import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:skripsi/config/theme.dart';
import 'package:skripsi/controller/cPerhitunganKNN.dart';
import 'package:skripsi/controller/cTambahDataTesting.dart';
import 'package:skripsi/controller/cUser.dart';
import 'package:skripsi/view/home_page.dart';

class TmbhDataTesting extends StatefulWidget {
  const TmbhDataTesting({super.key});

  @override
  State<TmbhDataTesting> createState() => _TmbhDataTestingState();
}

class _TmbhDataTestingState extends State<TmbhDataTesting> {
  final cTambahDataTesting = Get.put(CTambahDataTesting());
  final cUser = Get.put(CUser());

  List<List<double>> features = [];

  List<String> labels = [];

  getData() async {
    await cTambahDataTesting.getDataTrainingForTesting();
    final listData = cTambahDataTesting.listTambahDataTesting;
    labels = listData.map((e) => e.status ?? '').toList();
    features = listData
        .map((e) => [
              double.parse(e.jumlahKejahatan ?? '0'),
              double.parse(e.jarakTkpPolres ?? '0')
            ])
        .toList();
  }

  String result = '';
  List<String> nearestNeighbors = [];
  List<Map<String, dynamic>> distances = [];

  final tkpController = TextEditingController();
  final jumlahKejahatanController = TextEditingController();
  final jarakTkpPolresController = TextEditingController();
  final kController = TextEditingController();

  classify() async {
    if (tkpController.text.isEmpty) {
      Get.snackbar("Error", "Masukkan TKP", backgroundColor: Colors.red);
    } else if (jumlahKejahatanController.text.isEmpty) {
      Get.snackbar("Error", "Masukkan Jumlah Kejahatan",
          backgroundColor: Colors.red);
    } else if (jarakTkpPolresController.text.isEmpty) {
      Get.snackbar("Error", "Masukkan Jarak TKP - Polres Terdekat",
          backgroundColor: Colors.red);
    } else if (kController.text.isEmpty) {
      Get.snackbar("Error", "Masukkan Nilai K", backgroundColor: Colors.red);
    } else {
      double suhu = double.tryParse(jumlahKejahatanController.text) ?? 0.0;
      double kelembapan = double.tryParse(jarakTkpPolresController.text) ?? 0.0;
      int k = int.tryParse(kController.text) ?? 1;

      List<double> newPoint = [suhu, kelembapan];
      PerhitunganKNN perhitunganKNN = PerhitunganKNN(features, labels);
      Map<String, dynamic> classificationResult =
          perhitunganKNN.classify(newPoint, k);
      setState(() {
        result = classificationResult['result'];
        nearestNeighbors = classificationResult['nearestNeighbors'];
        distances = classificationResult['distances'];
      });
    }
  }

  postDataHasilTesting() async {
    if (tkpController.text.isEmpty) {
      Get.snackbar("Error", "Masukkan TKP", backgroundColor: Colors.red);
    } else if (jumlahKejahatanController.text.isEmpty) {
      Get.snackbar("Error", "Masukkan Jumlah Kejahatan",
          backgroundColor: Colors.red);
    } else if (jarakTkpPolresController.text.isEmpty) {
      Get.snackbar("Error", "Masukkan Jarak TKP - Polres Terdekat",
          backgroundColor: Colors.red);
    } else {
      await cTambahDataTesting.postDataTesting(
          cUser.data.idUser ?? "",
          tkpController.text,
          jumlahKejahatanController.text,
          jarakTkpPolresController.text,
          result);
      if (cTambahDataTesting.success) {
        Get.snackbar("Success", 'Data Berhasil Ditambahkan',
            backgroundColor: Colors.green);
        Get.offAll(const HomePage());
      } else {
        Get.snackbar("Error", 'Data Gagal Ditambahkan',
            backgroundColor: Colors.red);
      }
    }
  }

