update script

tools/zhgchgli_optimize_footer.rb

@@ -1,15 +1,27 @@
+require 'net/http'
+require 'uri'
+
 class Main
     def run()
         files = Dir['_posts/zmediumtomarkdown/*.md']
         files.each do |file|
-
+            id = file.split("-").last.split(".").first
+
             lines = File.readlines(file)
             newLines = []
 
+            ch_url = "https://zhgchg.li/posts/#{id}/"
+            ch_url_exists = url_exists(ch_url)
+            ch_text = "[本文中文版本](#{ch_url}){:target=\"_blank\"}\r\n"
+
             lines.each do |line|
                 if line.include? "延伸閱讀" or line.include? "本文同步發表於" or line.include? "Like Z Realm" or line.include? "有任何問題及指教歡迎與我聯絡。" or line.include? "converted from Medium by [ZMediumToMarkdown]"
-                    id = file.split("-").last.split(".").first
-                    newLines.append("\r\n\r\n===\r\n\r\n 本文首次發表於 Medium ➡️ [**前往查看**](https://medium.com/p/#{id}){:target=\"_blank\"}\r\n")
+
+                    newLines.append("\r\n\r\n===\r\n\r\nThis article was first published in Traditional Chinese on Medium ➡️ [**View Here**](https://medium.com/p/#{id}){:target=\"_blank\"}\r\n")
+                    if ch_url_exists
+                        newLines.append(ch_text)
+                    end
+
                     break
                 end
                 newLines.append(line)
@@ -22,6 +34,17 @@ def run()
 
         puts "Optimze Markdown Footer Success!"
     end
+
+    def url_exists(url)
+        uri = URI.parse(url)
+        request = Net::HTTP.new(uri.host, uri.port)
+        request.use_ssl = (uri.scheme == 'https')
+
+        path = uri.path.empty? ? '/' : uri.path
+        response = request.request_head(path)
+
+        response.code.to_i != 404
+    end
 end
 
 main = Main.new()