import 'package:flutter/material.dart';
import 'package:manager_api_new/api.dart';
import 'package:manager_app/constants.dart';
import 'package:manager_app/l10n/app_localizations.dart';
import 'package:manager_app/Components/check_input_container.dart';
import 'package:manager_app/Components/multi_string_input_container.dart';
import 'package:manager_app/Components/number_stepper_field.dart';
import 'package:manager_app/Components/resource_input_container.dart';
import 'package:manager_app/Components/section_card.dart';
import '../progression_mode.dart';

/// Les champs propres au parcours, sans son contenant ni sa liste d'étapes.
///
/// Le DTO est modifié en place ; `onChanged` prévient l'hôte, à charge pour lui
/// de se reconstruire et de déclencher l'enregistrement.
class ParcoursFields extends StatelessWidget {
  const ParcoursFields({
    Key? key,
    required this.path,
    required this.onChanged,
  }) : super(key: key);

  final GuidedPathDTO path;
  final VoidCallback onChanged;

  /// Réécrit une liste de traductions en conservant la ressource déjà associée
  /// à chaque langue : `MultiStringInputContainer` ne manipule que le texte.
  List<TranslationAndResourceDTO> _mergeResources(
    List<TranslationDTO> values,
    List<TranslationAndResourceDTO>? previous,
  ) {
    return values.map((t) {
      final prev = (previous ?? []).firstWhere(
        (e) => e.language == t.language,
        orElse: () => TranslationAndResourceDTO(),
      );
      return TranslationAndResourceDTO(
        language: t.language,
        value: t.value,
        resourceId: prev.resourceId,
        resource: prev.resource,
      );
    }).toList();
  }

  @override
  Widget build(BuildContext context) {
    final l = AppLocalizations.of(context)!;
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        ResourceInputContainer(
          label: l.imageLabel,
          color: kPrimaryColor,
          initialValue: path.imageResourceId,
          onChanged: (resourceDTO) {
            path.imageResourceId = resourceDTO.id;
            onChanged();
          },
        ),
        SizedBox(height: kSpace5),
        Row(
          children: [
            Expanded(
              child: MultiStringInputContainer(
                label: l.titleColonLabel,
                modalLabel: l.pathTitleLabel,
                initialValue: path.title ?? [],
                onGetResult: (val) {
                  path.title = val;
                  onChanged();
                },
                maxLines: 1,
                isTitle: true,
                isHTML: true,
                showPreview: true,
              ),
            ),
            SizedBox(width: kSpace7),
            Expanded(
              child: MultiStringInputContainer(
                label: l.descriptionColonLabel,
                modalLabel: l.pathDescriptionLabel,
                initialValue: path.description ?? [],
                onGetResult: (val) {
                  path.description = val;
                  onChanged();
                },
                maxLines: 1,
                isTitle: false,
                isHTML: true,
                showPreview: true,
              ),
            ),
          ],
        ),
        SizedBox(height: kSpace5),
        SectionCard(
          icon: Icons.sports_esports,
          title: l.pathMoodTitle,
          subtitle: l.pathMoodSub,
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Text(l.pathMoodQuestion, style: kLabelField),
              RadioGroup<bool>(
                groupValue: path.isGameMode ?? false,
                onChanged: (val) {
                  path.isGameMode = val;
                  onChanged();
                },
                child: Column(
                  children: [
                    RadioListTile<bool>(
                      dense: true,
                      contentPadding: EdgeInsets.zero,
                      activeColor: kPrimaryColor,
                      value: false,
                      title: Text(l.pathMoodVisit, style: kTextBody),
                      subtitle: Text(
                        l.pathMoodVisitDesc,
                        style: kTextHint,
                      ),
                    ),
                    RadioListTile<bool>(
                      dense: true,
                      contentPadding: EdgeInsets.zero,
                      activeColor: kPrimaryColor,
                      value: true,
                      title: Text(l.pathMoodGame, style: kTextBody),
                      subtitle: Text(
                        l.pathMoodGameDesc,
                        style: kTextHint,
                      ),
                    ),
                  ],
                ),
              ),
              if (path.isGameMode == true) ...[
                SizedBox(height: kSpace3),
                Row(
                  children: [
                    Expanded(
                      child: MultiStringInputContainer(
                        label: l.startMessageLabel,
                        modalLabel: l.gameStartMessageModalLabel,
                        color: kPrimaryColor,
                        initialValue: (path.gameMessageDebut ?? [])
                            .map((t) => TranslationDTO(
                                language: t.language, value: t.value))
                            .toList(),
                        onGetResult: (val) {
                          path.gameMessageDebut =
                              _mergeResources(val, path.gameMessageDebut);
                          onChanged();
                        },
                        maxLines: 2,
                        isTitle: false,
                        isHTML: true,
                        showPreview: true,
                      ),
                    ),
                    SizedBox(width: kSpace7),
                    Expanded(
                      child: MultiStringInputContainer(
                        label: l.endMessageLabel,
                        modalLabel: l.gameEndMessageModalLabel,
                        color: kPrimaryColor,
                        initialValue: (path.gameMessageFin ?? [])
                            .map((t) => TranslationDTO(
                                language: t.language, value: t.value))
                            .toList(),
                        onGetResult: (val) {
                          path.gameMessageFin =
                              _mergeResources(val, path.gameMessageFin);
                          onChanged();
                        },
                        maxLines: 2,
                        isTitle: false,
                        isHTML: true,
                        showPreview: true,
                      ),
                    ),
                  ],
                ),
              ],
            ],
          ),
        ),
        SizedBox(height: kSpace5),
        SectionCard(
          icon: Icons.settings,
          title: l.pathOptionsTitle,
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Text(l.pathProgressionQuestion, style: kLabelField),
              RadioGroup<ProgressionMode>(
                groupValue: progressionModeOf(path),
                onChanged: (val) {
                  applyProgressionMode(path, val!);
                  onChanged();
                },
                child: Column(
                  children: [
                    for (final mode in ProgressionMode.values)
                      RadioListTile<ProgressionMode>(
                        dense: true,
                        contentPadding: EdgeInsets.zero,
                        activeColor: kPrimaryColor,
                        value: mode,
                        title: Text(mode.label(l), style: kTextBody),
                        subtitle: Text(mode.description(l), style: kTextHint),
                      ),
                  ],
                ),
              ),
              if (progressionModeOf(path) == ProgressionMode.stepByStep)
                Padding(
                  padding: const EdgeInsets.only(left: kSpace5),
                  child: CheckInputContainer(
                    label: l.pathHideNextSteps,
                    subtitle:
                        l.pathHideNextStepsDesc,
                    isChecked: path.hideNextStepsUntilComplete ?? false,
                    onChanged: (val) {
                      path.hideNextStepsUntilComplete = val;
                      onChanged();
                    },
                  ),
                ),
              SizedBox(height: kSpace3),
              NumberStepperField(
                label: l.pathEstimatedDuration,
                value: path.estimatedDurationMinutes,
                min: 0,
                max: 600,
                unit: l.minutesAbbr,
                onChanged: (val) {
                  path.estimatedDurationMinutes = val.toInt();
                  onChanged();
                },
              ),
            ],
          ),
        ),
      ],
    );
  }
}