jadb/lib/_data_ingestion/kanjivg/objects.dart

import 'package:jadb/_data_ingestion/sql_writable.dart';

/// Enum set in the kvg:position attribute, used by `<g>` elements in the KanjiVG SVG files.
enum KanjiPathGroupPosition {
  upperA,
  upperB,
  lower1,
  lower2,
  bottom,
  kamae,
  kamaec,
  left,
  middle,
  nyo,
  nyoc,
  right,
  tare,
  tarec,
  top;

  static KanjiPathGroupPosition? fromString(String? str) {
    if (str == null) return null;
    switch (str) {
      case '⿵A':
        return KanjiPathGroupPosition.upperA;
      case '⿵B':
        return KanjiPathGroupPosition.upperB;
      case '⿶1':
        return KanjiPathGroupPosition.lower1;
      case '⿶2':
        return KanjiPathGroupPosition.lower2;
      case 'bottom':
        return KanjiPathGroupPosition.bottom;
      case 'kamae':
        return KanjiPathGroupPosition.kamae;
      case 'kamaec':
        return KanjiPathGroupPosition.kamaec;
      case 'left':
        return KanjiPathGroupPosition.left;
      case 'middle':
        return KanjiPathGroupPosition.middle;
      case 'nyo':
        return KanjiPathGroupPosition.nyo;
      case 'nyoc':
        return KanjiPathGroupPosition.nyoc;
      case 'right':
        return KanjiPathGroupPosition.right;
      case 'tare':
        return KanjiPathGroupPosition.tare;
      case 'tarec':
        return KanjiPathGroupPosition.tarec;
      case 'top':
        return KanjiPathGroupPosition.top;
      default:
        throw ArgumentError('Unknown position: $str');
    }
  }
}

enum KanjiVGRadical {
  general,
  jis,
  nelson,
  tradit;

  static KanjiVGRadical? fromString(String? str) {
    if (str == null) return null;
    switch (str) {
      case 'general':
        return KanjiVGRadical.general;
      case 'jis':
        return KanjiVGRadical.jis;
      case 'nelson':
        return KanjiVGRadical.nelson;
      case 'tradit':
        return KanjiVGRadical.tradit;
      default:
        throw ArgumentError('Unknown radical: $str');
    }
  }
}

/// Contents of a \<g> element in the KanjiVG SVG files.
class KanjiPathGroupTreeNode extends SQLWritable {
  final int id;
  final List<KanjiPathGroupTreeNode> children;
  final String? element;
  final String? original;
  final KanjiPathGroupPosition? position;
  final KanjiVGRadical? radical;
  final int? part;

  // Currently unused data.
  final bool radicalForm;
  final bool tradForm;
  final bool partial;
  final String? variant;

  KanjiPathGroupTreeNode({
    required this.id,
    this.children = const [],
    this.element,
    this.original,
    this.position,
    this.radical,
    this.part,

    this.variant,
    this.radicalForm = false,
    this.tradForm = false,
    this.partial = false,
  });

  @override
  Map<String, Object?> get sqlValue => {
    'groupId': id,
    'element': element,
    'original': original,
    'position': position?.name,
    'radical': radical?.name,
    'part': part,
  };
}

/// Contents of a `<text>` element in the StrokeNumber's group in the KanjiVG SVG files
class KanjiStrokeNumber extends SQLWritable {
  final int num;
  final double x;
  final double y;

  KanjiStrokeNumber(this.num, this.x, this.y);

  @override
  Map<String, Object?> get sqlValue => {'strokeNum': num, 'x': x, 'y': y};
}

/// Contents of a `<path>` element in the KanjiVG SVG files
class KanjiVGPath extends SQLWritable {
  final int id;
  final String? type;
  final String svgPath;

  KanjiVGPath({required this.id, required this.type, required this.svgPath});

  @override
  Map<String, Object?> get sqlValue => {
    'pathId': id,
    'type': type,
    'svgPath': svgPath,
  };
}

class KanjiVGItem extends SQLWritable {
  final String character;
  final List<KanjiVGPath> paths;
  final List<KanjiStrokeNumber> strokeNumbers;
  final List<KanjiPathGroupTreeNode> pathGroups;

  KanjiVGItem({
    required this.character,
    required this.paths,
    required this.strokeNumbers,
    required this.pathGroups,
  });

  @override
  Map<String, Object?> get sqlValue => {'character': character};
}