import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'chats.dart';
import 'connect.dart';
import 'profile.dart';
import 'config.dart';
import 'dart:convert';
import 'dart:async';
import 'functions.dart';
import 'dart:io';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:http/http.dart' as http;
import 'main.dart';
import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter_ringtone_player/flutter_ringtone_player.dart';
import 'package:intl/intl.dart';
import 'package:location/location.dart';
import 'package:flutter_link_preview/flutter_link_preview.dart';
import 'package:maps_launcher/maps_launcher.dart';
import 'package:toast/toast.dart';
import 'package:image_picker/image_picker.dart';
class ChatMessage{
  String message_content;
  String message_id;
  String message_type;
  String time;
  String type;
  String status;
  String id;
  ChatMessage({@required this.type,@required this.message_content, @required this.message_type, @required this.message_id, @required this.time, @required this.status, @required this.id});
  factory ChatMessage.fromJson(Map<String, dynamic> json) {
    return ChatMessage(
      message_content: json['message'] as String,
      type: json['type'] as String,
      message_type: json['message_type'] as String,
      message_id: json['message_id'] as String,
      time: json['time'] as String,
      status: json['status'] as String,
      id: json['id'] as String,
    );
  }
}
/// This Widget is the main application widget.
class Chat extends StatelessWidget {
  String id;
  String userid;
  String online;
  String name;
  String image;
  int back;
  Chat({this.id,this.userid,this.online,this.name,this.image,this.back});
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: MyAppStatefulWidget(id:id,userid:userid,online:online,name:name,image:image,back:back),
    );
  }
}
class MyAppStatefulWidget extends StatefulWidget {
  String id;
  String userid;
  String online;
  String name;
  String image;
  int back;
  MyAppStatefulWidget({Key key,this.id,this.userid,this.online,this.name,this.image,this.back}) : super(key: key);

  @override
  _MyApp createState() => _MyApp(id:id,userid:userid,online:online,name:name,image:image,back:back);
}
class _MyApp extends State{
  String id;
  String userid;
  String online;
  String name;
  String image;
  int back;
  String firebase_token = "";
  _MyApp({this.id,this.userid,this.online,this.name,this.image,this.back});
  List<ChatMessage> messages;
  List<ChatMessage> parseMessages(String responseBody) {
    final parsed = json.decode(responseBody).cast<Map<String, dynamic>>();
    return parsed.map<ChatMessage>((json) => ChatMessage.fromJson(json)).toList();
  }
  Future get_firebase_token() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    firebase_token = prefs.getString('firebase_token') ?? '';
  }
  final messageController = TextEditingController();
  ScrollController _scrollController = new ScrollController();
  String session_id = "";
  int from = 0;
  StreamSubscription<LocationData> locationSubscription;
  Future init() async{
    final prefs = await SharedPreferences.getInstance();
    final session = prefs.getString('session') ?? '';
    final fromid = prefs.getInt('userid') ?? 0;
    session_id = session;
    from = fromid;
    if(session_id.isNotEmpty){
      chats();
    }
  }
  void chats() async {
    //get suggestion function
    var res = await http.post(
        new Config().messages_url(session_id,userid));
    print(userid);
    //in query there might be unwant character so, we encode the query to url
    if (res.statusCode == 200) {
      if (mounted) {
        setState(() {
          messages = parseMessages(res.body);
          jump();
          print(messages);
          //update data value and UI
        });
      }
    }
  }
  void delete_chat(String id) async {
    //get suggestion function
    var res = await http.post(
        new Config().delete_chat_url(session_id,id));
  }
  void send_chat(String to,String message,String message_id) async {
      //get suggestion function
      var res = await http.post(
        new Config().message(firebase_token,session_id,to,message,message_id));
      //in query there might be unwant character so, we encode the query to url
      if (res.statusCode == 200) {
        /* Later update in version 2 status of message */
      }
  }
  void send(){
    String message = messageController.text;
    if(message.isNotEmpty){
      int index = messages.length;
      int now = index+1;
      String message_id = new Functions().generate_md5(from.toString()+"_"+userid+"_"+now.toString()+new Functions().timestamp().toString());
      String status = "0";
      DateTime dt = DateTime.now();
      String time = DateFormat('dd/MM/yyyy kk:mm').format(dt);
