Update utils

src/main/kotlin/org/koitharu/kotatsu/parsers/util/Collection.kt

@@ -6,6 +6,8 @@ import androidx.collection.ArrayMap
 import androidx.collection.ArraySet
 import java.util.*
 
+public fun Collection<*>?.sizeOrZero(): Int = this?.size ?: 0
+
 public fun <T> MutableCollection<T>.replaceWith(subject: Iterable<T>) {
 	clear()
 	addAll(subject)
@@ -66,3 +68,22 @@ public fun <K> MutableMap<K, Int>.incrementAndGet(key: K): Int {
 	put(key, value)
 	return value
 }
+
+public inline fun <T> MutableSet(size: Int, init: (index: Int) -> T): MutableSet<T> {
+	val set = ArraySet<T>(size)
+	repeat(size) { index -> set.add(init(index)) }
+	return set
+}
+
+public inline fun <T> Set(size: Int, init: (index: Int) -> T): Set<T> = when (size) {
+	0 -> emptySet()
+	1 -> Collections.singleton(init(0))
+	else -> MutableSet(size, init)
+}
+
+@Suppress("UNCHECKED_CAST")
+public inline fun <T, reified R> Collection<T>.mapToArray(transform: (T) -> R): Array<R> {
+	val result = arrayOfNulls<R>(size)
+	forEachIndexed { index, t -> result[index] = transform(t) }
+	return result as Array<R>
+}

src/main/kotlin/org/koitharu/kotatsu/parsers/util/CookieJar.kt

@@ -6,8 +6,6 @@ import okhttp3.Cookie
 import okhttp3.CookieJar
 import okhttp3.HttpUrl
 
-private const val SCHEME_HTTPS = "https"
-
 public fun CookieJar.insertCookies(domain: String, vararg cookies: String) {
 	val url = safeUrlOf(domain) ?: return
 	saveFromResponse(

src/main/kotlin/org/koitharu/kotatsu/parsers/util/MangaParserEnv.kt

@@ -18,7 +18,7 @@ import org.koitharu.kotatsu.parsers.model.*
  */
 @InternalParsersApi
 public fun MangaParser.generateUid(url: String): Long {
-	var h = 1125899906842597L
+	var h = LONG_HASH_SEED
 	source.name.forEach { c ->
 		h = 31 * h + c.code
 	}
@@ -37,7 +37,7 @@ public fun MangaParser.generateUid(url: String): Long {
  */
 @InternalParsersApi
 public fun MangaParser.generateUid(id: Long): Long {
-	var h = 1125899906842597L
+	var h = LONG_HASH_SEED
 	source.name.forEach { c ->
 		h = 31 * h + c.code
 	}
@@ -82,9 +82,7 @@ private fun <T> Set<T>?.oneOrThrowIfMany(msg: String): T? = when {
 }
 
 public val MangaParser.domain: String
-	get() {
-		return config[configKeyDomain]
-	}
+	get() = config[configKeyDomain]
 
 @InternalParsersApi
 public fun MangaParser.getDomain(subdomain: String): String {
@@ -95,6 +93,6 @@ public fun MangaParser.getDomain(subdomain: String): String {
 @InternalParsersApi
 public fun MangaParser.urlBuilder(subdomain: String? = null): HttpUrl.Builder {
 	return HttpUrl.Builder()
-		.scheme("https")
+		.scheme(SCHEME_HTTPS)
 		.host(if (subdomain == null) domain else "$subdomain.$domain")
 }

src/main/kotlin/org/koitharu/kotatsu/parsers/util/Number.kt

@@ -58,12 +58,23 @@ public fun Number.formatSimple(): String {
 	}
 }
 
-public inline fun Int.ifZero(defaultVale: () -> Int): Int {
+public inline fun Int.ifZero(defaultValue: () -> Int): Int {
 	contract {
-		callsInPlace(defaultVale, InvocationKind.AT_MOST_ONCE)
+		callsInPlace(defaultValue, InvocationKind.AT_MOST_ONCE)
 	}
 	return if (this == 0) {
-		defaultVale()
+		defaultValue()
+	} else {
+		this
+	}
+}
+
+public inline fun Long.ifZero(defaultValue: () -> Long): Long {
+	contract {
+		callsInPlace(defaultValue, InvocationKind.AT_MOST_ONCE)
+	}
+	return if (this == 0L) {
+		defaultValue()
 	} else {
 		this
 	}

src/main/kotlin/org/koitharu/kotatsu/parsers/util/OkHttp.kt

@@ -3,10 +3,7 @@
 package org.koitharu.kotatsu.parsers.util
 
 import kotlinx.coroutines.suspendCancellableCoroutine
-import okhttp3.Call
-import okhttp3.Headers
-import okhttp3.Response
-import okhttp3.ResponseBody
+import okhttp3.*
 import kotlin.contracts.InvocationKind
 import kotlin.contracts.contract
 
