentManager) {
    return Arrays.stream(contentManager.getContents())
        .filter(content -> "Chat".equals(content.getTabName()))
        .findFirst();
  }

  public boolean isChatTabSelected(ContentManager contentManager) {
    return tryFindChatTabContent(contentManager)
        .filter(contentManager::isSelected)
        .isPresent();
  }
}