Ổ Truyện: Fix no value for _id in getListPage (#2259)

Co-authored-by: Draken <131387159+dragonx943@users.noreply.github.com>

src/main/kotlin/org/koitharu/kotatsu/parsers/site/vi/OTruyenParser.kt

@@ -1,6 +1,5 @@
 package org.koitharu.kotatsu.parsers.site.vi
 
-import org.jsoup.HttpStatusException
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
 import org.koitharu.kotatsu.parsers.MangaSourceParser
 import org.koitharu.kotatsu.parsers.config.ConfigKey
@@ -27,7 +26,6 @@ import org.koitharu.kotatsu.parsers.util.oneOrThrowIfMany
 import org.koitharu.kotatsu.parsers.util.parseJson
 import org.koitharu.kotatsu.parsers.util.parseSafe
 import org.koitharu.kotatsu.parsers.util.urlEncoded
-import java.net.HttpURLConnection
 import java.text.SimpleDateFormat
 import java.util.EnumSet
 import java.util.Locale
@@ -88,20 +86,20 @@ internal class OTruyenParser(context: MangaLoaderContext) :
                 }
 
                 else -> {
-					val tag = filter.tags.oneOrThrowIfMany()
-					if (tag != null) {
+                    if (!filter.tags.isEmpty()) {
+                        filter.tags.oneOrThrowIfMany()?.let {
                             append("/v1/api/the-loai/")
-						append(tag.key)
+                            append(it.key)
                             append("?page=")
                             append(page)
+                        }
                     } else if (filter.states.isNotEmpty()) {
                         filter.states.oneOrThrowIfMany()?.let {
                             append(
                                 when (it) {
-									MangaState.ONGOING -> "/v1/api/danh-sach/dang-phat-hanh?page=${page}"
                                     MangaState.FINISHED -> "/v1/api/danh-sach/hoan-thanh?page=${page}"
                                     MangaState.UPCOMING -> "/v1/api/danh-sach/sap-ra-mat?page=${page}"
-									else -> "/v1/api/danh-sach/dang-phat-hanh?page=${page}" // default
+                                    else -> "/v1/api/danh-sach/dang-phat-hanh?page=${page}" // ONGOING
                                 }
                             )
                         }
@@ -115,20 +113,17 @@ internal class OTruyenParser(context: MangaLoaderContext) :
 
         val json = try {
             webClient.httpGet(url).parseJson()
-		} catch (e: HttpStatusException) {
-			if (e.statusCode == HttpURLConnection.HTTP_INTERNAL_ERROR) {
+        } catch (_: Exception) {
             return emptyList()
-			} else {
-				throw e
-			}
         }
 
         val items = json.getJSONObject("data").getJSONArray("items")
         return items.mapJSON { jo ->
+            val slug = jo.getString("slug")
             Manga(
-				id = generateUid(jo.getString("_id").hashCode().toLong()),
-				url = jo.getString("slug"),
-				publicUrl = "https://otruyen.cc/truyen-tranh/${jo.getString("slug")}",
+                id = generateUid(slug.hashCode().toLong()),
+                url = slug,
+                publicUrl = "https://otruyen.cc/truyen-tranh/${slug}",
                 title = jo.getString("name"),
                 altTitles = emptySet(),
                 coverUrl = "https://img.otruyenapi.com/uploads/comics/${jo.getString("thumb_url")}",