      ChatMessage chat = new ChatMessage(type:"1",message_content:message,message_type: "sender",message_id: message_id,status:status,time:time,id: "");
      setState(() {
        messageController.clear();
        messages.add(chat);
        jump();
        //Send message to the recipient
        send_chat(userid,message,message_id);
      });
    }
  }
  bool sharing_location = false;
  BuildContext shareLocationDialogContext;
  shareLocationDialog(BuildContext context) {
    // set up the buttons
    Widget cancelButton = FlatButton(
      child: Padding(
          padding: const EdgeInsets.fromLTRB(10, 10, 10, 10),
          //Button for generating QR code
          child:Text("Cancel",style: TextStyle(color: Colors.red,fontSize: 15),)),
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(20),
        side: BorderSide(color: Colors.red),
      ),
      onPressed:  () {
        Navigator.pop(shareLocationDialogContext);
      },
    );
    Widget continueButton = FlatButton(
      child: Padding(
          padding: const EdgeInsets.fromLTRB(10, 10, 10, 10),
          //Button for generating QR code
          child:Text("Yes",style: TextStyle(color: Colors.green,fontSize: 15),)),
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(20),
        side: BorderSide(color: Colors.green),
      ),
      onPressed:  () {
        Navigator.pop(shareLocationDialogContext);
        share_location();
      },
    );
    // set up the AlertDialog
    AlertDialog alert = AlertDialog(
      title: Text("Share Your Location",
        style: TextStyle(
          color: Colors.red,
        ),),
      content: Text("Are you sure you want to share your location with "+name+"?"),
      actions: [
        cancelButton,
        continueButton,
      ],
    );
    // show the dialog
    showDialog(
      context: context,
      builder: (BuildContext context) {
        shareLocationDialogContext = context;
        return alert;
      },
    );
  }
  void share_location() async{
    setState(() {
      sharing_location = true;
    });
    String latitude = "", longitude = "";
    Location location = new Location();
    bool _serviceEnabled;
    PermissionStatus _permissionGranted;
    _serviceEnabled = await location.serviceEnabled();
    if (!_serviceEnabled) {
      _serviceEnabled = await location.requestService();
      if (!_serviceEnabled) {
        return;
      }
    }
    _permissionGranted = await location.hasPermission();
    if (_permissionGranted == PermissionStatus.denied) {
      _permissionGranted = await location.requestPermission();
      if (_permissionGranted != PermissionStatus.granted) {
        return;
      }
    }
    location.changeSettings(accuracy:LocationAccuracy.high,distanceFilter: 0);
    await location.getLocation().then((res) {
      latitude = res.latitude.toString();
      longitude = res.longitude.toString();
      //Send to server
      send_location(latitude,longitude);
    });
  }
  Future<File> file;
  String base64Image;
  File tmpFile;
  final captionController = TextEditingController() ;
  void send_location(String latitude, String longitude) async{
    if(latitude.isNotEmpty) {
      int index = messages.length;
      int now = index+1;
      String message = latitude+"_"+longitude;
      String message_id = new Functions().generate_md5(from.toString()+"_"+userid+"_"+now.toString()+new Functions().timestamp().toString());
      String status = "0";
      DateTime dt = DateTime.now();
      String time = DateFormat('dd/MM/yyyy kk:mm').format(dt);
      ChatMessage chat = new ChatMessage(type:"3",message_content:message,message_type: "sender",message_id: message_id,status:status,time:time,id: "");
      setState(() {
        messageController.clear();
        messages.add(chat);
        jump();
        //Send message to the recipient
        send_location_sharing(latitude,longitude,message_id);
      });
    }
  }
  void send_location_sharing(String latitude, String longitude, String message_id) async{
    if(latitude.isNotEmpty) {
      var res = await http.post(
          new Config().share_location_url(session_id,firebase_token,userid, latitude,longitude,message_id));
      //in query there might be unwant character so, we encode the query to url
      if (res.statusCode == 200) {
        /* Update GUI that delivered */

      }
    }
  }
  void pick_photo(setState){
    setState(() {
      file = ImagePicker.pickImage(source: ImageSource.gallery);
    });
  }
  void jump(){
    WidgetsBinding.instance.addPostFrameCallback((_) {
      if(_scrollController.hasClients){
        _scrollController.animateTo(_scrollController.position.maxScrollExtent+700, duration: Duration(milliseconds: 1), curve: Curves.easeInOut);
        double max = _scrollController.position.maxScrollExtent;
