Add year range.

src/main/kotlin/org/koitharu/kotatsu/parsers/MangaParser.kt

@@ -63,6 +63,12 @@ abstract class MangaParser @InternalParsersApi constructor(
 
 	open val isSearchYearSupported: Boolean = false
 
+	/**
+	 * Whether parser supports searching by year range
+	 */
+
+	open val isSearchYearRangeSupported: Boolean = false
+
 	/**
 	 * Whether parser supports searching Original Languages
 	 */
@@ -183,6 +189,8 @@ abstract class MangaParser @InternalParsersApi constructor(
 				contentRating = emptySet(),
 				query = null,
 				year = null,
+				yearFrom = null,
+				yearTo = null,
 			),
 		)
 	}

src/main/kotlin/org/koitharu/kotatsu/parsers/model/MangaListFilter.kt

@@ -15,8 +15,8 @@ sealed interface MangaListFilter {
 			(tagsExclude.isEmpty() || parser.isTagsExclusionSupported) &&
 			(contentRating.isEmpty() || parser.availableContentRating.containsAll(contentRating)) &&
 			(states.isEmpty() || parser.availableStates.containsAll(states) &&
-			(parser.searchSupportedWithMultipleFilters) &&
+			(parser.searchSupportedWithMultipleFilters) &&(parser.isSearchOriginalLanguages) &&
-			(parser.isSearchYearSupported) && (parser.isSearchOriginalLanguages))
+			(parser.isSearchYearSupported) && (parser.isSearchYearRangeSupported))
 
 		is Search -> parser.isSearchSupported
 	}
@@ -40,10 +40,12 @@ sealed interface MangaListFilter {
 		@JvmField val contentRating: Set<ContentRating>,
 		@JvmField val query: String?,
 		@JvmField val year: Int?,
+		@JvmField val yearFrom: Int?,
+		@JvmField val yearTo: Int?,
 	) : MangaListFilter {
 
 		override fun isEmpty(): Boolean =
-			tags.isEmpty() && tagsExclude.isEmpty() && locale == null && localeMangas == null && states.isEmpty() && contentRating.isEmpty() && query == null && year == null
+			tags.isEmpty() && tagsExclude.isEmpty() && locale == null && localeMangas == null && states.isEmpty() && contentRating.isEmpty() && query == null && year == null && yearFrom == null && yearTo == null
 
 		fun newBuilder() = Builder(sortOrder)
 			.tags(tags)
@@ -54,6 +56,8 @@ sealed interface MangaListFilter {
 			.contentRatings(contentRating)
 			.query(query)
 			.year(year)
+			.yearFrom(yearFrom)
+			.yearTo(yearTo)
 
 		class Builder(sortOrder: SortOrder) {
 
@@ -66,6 +70,8 @@ sealed interface MangaListFilter {
 			private var _contentRating: Set<ContentRating>? = null
 			private var _query: String? = null
 			private var _year: Int? = null
+			private var _yearFrom: Int? = null
+			private var _yearTo: Int? = null
 
 			fun sortOrder(order: SortOrder) = apply {
 				_sortOrder = order
@@ -103,6 +109,14 @@ sealed interface MangaListFilter {
 				_year = year
 			}
 
+			fun yearFrom(yearFrom: Int?) = apply {
+				_yearFrom = yearFrom
+			}
+
+			fun yearTo(yearTo: Int?) = apply {
+				_yearTo = yearTo
+			}
+
 
 
 			fun build() = Advanced(
@@ -115,6 +129,8 @@ sealed interface MangaListFilter {
 				contentRating = _contentRating.orEmpty(),
 				query = _query,
 				year = _year,
+				yearFrom = _yearFrom,
+				yearTo = _yearTo,
 				)
 		}
 	}

src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/ComickFunParser.kt

@@ -29,6 +29,8 @@ internal class ComickFunParser(context: MangaLoaderContext) :
 
 	override val isTagsExclusionSupported = true
 
+	override val isSearchYearRangeSupported = true
+
 	override val availableSortOrders: Set<SortOrder> = EnumSet.of(
 		SortOrder.POPULARITY,
 		SortOrder.UPDATED,
@@ -93,6 +95,14 @@ internal class ComickFunParser(context: MangaLoaderContext) :
 						},
 					)
 				}
+
+				filter.yearFrom?.let {
+					url.addQueryParameter("from", filter.yearFrom.toString() )
+				}
+
+				filter.yearTo?.let {
+					url.addQueryParameter("to", filter.yearTo.toString() )
+				}
 			}
 		}
 		val ja = webClient.httpGet(url.build()).parseJsonArray()

src/test/kotlin/org/koitharu/kotatsu/parsers/MangaParserTest.kt

@@ -62,6 +62,8 @@ internal class MangaParserTest {
 				contentRating = emptySet(),
 				query = null,
 				year = null,
+				yearFrom = null,
+				yearTo = null,
 			),
 		).minByOrNull {
 			it.title.length
@@ -139,6 +141,8 @@ internal class MangaParserTest {
 			contentRating = setOf(),
 			query = null,
 			year = null,
+			yearFrom = null,
+			yearTo = null,
 		)
 		val list = parser.getList(offset = 0, filter)
 		checkMangaList(list, filter.locale.toString())