import 'dart:convert';
import 'dart:io';

import 'package:discover_module/custom_widget/floating_btn.dart';
import 'package:discover_module/custom_widget/show_alert.dart';
import 'package:discover_module/ui_screen/profile.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/foundation.dart' show kIsWeb;
import 'package:flutter/material.dart';
import 'package:hive_flutter/hive_flutter.dart';
import 'package:open_file/open_file.dart';
import 'package:path_provider/path_provider.dart';
import 'package:syncfusion_flutter_xlsio/xlsio.dart';
import 'package:universal_html/html.dart' show AnchorElement;

class Ranking extends StatefulWidget {
  @override
  State<Ranking> createState() => _RankingState();
}

class _RankingState extends State<Ranking> {
  late _DataSource _dataSource; // Instance variable for _DataSource

  @override
  void initState() {
    super.initState();
    print("hii_initState");
    _dataSource = _DataSource(context); // Initialize _DataSource
  }

  @override
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: ListView(
        padding: const EdgeInsets.all(3),
        children: [
          PaginatedDataTable(
            header: const Text(
              'HCP RANKING',
              style: TextStyle(
                  fontWeight: FontWeight.bold,
                  fontSize: 18.0,
                  fontStyle: FontStyle.normal),
            ),
            showFirstLastButtons: true,
            showEmptyRows: false,
            showCheckboxColumn: true,
            actions: [
              IconButton(
                  onPressed: () {
                    _createExcel();
                  },
                  icon: const Icon(Icons.download,
                      color: Color.fromARGB(255, 0, 71, 132)))
            ],
            rowsPerPage: 5,
            columns: const [
              DataColumn(
                  label: FittedBox(
                fit: BoxFit.scaleDown,
                child: Text('Name',
                    style: TextStyle(
                        fontWeight: FontWeight.bold,
                        fontSize: 14.0,
                        fontStyle: FontStyle.normal)),
              )),
              DataColumn(
                  label: FittedBox(
                fit: BoxFit.scaleDown,
                child: Text('Tier',
                    style: TextStyle(
                        fontWeight: FontWeight.bold,
                        fontSize: 14.0,
                        fontStyle: FontStyle.normal)),
              )),
              DataColumn(
                  label: FittedBox(
                fit: BoxFit.scaleDown,
                child: Text('Rank',
                    style: TextStyle(
                        fontWeight: FontWeight.bold,
                        fontSize: 14.0,
                        fontStyle: FontStyle.normal)),
              )),
              DataColumn(
                  label: FittedBox(
                fit: BoxFit.scaleDown,
                child: Text('Score',
                    style: TextStyle(
                        fontWeight: FontWeight.bold,
                        fontSize: 14.0,
                        fontStyle: FontStyle.normal)),
              )),
              DataColumn(
                  label: FittedBox(
                fit: BoxFit.scaleDown,
                child: Text('Event',
                    style: TextStyle(
                        fontWeight: FontWeight.bold,
                        fontSize: 14.0,
                        fontStyle: FontStyle.normal)),
              )),
              DataColumn(
                  label: FittedBox(
                fit: BoxFit.scaleDown,
                child: Text('Affliations',
                    style: TextStyle(
                        fontWeight: FontWeight.bold,
                        fontSize: 14.0,
                        fontStyle: FontStyle.normal)),
              )),
              DataColumn(
                  label: FittedBox(
                fit: BoxFit.scaleDown,
                child: Text('Publications',
                    style: TextStyle(
                        fontWeight: FontWeight.bold,
                        fontSize: 14.0,
                        fontStyle: FontStyle.normal)),
              )),
              DataColumn(
                  label: FittedBox(
                fit: BoxFit.scaleDown,
                child: Text('Trails',
                    style: TextStyle(
                        fontWeight: FontWeight.bold,
                        fontSize: 14.0,
                        fontStyle: FontStyle.normal)),
              )),
            ],
            source: _dataSource,
          ),
        ],
      ),
      floatingActionButton: Visibility(
          visible: true,
          child: FloatingBtn(
            icon: Icons.add,
            title: "add",
            onTap: () {
              List<String> selectedRowIds = _dataSource.getSelectedRowIds();
              // Do something with selectedRowIds
              print('Selected Row IDstrndsss: $selectedRowIds');

              for (int i = 0; i < selectedRowIds.length; i++) {
                print("checking_value_istrends: ${selectedRowIds[i]}");

                // _contactbox.put(i, selectedRowIds[i]);

                HiveFunctions.createUser({
                  "name": selectedRowIds[i],
                  "org": "Azienda Ospedaliera di Padova",
                  "adrr": "Via Giustiniani 2, Padova, Veneto 35128, Italy",
                  "phone": "+390498212410X12",
                  "Pphone": "+390498212410X12",
                  "email": "Gerosa,Gino@gmail.com",
                  "affno": "75",
                  "eveno": "8",
                  "pubno": "251",
                  "trailno": "1"
                });
              }
              showDialog(
                  context: context,
                  builder: (_) {
                    return Alert(data: "User Added Successfully");
                  });
            },
          )),
    );
  }

  Future<void> _createExcel() async {
//Create an Excel document.