        print("You are here:$max");
      }
    });
  }
  @override
  initState() {
    init();
    get_firebase_token();
    super.initState();

    jump();
    final fbm = FirebaseMessaging();
    fbm.requestNotificationPermissions(IosNotificationSettings(
      sound: true,
      badge: true,
      alert: true,
    ));
    fbm.configure(
      onMessage: (Map<String, dynamic> message) async {
        var action = message['data']['action'];
        print("Action:$action");
        if(action=="1") {
            var toid = message['data']['toid'];
            var fromid = message['data']['fromid'];
            if(from==toid) {
               //If it is another person who sent the message, play sound
              if(userid !=fromid){
                FlutterRingtonePlayer.playNotification();
              }
            }
            //If it is the one being chatted with, create message object and add
            print("From:$from");
            print("userid:$userid");
            print("toid:$toid");
            print("Fromid:$fromid");
           if(((from==int.parse(toid))&&(int.parse(userid)==int.parse(fromid)))||((from==int.parse(fromid))&&(int.parse(userid)==int.parse(toid)))){
             print("You are here");
             var megs = message['data']['message'];
             var message_id = message['data']['message_id'];
             var type = message['data']['type'];
             var from_id = message['data']['from_id'];
             var to_id = message['data']['to_id'];
             var time = message['data']['time'];
             String id = "";
             if(from==fromid){
               id = from_id;
             }else{
               id = to_id;
             }
             String message_type = "";
             if(from==int.parse(fromid)){
               message_type = "sender";
             }else{
               message_type = "receiver";
             }
             ChatMessage chat = new ChatMessage(type:type,message_content:megs,message_type: message_type,message_id: message_id,status:"0",time:time,id:id);
             setState(() {
               messages.add(chat);
               jump();
             });
           }
        }
      },
      onLaunch: (Map<String, dynamic> message) async {
          var action = message['data']['action'];
          print("Action:$action");
            if(action=="1") {
              var toid = message['data']['toid'];
              var fromid = message['data']['fromid'];
              if(from==toid) {
                 //If it is another person who sent the message, play sound
                if(userid !=fromid){
                  FlutterRingtonePlayer.playNotification();
                }
              }
              //If it is the one being chatted with, create message object and add
              print("From:$from");
              print("userid:$userid");
              print("toid:$toid");
              print("Fromid:$fromid");
              if(((from==int.parse(toid))&&(int.parse(userid)==int.parse(fromid)))||((from==int.parse(fromid))&&(int.parse(userid)==int.parse(toid)))){
                print("You are here");
                var megs = message['data']['message'];
                var message_id = message['data']['message_id'];
                var type = message['data']['type'];
                var from_id = message['data']['from_id'];
                var to_id = message['data']['to_id'];
                var time = message['data']['time'];
                String id = "";
                if(from==fromid){
                  id = from_id;
                }else{
                  id = to_id;
                }
                String message_type = "";
                if(from==int.parse(fromid)){
                  message_type = "sender";
                }else{
                  message_type = "receiver";
                }
                ChatMessage chat = new ChatMessage(type:type,message_content:megs,message_type: message_type,message_id: message_id,status:"0",time:time,id:id);
                setState(() {
                  messages.add(chat);
                  jump();
                });
              }
            }
      },
      onResume: (Map<String, dynamic> message) async {
          var action = message['data']['action'];
          print("Action:$action");
          if(action=="1") {
            var toid = message['data']['toid'];
            var fromid = message['data']['fromid'];
            if(from==toid) {
             //If it is another person who sent the message, play sound
              if(userid !=fromid){
                FlutterRingtonePlayer.playNotification();
              }
            }
            //If it is the one being chatted with, create message object and add
