import 'package:flutter/material.dart';

import 'package:zhiying_comm/zhiying_comm.dart';

typedef Widget CreateWidget(Map<String, dynamic> model);

/* Widget生成工厂, 用于生成flutter端组件 */
class WidgetFactory {
  static Map<String, CreateWidget> widgetCreater = Map();

  /** 
   * @description: 注册组件 
   * @param {name} 组件名，唯一
   * @return: 
   */
  static void regist(String name, CreateWidget creater) {
    if (widgetCreater.containsKey(name)) {
      return;
    }

    widgetCreater[name] = creater;
  }

  /**
   * @description: 创建组件
   * @param {String} 组件注册的名字
   * @return: 
   */
  static Widget create(String name, Map<String, dynamic> model) {
    if (widgetCreater.containsKey(name)) {
      return widgetCreater[name](model);
    }
    const bool inProduction = const bool.fromEnvironment("dart.vm.product");
    if (!inProduction) {
      return Container();
    } else {
      return Container(
        width: double.infinity,
        height: 100,
        color: Colors.redAccent,
        child: Center(
          child: Text('当前组件尚未注册'),
        ),
      );
    }
  }

  /** 
   * @description: 是否注册组件
   * @param {bool} 
   * @return: 
   */
  static bool hasRegisted(String name) {
    return widgetCreater.containsKey(name);
  }
}