@@ -19,9 +16,8 @@ public suspend fun Call.await(): Response = suspendCancellableCoroutine { contin
 public val Response.mimeType: String?
 	get() = header("content-type")?.substringBefore(';')?.trim()?.nullIfEmpty()?.lowercase()
 
-@Deprecated("")
-public val Response.contentDisposition: String?
-	get() = header("Content-Disposition")
+public val HttpUrl.isHttpOrHttps: Boolean
+	get() = scheme.equals("https", ignoreCase = true) || scheme.equals("http", ignoreCase = true)
 
 public fun Headers.Builder.mergeWith(other: Headers, replaceExisting: Boolean): Headers.Builder {
 	for ((name, value) in other) {
@@ -52,3 +48,23 @@ public inline fun Response.map(mapper: (ResponseBody) -> ResponseBody): Response
 			.build()
 	} ?: this
 }
+
+public fun Cookie.newBuilder(): Cookie.Builder = Cookie.Builder().also { c ->
+	c.name(name)
+	c.value(value)
+	if (persistent) {
+		c.expiresAt(expiresAt)
+	}
+	if (hostOnly) {
+		c.hostOnlyDomain(domain)
+	} else {
+		c.domain(domain)
+	}
+	c.path(path)
+	if (secure) {
+		c.secure()
+	}
+	if (httpOnly) {
+		c.httpOnly()
+	}
+}

src/main/kotlin/org/koitharu/kotatsu/parsers/util/Parse.kt

@@ -13,7 +13,7 @@ import org.koitharu.kotatsu.parsers.InternalParsersApi
 import java.text.DateFormat
 
 private val REGEX_SCHEME_PREFIX = Regex("^\\w{2,6}://", RegexOption.IGNORE_CASE)
-private const val SCHEME_HTTPS = "https"
+internal const val SCHEME_HTTPS = "https"
 
 /**
  * Parse [Response] body as html document using Jsoup

src/main/kotlin/org/koitharu/kotatsu/parsers/util/RelatedMangaFinder.kt

@@ -13,8 +13,6 @@ public class RelatedMangaFinder(
 	private val parsers: Collection<MangaParser>,
 ) {
 
-	private val regexWhitespace = Regex("\\s+")
-
 	public suspend operator fun invoke(seed: Manga): List<Manga> = coroutineScope {
 		parsers.singleOrNull()?.let { parser ->
 			findRelatedImpl(this, parser, seed)
@@ -27,9 +25,9 @@ public class RelatedMangaFinder(
 
 	private suspend fun findRelatedImpl(scope: CoroutineScope, parser: MangaParser, seed: Manga): List<Manga> {
 		val words = HashSet<String>()
-		words += seed.title.split(regexWhitespace)
+		words += seed.title.splitByWhitespace()
 		seed.altTitle?.let {
-			words += it.split(regexWhitespace)
+			words += it.splitByWhitespace()
 		}
 		if (words.isEmpty()) {
 			return emptyList()

src/main/kotlin/org/koitharu/kotatsu/parsers/util/String.kt

@@ -3,15 +3,17 @@
 package org.koitharu.kotatsu.parsers.util
 
 import androidx.collection.MutableIntList
-import androidx.collection.arraySetOf
 import java.math.BigInteger
 import java.net.URLDecoder
 import java.net.URLEncoder
 import java.security.MessageDigest
 import java.util.*
+import kotlin.contracts.InvocationKind
+import kotlin.contracts.contract
 import kotlin.math.min
 
 private val REGEX_WHITESPACE = Regex("\\s+")
+internal const val LONG_HASH_SEED = 1125899906842597L
 
 public fun String.removeSurrounding(vararg chars: Char): String {
 	if (isEmpty()) {
@@ -25,6 +27,22 @@ public fun String.removeSurrounding(vararg chars: Char): String {
 	return this
 }
 
