import { ViewManager } from "db://assets/Scripts/Main/Manager/ViewManager";
import { UITransitionHelper } from "../utils/UITransitionHelper";
import GameRootUI from "../../Main/Common/GameRootUI";

/**
 * 导航管理器
 *
 * 负责管理游戏中的页面导航和路由，将导航逻辑从业务逻辑中分离出来
 *
 * @author AI Chat System
 * @version 1.0.0
 */
export class NavigationManager {
  private static _instance: NavigationManager;

  /**
   * 获取NavigationManager的单例实例
   *
   * @returns {NavigationManager} 导航管理器实例
   * @static
   */
  public static get Instance(): NavigationManager {
    if (!this._instance) {
      this._instance = new NavigationManager();
    }
    return this._instance;
  }

  private constructor() {}

  /**
   * 进入角色列表页面
   *
   * @param {number} themeId - 主题ID，用于筛选角色
   *
   * @example
   * ```typescript
   * NavigationManager.Instance.navigateToGirlList(1);
   * ```
   */
  public navigateToGirlList(themeId: number): void {
    if (themeId == null || themeId < 0) {
      console.warn("Invalid theme ID for girl list navigation:", themeId);
      return;
    }
    GameRootUI.I.hideDefaultView();

    console.log(`Navigating to girl list with theme ID: ${themeId}`);
    ViewManager.I.openBundlesView("GirlListPanel", themeId);
  }

  /**
   * 进入聊天页面
   *
   * @param {number} roleId - 角色ID
   *
   * @example
   * ```typescript
   * NavigationManager.Instance.navigateToChat(10001);
   * ```
   */
  public navigateToChat(roleId: number): void {
    if (roleId == null || roleId <= 0) {
      console.warn("Invalid role ID for chat navigation:", roleId);
      return;
    }

    console.log(`Navigating to chat with role ID: ${roleId}`);
    ViewManager.I.openBundlesView("ChatPanel", roleId);
  }

  /**
   * 带过渡动画进入聊天页面
   * 从GirlDetailPanel平滑过渡到ChatPanel
   *
   * @param {number} roleId - 角色ID
   * @param {any} currentPanel - 当前面板实例（GirlDetailPanel）
   *
   * @example
   * ```typescript
   * NavigationManager.Instance.navigateToChatWithTransition(10001, this);
   * ```
   */
  public navigateToChatWithTransition(
    roleId: number,
    currentPanel?: any
  ): void {
    if (roleId == null || roleId <= 0) {
      console.warn(
        "Invalid role ID for chat navigation with transition:",
        roleId
      );
      return;
    }

    console.log(`Navigating to chat with transition, role ID: ${roleId}`);

    // 打开ChatPanel，同时标记需要执行滑入动画
    ViewManager.I.openBundlesView(
      "ChatPanel",
      {
        roleId: roleId,
        withSlideTransition: true,
      },
      (chatNode) => {
        // ChatPanel打开后，如果有当前面板，执行滑出动画
        if (currentPanel && currentPanel.node && currentPanel.node.isValid) {
          UITransitionHelper.slideOutToLeft(currentPanel.node, 0.3, () => {
            // 滑出动画完成后关闭原面板
            if (
              currentPanel.onClose &&
              typeof currentPanel.onClose === "function"
            ) {
              currentPanel.onClose();
            }
          });
        }
      }
    );
  }

  /**
   * 进入角色详情页面
   *
   * @param {number} roleId - 角色ID
   *
   * @example
   * ```typescript
   * NavigationManager.Instance.navigateToGirlDetail(10001);
   * ```
   */
  public navigateToGirlDetail(roleId: number): void {
    if (roleId == null || roleId <= 0) {
      console.warn("Invalid role ID for detail navigation:", roleId);
      return;
    }

    console.log(`Navigating to girl detail with role ID: ${roleId}`);
    ViewManager.I.openBundlesView("GirlDetailPanel", roleId);
  }

  /**
   * 返回主界面
   *
   * @example
   * ```typescript
   * NavigationManager.Instance.navigateToMainMenu();
   * ```
   */
  public navigateToMainMenu(): void {
    console.log("Navigating to main menu");
    // TODO: 实现返回主界面的逻辑
    // ViewManager.I.openBundlesView("MainMenu");
  }

  /**
   * 检查是否可以导航到指定页面
   *
   * @param {string} pageName - 页面名称
   * @returns {boolean} 是否可以导航
   */
  public canNavigateTo(pageName: string): boolean {
    const allowedPages = ["GirlListPanel", "ChatPanel", "GirlDetailPanel"];
    return allowedPages.indexOf(pageName) >= 0;
  }

  /**
   * 获取当前页面的导航历史（预留功能）
   *
   * @returns {string[]} 导航历史数组
   */
  public getNavigationHistory(): string[] {
    // TODO: 实现导航历史记录功能
    console.log("Navigation history feature not implemented yet");
    return [];
  }

  /**
   * 返回上一页（预留功能）
   */
  public goBack(): void {
    // TODO: 实现返回上一页功能
    console.log("Go back feature not implemented yet");
  }
}