            print("From:$from");
            print("userid:$userid");
            print("toid:$toid");
            print("Fromid:$fromid");
            if(((from==int.parse(toid))&&(int.parse(userid)==int.parse(fromid)))||((from==int.parse(fromid))&&(int.parse(userid)==int.parse(toid)))){
            print("You are here");
            var megs = message['data']['message'];
            var message_id = message['data']['message_id'];
            var type = message['data']['type'];
            var from_id = message['data']['from_id'];
            var to_id = message['data']['to_id'];
            var time = message['data']['time'];
            String id = "";
            if(from==fromid){
              id = from_id;
            }else{
              id = to_id;
            }
            String message_type = "";
            if(from==int.parse(fromid)){
              message_type = "sender";
            }else{
              message_type = "receiver";
            }
            ChatMessage chat = new ChatMessage(type:type,message_content:megs,message_type: message_type,message_id: message_id,status:"0",time:time,id:id);
              setState(() {
                messages.add(chat);
                jump();
              });
            }
          }
      },
    );
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        elevation: 0,
        automaticallyImplyLeading: false,
        backgroundColor: Colors.white,
        flexibleSpace: SafeArea(
          child: Container(
            padding: EdgeInsets.only(right: 16),
            child: Row(
              children: <Widget>[
                IconButton(
                  onPressed: (){
                    if(back==1) {
                      Navigator.of(context).pushReplacement(MaterialPageRoute(
                        builder: (context) =>
                            Chats(),
                      ));
                    }else if(back==2){
                      Navigator.of(context).pushReplacement(MaterialPageRoute(
                        builder: (context) =>
                            Connect(),
                      ));
                    }else if(back==3){
                      Navigator.of(context).pushReplacement(MaterialPageRoute(
                        builder: (context) =>
                            MyApp(),
                      ));
                    }
                  },
                  icon: Icon(Icons.arrow_back,color: Colors.black,),
                ),
                SizedBox(width: 2,),
                CircleAvatar(
                  backgroundImage: NetworkImage(image),
                  maxRadius: 20,
                ),
                SizedBox(width: 12,),
                Expanded(
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: <Widget>[
                      Text(name,style: TextStyle( fontSize: 16 ,fontWeight: FontWeight.w600),),
                      SizedBox(height: 6,),
                      Text(online,style: TextStyle(color: Colors.grey.shade600, fontSize: 13),),
                    ],
                  ),
                ),
                SizedBox(width: 2,),
                IconButton(
                  onPressed: (){
                    Navigator.of(context).pushReplacement(MaterialPageRoute(
                      builder: (context) =>
                          Profile(id:id,back:back),
                    ));
                  },
                  icon: Icon(Icons.account_circle,color: Colors.black,),
                ),
              ],
            ),
          ),
        ),
      ),
      body: Stack(
        children: <Widget>[
            Column(
            children: <Widget>[
                messages  == null?Expanded(
                    child:Container(
                        padding: EdgeInsets.all(20),
                        child: Center(child: CircularProgressIndicator())
                      //if is searching then show "Please wait"
                      //else show search peopels text
                    )):Expanded(child:ListView.builder(
                  itemCount: messages.length,
                  controller: _scrollController,
                  shrinkWrap: true,
                  padding: EdgeInsets.only(top: 10,bottom: 50),
                  itemBuilder: (context, index){
                    final item = messages[index].id;
                    return Dismissible(
                      // Each Dismissible must contain a Key. Keys allow Flutter to
                      // uniquely identify widgets.
                      key: Key(item),
                      // Provide a function that tells the app
                      // what to do after an item has been swiped away.
                      onDismissed: (direction) {
                        // Remove the item from the data source.
