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

import 'package:diplomaticquarterapp/core/model/labs/patient_lab_orders.dart';
import 'package:diplomaticquarterapp/core/viewModels/medical/labs_view_model.dart';
import 'package:diplomaticquarterapp/core/viewModels/project_view_model.dart';
import 'package:diplomaticquarterapp/pages/base/base_view.dart';
import 'package:diplomaticquarterapp/uitl/app_toast.dart';
import 'package:diplomaticquarterapp/uitl/gif_loader_dialog_utils.dart';
import 'package:diplomaticquarterapp/uitl/translations_delegate_base.dart';
import 'package:diplomaticquarterapp/widgets/buttons/defaultButton.dart';
import 'package:diplomaticquarterapp/widgets/data_display/medical/LabResult/laboratory_result_widget.dart';
import 'package:diplomaticquarterapp/widgets/others/app_scaffold_widget.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:open_filex/open_filex.dart';
import 'package:path_provider/path_provider.dart';
import 'package:provider/provider.dart';

class LaboratoryResultPage extends StatefulWidget {
  final PatientLabOrders patientLabOrders;

  LaboratoryResultPage({Key key, this.patientLabOrders});

  @override
  _LaboratoryResultPageState createState() => _LaboratoryResultPageState();
}

class _LaboratoryResultPageState extends State<LaboratoryResultPage> {
  @override
  Widget build(BuildContext context) {
    ProjectViewModel projectViewModel = Provider.of(context);
    return BaseView<LabsViewModel>(
      onModelReady: (model) => model.getLaboratoryResult(
          invoiceNo: widget.patientLabOrders.invoiceNo,
          clinicID: widget.patientLabOrders.clinicID,
          projectID: widget.patientLabOrders.projectID,
          orderNo: widget.patientLabOrders.orderNo,
          setupID: widget.patientLabOrders.setupID),
      builder: (_, model, w) => AppScaffold(
        isShowAppBar: true,
        appBarTitle: widget.patientLabOrders.doctorName,
        baseViewModel: model,
        showNewAppBar: true,
        showNewAppBarTitle: true,
        backgroundColor: Color(0xffF8F8F8),
        body: SingleChildScrollView(
          child: Column(
            children: [
              ListView.builder(
                physics: BouncingScrollPhysics(),
                shrinkWrap: true,
                padding: EdgeInsets.only(bottom: 12),
                itemBuilder: (context, index) => LaboratoryResultWidget(
                  onTap: () async {
                    GifLoaderDialogUtils.showMyDialog(context);
                    await model.sendLabReportEmail(patientLabOrder: widget.patientLabOrders, mes: TranslationBase.of(context).sendSuc, userObj: projectViewModel.user);
                    GifLoaderDialogUtils.hideDialog(context);
                  },
                  billNo: widget.patientLabOrders.invoiceNo,
                  // details: model.patientLabSpecialResult[index].resultDataHTML,
                  details: model.patientLabSpecialResult.isEmpty ? null : getSpecialResults(model),
                  orderNo: widget.patientLabOrders.orderNo,
                  patientLabOrder: widget.patientLabOrders,
                ),
                itemCount: 1,
              ),
              SizedBox(
                height: 120.0,
              )
            ],
          ),
        ),
        bottomSheet: Container(
          color: Colors.white,
          height: MediaQuery.of(context).size.height * 0.081,
          width: double.infinity,
          padding: EdgeInsets.all(12.0),
          child: Column(
            children: <Widget>[
              Container(
                width: MediaQuery.of(context).size.width * 0.9,
                child: DefaultButton(
                  TranslationBase.of(context).downloadReport,
                  () async {
                    GifLoaderDialogUtils.showMyDialog(context);
                    await model.sendLabReportEmail(patientLabOrder: widget.patientLabOrders, mes: TranslationBase.of(context).sendSuc, userObj: projectViewModel.user, isDownload: true);
                    GifLoaderDialogUtils.hideDialog(context);
                    try {
                      String path = await _createFileFromString(model.labReportPDF, "pdf");
                      OpenFilex.open(path);
                    } catch (ex) {
                      AppToast.showErrorToast(message: "Cannot open file.");
                    }
                  },
                  textColor: Colors.white,
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }

  Future<String> _createFileFromString(String encodedStr, String ext) async {
    Uint8List bytes = base64.decode(encodedStr);
    String dir = (await getApplicationDocumentsDirectory()).path;
    File file = File("$dir/" + DateTime.now().millisecondsSinceEpoch.toString() + "." + ext);
    await file.writeAsBytes(bytes);
    return file.path;
  }

  String getSpecialResults(LabsViewModel model) {
    String labResults = "";
    model.patientLabSpecialResult.forEach((element) {
      if (element.resultDataHTML != null) {
        labResults += (element.resultDataHTML + "<br/> <br/>");
      } else {
        labResults += ("<h6>No Result Available</h6>");
      }
    });
    return labResults;
  }
}