import 'dart:io';

import 'package:flutter/cupertino.dart';
import 'package:flutter/services.dart';

import 'common_ui.dart';

class ExpressAdController {
  VoidCallback? refresh;
}

//TODO 兼容android
class CSJEXpressAd extends StatefulWidget {
  final String pid;
  final double width;
  final double height;
  final ExpressAdController? controller;
  final VoidCallback? close;
  final VoidCallback? loadFail;

  CSJEXpressAd(this.pid, this.width, this.height,
      {this.controller, this.close, this.loadFail});

  @override
  State<StatefulWidget> createState() => _CSJEXpressAdState();
}

class _CSJEXpressAdState extends State<CSJEXpressAd> {
  MethodChannel? _expressAdChannel;

  @override
  void initState() {
    super.initState();
    if (widget.controller != null) {
      widget.controller!.refresh = () {
        if (_expressAdChannel != null) {
          _expressAdChannel!.invokeMethod("refresh");
        }
      };
    }
  }

  @override
  Widget build(BuildContext context) {
    return KeepAliveWrapper(
        child: Platform.isAndroid
            ? AndroidView(
                viewType: "ad-csj-express-view",
                layoutDirection: TextDirection.ltr,
                onPlatformViewCreated: onPlatformViewCreated,
                creationParams: <String, dynamic>{
                  "width": widget.width,
                  "height": widget.height,
                  "pid": widget.pid
                },
                creationParamsCodec: const StandardMessageCodec(),
              )
            : UiKitView(
                viewType: "ad-csj-express-view",
                layoutDirection: TextDirection.ltr,
                onPlatformViewCreated: onPlatformViewCreated,
                creationParams: <String, dynamic>{
                  "width": widget.width,
                  "height": widget.height,
                  "pid": widget.pid
                },
                creationParamsCodec: const StandardMessageCodec(),
              ));
  }

  Future<void> onPlatformViewCreated(id) async {
    _expressAdChannel = MethodChannel("ad-csj-express-view-$id");
    _expressAdChannel!.setMethodCallHandler((call) {
      if ("close" == call.method) {
        if (widget.close != null) {
          widget.close!();
        }
      } else if ("loadFail" == call.method) {
        if (widget.loadFail != null) {
          widget.loadFail!();
        }
      }
      return Future.value("");
    });
  }
}

class GDTEXpressAd extends StatefulWidget {
  final String pid;
  final double width;
  final double height;
  final ExpressAdController? controller;
  final VoidCallback? close;
  final VoidCallback? loadFail;

  GDTEXpressAd(this.pid, this.width, this.height,
      {this.controller, this.close, this.loadFail});

  @override
  State<StatefulWidget> createState() => _GDTEXpressAdState();
}

class _GDTEXpressAdState extends State<GDTEXpressAd> {
  MethodChannel? _expressAdChannel;

  @override
  void initState() {
    super.initState();
    if (widget.controller != null) {
      widget.controller!.refresh = () {
        if (_expressAdChannel != null) {
          _expressAdChannel!.invokeMethod("refresh");
        }
      };
    }
  }

  @override
  Widget build(BuildContext context) {
    return KeepAliveWrapper(
        child: UiKitView(
      viewType: "ad-gdt-express-view",
      layoutDirection: TextDirection.ltr,
      onPlatformViewCreated: onPlatformViewCreated,
      creationParams: <String, dynamic>{
        "width": widget.width,
        "height": widget.height,
        "pid": widget.pid
      },
      creationParamsCodec: const StandardMessageCodec(),
    ));
  }

  Future<void> onPlatformViewCreated(id) async {
    _expressAdChannel = MethodChannel("ad-gdt-express-view-$id");
    _expressAdChannel!.setMethodCallHandler((call) {
      if ("close" == call.method) {
        if (widget.close != null) {
          widget.close!();
        }
      } else if ("loadFail" == call.method) {
        if (widget.loadFail != null) {
          widget.loadFail!();
        }
      }
      return Future.value("");
    });
  }
}