diff --git a/DanbooruApi.own b/DanbooruApi.own
index 7b2bc76..770a361 100644
--- a/DanbooruApi.own
+++ b/DanbooruApi.own
@@ -29,59 +29,62 @@ class DanbooruApi {
 
 class Post {
   def Post(post) {
-    this.id = int(post.id) ?? 0 
-    post.tags = tomap(post.tag_string.split(" "), def(k) = k, def(v) = 1)
+    this.id = int(post.id) ?? 0
+    this.tags = tomap(post.tag_string.split(" "), def(k) = k, def(v) = 1)
     this.post = post
   }
 
-  def isImage(post) {
-    ext = post.file_ext
+  def isImage() {
+    ext = this.post.file_ext
     return ext == "jpg" || ext == "png"
   }
 
-  def getResolution(post) {
-    w = int(post.image_width ?? 0)
-    h = int(post.image_height ?? 0)
+  def getResolution() {
+    w = int(this.post.image_width ?? 0)
+    h = int(this.post.image_height ?? 0)
     if w == 0 || h == 0 return ""
     return "" + w + "x" + h
   }
 
-  def getImageUrl(post) {
-    fileSize = post.file_size ?? 0
+  def getImageUrl() {
+    fileSize = this.post.file_size ?? 0
     if (fileSize >= 9500000) {
-      return post.large_file_url
+      return this.post.large_file_url
     }
-    return post.file_url
+    return this.post.file_url
   }
 
-  def getSampleImageUrl(post) {
-    return post.large_file_url
+  def getSampleImageUrl() {
+    return this.post.large_file_url
   }
 
-  def getScore(post) = int(post.score ?? 0)
+  def containsTags(tags) = stream(tags)
+    .anyMatch(def(t) = arrayKeyExists(t, this.tags))
 
-  def getArtists(post) {
-    return match int(post.tag_count_artist ?? 0) {
+  def getScore() = int(this.post.score ?? 0)
+
+  def getArtists() {
+    return match int(this.post.tag_count_artist ?? 0) {
       case 0: []
-      case 1: [post.tag_string_artist]
-      case _: post.tag_string_artist.split(" ")
+      case 1: [this.post.tag_string_artist]
+      case _: this.post.tag_string_artist.split(" ")
     }
   }
 
-  def getCharacters(post) {
-    return match int(post.tag_count_character ?? 0) {
+  def getCharacters() {
+    return match int(this.post.tag_count_character ?? 0) {
       case 0: []
-      case 1: [post.tag_string_character]
-      case _: post.tag_string_character.split(" ")
+      case 1: [this.post.tag_string_character]
+      case _: this.post.tag_string_character.split(" ")
     }
   }
 
-  def getSource(post) {
-    src = post.source
+  def getSource() {
+    src = this.post.source
     if src.contains("twitter") {
       return src.replace("twitter", "x")
     }
-    pixivId = post.pixiv_id ?? 0
+    pixivId = this.post.pixiv_id ?? 0
     if pixivId {
       return "https://www.pixiv.net/en/artworks/" + pixivId
     }
diff --git a/danboo.own b/danboo.own
index b527227..67fb028 100644
--- a/danboo.own
+++ b/danboo.own
@@ -14,7 +14,7 @@ posts = api.getPosts(config.danbooru.params)
 lastPostId = getLastPostId()
 skipToPostId = lastPostId
 filteredPosts = stream(posts)
-  .filter(def(p) = p.isImage(p.post))
+  .filter(def(p) = p.isImage())
   .sortBy(def(p) = p.id)
   .dropWhile(def(p) = p.id <= skipToPostId)
   .peek(def(p) = lastPostId = p.id)
@@ -24,35 +24,32 @@ setLastPostId(lastPostId)
 // Process
 blacklistTags = config.danbooru.blacklistTags
 for post : filteredPosts {
-  p = post.post
   // Check global blacklist
-  blacklisted = stream(blacklistTags)
-    .anyMatch(def(tt) = arrayKeyExists(tt, p.tags))
+  blacklisted = post.containsTags(blacklistTags)
   if (blacklisted) {
     continue
   }
-  score = post.getScore(p)
+  score = post.getScore()
 
   for target : config.targets {
     minScore = target.minScore ?? 0
     if (score < minScore) continue
 
-    matched = stream(target.tags)
-      .anyMatch(def(tt) = arrayKeyExists(tt, p.tags))
+    matched = post.containsTags(target.tags)
     if (!matched) continue
 
-    url = "https://danbooru.donmai.us/posts/" + p.id
+    url = "https://danbooru.donmai.us/posts/" + post.id
     println "%s: %s -> %s".sprintf(newDate(), url, target.name)
 
     caption = getCaption(post)
-    buttonText = sprintf("%s 📈%d", post.getResolution(p), score)
+    buttonText = sprintf("%s 📈%d", post.getResolution(), score)
     markup = jsonencode({"inline_keyboard": [
       [{"text":buttonText, "url":url}]
     ]})
     bot.invoke("sendPhoto", {
       "chat_id": target.chat,
       "message_thread_id": target.topic,
-      "photo": post.getImageUrl(p),
+      "photo": post.getImageUrl(),
       "parse_mode": "html",
       "caption": caption,
       "reply_markup": markup
@@ -61,7 +58,7 @@ for post : filteredPosts {
       bot.invoke("sendPhoto", {
         "chat_id": target.chat,
         "message_thread_id": target.topic,
-        "photo": post.getSampleImageUrl(p),
+        "photo": post.getSampleImageUrl(),
         "parse_mode": "html",
         "caption": "small " + caption,
         "reply_markup": markup
@@ -84,14 +81,13 @@ def strToHashtag(str) =
     .replaceAll("\s+", "_")
 
 def getCaption(post) {
-  p = post.post
-  characters = post.getCharacters(p)
+  characters = post.getCharacters()
   if characters.length > 0 {
     charactersHashTag = map(characters, ::strToHashtag).joinToString(" ")
   } else {
     charactersHashTag = "#original"
   }
-  sourceUrl = post.getSource(p)
+  sourceUrl = post.getSource()
   return "%s | <a href=\"%s\">source</a>".sprintf(
     charactersHashTag,
     sourceUrl