[HuntersScan] Update domain and fixes (#2039)

Close #2038

src/main/kotlin/org/koitharu/kotatsu/parsers/site/madara/pt/HuntersScan.kt

@@ -1,14 +1,119 @@
 package org.koitharu.kotatsu.parsers.site.madara.pt
 
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
+import kotlinx.coroutines.coroutineScope
+import org.jsoup.nodes.Document
+import org.jsoup.nodes.Element
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
 import org.koitharu.kotatsu.parsers.MangaSourceParser
+import org.koitharu.kotatsu.parsers.model.ContentRating
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.parsers.model.MangaParserSource
+import org.koitharu.kotatsu.parsers.model.MangaState
+import org.koitharu.kotatsu.parsers.model.RATING_UNKNOWN
 import org.koitharu.kotatsu.parsers.site.madara.MadaraParser
+import org.koitharu.kotatsu.parsers.util.attrAsRelativeUrl
+import org.koitharu.kotatsu.parsers.util.generateUid
+import org.koitharu.kotatsu.parsers.util.mapChapters
+import org.koitharu.kotatsu.parsers.util.parseHtml
+import org.koitharu.kotatsu.parsers.util.removeSuffix
+import org.koitharu.kotatsu.parsers.util.selectFirstOrThrow
+import org.koitharu.kotatsu.parsers.util.textOrNull
+import org.koitharu.kotatsu.parsers.util.toAbsoluteUrl
+import java.text.SimpleDateFormat
 
 @MangaSourceParser("HUNTERSSCAN", "HuntersScan", "pt")
 internal class HuntersScan(context: MangaLoaderContext) :
-	MadaraParser(context, MangaParserSource.HUNTERSSCAN, "hunterscomics.com", pageSize = 50) {
-	override val datePattern = "MM/dd/yyyy"
+	MadaraParser(context, MangaParserSource.HUNTERSSCAN, "readhunters.xyz", pageSize = 50) {
+
+	override val datePattern = "dd/MM/yyyy"
 	override val tagPrefix = "series-genre/"
 	override val listUrl = "series/"
+
+	override suspend fun getChapters(manga: Manga, doc: Document): List<MangaChapter> {
+		return fetchAllChapters(manga)
+	}
+
+	override suspend fun loadChapters(mangaUrl: String, document: Document): List<MangaChapter> {
+		return fetchAllChapters(
+			Manga(
+				id = generateUid(mangaUrl),
+				url = mangaUrl,
+				publicUrl = mangaUrl.toAbsoluteUrl(domain),
+				title = "",
+				altTitles = emptySet(),
+				authors = emptySet(),
+				tags = emptySet(),
+				rating = RATING_UNKNOWN,
+				state = MangaState.ONGOING,
+				coverUrl = null,
+				contentRating = ContentRating.SAFE,
+				source = source,
+			),
+		)
+	}
+
+	private suspend fun fetchAllChapters(manga: Manga): List<MangaChapter> = coroutineScope {
+		val baseUrl = "${manga.url.toAbsoluteUrl(domain).removeSuffix('/')}/ajax/chapters/?t="
+		val dateFormat = SimpleDateFormat(datePattern, sourceLocale)
+
+		// Fetch first page
+		val firstPageDoc = webClient.httpPost(baseUrl + "1", emptyMap()).parseHtml()
+		val totalPages = extractTotalPages(firstPageDoc)
+		val firstPageChapters = firstPageDoc.select(selectChapter).map { parseChapterElement(it, dateFormat) }
+
+		if (totalPages <= 1) {
+			return@coroutineScope firstPageChapters.mapChapters(reversed = true) { index, chapter ->
+				chapter.copy(number = (firstPageChapters.size - index).toFloat())
+			}
+		}
+
+		// Fetch remaining pages concurrently
+		val remainingPagesChapters = (2..totalPages).chunked(10).flatMap { batch ->
+			batch.map { page ->
+				async {
+					try {
+						val doc = webClient.httpPost(baseUrl + page, emptyMap()).parseHtml()
+						doc.select(selectChapter).map {
+							parseChapterElement(it, dateFormat)
+						}
+					} catch (e: Exception) {
+						emptyList()
+					}
+				}
+			}.awaitAll().flatten()
+		}
+
+		val allChapters = firstPageChapters + remainingPagesChapters
+		allChapters.mapChapters(reversed = true) { index, chapter ->
+			chapter.copy(number = (allChapters.size - index).toFloat())
+		}
+
+	}
+
+	private fun extractTotalPages(doc: Document): Int {
+		val pagination = doc.selectFirst(".pagination") ?: return 1
+
+		return pagination.select("a[data-page]").mapNotNull { it.attr("data-page").toIntOrNull() }.maxOrNull() ?: 1
+	}
+
+	private fun parseChapterElement(li: Element, dateFormat: SimpleDateFormat): MangaChapter {
+		val a = li.selectFirstOrThrow("a")
+		val href = a.attrAsRelativeUrl("href")
+
+		return MangaChapter(
+			id = generateUid(href),
+			title = a.ownText().ifEmpty { a.text() },
+			number = 0f, // Will be set later
+			volume = 0,
+			url = href + stylePage,
+			uploadDate = parseChapterDate(dateFormat, li.selectFirst(selectDate)?.textOrNull()),
+			source = source,
+			scanlator = null,
+			branch = null,
+		)
+	}
 }
+