import 'dart:async';
import 'dart:core';

import 'package:flutter/material.dart';
import 'package:flutter_webrtc/flutter_webrtc.dart';

import 'draggable_cam.dart';

class CamViewWidget extends StatefulWidget {
  RTCVideoRenderer localRenderer;
  RTCVideoRenderer remoteRenderer;
  MediaStream localStream;
  BoxConstraints constraints;
  StreamController<bool> onButtonBarVisibleStreamController;
  StreamController<double> onButtonBarHeightStreamController;

  CamViewWidget({this.localRenderer, this.remoteRenderer, this.constraints, this.onButtonBarVisibleStreamController, this.onButtonBarHeightStreamController});

  @override
  _CamViewWidgetState createState() => _CamViewWidgetState();
}

class _CamViewWidgetState extends State<CamViewWidget> {
  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      width: double.infinity,
      height: double.infinity,
      child: Stack(
        children: [
          FractionallySizedBox(
            heightFactor: 1, widthFactor: 1,
            child: Container(
              child: RTCVideoView(widget.remoteRenderer, mirror: true),
            ),
          ),
          DraggableCam(
            key: Key('publisher'),
            onButtonBarHeight: widget.onButtonBarHeightStreamController.stream,
            onButtonBarVisible: widget.onButtonBarVisibleStreamController.stream,
            availableScreenSize: widget.constraints.biggest,
            child: RTCVideoView(widget.localRenderer),
          ),
          // Expanded(child: RTCVideoView(widget.remoteRenderer)),
        ],
      ),
    );
  }
}