auto-generate image captions

bin/encrypt

@@ -1,5 +1,7 @@
 #!/usr/bin/env ruby
 
+require "open3"
+
 file = ARGV.pop || raise("please supply a filename")
 
 raise("file '#{file}' does not exist") unless File.exist?(file)
@@ -13,7 +15,22 @@ raise("file '#{file}' does not exist") unless File.exist?(file)
     -iter 1000000
 )
 
-output = %[{{<dither #{ File.basename(file) } "782x600" />}}]
+caption_cmd = ["codex", "exec", "caption this image: #{file}"]
+caption_output, status = Open3.capture2e(*caption_cmd)
+
+unless status.success?
+  warn "Caption generation failed:\n#{caption_output}"
+  exit 1
+end
+
+caption = caption_output.split("\n").last.to_s.strip
+
+if caption.empty?
+  warn "Caption output was empty."
+  exit 1
+end
+
+output = %[{{<dither #{ File.basename(file) } "782x600">}}#{ caption }{{</dither>}}]
 
 IO.popen("pbcopy", "w") { |pb| pb.write(output) }