    //Creating a workbook.
    final Workbook workbook = Workbook();
    //Accessing via index
    final Worksheet sheet = workbook.worksheets[0];

    // sheet.getRangeByName('A1').setText('pooja');
    /////////////////////////////////////////////////////////////////////////////

    sheet.getRangeByName('A1').setText('Name');
    sheet.getRangeByName('A2').setText('Gerosa, Gino');
    sheet.getRangeByName('A3').setText('Gerosa, Gino');
    sheet.getRangeByName('A4').setText('Gerosa, Gino');

    final Style headingStyle = workbook.styles.add('HeadingStyle');
    headingStyle.bold = true;
    headingStyle.hAlign = HAlignType.center;
    headingStyle.wrapText = true;
    sheet.getRangeByName('B1').setText('Tier');
    sheet.getRangeByName('B2').setText("Tier1");
    sheet.getRangeByName('B3').setText("Tier1");
    sheet.getRangeByName('B4').setText("Tier1");
    sheet.getRangeByName('C1').setText('Rank');
    sheet.getRangeByName('C2').setNumber(1);
    sheet.getRangeByName('C3').setNumber(1);
    sheet.getRangeByName('C4').setNumber(1);
    sheet.getRangeByName('D1').setText('Score');
    sheet.getRangeByName('D2').setNumber(0);
    sheet.getRangeByName('D3').setNumber(0);
    sheet.getRangeByName('D4').setNumber(0);

    sheet.getRangeByName('E1').setText('Event');
    sheet.getRangeByName('E2').setNumber(0);
    sheet.getRangeByName('E3').setNumber(0);
    sheet.getRangeByName('E4').setNumber(0);

    sheet.getRangeByName('F1').setText('Affiliations');
    sheet.getRangeByName('F2').setNumber(0);
    sheet.getRangeByName('F3').setNumber(0);
    sheet.getRangeByName('F4').setNumber(0);

    sheet.getRangeByName('G1').setText('Publications');
    sheet.getRangeByName('G2').setNumber(0);
    sheet.getRangeByName('G3').setNumber(0);
    sheet.getRangeByName('G4').setNumber(0);

    sheet.getRangeByName('H1').setText('Trails');
    sheet.getRangeByName('H2').setNumber(0);
    sheet.getRangeByName('H3').setNumber(0);
    sheet.getRangeByName('H4').setNumber(0);

//Defining a global style with properties.
    final Style globalStyle = workbook.styles.add('globalStyle');
    //globalStyle.backColor = '#37D8E9';
    globalStyle.fontName = 'Times New Roman';
    globalStyle.fontSize = 12;
    // globalStyle.fontColor = '#C67878';
    globalStyle.fontColor = '#C67878';

    globalStyle.italic = true;
    globalStyle.bold = true;
    globalStyle.underline = true;
    globalStyle.wrapText = true;
    globalStyle.hAlign = HAlignType.center;
    globalStyle.vAlign = VAlignType.center;
    globalStyle.borders.all.lineStyle = LineStyle.thick;
    // globalStyle.borders.all.color = '#9954CC';

    final Style globalStyle1 = workbook.styles.add('globalStyle1');
    globalStyle1.fontSize = 14;
    //   globalStyle1.fontColor = '#362191';
    globalStyle1.hAlign = HAlignType.center;
    globalStyle1.vAlign = VAlignType.center;
    globalStyle1.borders.bottom.lineStyle = LineStyle.thin;
    //globalStyle1.borders.bottom.color = '#829193';
    globalStyle1.numberFormat = '0.00';

//Apply GlobalStyle
//     sheet.getRangeByName('A1:D1').cellStyle = globalStyle;

// //Apply GlobalStyle1
//     sheet.getRangeByName('B2:D4').cellStyle = globalStyle1;
    //////////////////////////////////////////////////////////////////////////////

    final List<int> bytes = workbook.saveSync();

    print("hii");

    if (kIsWeb) {
      AnchorElement(
          href:
              'data:application/octet-stream;charset=utf-16le;base64,${base64.encode(bytes)}')
        ..setAttribute('download', 'Output.xlsx')
        ..click();
    } else {
      // final String path = (await getApplicationDocumentsDirectory()).path;
      //final directory = await getExternalStorageDirectory();