                        setState(() {
                          messages.removeAt(index);
                        });
                      },
                        confirmDismiss: (DismissDirection direction) async {
                          return await showDialog(
                            context: context,
                            builder: (BuildContext context) {
                              return AlertDialog(
                                title: Text("Delete Confirmation",
                                  style: TextStyle(
                                    color: Colors.red,
                                  ),),
                                content: const Text("Are you sure you want to delete this chat?"),
                                actions: <Widget>[
                                  FlatButton(
                                      onPressed: () {
                                        Navigator.of(context).pop(true);
                                        delete_chat(messages[index].message_id);
                                        },
                                      child:  Padding(
                                          padding: const EdgeInsets.fromLTRB(20, 10, 20, 10),
                                          //Button for generating QR code
                                          child:Text("Delete",style: TextStyle(color: Colors.red,fontSize: 15),)),
                                    shape: RoundedRectangleBorder(
                                      borderRadius: BorderRadius.circular(20),
                                      side: BorderSide(color: Colors.red),
                                    ),
                                  ),
                                  FlatButton(
                                    onPressed: () => Navigator.of(context).pop(false),
                                    child:  Padding(
                                        padding: const EdgeInsets.fromLTRB(20, 10, 20, 10),
                                        //Button for generating QR code
                                        child:Text("Cancel",style: TextStyle(color: Colors.blue,fontSize: 15),)),
                                      shape: RoundedRectangleBorder(
                                        borderRadius: BorderRadius.circular(20),
                                        side: BorderSide(color: Colors.blue),
                                      ),
                                  ),
                                ],
                              );
                            },
                          );
                        },
                      background: Container(
                        child: Padding(
                          padding: const EdgeInsets.all(15),
                          child: Row(
                            children: [
                              Icon(Icons.delete, color: Colors.red),
                              Text('Delete Chat', style: TextStyle(color: Colors.red)),
                            ],
                          ),
                        ),
                      ),
                      child:Container(
                        padding: EdgeInsets.only(left: 14,right: 14,top: 10,bottom: 10),
                        child: Column(
                            children: <Widget>[
                              Align(
                                  alignment: (messages[index].message_type == "receiver"?Alignment.topLeft:Alignment.topRight),
                                  child: Container(
                                    constraints: BoxConstraints(
                                        maxWidth: MediaQuery.of(context).size.width * .6),
                                    decoration: BoxDecoration(
                                      borderRadius: BorderRadius.circular(20),
                                      color: (messages[index].message_type  == "receiver"?Colors.grey.shade200:Colors.blue[200]),
                                    ),
                                    padding: EdgeInsets.all(16),
                                    child:message_content(messages[index].type,messages[index].message_content),
                                  )
                              ),
                              Align(
                                  alignment: (messages[index].message_type == "receiver"?Alignment.topLeft:Alignment.topRight),
                                  child: Container(
                                    constraints: BoxConstraints(
                                        maxWidth: 200),
                                    padding: EdgeInsets.all(16),
                                    child:messages[index].message_type == "receiver"?Text(messages[index].time, style: TextStyle(fontSize: 10,color: Colors.black38,),):message_status(messages[index].status,messages[index].time),
                                  )
                              ),
                            ]
                        ),
                      ),
                    );
                  },
                )),
                Align(
                  alignment: Alignment.bottomLeft,
                  child: Container(
                            padding: EdgeInsets.only(left: 10,bottom: 10,top: 10),
                            height: 60,
                            width: double.infinity,
                            color: Colors.white,
                            child: Row(
                              children: <Widget>[
                                GestureDetector(
                                  onTap: (){
                                    showModalBottomSheet(
                                        shape: RoundedRectangleBorder(
                                            borderRadius:
                                            BorderRadius.vertical(top: Radius.circular(20.0))),
                                        backgroundColor: Colors.white,
                                        isScrollControlled: true,
                                        context: context,
                                        builder: (context) {
                                          return Column(
                                            mainAxisSize: MainAxisSize.min,
                                            children: <Widget>[
                                              ListTile(
                                                leading: new Icon(Icons.photo, color: Colors.blue,),
                                                title: new Text('Photo'),
                                                onTap: () {
                                                  Navigator.pop(context);
                                                  showGeneralDialog(
                                                    context: context,
                                                    pageBuilder: (context, animation, secondaryAnimation) => Scaffold(
                                                      backgroundColor: Colors.white,
                                                      appBar: AppBar(
                                                        // Here we take the value from the MyHomePage object that was created by
                                                        // the App.build method, and use it to set our appbar title.
