// * Widget for recording travel distances and track conditions during excursions
// * Features:
// * - Distance tracking by transportation mode (car, foot, bicycle)
// * - Track condition assessment (good, medium, poor)
// * - Automatic validation of total distances
// * - Input validation with user feedback

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

/// Widget for managing travel distances and track conditions
/// Tracks both how the distance was covered and the quality of tracks found
class StreckeUSpurbedingungen extends StatefulWidget {
  /// Controller for distance traveled by car
  final TextEditingController kmAutoController;
  /// Controller for distance traveled on foot
  final TextEditingController kmFussController;
  /// Controller for distance traveled by bicycle
  final TextEditingController kmRadController;
  /// Controller for distance with good track conditions
  final TextEditingController spGutController;
  /// Controller for distance with medium track conditions
  final TextEditingController spMittelController;
  /// Controller for distance with poor track conditions
  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();
}

/// State class for the distance and track conditions widget
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);

    // Initialize distance values if not set
    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);

    // Initialize track condition values if not set
    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;
  //   }
  // }

  /// Validate that track condition distances don't exceed total travel distance
  /// Shows warning if track conditions total is greater than distance traveled
  void onTrackConditionsUpdated() {
    try {
      // Parse track condition distances
      double kmGood = double.parse(widget.spGutController.text);
      double kmMiddle = double.parse(widget.spMittelController.text);
      double kmBad = double.parse(widget.spSchlechtController.text);

      // Parse travel distances
      double kmAuto = double.parse(widget.kmAutoController.text);
      double kmFuss = double.parse(widget.kmFussController.text);
      double kmRad = double.parse(widget.kmRadController.text);

      // Calculate totals
      double gesConditionsKm = (kmGood + kmMiddle + kmBad);
      double gesDistanceKm = (kmAuto + kmFuss + kmRad);

      // Show warning if track conditions exceed distance
      if (gesConditionsKm > gesDistanceKm) {
        SnackBarHelper.showSnackBarMessage(context, AppLocalizations.of(context)!.bedingungenGroesserAlsStrecke);
      }

      setState(() {});
    } catch (e) {
      return;
    }
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        // Travel distance section header
        Align(
          alignment: Alignment.bottomLeft,
          child: Text(
            "${AppLocalizations.of(context)!.zurueckgelegteStrecke} (km)",
            style: Theme.of(context).textTheme.titleMedium,
          ),
        ),
        const SizedBox(height: 10),

        // Travel distance inputs
        Row(
          children: [
            // Car distance input
            Expanded(
              child: Padding(
                padding: const EdgeInsets.all(8.0),
                child: Column(
                  children: [
                    Align(
                      alignment: Alignment.bottomLeft,
                      child: Text(AppLocalizations.of(context)!.auto),
                    ),
                    TextField(
                      keyboardType: TextInputType.number,
                      controller: widget.kmAutoController,
                      onTap: () => widget.kmAutoController.selection = TextSelection(baseOffset: 0, extentOffset: widget.kmAutoController.value.text.length),
                    ),
                  ],
                ),
              ),
            ),

            // Foot distance input
            Expanded(
              child: Padding(
                padding: const EdgeInsets.all(8.0),
                child: Column(
                  children: [
                    Align(
                      alignment: Alignment.bottomLeft,
                      child: Text(AppLocalizations.of(context)!.zuFuss),
                    ),
                    TextField(
                      keyboardType: TextInputType.number,
                      controller: widget.kmFussController,
                      onTap: () => widget.kmFussController.selection = TextSelection(baseOffset: 0, extentOffset: widget.kmFussController.value.text.length),
                    ),
                  ],
                ),
              ),
            ),

            // Bicycle distance input
            Expanded(
              child: Padding(
                padding: const EdgeInsets.all(8.0),
                child: Column(
                  children: [
                    Align(
                      alignment: Alignment.bottomLeft,
                      child: Text(AppLocalizations.of(context)!.fahrrad),
                    ),
                    TextField(
                      keyboardType: TextInputType.number,
                      controller: widget.kmRadController,
                      onTap: () => widget.kmRadController.selection = TextSelection(baseOffset: 0, extentOffset: widget.kmRadController.value.text.length),
                    ),
                  ],
                ),
              ),
            ),

            const SizedBox(height: 20),
          ],
        ),

        const SizedBox(height: 20),

        // Track conditions section header
        Align(
          alignment: Alignment.bottomLeft,
          child: Text(
            "${AppLocalizations.of(context)!.spurbedingungen} (km)",
            style: Theme.of(context).textTheme.titleMedium,
          ),
        ),
        const SizedBox(height: 10,),

        // Track condition inputs
        Row(
          children: [
            // Good conditions input
            Expanded(
              child: Padding(
                padding: const EdgeInsets.all(8),
                child: Column(
                  children: [
                    Align(alignment: Alignment.bottomLeft, child: Text(AppLocalizations.of(context)!.gut)),
                    TextField(
                      keyboardType: TextInputType.number,
                      controller: widget.spGutController,
                      onTap: () => widget.spGutController.selection = TextSelection(baseOffset: 0, extentOffset: widget.spGutController.value.text.length),
                    ),
                  ],
                ),
              ),
            ),
            // Medium conditions input
            Expanded(
              child: Padding(
                padding: const EdgeInsets.all(8),
                child: Column(
                  children: [
                    Align(alignment: Alignment.bottomLeft, child: Text(AppLocalizations.of(context)!.mittel)),
                    TextField(
                      keyboardType: TextInputType.number,
                      controller: widget.spMittelController,
                      onTap: () => widget.spMittelController.selection = TextSelection(baseOffset: 0, extentOffset: widget.spMittelController.value.text.length),
                    ),
                  ],
                ),
              ),
            ),
            // Poor conditions input
            Expanded(
              child: Padding(
                padding: const EdgeInsets.all(8),
                child: Column(
                  children: [
                    Align(alignment: Alignment.bottomLeft, child: Text(AppLocalizations.of(context)!.schlecht)),
                    TextField(
                      keyboardType: TextInputType.number,
                      controller: widget.spSchlechtController,
                      onTap: () => widget.spSchlechtController.selection = TextSelection(baseOffset: 0, extentOffset: widget.spSchlechtController.value.text.length),
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      ],
    );
  }
}