import 'dart:convert';

import 'package:cssd/models/item_model.dart';
import 'package:cssd/models/package_model.dart';
import 'package:flutter_downloader/flutter_downloader.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:path_provider/path_provider.dart';
import 'package:cssd/utils/scan.dart';

import '../config/urls.dart';
import '../config/user.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;

class PackageProvider extends ChangeNotifier {
  List<ItemResultObject>? filteredItems;

  // List<Map<String, dynamic>> itemVals = [];
  List<String> itemVals = [];

  List<TextEditingController> itemValues = [];
  String initialItemValue = '';
  int curItemVal = 1;

  resetItemVals() {
    itemVals = [];
    itemValues = [];
    initialItemValue = '';
    curItemVal = 1;
  }

  addItemVal() {
    curItemVal += 1;
    TextEditingController lbl = new TextEditingController();
    lbl.text = '';
    itemValues.add(lbl);
    notifyListeners();
  }

  removeItemVal() {
    curItemVal -= 1;
    TextEditingController lbl = new TextEditingController();
    lbl.text = initialItemValue;
    itemValues.removeLast();
    notifyListeners();
  }

  bool isClear = false;

  setClear(int index) {
    isClear = true;
    itemValues[index].clear();
    notifyListeners();
  }

  reSetClear() {
    isClear = false;
    notifyListeners();
  }

  changeItemVal(String value, int index) {
    for (var item in filteredItems!) {
      if (item.udi_name == value) {
        itemValues[index].text = item.id;
      }
    }
    notifyListeners();
  }

  Future<bool> changeStatus(String id, String value) async {
    print(id);
    var response = await http.post(
      Uri.parse(Url.changePackageStatus(id)),
      body: json.encode({'status': value}),
      headers: {
        'Authorization': User.token,
        'X-Requested-With': 'XMLHttpRequest',
        "Content-Type": "application/json",
        "Accept": "application/json"
      },
    );

    var packageData = json.decode(response.body);

    try {
      if (packageData['data']['transfers']['status'] == 'approved') {
        return true;
      } else {
        return false;
      }
    } catch (e) {
      return false;
    }
  }

  var isCurrectItem = false;

  changeItemValByScan(String value, int index) async {
    filteredItems?.forEach((item) {
      if (item.id == value || item.udi == value) {
        itemValues[index].text = "${item.name} - ${item.udi}";
        isCurrectItem = true;
      }
      print("item value : ${itemValues[index].text}");
    });
    notifyListeners();
  }

  void scanItem(isEnabled, context, index) async {
    await scan().then(
      (String result) async {
        if (result == 'cancel') {
          if (index != 0) await removeItemVal();
          print('cancel');
        } else if (result == 'error') {
          print('error');
        } else if (result == 'access') {
          print('access');
        } else {
          await changeItemValByScan(result, index);
          isEnabled = false;
          print("currect item : ${isCurrectItem}");
          if (isCurrectItem) {
            Fluttertoast.showToast(
              msg: "Item added.",
              toastLength: Toast.LENGTH_SHORT,
              gravity: ToastGravity.BOTTOM,
            );
            scanItem(isEnabled, context, index += 1);
            await addItemVal();
            isCurrectItem = false;
          } else {
            Fluttertoast.showToast(
              msg: "No item exists,try again!",
              toastLength: Toast.LENGTH_SHORT,
              gravity: ToastGravity.BOTTOM,
            );
            scanItem(isEnabled, context, index);
          }
        }
      },
    );
  }

  String searchBoxValue = '';
  bool filterOn = false;
  List<PackageResultObject>? items;
  List<PackageResultObject>? originalItems;