  @override
  void initState() {
    super.initState();
    getData();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      resizeToAvoidBottomInset: false,
      backgroundColor: whiteColor,
      appBar: AppBar(
        elevation: 0,
        backgroundColor: whiteColor,
        leadingWidth: 70.w,
        leading: TextButton(
          onPressed: () {
            Navigator.pop(context);
          },
          child: Text('Batal', style: robotoSedangHitam),
        ),
        centerTitle: true,
        title: Text('Tambah Kasus Testing', style: robotoSedangHitam),
      ),
      body: GetBuilder<CTambahDataTesting>(builder: (_) {
        if (_.loading) {
          return const Center(
            child: CircularProgressIndicator(),
          );
        }
        return SingleChildScrollView(
          child: Padding(
            padding: EdgeInsets.all(8.w),
            child: Column(
              children: [
                TextFormField(
                  keyboardType: TextInputType.emailAddress,
                  controller: tkpController,
                  autofocus: true,
                  decoration: InputDecoration(
                    labelText: 'TKP',
                    labelStyle: robotoSedangHitam.copyWith(
                      fontWeight: FontWeight.bold,
                    ),
                    hintText: 'Masukkan TKP',
                    enabledBorder: const UnderlineInputBorder(
                      borderSide: BorderSide(
                        color: Color(0xffC6C6C6),
                      ),
                    ),
                    focusedBorder: const UnderlineInputBorder(
                      borderSide: BorderSide(
                        color: Color(0xffC6C6C6),
                      ),
                    ),
                  ),
                ),
                SizedBox(height: 20.h),
                TextFormField(
                  controller: jumlahKejahatanController,
                  keyboardType: TextInputType.number,
                  autofocus: true,
                  decoration: InputDecoration(
                    labelText: 'Jumlah Kejahatan',
                    labelStyle:
                        robotoSedangHitam.copyWith(fontWeight: FontWeight.bold),
                    hintText: 'Masukkan Jumlah Kejahatan',
                    enabledBorder: const UnderlineInputBorder(
                      borderSide: BorderSide(
                        color: Color(0xffC6C6C6),
                      ),
                    ),
                    focusedBorder: const UnderlineInputBorder(
                      borderSide: BorderSide(
                        color: Color(0xffC6C6C6),
                      ),
                    ),
                  ),
                ),
                SizedBox(height: 20.h),
                TextFormField(
                  keyboardType: TextInputType.number,
                  controller: jarakTkpPolresController,
                  autofocus: true,
                  decoration: InputDecoration(
                    labelText: 'Jarak TKP - Polres',
                    labelStyle:
                        robotoSedangHitam.copyWith(fontWeight: FontWeight.bold),
                    hintText: 'Masukkan Jarak TKP - Polres',
                    enabledBorder: const UnderlineInputBorder(
                      borderSide: BorderSide(
                        color: Color(0xffC6C6C6),
                      ),
                    ),
                    focusedBorder: const UnderlineInputBorder(
                      borderSide: BorderSide(
                        color: Color(0xffC6C6C6),
                      ),
                    ),
                  ),
                ),
                SizedBox(height: 20.h),
                TextFormField(
                  keyboardType: TextInputType.number,
                  controller: kController,
                  autofocus: true,
                  decoration: InputDecoration(
                    labelText: 'Masukkan Nilai K',
                    labelStyle:
                        robotoSedangHitam.copyWith(fontWeight: FontWeight.bold),
                    hintText: 'Masukkan Nilai K',
                    enabledBorder: const UnderlineInputBorder(
                      borderSide: BorderSide(
                        color: Color(0xffC6C6C6),
                      ),
                    ),
                    focusedBorder: const UnderlineInputBorder(
                      borderSide: BorderSide(
                        color: Color(0xffC6C6C6),
                      ),
                    ),
                  ),
                ),
                SizedBox(height: 12.h),
                Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    ElevatedButton(
                      onPressed: () {
                        classify();
                      },
                      child: Text(
                        'Klasifikasi',
                        style: robotoSedangHitam.copyWith(
                            color: primaryColor, fontWeight: FontWeight.bold),
                      ),
                    ),
                    SizedBox(width: 16.w),
                    ElevatedButton(
                      onPressed: () {
                        postDataHasilTesting();
                      },
                      child: Text(
                        'Simpan',
                        style: robotoSedangHitam.copyWith(
                            color: primaryColor, fontWeight: FontWeight.bold),
                      ),
                    ),
                  ],
                ),
                SizedBox(height: 12.h),
                Text('Hasil Klasifkasi: $result'),
                Text('K Tetangga Terdekat: $nearestNeighbors'),
                if (distances.isNotEmpty) ...[
                  SizedBox(height: 12.h),
                  Text('Jarak newPoint ke setiap titik:',
                      style: robotoKecilHitam),
                  for (var distance in distances)
                    Text(
                        'Jarak ke titik ${distance['index']}: ${distance['distance'].toStringAsFixed(5)}')
                ]
              ],
            ),
          ),
        );
      }),
    );
  }
}