import 'dart:typed_data';
import 'dart:ui';
import 'package:get/get.dart';
import 'package:flutter_webrtc/flutter_webrtc.dart';

import 'process.dart';

class RealController extends GetxController {
  var sightOffset1 = const Offset(3, 3).obs;
  var sightOffsetInit1 = const Offset(0, 0).obs;
  var sightInit1 = const Offset(0, 0).obs;
  var initDx = 0.0.obs;
  reset() {
    sightOffset1.value = const Offset(3, 3);
    sightOffsetInit1.value = const Offset(0, 0);
    sightInit1.value = const Offset(0, 0);

    initDx.value = 0.0;
    update();
  }

  RTCPeerConnection? peerConnection;
  RTCDataChannel? dataChannel;
  final speed = 0.0.obs;
  final depth = 0.0.obs;
  final tiltX = 0.0.obs;
  final tiltY = 0.0.obs;
  final centerX = 0.0.obs;
  final centerY = 0.0.obs;
  final current1 = 0.0.obs;
  final current2 = 0.0.obs;
  final totalFlow2 = 0.0.obs;
  final totalFlow1 = 0.0.obs;
  final flow10cm1 = 0.0.obs;
  final flow10cm2 = 0.0.obs;
  final subtotalFlow2 = 0.0.obs;
  final subtotalFlow1 = 0.0.obs;
  final recvTime = ''.obs;
  final alt = 0.0.obs;
  final lng = 0.0.obs;
  final lat = 0.0.obs;
  final pileId = ''.obs;
  final time = "0".obs;
  final startIndex = 0.obs;
  // 折线数组

  final processList = <ProcessEntity>[].obs;
  var isDataVisible = false.obs;

  void updateProcessList(List<ProcessEntity> newList) {
    processList.assignAll(newList); // 使用 assignAll 方法更新 RxList
  }

  DateTime? sliderTime;
  updateSlider(double newValue, [isHand = true]) {
    if (isHand) {
      sliderTime = DateTime.now();
    }
    startIndex.value = newValue.toInt();
    update();
  }

  @override
  void onInit() {
    super.onInit();
    // 定时器每秒更新时间
    // Timer.periodic(const Duration(milliseconds: 1000), (_) {
    //   time.value = DateTime.now();
    // });
    initializePeerConnection();
  }

  void initializePeerConnection() async {
    final configuration = <String, dynamic>{
      'iceServers': [
        {'url': 'stun:stun.l.google.com:19302'},
      ],
    };
    peerConnection = await createPeerConnection(configuration);
    initializeDataChannel();
  }

  void initializeDataChannel() async {
    // 创建数据通道
    dataChannel = await peerConnection!
        .createDataChannel('dataChannel', RTCDataChannelInit()..id = 1);

    // 监听数据通道的消息事件
    dataChannel!.onMessage = (RTCDataChannelMessage message) {
      // 处理接收到的消息
      if (message.isBinary) {
        onBleData(message.binary);
      }
    };
  }

  onBleData(Uint8List data) {
    ByteData byteData = data.buffer.asByteData();
    int tag = byteData.getUint8(0);
    // int length = byteData.getUint8(1);
    if (tag == 161) {
      speed.value = byteData.getInt16(2, Endian.little) * 0.1;
      int timeInt = byteData.getUint16(4, Endian.little);
      //  print(timeInt);
      time.value = convertSecondsToMinSec(timeInt);
      depth.value = byteData.getInt16(6, Endian.little) * 0.001;
      pileId.value = byteData.getUint16(8, Endian.little).toString();
      subtotalFlow1.value = byteData.getInt16(10, Endian.little) * 0.01;
      flow10cm1.value = byteData.getUint16(12, Endian.little) * 0.01;
      totalFlow1.value = byteData.getInt32(14, Endian.little) * 0.01;
      subtotalFlow2.value = byteData.getInt16(18, Endian.little) * 0.01;
      flow10cm2.value = byteData.getUint16(20, Endian.little) * 0.01;
      totalFlow2.value = byteData.getInt32(22, Endian.little) * 0.01;
      current1.value = byteData.getUint16(26, Endian.little) * 0.01;
      current2.value = byteData.getUint16(28, Endian.little) * 0.01;
      // current3.value = byteData.getUint16(30, Endian.little) * 0.01;
      int tag1 = byteData.getUint8(34);
      // int length = byteData.getUint8(35);
      if (tag1 == 162) {
        // var gpsStatus = byteData.getUint8(36);
        // var gpsView = byteData.getUint8(37);

        // var gpsUse = byteData.getUint8(38);
        // var reg = byteData.getUint8(39);
        // var utc = byteData.getUint32(40, Endian.little);
// 中心坐标
        centerX.value = byteData.getFloat64(44, Endian.little);
        centerY.value = byteData.getFloat64(52, Endian.little);
        //  print("中心---$centerX,$centerY");
        // tiltX.value = byteData.getFloat64(44, Endian.little);
        // tiltY.value = byteData.getFloat64(52, Endian.little);
        // var direction = byteData.getFloat64(60, Endian.little);
        // var pitch = byteData.getFloat64(68, Endian.little);
        // print("$gpsUse,$gpsView,$utc,$direction,$pitch");
      }
    }
  }

  String convertSecondsToMinSec(int totalSeconds) {
    int minutes = totalSeconds ~/ 60;
    int seconds = totalSeconds % 60;

    String formattedTime = '$minutes:${seconds.toString().padLeft(2, '0')}';

    return formattedTime;
  }

  @override
  void dispose() {
    dataChannel?.close(); // 关闭数据通道
    peerConnection?.close(); // 关闭对等连接
    super.dispose();
  }
}