                                                        title: Text("Send To "+name, style: TextStyle(
                                                            color: Colors.black)),
                                                        automaticallyImplyLeading: true,
                                                        //`true` if you want Flutter to automatically add Back Button when needed,
                                                        //or `false` if you want to force your own back button every where
                                                        leading: IconButton(
                                                          icon: Icon(Icons.arrow_back, color: Colors.black),
                                                          //onPressed:() => Navigator.pop(context, false),
                                                          onPressed: () {
                                                            Navigator.pop(context);
                                                          },
                                                        ),
                                                        //
                                                        backgroundColor: Colors.white,
                                                        elevation: 0.0,
                                                      ),
                                                      body: Stack(
                                                        children: <Widget>[
                                                          file !=null?FutureBuilder<File>(
                                                            future: file,
                                                            builder: (BuildContext context, AsyncSnapshot<File> snapshot) {
                                                              if (snapshot.connectionState == ConnectionState.done &&
                                                                  null != snapshot.data) {
                                                                tmpFile = snapshot.data;
                                                                base64Image = base64Encode(snapshot.data.readAsBytesSync());
                                                                return Container(
                                                                  decoration: new BoxDecoration(
                                                                      image: new DecorationImage(
                                                                        image: new FileImage(snapshot.data),
                                                                        fit: BoxFit.cover,
                                                                      )),
                                                                );
                                                              } else if (null != snapshot.error) {
                                                                return const Text(
                                                                  'Error Picking Image',
                                                                  textAlign: TextAlign.center,
                                                                );
                                                              }else{
                                                                return SizedBox(
                                                                  height: 0,
                                                                );
                                                              }
                                                            },
                                                          ):SizedBox(
                                                            height: 0,
                                                          ),
                                                           Center(
                                                               child: SingleChildScrollView(
                                                               padding: EdgeInsets.all(10.0),
                                                                child:Column(
                                                                    crossAxisAlignment: CrossAxisAlignment.stretch,
                                                                     children: <Widget>[
                                                                       file !=null?SizedBox(
                                                                         height: 20,
                                                                       ):SizedBox(
                                                                         height: 0,
                                                                       ),
                                                                       file !=null?TextField(
                                                                         controller: captionController,
                                                                         textCapitalization: TextCapitalization.sentences,
                                                                         keyboardType: TextInputType.multiline,
                                                                         textInputAction: TextInputAction.newline,
                                                                         minLines: 1,
                                                                         maxLines: null,
                                                                         decoration: InputDecoration(
                                                                             prefixIcon: Icon(
                                                                               Icons.photo,
                                                                               color: Colors.black,
                                                                             ),
                                                                             hintStyle: TextStyle(color: Colors.black),
                                                                             filled: true,
                                                                             fillColor: Colors.white,
                                                                             hintText: 'Add Caption',
                                                                             border:
                                                                             OutlineInputBorder(borderRadius: BorderRadius.circular(30.0))
                                                                         ),
                                                                       ):SizedBox(
                                                                         height: 0,
                                                                       ),
                                                                       SizedBox(
                                                                         height: 20,
                                                                       ),
                                                                      Container(
                                                                          color:Colors.white,
                                                                          child:Row(
                                                                              children: <Widget>[
                                                                                    FlatButton(
                                                                                      child: SizedBox(
                                                                                        /// Enter your fixed width here, 300.0 ist just an example
                                                                                        width: 100.0,
                                                                                        child: ListTile(
                                                                                          dense:true, contentPadding: EdgeInsets.only(left: 10.0, right: 10.0), visualDensity: VisualDensity(horizontal: 0, vertical: -4),
                                                                                          minLeadingWidth:20,
                                                                                          leading: Icon(Icons.photo),
                                                                                          title: Text("Photo"),
                                                                                        ),
                                                                                      ),
                                                                                      onPressed:  () {
                                                                                           pick_photo(setState);
                                                                                        },
                                                                                    ),
                                                                                    Spacer(),
                                                                                    file !=null?FlatButton(
                                                                                      child: SizedBox(
                                                                                        /// Enter your fixed width here, 300.0 ist just an example
                                                                                        width: 100.0,
                                                                                        child: ListTile(
                                                                                          dense:true, contentPadding: EdgeInsets.only(left: 10.0, right: 10.0), visualDensity: VisualDensity(horizontal: 0, vertical: -4),
                                                                                          minLeadingWidth:20,
                                                                                          leading: Icon(Icons.send),
                                                                                          title: Text("Send"),
                                                                                        ),
                                                                                      ),
                                                                                      onPressed:  () {
                                                                                        setState(() {

                                                                                        });
                                                                                      },
                                                                                    ):SizedBox(
                                                                                          height: 0,
                                                                                        ),
                                                                                    ])),
                                                                        ]))
                                                              )]),//Put your screen design here!