+public inline fun <C : R, R : CharSequence?> C?.ifNullOrEmpty(defaultValue: () -> R): R {
+	contract {
+		callsInPlace(defaultValue, InvocationKind.AT_MOST_ONCE)
+	}
+	return if (this.isNullOrEmpty()) defaultValue() else this
+}
+
+public fun String.longHashCode(): Long {
+	var h = LONG_HASH_SEED
+	val len: Int = this.length
+	for (i in 0 until len) {
+		h = 31 * h + this[i].code
+	}
+	return h
+}
+
 public fun String.toCamelCase(): String {
 	if (isEmpty()) {
 		return this
@@ -44,6 +62,8 @@ public fun String.toCamelCase(): String {
 	return result.toString()
 }
 
+public fun String.digits(): String = filter { it.isDigit() }
+
 public fun String.toTitleCase(): String {
 	return replaceFirstChar { x -> x.uppercase() }
 }
@@ -52,35 +72,6 @@ public fun String.toTitleCase(locale: Locale): String {
 	return replaceFirstChar { x -> x.uppercase(locale) }
 }
 
-public fun String.transliterate(skipMissing: Boolean): String {
-	val cyr = charArrayOf(
-		'а', 'б', 'в', 'г', 'д', 'е', 'ж', 'з', 'и', 'й', 'к', 'л', 'м', 'н', 'о', 'п',
-		'р', 'с', 'т', 'у', 'ф', 'х', 'ц', 'ч', 'ш', 'щ', 'ъ', 'ы', 'ь', 'э', 'ю', 'я', 'ё', 'ў',
-	)
-	val lat = arrayOf(
-		"a", "b", "v", "g", "d", "e", "zh", "z", "i", "y", "k", "l", "m", "n", "o", "p",
-		"r", "s", "t", "u", "f", "h", "ts", "ch", "sh", "sch", "", "i", "", "e", "ju", "ja", "jo", "w",
-	)
-	return buildString(length + 5) {
-		for (c in this@transliterate) {
-			val p = cyr.binarySearch(c.lowercaseChar())
-			if (p in lat.indices) {
-				if (c.isUpperCase()) {
-					append(lat[p].uppercase())
-				} else {
-					append(lat[p])
-				}
-			} else if (!skipMissing) {
-				append(c)
-			}
-		}
-	}
-}
-
-public fun String.toFileNameSafe(): String = this.transliterate(false)
-	.replace(Regex("[^a-z0-9_\\-]", arraySetOf(RegexOption.IGNORE_CASE)), " ")
-	.replace(REGEX_WHITESPACE, "_")
-
 public fun String.ellipsize(maxLength: Int): String = if (this.length > maxLength) {
 	this.take(maxLength - 1) + Typography.ellipsis
 } else this

src/main/kotlin/org/koitharu/kotatsu/parsers/util/suspendlazy/SuspendLazy.kt

@@ -15,7 +15,13 @@ public interface SuspendLazy<T> {
 	public fun peek(): T?
 }
 
-public suspend fun <T> SuspendLazy<T>.getOrNull(): T? = runCatchingCancellable { get() }.getOrNull()
+public suspend fun <T> SuspendLazy<T>.getOrNull(): T? = runCatchingCancellable {
+	get()
+}.getOrNull()
+
+public suspend fun <R, T : R> SuspendLazy<T>.getOrDefault(defaultValue: R): R = runCatchingCancellable {
+	get()
+}.getOrDefault(defaultValue)
 
 public fun <T> suspendLazy(
 	context: CoroutineContext = EmptyCoroutineContext,

src/test/kotlin/org/koitharu/kotatsu/test_util/Util.kt

@@ -5,6 +5,7 @@ import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaParserSource
 import org.koitharu.kotatsu.parsers.model.RATING_UNKNOWN
+import org.koitharu.kotatsu.parsers.util.LONG_HASH_SEED
 import org.koitharu.kotatsu.parsers.util.toRelativeUrl
 
 private val PATTERN_URL_ABSOLUTE = Regex("^https?://[\\s\\S]+", setOf(RegexOption.IGNORE_CASE))
@@ -55,7 +56,7 @@ inline operator fun <T> List<T>.component7(): T = get(6)
 
 fun mangaOf(source: MangaParserSource, url: String): Manga {
 	val httpUrl = url.toHttpUrlOrNull()
-	var id = 1125899906842597L
+	var id = LONG_HASH_SEED
 	source.name.forEach { c -> id = 31 * id + c.code }
 	url.forEach { c -> id = 31 * id + c.code }
 	return Manga(