Update getpage for DamCoNuong parser (#2149)

* Update DamCoNuong.kt

* Update DamCoNuong.kt to fix "Can't find fallbackUrls"

* Update DamCoNuong.kt

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

@@ -186,33 +186,38 @@ internal class DamCoNuong(context: MangaLoaderContext) :
 	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> {
     val doc = webClient.httpGet(chapter.url.toAbsoluteUrl(domain)).parseHtml()
 
-    val scriptContent = doc.selectFirst("script:containsData(window.encryptionConfig)")
-        ?.data()
-        ?: throw ParseException("Không tìm thấy script 'window.encryptionConfig'.", chapter.url)
-
+    doc.selectFirst("script:containsData(window.encryptionConfig)")?.data()?.let { scriptContent ->
         val fallbackUrlsRegex = Regex(""""fallbackUrls"\s*:\s*(\[.*?\])""")
-    val arrayString = fallbackUrlsRegex.find(scriptContent)?.groupValues?.get(1)
-        ?: throw ParseException("Không tìm thấy mảng 'fallbackUrls' trong script.", chapter.url)
-
+        val arrayString = fallbackUrlsRegex.find(scriptContent)?.groupValues?.get(1) ?: return@let
         val urlRegex = Regex("""(https?:\\?/\\?[^"]+\.(?:jpg|jpeg|png|webp|gif))""")
-    val imageUrls = urlRegex.findAll(arrayString).map {
+        val scriptImages = urlRegex.findAll(arrayString).map {
             it.groupValues[1].replace("\\/", "/")
         }.toList()
 
-    if (imageUrls.isEmpty()) {
-        throw ParseException("Không tìm thấy URL ảnh hợp lệ nào trong 'fallbackUrls'.", chapter.url)
+        if (scriptImages.isNotEmpty()) {
+            return scriptImages.map { url ->
+                MangaPage(id = generateUid(url), url = url, preview = null, source = source)
+            }
+        }
     }
 
-    return imageUrls.map { url ->
-        MangaPage(
-            id = generateUid(url),
-            url = url,
-            preview = null,
-            source = source,
-        )
+    val tagImagePages = doc.select("div#chapter-content img").mapNotNull { img ->
+        val imageUrl = (img.attr("abs:src").takeIf { it.isNotBlank() }
+            ?: img.attr("abs:data-src").takeIf { it.isNotBlank() })
+            ?.trim()
+
+        imageUrl?.let {
+            MangaPage(id = generateUid(it), url = it, preview = null, source = source)
+        }
     }
+
+    if (tagImagePages.isNotEmpty()) {
+        return tagImagePages
     }
 
+    throw ParseException("Không tìm thấy bất kỳ nguồn ảnh nào (đã thử cả script và thẻ img).", chapter.url)
+}
+
 	private fun parseChapterDate(date: String?): Long {
 		if (date == null) return 0
 		return when {