rkm_educa_app/lib/screens/login_screen.dart

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:rkm_educa_app/screens/seleciona_filho_screen.dart';
import '../controllers/main_controllers.dart';
import '../utils/colors.dart';
import '../widgets/buttom_custom.dart';
import '../widgets/input_text.dart';
import '../widgets/snackBars.dart';
import 'package:http/http.dart' as http;

import '../widgets/text_custom.dart';

class LoginScreen extends StatefulWidget {
  const LoginScreen({Key? key}) : super(key: key);

  @override
  State<LoginScreen> createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> {

  final inputLogin = TextEditingController(text: 'mmatos');
  final inputSenha = TextEditingController(text: 'mmatos');
  bool loading = false;

  verificacao(){
    if(inputLogin.text.isNotEmpty){
      if(inputSenha.text.isNotEmpty){
        setState(() {
          loading = true;
        });
        conectAPI();
      }else{
        showSnackBar(context, 'Preencha sua senha', Colors.red);
      }
    }else{
      showSnackBar(context, 'Preencha seu Login', Colors.red);
    }
  }

  conectAPI()async{
    final url = 'http://192.168.18.2/projeto/api_educa/index.php/?NO_USERNAME=${inputLogin.text.toUpperCase()}';
    print(url);
    final response = await http.get(Uri.parse(url));
    var map = json.decode(response.body);
    print(map);
    if(map==false){
      showSnackBar(context, 'Login não cadastrado e/ou senha incorreta', Colors.red);
    }else{
      if(map['NO_USERNAME']==map['SENHA']){
        if(map['NO_USERNAME']==inputLogin.text.toUpperCase() && map['SENHA']==inputSenha.text.toUpperCase()){
          showSnackBar(context, 'Acesso validado', Colors.green);
          Navigator.pushReplacement(
            context,
            MaterialPageRoute(builder: (context) => SelecionaFilhoScreen()),
          );
        }else{
          showSnackBar(context, 'Login não cadastrado e/ou senha incorreta', Colors.red);
        }
      }else{
        print(MainControllers().encrypt(inputSenha.text,map['SENHA']));
        if(MainControllers().encrypt(inputSenha.text,map['SENHA']) == map['SENHA']){
          showSnackBar(context, 'Acesso validado', Colors.green);
          Navigator.push(
            context,
            MaterialPageRoute(builder: (context) => SelecionaFilhoScreen()),
          );
        }else{
          showSnackBar(context, 'Login não cadastrado e/ou senha incorreta', Colors.red);
        }
        // MainControllers().encrypt(inputSenha.text,map['SENHA']) == map['SENHA']
      }
    }
    setState(() {
      loading = false;
    });
  }

  @override
  Widget build(BuildContext context) {

    double height = MediaQuery.of(context).size.height;
    double width = MediaQuery.of(context).size.width;

    return Scaffold(
        backgroundColor: PaletteColors.white,
        body: Center(
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              Container(
                  child: Image.asset("assets/images/logoEduca.png",width:width * 0.4,height: height * 0.12)
              ),
              loading?Container():Container(
                width: width>900? width * 0.18:width*0.7,
                child: InputText(
                  inputFormatters: [],
                  controller: inputLogin,
                  title: 'Login',
                  width: width>900? width * 0.18:width*0.7,
                  colorBorder: PaletteColors.white,
                ),
              ),
              loading?Container():Container(
                width: width>900? width * 0.18:width*0.7,
                child: InputText(
                  inputFormatters: [],
                  controller: inputSenha,
                  title: 'Senha',
                  obscure: true,
                  width: width>900? width * 0.18:width*0.7,
                  colorBorder: PaletteColors.white,
                ),
              ),
              SizedBox(height: height * 0.02),
              loading?Row(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  CircularProgressIndicator(),
                  SizedBox(width: 20,),
                  TextCustom(text: 'VALIDANDO ACESSO...')
                ],
              ):ButtonCustom(
                widthCustom: 0.7,
                heightCustom: 0.07,
                text: "Entrar",
                size: 14.0,
                colorText: PaletteColors.white,
                colorButton: PaletteColors.primaryColor,
                colorBorder: PaletteColors.primaryColor,
                onPressed: ()=>verificacao(),
              ),
            ],
          ),
        )
    );
  }
}