import 'dart:convert';

import 'package:flutter/services.dart';
import 'package:flutter/widgets.dart';
import 'package:makemoney/utils/image_util.dart';
import 'package:package_info/package_info.dart';
import 'package:webview_flutter/platform_interface.dart';
import 'package:webview_flutter/webview_flutter.dart';

import '../api/http.dart' as http;
import '../ui/widget/nav.dart';
import '../utils/ui_utils.dart';
import '../utils/user_util.dart';

class JavascriptInterface {
  final BuildContext context;
  final WebViewController? _controller;

  JavascriptInterface(
      BuildContext this.context, WebViewController? this._controller);

  Set<JavascriptChannel> getInterfaces() {
    List<JavascriptChannel> list = [];
    list.add(JavascriptChannel(
        name: 'yestv',
        onMessageReceived: (JavascriptMessage message) {
          print("onMessageReceived");
          var data = jsonDecode(message.message);
          String method = data["method"];
          var params = data["params"];
          String? _callback = data["callback"];
          switch (method) {
            case "toast":
              toast(params);
              break;
            case "copyText":
              copyText(params);
              break;
            case "getUid":
              getUid(params, _callback);
              break;
            case "getAppName":
              getAppName(_callback);
              break;
            case "getRequestBaseParams":
              getRequestBaseParams(params, _callback);
              break;
            case "showRewardVideoAd":
              showRewardVideoAd(this.context, _callback);
              break;
            case "showLoading":
              showLoading();
              break;
            case "hideLoading":
              hideLoading();
              break;
            case "finishPage":
              finishPage();
              break;
            case "saveImg":
              String url = params["url"];
             ImageUtil.saveImg(url,context);
              break;
            case "shareImg":
              String url = params["url"];
              String type = params["type"];
              ImageUtil. shareImg(url, int.parse(type),context);
              break;
          }
        }));
    return list.toSet();
  }

  callback(String method, var params, {bool finish = true}) {
    _controller!.runJavascript("$method('$params')");
    if (finish) {
      _controller!.runJavascript("delete $method");
    }
  }

  //获取用户ID
  getUid(var params, String? callbackName) {
    if (callbackName != null) {
      UserUtil.getUid().then((value) {
        callback(callbackName, value != null ? value.toString() : "");
      });
    }
  }

  //获取用户ID
  getAppName(String? callbackName) {
    //
    PackageInfo.fromPlatform().then((PackageInfo packageInfo) {
      if (callbackName != null) {
        callback(callbackName, packageInfo.appName);
      }
    });
  }

  //toast
  toast(params) {
    if (params != null && params["msg"] != null) {
      ToastUtil.toast(params["msg"], context);
    }
  }

  copyText(params) {
    if (params != null && params["content"] != null) {
      Clipboard.setData(ClipboardData(text: params["content"]));
    }
  }

  //获取基本的网络请求参数
  getRequestBaseParams(var params, String? callbackName) {
    var ps = {};
    if (params != null) {
      ps.addAll(params);
    }
    http.HttpUtil.getBaseParams(params).then((value) {
      String result = jsonEncode(value);
      if (callbackName != null) {
        callback(callbackName, result);
      }
    });
  }

  //展示激励视频
  showRewardVideoAd(BuildContext context, String? callbackName) {
    // AdUtil.getAdInfo(context, AdPosition.vipReward).then((value) {
    //   AdUtil.loadReward(value, (status, msg) {
    //     switch (status) {
    //       case RewardAdStatus.verify:
    //         callback(callbackName!, 3, finish: false);
    //         break;
    //       case RewardAdStatus.ready:
    //         callback(callbackName!, 1, finish: false);
    //         break;
    //       case RewardAdStatus.close:
    //         callback(callbackName!, 10, finish: true);
    //         break;
    //       case RewardAdStatus.click:
    //         callback(callbackName!, 2, finish: false);
    //         break;
    //       case RewardAdStatus.fail:
    //         callback(callbackName!, 0, finish: true);
    //         break;
    //     }
    //   });
    // });
  }

  showLoading() {
    http.showLoading(context);
  }

  hideLoading() {
    popPage(context);
  }

  //结束页面
  finishPage() {
    popPage(context);
  }






}