import 'package:flutter/material.dart';
import 'package:unofficial_jisho_api/api.dart';

import '../../../../../bloc/theme/theme_bloc.dart';
import 'antonyms.dart';
import 'definition_abstract.dart';
import 'english_definitions.dart';
import 'sentences.dart';
import 'supplemental_info.dart';

class Sense extends StatelessWidget {
  final int index;
  final JishoWordSense sense;
  final PhraseScrapeMeaning? meaning;

  const Sense({
    Key? key,
    required this.index,
    required this.sense,
    this.meaning,
  }) : super(key: key);

  // TODO: This assumes that there is only one antonym. However, the
  //         antonym system is made with the case of multiple antonyms
  //         in mind.
  List<String> _removeAntonyms(List<String> supplementalInfo) {
    for (int i = 0; i < supplementalInfo.length; i++) {
      if (RegExp(r'^Antonym: .*$').hasMatch(supplementalInfo[i])) {
        supplementalInfo.removeAt(i);
        break;
      }
    }
    return supplementalInfo;
  }

  List<String>? get _supplementalWithoutAntonyms => meaning == null
      ? null
      : _removeAntonyms(List.from(meaning!.supplemental));

  bool get hasSupplementalInfo =>
      sense.info.isNotEmpty ||
      sense.source.isNotEmpty ||
      sense.tags.isNotEmpty ||
      (_supplementalWithoutAntonyms?.isNotEmpty ?? false);

  @override
  Widget build(BuildContext context) => BlocBuilder<ThemeBloc, ThemeState>(
        builder: (context, state) => Container(
          margin: const EdgeInsets.symmetric(vertical: 5),
          padding: const EdgeInsets.all(10),
          decoration: BoxDecoration(
            color: state.theme.menuGreyLight.background,
            borderRadius: BorderRadius.circular(10.0),
          ),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              Text(
                '${index + 1}. ${sense.partsOfSpeech.join(', ')}',
                style: const TextStyle(fontWeight: FontWeight.bold),
                textAlign: TextAlign.left,
              ),
              EnglishDefinitions(
                englishDefinitions: sense.englishDefinitions,
                colors: state.theme.menuGreyNormal,
              ),
              if (hasSupplementalInfo)
                SupplementalInfo(
                  sense: sense,
                  supplementalInfo: _supplementalWithoutAntonyms,
                ),
              if (meaning?.definitionAbstract != null)
                DefinitionAbstract(
                  text: meaning!.definitionAbstract!,
                  color: state.theme.foreground,
                ),
              if (sense.antonyms.isNotEmpty) Antonyms(antonyms: sense.antonyms),
              if (meaning != null && meaning!.sentences.isNotEmpty)
                Sentences(sentences: meaning!.sentences)
            ]
                .map(
                  (e) => Container(
                    margin: const EdgeInsets.symmetric(vertical: 5),
                    child: e,
                  ),
                )
                .toList(),
          ),
        ),
      );
}