                                                        ),
                                                  );
                                                  setState(() {
                                                    file = ImagePicker.pickImage(source: ImageSource.gallery);
                                                  });
                                                },
                                              ),
                                              ListTile(
                                                leading: new Icon(Icons.location_on_rounded, color: Colors.blue,),
                                                title: new Text('Location'),
                                                onTap: () {
                                                  Navigator.pop(context);
                                                  shareLocationDialog(context);
                                                },
                                              ),
                                            ],
                                          );
                                        });
                                  },
                                  child: Container(
                                    height: 30,
                                    width: 30,
                                    decoration: BoxDecoration(
                                      color: Colors.lightBlue,
                                      borderRadius: BorderRadius.circular(30),
                                    ),
                                    child: Icon(Icons.add, color: Colors.white, size: 20, ),
                                  ),
                                ),
                                SizedBox(width: 15,),
                                Expanded(
                                  child: TextField(
                                    controller: messageController,
                                    textCapitalization: TextCapitalization.sentences,
                                    keyboardType: TextInputType.multiline,
                                    textInputAction: TextInputAction.newline,
                                    minLines: 1,
                                    maxLines: null,
                                    decoration: InputDecoration(
                                        hintText: "Write message...",
                                        hintStyle: TextStyle(color: Colors.black54),
                                        border: InputBorder.none
                                    ),
                                    onTap: () {
                                        jump();
                                    },
                                  ),
                                ),
                                SizedBox(width: 15,),
                                FloatingActionButton(
                                  onPressed: (){
                                    send();
                                  },
                                  child: Icon(Icons.send,color: Colors.white,size: 18,),
                                  backgroundColor: Colors.blue,
                                  elevation: 0,
                                ),
                              ],

                            ),
                          ),
                    ),
                ]),
          ],
        ),
    );
  }
  Widget message_content(String type,String message){
    if(type=="1"){
      return Text(message, style: TextStyle(fontSize: 15),);
    }else if(type=="3"){
      var coords = message.split("_");
      String url = "https://www.google.com/maps/search/?api=1&query="+coords[0]+"%2C"+coords[1];
      return FlatButton(
        child: FlutterLinkPreview(url: url),
        onPressed:  () {
          MapsLauncher.launchCoordinates(double.parse(coords[0]), double.parse(coords[1]));
        },
      );
    }
  }
  Widget message_status(String status,String time){
    print("Status$status");
    if(status=="0"){
      return ListTile(
        dense:true, contentPadding: EdgeInsets.only(left: 10.0, right: 10.0), visualDensity: VisualDensity(horizontal: 0, vertical: -4),
        minLeadingWidth:20,
        title: Text(time, style: TextStyle(
          color: Colors.black38,
        )),
        leading: Icon(Icons.check, color: Colors.black38),
      );
    }else if(status=="1"){
      return ListTile(
        dense:true, contentPadding: EdgeInsets.only(left: 10.0, right: 10.0), visualDensity: VisualDensity(horizontal: 0, vertical: -4),
        minLeadingWidth:20,
        title: Text(time, style: TextStyle(
          color: Colors.black38,
        )),
        leading: SizedBox(width:50,child:Row(children: <Widget>[Icon(Icons.check, color: Colors.black38),Icon(Icons.check, color: Colors.black38)])),
      );
    }else if(status=="2"){
      return ListTile(
        dense:true, contentPadding: EdgeInsets.only(left: 10.0, right: 10.0), visualDensity: VisualDensity(horizontal: 0, vertical: -4),
        minLeadingWidth:20,
        title: Text(time, style: TextStyle(
          color: Colors.black38,
        )),
        leading: SizedBox(width:50,child:Row(children: <Widget>[Icon(Icons.check, color: Colors.blue),Icon(Icons.check, color: Colors.blue)])),
      );
    }
  }
}