AGRI AQUA GENESIS CODE-2

import 'package:flutter/material.dart';
import 'package:firebase_database/firebase_database.dart';
import 'package:tflite_flutter/tflite_flutter.dart';

void main() {
  runApp(HydroponicsApp());
}

class HydroponicsApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: DashboardScreen(),
    );
  }
}

class DashboardScreen extends StatefulWidget {
  @override
  _DashboardScreenState createState() => _DashboardScreenState();
}

class _DashboardScreenState extends State<DashboardScreen> {
  final databaseReference = FirebaseDatabase.instance.reference();
  double pH = 0.0;
  double ec = 0.0;
  double temperature = 0.0;
  double waterLevel = 0.0;
  late Interpreter interpreter;

  @override
  void initState() {
    super.initState();
    loadModel();
    databaseReference.child("sensors").onValue.listen((event) {
      var data = event.snapshot.value;
      setState(() {
        pH = data['pH'];
        ec = data['ec'];
        temperature = data['temperature'];
        waterLevel = data['waterLevel'];
      });
    });
  }

  Future<void> loadModel() async {
    interpreter = await Interpreter.fromAsset('assets/model.tflite');
  }

  double predictNutrientAdjustment(double pH, double ec) {
    var input = [pH, ec];
    var output = List.filled(1, 0).reshape([1, 1]);
    interpreter.run(input, output);
    return output[0][0];
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("Smart Hydroponics")),
      body: Padding(
        padding: EdgeInsets.all(16.0),
        child: Column(
          children: [
            Text("pH Level: $pH"),
            Text("EC Level: $ec"),
            Text("Temperature: $temperature°C"),
            Text("Water Level: $waterLevel%"),
            ElevatedButton(
              onPressed: () {
                double adjustment = predictNutrientAdjustment(pH, ec);
                ScaffoldMessenger.of(context).showSnackBar(
                  SnackBar(content: Text("Recommended Nutrient Adjustment: $adjustment")));
              },
              child: Text("Predict Nutrient Needs"),
            ),
          ],
        ),
      ),
    );
  }
}