Added Offline mode

libpupil/src/main/java/xyz/quaver/hitomi/galleryblock.kt

@@ -1,5 +1,6 @@
 package xyz.quaver.hitomi
 
+import kotlinx.serialization.Serializable
 import org.jsoup.Jsoup
 import java.net.URL
 import java.net.URLDecoder
@@ -39,13 +40,14 @@ fun fetchNozomi(area: String? = null, tag: String = "index", language: String =
             return nozomi
         }
     } catch (e: Exception) {
-        return listOf()
+        return emptyList()
     }
 }
 
+@Serializable
 data class GalleryBlock(
     val id: Int,
-    val thumbnails: List<URL>,
+    val thumbnails: List<String>,
     val title: String,
     val artists: List<String>,
     val series: List<String>,
@@ -53,27 +55,31 @@ data class GalleryBlock(
     val language: String,
     val relatedTags: List<String>
 )
-fun getGalleryBlock(galleryID: Int) : GalleryBlock {
+fun getGalleryBlock(galleryID: Int) : GalleryBlock? {
     val url = "$protocol//$domain/$galleryblockdir/$galleryID$extension"
 
-    val doc = Jsoup.connect(url).get()
+    try {
+        val doc = Jsoup.connect(url).get()
 
-    val thumbnails = doc.select("img").map { URL(protocol + it.attr("data-src")) }
+        val thumbnails = doc.select("img").map { protocol + it.attr("data-src") }
 
-    val title = doc.selectFirst("h1.lillie > a").text()
-    val artists = doc.select("div.artist-list a").map{ it.text() }
-    val series = doc.select("a[href~=^/series/]").map { it.text() }
-    val type = doc.selectFirst("a[href~=^/type/]").text()
+        val title = doc.selectFirst("h1.lillie > a").text()
+        val artists = doc.select("div.artist-list a").map{ it.text() }
+        val series = doc.select("a[href~=^/series/]").map { it.text() }
+        val type = doc.selectFirst("a[href~=^/type/]").text()
 
-    val language = {
-        val href = doc.select("a[href~=^/index-.+-1.html]").attr("href")
-        href.slice(7 until href.indexOf("-1"))
-    }.invoke()
+        val language = {
+            val href = doc.select("a[href~=^/index-.+-1.html]").attr("href")
+            href.slice(7 until href.indexOf("-1"))
+        }.invoke()
 
-    val relatedTags = doc.select(".relatedtags a").map {
-        val href = URLDecoder.decode(it.attr("href"), "UTF-8")
-        href.slice(5 until href.indexOf('-'))
+        val relatedTags = doc.select(".relatedtags a").map {
+            val href = URLDecoder.decode(it.attr("href"), "UTF-8")
+            href.slice(5 until href.indexOf('-'))
+        }
+
+        return GalleryBlock(galleryID, thumbnails, title, artists, series, type, language, relatedTags)
+    } catch (e: Exception) {
+        return null
     }
-
-    return GalleryBlock(galleryID, thumbnails, title, artists, series, type, language, relatedTags)
 }