  PackageDetailObject? result;
  PackageFilterObject? filters = PackageFilterObject(
    id: '',
    hospital: '',
    name: '',
    // udi: '',
  );
  int pageNumber = 1;

  void resetPageNumber() => pageNumber = 1;
  bool isloading = false;

  void resetLoading() {
    isloading = false;
    notifyListeners();
  }

  void setLoading() {
    isloading = true;
    notifyListeners();
  }

  bool isloadingButton = false;

  void resetLoadingButton() {
    isloadingButton = false;
    // notifyListeners();
  }

  void setLoadingButton() {
    isloadingButton = true;
    notifyListeners();
  }

  Future<List<Map<String, String>>> getHospitalsFilters() async {
    var response = await http.get(
      Uri.parse(Url.filterItems),
      headers: {
        'Authorization': User.token,
      },
    );
    List<Map<String, String>> result = [];
    var filterData = json.decode(response.body);
    for (var hospital in filterData['data']['MedicalCenters']) {
      result.add({
        'name': hospital['name'].toString(),
        'id': hospital['id'].toString()
      });
    }
    return result;
  }

  Future<List<String>> getItemFilters() async {
    var response = await http.get(
      Uri.parse(Url.itemItems),
      headers: {
        'Authorization': User.token,
      },
    );
    List<String> result = [];
    filteredItems = [];
    var filterData = json.decode(response.body);
    for (var item in filterData['data']) {
      result.add("${item['name']} - ${item['udi'] != null ? item['udi'] : ''}");
      // result.add(item['id'].toString());
      filteredItems!.add(
        ItemResultObject(
          name: item['name'],
          id: item['id'].toString(),
          size: item['size'].toString(),
          userName: item['user'] != null ? item['user']['name'] : '',
          status: item['status'],
          udi: item['udi'] != null ? item['udi'] : '',
          udi_name:
              "${item['name']} - ${item['udi'] != null ? item['udi'] : ''}",
        ),
      );
    }
    if (result.isEmpty) result.add("");
    itemVals = result;
    initialItemValue = itemVals[0];
    TextEditingController newLbl = new TextEditingController();
    newLbl.text = "";
    itemValues.add(newLbl);
    notifyListeners();
    return result;
  }

  Future<void> createPackageResult(
    name,
    // udi,
    items,
    note,
  ) async {
    List<Map<String, dynamic>> itemsIncluded = [];
    for (var item in items) {
      itemsIncluded.add({'id': item});
    }
    var response = await http.post(
      Uri.parse(Url.createPackageResult),
      body: json.encode(
        {
          'note': note,
          'items': itemsIncluded,
          'name': name,
          // 'package_id': udi,
        },
      ),
      headers: {
        'Authorization': User.token,
        'X-Requested-With': 'XMLHttpRequest',
        "Content-Type": "application/json",
        "Accept": "application/json"
      },
    );

    print("paccc body : ${response.body}");
    print("paccc status : ${response.statusCode}");
  }

  Future<void> updatePackageResult(
    id,
    name,
    // udi,
    description,
    items,
  ) async {
    // List<Map<String, Object>> items = [];
    // for (var item in items) {
    //   items.add({'name': '', 'id': item});
    // }
    print({
      'note': description,
      'name': name,
      // 'package_id': udi,
      'items': items,
    });
    var response = await http.put(Uri.parse(Url.updatePackageResult(id)),
        body: json.encode(
          {
            'name': name,
            // 'package_id': udi,
            'note': description,
            'items': items,
          },
        ),
        headers: {
          'Authorization': User.token,
          'X-Requested-With': 'XMLHttpRequest',
          "Content-Type": "application/json",
          "Accept": "application/json"
        });

    print(response.body);
  }

  Future<bool> removePackages(String id) async {
    var response = await http.post(Uri.parse(Url.removePackages(id)), body: {
      '_method': 'delete'
    }, headers: {
      'Authorization': User.token,
    });

    if (response.statusCode == 200) {
      items!.removeWhere((item) {
        return item.id.toString() == id;
      });
    }

    notifyListeners();
    return true;
  }

  void setFilters(
    id,
    name,
    hospital,
    // udi,
  ) {
    pageNumber = 1;
    filters = PackageFilterObject(
      id: id,
      name: name,
      hospital: hospital,
      // udi: udi,
    );
    if (filters!.id == '' && filters!.name == '' && filters!.hospital == '') {
      filterOn = false;
    } else {
      filterOn = true;
    }
    // notifyListeners();
  }

