import 'package:flutter/material.dart';
import 'package:fforte/l10n/app_localizations.dart';

class StreckeUSpurbedingungen extends StatefulWidget {
  final TextEditingController kmAutoController;
  final TextEditingController kmFussController;
  final TextEditingController kmRadController;
  final TextEditingController spGutController;
  final TextEditingController spMittelController;
  final TextEditingController spSchlechtController;

  const StreckeUSpurbedingungen(
      {required this.kmAutoController,
      required this.kmFussController,
      required this.kmRadController,
      required this.spGutController,
      required this.spMittelController,
      required this.spSchlechtController,
      super.key});

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

class StreckeUSpurbedingungenState extends State<StreckeUSpurbedingungen> {
  // vars for percent text fields
  String carPercent = "0";
  String footPercent = "0";
  String bikePercent = "0";

  String goodPercent = "0";
  String middlePercent = "0";
  String badPercent = "0";

  String totalKm = "0";

  @override
  void initState() {
    super.initState();
    // Travle Distance 
    widget.kmAutoController.addListener(onDistanceTravledUpdated);
    widget.kmFussController.addListener(onDistanceTravledUpdated);
    widget.kmRadController.addListener(onDistanceTravledUpdated);

    // if one of the values is "" the excursion is edited for the first time. On which value i check here is unnecessarry
    if (widget.kmAutoController.text == "") {
      widget.kmAutoController.text = "0";
      widget.kmFussController.text = "0";
      widget.kmRadController.text = "0";
    }

    // Track Conditions
    widget.spGutController.addListener(onTrackConditionsUpdated);
    widget.spMittelController.addListener(onTrackConditionsUpdated);
    widget.spSchlechtController.addListener(onTrackConditionsUpdated);

    // if one of the values is "" the excursion is edited for the first time. On which value i check here is unnecessarry
    if (widget.spGutController.text == "") {
      widget.spGutController.text = "0";
      widget.spMittelController.text = "0";
      widget.spSchlechtController.text = "0";
    }
  }


  void onDistanceTravledUpdated() {
    try {
      double kmAuto = double.parse(widget.kmAutoController.text);
      double kmFuss = double.parse(widget.kmFussController.text);
      double kmRad = double.parse(widget.kmRadController.text);
      double gesKm = (kmAuto + kmFuss + kmRad);

      if (gesKm == 0) {
        carPercent = "0";
        footPercent = "0";
        bikePercent = "0";
      } else {
        carPercent = (kmAuto / gesKm * 100).round().toString();
        footPercent = (kmFuss / gesKm * 100).round().toString();
        bikePercent = (kmRad / gesKm * 100).round().toString();
        totalKm = gesKm.toString();
      }
      setState(() {});
    } catch (e) {
      return;
    }
  }

  void onTrackConditionsUpdated() {
    try {
      double kmGood = double.parse(widget.spGutController.text);
      double kmMiddle = double.parse(widget.spMittelController.text);
      double kmBad = double.parse(widget.spSchlechtController.text);
      double gesKm = (kmGood + kmMiddle + kmBad);

      if (gesKm == 0) {
        goodPercent = "0";
        middlePercent = "0";
        badPercent = "0";
      } else {
        goodPercent = (kmGood / gesKm * 100).round().toString();
        middlePercent = (kmMiddle / gesKm * 100).round().toString();
        badPercent = (kmBad / gesKm * 100).round().toString();
      }
      setState(() {});
    } catch (e) {
      return;
    }
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        Align(
            alignment: Alignment.bottomLeft,
            child: Text(
              AppLocalizations.of(context)!.zurueckgelegteStrecke,
              style: Theme.of(context).textTheme.titleMedium,
            )),
        Row(
          children: [
            Expanded(child: Text(AppLocalizations.of(context)!.auto)),
            Expanded(
                child: TextField(
              keyboardType: TextInputType.number,
              controller: widget.kmAutoController,
            )),
            Expanded(child: Center(child: Text("="))),
            Expanded(child: Center(child: Text(carPercent))),
            Expanded(child: Center(child: Text("%"))),
          ],
        ),
        Row(
          children: [
            Expanded(child: Text(AppLocalizations.of(context)!.zuFuss)),
            Expanded(
                child: TextField(
                    keyboardType: TextInputType.number,
                    controller: widget.kmFussController)),
            Expanded(child: Center(child: Text("="))),
            Expanded(child: Center(child: Text(footPercent))),
            Expanded(child: Center(child: Text("%"))),
          ],
        ),
        Row(
          children: [
            Expanded(child: Text(AppLocalizations.of(context)!.fahrrad)),
            Expanded(
                child: TextField(
                    keyboardType: TextInputType.number,
                    controller: widget.kmRadController)),
            Expanded(child: Center(child: Text("="))),
            Expanded(child: Center(child: Text(bikePercent))),
            Expanded(child: Center(child: Text("%"))),
          ],
        ),
        const SizedBox(
          height: 20,
        ),
        Row(
          children: [
            Expanded(
              flex: 1,
              child: Text(AppLocalizations.of(context)!.gesamt),
            ),
            Expanded(
              flex: 3,
              child: Align(
                alignment: Alignment.bottomLeft,
                child: Text(totalKm),
              ),
            )
          ],
        ),
        const SizedBox(
          height: 20,
        ),
        Align(
          alignment: Alignment.bottomLeft,
          child: Text(
            AppLocalizations.of(context)!.spurbedingungen,
            style: Theme.of(context).textTheme.titleMedium,
          ),
        ),
        Row(
          children: [
            Expanded(child: Text(AppLocalizations.of(context)!.gut)),
            Expanded(
                child: TextField(
                    keyboardType: TextInputType.number,
                    controller: widget.spGutController)),
            Expanded(child: Center(child: Text("="))),
            Expanded(child: Center(child: Text(goodPercent))),
            Expanded(child: Center(child: Text("%"))),
          ],
        ),
        Row(
          children: [
            Expanded(child: Text(AppLocalizations.of(context)!.mittel)),
            Expanded(
                child: TextField(
                    keyboardType: TextInputType.number,
                    controller: widget.spMittelController)),
            Expanded(child: Center(child: Text("="))),
            Expanded(child: Center(child: Text(middlePercent))),
            Expanded(child: Center(child: Text("%"))),
          ],
        ),
        Row(
          children: [
            Expanded(child: Text(AppLocalizations.of(context)!.schlecht)),
            Expanded(
                child: TextField(
              keyboardType: TextInputType.number,
              controller: widget.spSchlechtController,
            )),
            Expanded(child: Center(child: Text("="))),
            Expanded(child: Center(child: Text(badPercent))),
            Expanded(child: Center(child: Text("%"))),
          ],
        ),
      ],
    );
  }
}