import { _decorator, Component, Label, Node } from "cc";
import LanguageUtils, { LanguageType } from "./LanguageUtils";

const { ccclass, property, requireComponent } = _decorator;

@ccclass("LanguageLabel")
@requireComponent(Label)
export class LanguageLabel extends Component {
  @property({
    displayName: "Language Key",
    tooltip: "多语言配置表中的key值",
  })
  private languageKey: string = "";

  @property({
    displayName: "Default Text",
    tooltip: "如果找不到对应的翻译时显示的默认文本",
  })
  private defaultText: string = "";

  @property({
    displayName: "Auto Update",
    tooltip: "是否自动监听语言变化并更新",
  })
  private autoUpdate: boolean = true;

  private label: Label = null;
  private params: { [key: string]: any } = null;

  onLoad() {
    this.label = this.getComponent(Label);
    if (!this.label) {
      console.error("LanguageLabel: Label component not found!");
      return;
    }

    this.updateText();

    if (this.autoUpdate) {
      LanguageUtils.onLanguageChanged(this.onLanguageChanged, this);
    }
  }

  onDestroy() {
    if (this.autoUpdate) {
      LanguageUtils.offLanguageChanged(this.onLanguageChanged, this);
    }
  }

  onEnable() {
    this.updateText();
  }

  private onLanguageChanged(language: LanguageType) {
    this.updateText();
  }

  private updateText() {
    if (!this.label || !this.languageKey) {
      return;
    }

    let text: string;
    if (this.params && Object.keys(this.params).length > 0) {
      text = LanguageUtils.getTextWithParams(
        this.languageKey,
        this.params,
        this.defaultText
      );
    } else {
      text = LanguageUtils.getText(this.languageKey, this.defaultText);
    }

    this.label.string = text;
  }

  /**
   * 设置语言key
   */
  public setLanguageKey(key: string) {
    this.languageKey = key;
    this.updateText();
  }

  /**
   * 设置文本参数（用于替换文本中的占位符）
   * @param params 参数对象，如 {name: "玩家", score: 100}
   */
  public setParams(params: { [key: string]: any }) {
    this.params = params;
    this.updateText();
  }

  /**
   * 添加或更新单个参数
   */
  public setParam(key: string, value: any) {
    if (!this.params) {
      this.params = {};
    }
    this.params[key] = value;
    this.updateText();
  }

  /**
   * 清除所有参数
   */
  public clearParams() {
    this.params = null;
    this.updateText();
  }

  /**
   * 手动刷新文本
   */
  public refresh() {
    this.updateText();
  }

  /**
   * 获取当前的语言key
   */
  public getLanguageKey(): string {
    return this.languageKey;
  }

  /**
   * 设置默认文本
   */
  public setDefaultText(text: string) {
    this.defaultText = text;
    this.updateText();
  }
}