      Directory? directory = Platform.isAndroid
          ? await getExternalStorageDirectory()
          : await getApplicationDocumentsDirectory();

      final path = directory!.path;

      final String filename =
          Platform.isWindows ? '$path\\Output.xlsx' : '$path/Output.xlsx';
      // final String filename = '$path/Output.xlsx';
      final File file = File(filename);
      await file.writeAsBytes(bytes, flush: true);
      OpenFile.open(filename);
    }
  }
}

class HiveFunctions {
  //  String userHiveBox="User Box";
  // Box which will use to store the things
  static final _contactbox = Hive.box("mycontact");

  static createUser(Map data) {
    _contactbox.add(data);
  }

  static List getAllUsers() {
    final data = _contactbox.keys.map((key) {
      final value = _contactbox.get(key);
      print("Checking_Name : $value");
      return {
        "name": value["name"],
        "org": value["org"],
        "adrr": value["adrr"],
        "phone": value["phone"],
        "Pphone": value["Pphone"],
        "email": value["email"],
        "affno": value["affno"],
        "eveno": value["eveno"],
        "pubno": value["pubno"],
        "trailno": value["trailno"]
      };
    }).toList();

    return data.reversed.toList();
  }

  static List getindexUsers() {
    final data = _contactbox.keys.map((key) {
      final value = _contactbox.get(key);
      print("Checking_Name : $value");
      return {
        "name": value["name"],
        "org": value["org"],
        "adrr": value["adrr"],
        "phone": value["phone"],
        "Pphone": value["Pphone"],
        "email": value["email"],
        "affno": value["affno"],
        "eveno": value["eveno"],
        "pubno": value["pubno"],
        "trailno": value["trailno"]
      };
    }).toList();

    return data.reversed.toList();
  }
}

class _Row {
  _Row(this.identifier, this.valueA, this.valueC, this.valueD, this.valueE,
      this.valueF, this.valueG, this.valueH, this.valueI);

  final int identifier;
  final String valueA;
  final String valueC;
  final String valueD;
  final String valueE;
  final String valueF;
  final String valueG;
  final String valueH;
  final String valueI;

  bool selected = false;
}

class _DataSource extends DataTableSource {
  final BuildContext context;
  late List<_Row> _rows;
  // late List<int> _selectedRowsIndexes = []; // List to track selected rows
  final List<String> _selectedRowIds = [];

  _DataSource(this.context) {
    _rows = <_Row>[
      for (int i = 0; i < 20; i++)
        _Row(i, 'Gerosa, Gino', 'Tier1', '1', '0', '0', '0', '0', '0'),
    ];
    //}
  }

  List<String> getSelectedRowIds() {
    return _selectedRowIds; // Return a copy to prevent direct modification
  }

  int _selectedCount = 0;

  @override
  DataRow? getRow(int index) {
    assert(index >= 0);
    if (index >= _rows.length) return null;
    final row = _rows[index];
    return DataRow.byIndex(
      index: index,
      selected: row.selected,
      onSelectChanged: (value) {
        if (row.selected != value) {
          //  _selectedCount += value! ? 1 : -1;
          // assert(_selectedCount >= 0);
          row.selected = value!;

          if (value) {
            print("Selected");
            _selectedRowIds.add(row.valueA); // Add the row ID to the list
            print("Selected_selectedRowIds :$_selectedRowIds");
          } else {
            _selectedRowIds
                .remove(row.valueA); // Remove the row ID from the list
          }
          notifyListeners();

          print("Selectedddd_is $value");
          print("Selectedddd_value ${row.valueA}");
        }
      },
      cells: [
        DataCell(
          Text(row.valueA),
          onTap: () {
            print("hiii Data cell tap ${row.valueA}");

            Navigator.push(
                context, MaterialPageRoute(builder: (context) => Profile()));
          },
        ),
        DataCell(Text(row.valueC)),
        DataCell(Text(row.valueD.toString())),
        DataCell(Text(row.valueE)),
        DataCell(Text(row.valueF)),
        DataCell(Text(row.valueG)),
        DataCell(Text(row.valueH)),
        DataCell(Text(row.valueI)),
      ],
    );
  }

  @override
  int get rowCount => _rows.length;

  @override
  bool get isRowCountApproximate => false;

  @override
  int get selectedRowCount => _selectedCount;
}