Mobile_Health/fast_med_flutter/lib/welcome.dart

import 'dart:convert';
// import 'dart:html';
import 'dart:io';
import 'package:flutter/cupertino.dart';
import 'package:flutter_login/flutter_login.dart';
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
import 'register.dart';
import 'package:http/http.dart' as http;
import 'dart:convert' as convert;
import 'navigation.dart';




class WelcomePage extends StatefulWidget {
  WelcomePage({Key key, this.title}) : super(key: key);

  final String title;

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

class _WelcomePageState extends State<WelcomePage> {
  var Token;
  TextEditingController email = new TextEditingController();
  TextEditingController password = new TextEditingController();


  Future<List> send_data() async {

    var url = 'https://ada.uprrp.edu/~hector.sierra/FastMed/API/login.php';
    http.Response response = await http.post(url, body: {
      "email": email.text,
      "password": password.text,
    });
    print(response.body);
    print(response.statusCode);
    print(HttpStatus.ok);
    if("user not found" == response.body){
      print("maybe we use this");
    }
    else{
      print("User found");
      Token = email.text;

      Navigator.push(
          context, MaterialPageRoute(builder: (context) => NavigationPage()));

    }
  }


  Widget _message(BuildContext context){
    return RichText(
      textAlign: TextAlign.center,
      text: TextSpan(
          text: "Don't have an account?",
          style: GoogleFonts.cabin(
              fontSize: 18,
              color: Colors.black
          )
      ),
    );
  }

  Widget _title(BuildContext context){
    return RichText(
      textAlign: TextAlign.center,
      text: TextSpan(
          text: "Welcome to FastMed",
          style: GoogleFonts.cabin(
              fontSize: 30,
              color: Colors.red
          )
      ),
    );

  }

  Widget _LoginField(String title, TextEditingController controller, {bool pass = false}){
    return Container(
      padding: EdgeInsets.only(left: 0, top: 10, bottom: 10),
      child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,

          children: <Widget> [
            Text(
              title,
              style: TextStyle(fontWeight: FontWeight.bold, fontSize: 18),
            ),
            SizedBox(
                height: 30
            ),
            TextField(
              controller: controller,
              obscureText: pass,
              decoration: InputDecoration(
                border: (
                    UnderlineInputBorder(

                    )
                ),
              ),
            ),
          ]
      ),

    );
  }



  Widget _Fills(){
    return Column(
        children: <Widget> [
          _LoginField("Email", email),
          _LoginField("Password", password, pass: true),

        ]
    );
  }




  Widget _SubmitButton(BuildContext context){
    return InkResponse(
      onTap: (){

        send_data();


      },
      child: Container(
        padding: EdgeInsets.symmetric(vertical: 10),
        width: 180,
        alignment: Alignment.center,
        decoration: BoxDecoration(
          color: Colors.red,
          borderRadius: BorderRadius.circular(30),
        ),
        child: Text(
          "Login",
          style: TextStyle(fontSize: 22, color: Colors.white),
        ),
      ),
    );
  }


  Widget _RegisterButton(BuildContext context){
    return InkWell(
        onTap: () {
          Navigator.push(
              context, MaterialPageRoute(builder: (context) => RegisterPage()));
        },
        child: Container(
          // width: MediaQuery.of(context).size.width,
          width: 180,
          padding: EdgeInsets.symmetric(vertical:8),
          alignment: Alignment.center,
          decoration: BoxDecoration(
            color: Colors.red,
            // shape:

            borderRadius: BorderRadius.circular(30),
          ),
          child: Text(
            "Register",
            style: TextStyle(fontSize: 22, color: Colors.white),
          ),

        )
    );
  }

  @override
  Widget build(BuildContext context) {
    final height = MediaQuery.of(context).size.height;
    return Scaffold(
        body: Container(
          height: height,
          child:Container(
            width: MediaQuery.of(context).size.width,
            padding: EdgeInsets.symmetric(horizontal: 20),
            // height: MediaQuery.of(context).size.height,
            decoration: BoxDecoration(
                borderRadius: BorderRadius.all(Radius.circular(4)),
                boxShadow: [
                  BoxShadow(
                      color: Colors.white,
                      offset: Offset(0,3),
                      blurRadius: 5,
                      spreadRadius: 2)
                ]

            ),
            child: SingleChildScrollView(
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.center,
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: <Widget> [
                    SizedBox(
                      height: 80,
                    ),
                    _title(context),
                    SizedBox(
                      height: 150,
                    ),
                    // _LogInButton(context),
                    _Fills(),
                    SizedBox(
                      height: 60,
                    ),
                    _SubmitButton(context),
                    SizedBox(
                      height: 45,
                    ),
                    _message(context),
                    SizedBox(
                      height: 15,
                    ),
                    _RegisterButton(context),
                    SizedBox(
                      height: 20,
                    )
                  ],
                )
            ),
          ),
        )
    );
  }
}