  Future<void> search(String value) async {
    items = [];
    searchBoxValue = value;
    var response = await http.get(
      Uri.parse(Url.searchPackages(value)),
      headers: {
        'Authorization': User.token,
      },
    );

    var testResultData = json.decode(response.body);
    for (var item in testResultData['data']) {
      List<String> itemsId =
          (item['items'] as List).map((item) => item['id'].toString()).toList();
      items!.add(
        PackageResultObject(
          createdAt: item['created_at'],
          id: item['id'].toString(),
          name: item['name'],
          status: item['status'],
          userName: item['user']['name'],
          itemsId: itemsId,
        ),
      );
    }
    resetLoading();
    notifyListeners();
  }

  Future<void> getPackageResults() async {
    String url = Url.packageResults(pageNumber);
    if (filterOn) {
      // originalItems = [];
      // items = [];
      if (filters!.id != '') {
        url += '&package_id=${filters!.id}';
      }
      if (filters!.name != '') {
        url += '&name=${filters!.name}';
      }
      if (filters!.hospital != '') {
        url += '&medical_center_id=${filters!.hospital}';
      }
      // if (filters!.udi != '') {
      //   url += '&package_id=${filters!.udi}';
      // }
    }
    var response = await http.get(
      Uri.parse(url),
      headers: {
        'Authorization': User.token,
      },
    );

    var testResultData = json.decode(response.body);
    if (pageNumber == 1) {
      originalItems = [];
    }

    for (var item in testResultData['data']) {
      List<String> itemsId =
          (item['items'] as List).map((item) => item['id'].toString()).toList();
      originalItems!.add(
        PackageResultObject(
          createdAt: item['created_at'],
          id: item['id'].toString(),
          name: item['name'],
          status: item['status'],
          userName: item['user']['name'],
          itemsId: itemsId,
        ),
      );
    }
    items = originalItems;
    pageNumber += 1;
    // search('');
    notifyListeners();
  }

  Future<PackageDetailObject> showPackageResult(String id) async {
    var response =
        await http.get(Uri.parse(Url.getPackageResult(id)), headers: {
      'Authorization': User.token,
    });
    print(response.statusCode);
    print("body : ${response.body}");
    if (response.statusCode != 200) {
      return PackageDetailObject(
          id: 'null',
          name: 'null',
          description: 'null',
          createDate: '2020-07-14 13:50:42',
          hospitalName: 'null',
          // udi: 'null',
          items: [],
          userName: 'null',
          userCreator: 'null',
          status: 'null');
    }
    var data = json.decode(response.body)['data'];
    List<String> itemsList = [];
    if (data['items'] != null) {
      for (var item in data['items']) {
        itemsList.add("${item['name']} - ${item['udi']}");
      }
    }
    print(data);
    result = PackageDetailObject(
        id: data['id'].toString(),
        name: data['name'] != null ? data['name'] : '',
        description: data['note'] != null ? data['note'] : '',
        // udi: data['package_id'] != null ? data['package_id'] : '',
        createDate: data['created_at'] != null ? data['created_at'] : '',
        hospitalName:
            data['user'] != null ? data['user']['medical_center']['name'] : '',
        userName: data['user'] != null ? data['user']['name'] : '',
        userCreator: data['creator'] != null ? data['creator']['name'] : '',
        items: itemsList,
        status: data['status']);
    return result!;
  }

  Future<bool> exportPackages() async {
    var response = await http.get(Uri.parse(Url.exportPackages), headers: {
      'Authorization': User.token,
    });
    var responseData = json.decode(response.body);
    if (response.statusCode == 200 &&
        responseData['message']['title'] == "Success") {
      final baseStorage = await getExternalStorageDirectory();
      final taskId = await FlutterDownloader.enqueue(
        url: responseData['data']['url'].toString(),
        savedDir: baseStorage!.path,
        showNotification: true,
        openFileFromNotification: true,
        saveInPublicStorage: true,
        fileName: "Packages " + DateTime.now().toString() + ".xlsx",
      );
      print(taskId);
    }
    return true;
  }
}