one step closer

app/lib/data/database/converters/color.dart

@@ -0,0 +1,17 @@
+import 'dart:ui';
+
+import 'package:drift/drift.dart';
+
+class ColorConverter extends TypeConverter<Color, int> {
+  const ColorConverter();
+
+  @override
+  Color fromSql(int fromDb) {
+    return Color(fromDb);
+  }
+
+  @override
+  int toSql(Color value) {
+    return value.value;
+  }
+}

app/lib/data/database/converters/icon_data.dart

@@ -0,0 +1,48 @@
+import 'dart:convert';
+
+import 'package:drift/drift.dart';
+import 'package:flutter/widgets.dart';
+import 'package:json_annotation/json_annotation.dart';
+
+class IconDataJsonConverter
+    implements JsonConverter<IconData, Map<String, dynamic>> {
+  const IconDataJsonConverter();
+
+  @override
+  IconData fromJson(Map<String, dynamic> json) {
+    return IconData(
+      json['codePoint'] as int,
+      fontFamily: json['fontFamily'] as String,
+      fontPackage: json['fontPackage'] as String,
+    );
+  }
+
+  @override
+  Map<String, dynamic> toJson(IconData iconData) {
+    return <String, dynamic>{
+      'codePoint': iconData.codePoint,
+      'fontFamily': iconData.fontFamily,
+      'fontPackage': iconData.fontPackage,
+    };
+  }
+}
+
+class IconDataTypeConverter implements TypeConverter<IconData, String> {
+  const IconDataTypeConverter();
+
+  @override
+  IconData fromSql(String fromDb) {
+    final json = jsonDecode(fromDb) as Map<String, dynamic>;
+    return const IconDataJsonConverter().fromJson(json);
+  }
+
+  @override
+  String toSql(IconData value) {
+    assert(
+      value.fontFamily != null,
+      'Font family must be provided to identify icon',
+    );
+
+    return jsonEncode(const IconDataJsonConverter().toJson(value));
+  }
+}

app/lib/data/database/converters/uri.dart

@@ -0,0 +1,16 @@
+import 'package:drift/drift.dart';
+import 'package:lensai/utils/uri_parser.dart' as uri_parser;
+
+class UriConverter extends TypeConverter<Uri, String> {
+  const UriConverter();
+
+  @override
+  Uri fromSql(String fromDb) {
+    return uri_parser.tryParseUrl(fromDb, eagerParsing: true)!;
+  }
+
+  @override
+  String toSql(Uri value) {
+    return value.toString();
+  }
+}

app/lib/data/database/functions/lexo_rank_functions.dart

@@ -0,0 +1,58 @@
+import 'package:lexo_rank/lexo_rank.dart';
+import 'package:lexo_rank/lexo_rank/lexo_rank_bucket.dart';
+import 'package:sqlite3/common.dart';
+
+String _nextRankOrMiddle(List<Object?> args) {
+  final parsedBucket = LexoRankBucket.resolve(args[0]! as int);
+
+  if (args[1] != null) {
+    final parsedRank = LexoRank.parse(args[1]! as String);
+
+    return parsedRank.genNext().value;
+  } else {
+    return LexoRank.middle(bucket: parsedBucket).value;
+  }
+}
+
+String _previousRankOrMiddle(List<Object?> args) {
+  final parsedBucket = LexoRankBucket.resolve(args[0]! as int);
+
+  if (args[1] != null) {
+    final parsedRank = LexoRank.parse(args[1]! as String);
+
+    return parsedRank.genPrev().value;
+  } else {
+    return LexoRank.middle(bucket: parsedBucket).value;
+  }
+}
+
+String _reorderAfter(List<Object?> args) {
+  final first = (args[0] != null) ? LexoRank.parse(args[0]! as String) : null;
+  final last = (args[1] != null) ? LexoRank.parse(args[1]! as String) : null;
+
+  if (first == null) {
+    throw Exception('Tab not found');
+  } else if (last == null) {
+    return first.genNext().value;
+  } else {
+    return first.genBetween(last).value;
+  }
+}
+
+void registerLexorankFunctions(CommonDatabase database) {
+  database.createFunction(
+    functionName: 'lexo_rank_next',
+    argumentCount: const AllowedArgumentCount(2),
+    function: _nextRankOrMiddle,
+  );
+  database.createFunction(
+    functionName: 'lexo_rank_previous',
+    argumentCount: const AllowedArgumentCount(2),
+    function: _previousRankOrMiddle,
+  );
+  database.createFunction(
+    functionName: 'lexo_rank_reorder_after',
+    argumentCount: const AllowedArgumentCount(2),
+    function: _reorderAfter,
+  );
+}