From 54efe0da3d283f3706f5f1fd23a7a2ea113d394a Mon Sep 17 00:00:00 2001
From: Leon van Kammen <leonvankammen@gmail.com>
Date: Tue, 18 Nov 2025 17:45:59 +0100
Subject: [PATCH] cleanup hooks + added gltf-JSON section in show-template +
 added mastodonpost2image hook

---
 .../hook.d/experience_updated/200-to-gltf.rb  |  60 ++---------
 .../experience_updated/250-to-textures.rb     | 101 ++++++++++++++++++
 .../experience_updated/300-package_janusxr.rb |   9 +-
 .../experience_updated/300-package_mml.rb     |   5 +
 .../500-mastodon-post2image.rb                |  96 +++++++++++++++++
 .../src/app/app/views/models/show.html.erb    |  22 ++++
 6 files changed, 238 insertions(+), 55 deletions(-)
 create mode 100755 manyfold/root/hook.d/experience_updated/250-to-textures.rb
 create mode 100755 manyfold/root/hook.d/experience_updated/500-mastodon-post2image.rb

diff --git a/manyfold/root/hook.d/experience_updated/200-to-gltf.rb b/manyfold/root/hook.d/experience_updated/200-to-gltf.rb
index f99541e..076c998 100755
--- a/manyfold/root/hook.d/experience_updated/200-to-gltf.rb
+++ b/manyfold/root/hook.d/experience_updated/200-to-gltf.rb
@@ -14,36 +14,6 @@ filename = ARGV[0]
 require 'base64'
 require 'json'
 
-## Updates the 'uri' of an image in a GLTF hash when a matching PNG filename is found.
-##
-## gltf: a parsed JSON hash from a .gltf file
-## png_path: path to the PNG file to embed
-##
-## returns: true if updated successfully, false if not found
-#def update_gltf_image(gltf, png_path)
-#  # Get base name (without extension)
-#  name = File.basename(png_path, '.png')
-#
-#  # Find image entry with the same name
-#  image_entry = gltf['images']&.find { |img| img['name'] == name }
-#
-#  unless image_entry
-#    warn "No image named '#{name}' found in GLTF"
-#    return false
-#  end
-#
-#  # Read and base64-encode the PNG file
-#  data = File.binread(png_path)
-#  encoded = Base64.strict_encode64(data)
-#
-#  # Update the URI field with the base64-encoded PNG data URI
-#  image_entry['uri'] = "data:image/png;base64,#{encoded}"
-#
-#  puts "Updated image '#{name}' in GLTF"
-#  true
-#end
-
-
 begin
 
   # Change the directory
@@ -55,36 +25,20 @@ begin
   ext                = File.extname(filename)
   filenameWithoutExt = File.basename(filename, ext)
 
-  if ! XRForge::MODEL_EXT.any?( ext )
+  if ! XRForge::MODEL_EXT.any?( ext ) || ext == ".gltf"
     exit(0) # not a 3d file
   end
 
   logfile = File.join( File.dirname(filename), ".xrforge/log.txt" )
   XRForge.log("✅ generating gltf", logfile)
-  gltf_path = ".xrforge/#{filenameWithoutExt}.gltf"
+  gltf_path = ".xrforge/scene.gltf"
   system("assimp export #{filename} #{gltf_path}")
   system("assimp extract #{filename} | sed 's|/.*/||g'")
-
-  # Read and parse the GLTF JSON
-  gltf = JSON.parse(File.read(gltf_path))
-
-  # Ensure images section exists
-  unless gltf['images'] && gltf['images'].is_a?(Array)
-    abort("No 'images' array found in #{gltf_path}")
-  end
-
-  # Iterate through the images array
-  gltf['images'].each_with_index do |img, i|
-    name = img['name']
-    next unless name && !name.empty?
-
-    old_filename = "website_img#{i}.png"
-    new_filename = "#{name}.png"
-
-    if File.exist?(old_filename)
-      XRForge.log("✅ Renaming #{old_filename} -> #{new_filename}", logfile)
-      File.rename(old_filename, new_filename)
-    end
+  
+  # tag it!
+  if ! data['keywords'].include?('gltf')
+    data['keywords'].push('gltf')
+    File.write("datapackage.json", JSON.pretty_generate(data) )
   end
 
   XRForge.log(" ", logfile)
diff --git a/manyfold/root/hook.d/experience_updated/250-to-textures.rb b/manyfold/root/hook.d/experience_updated/250-to-textures.rb
new file mode 100755
index 0000000..7dd3c6e
--- /dev/null
+++ b/manyfold/root/hook.d/experience_updated/250-to-textures.rb
@@ -0,0 +1,101 @@
+#!/usr/bin/env ruby
+
+require 'json'
+require_relative './../../xrforge.rb'
+
+# Check if a filename is provided
+if ARGV.length != 1
+  puts "Usage: #{$0} <path/to/experience/somefile.xxx>"
+  exit 1
+end
+
+puts "TODO"
+exit 0
+
+filename = ARGV[0]
+
+require 'base64'
+require 'json'
+
+# Updates the 'uri' of an image in a GLTF hash when a matching PNG filename is found.
+#
+# gltf: a parsed JSON hash from a .gltf file
+# png_path: path to the PNG file to embed
+#
+# returns: true if updated successfully, false if not found
+def update_gltf_image(gltf, png_path)
+  # Get base name (without extension)
+  name = File.basename(png_path, '.png')
+
+  # Find image entry with the same name
+  image_entry = gltf['images']&.find { |img| img['name'] == name }
+
+  unless image_entry
+    warn "No image named '#{name}' found in GLTF"
+    return false
+  end
+
+  # Read and base64-encode the PNG file
+  data = File.binread(png_path)
+  encoded = Base64.strict_encode64(data)
+
+  # Update the URI field with the base64-encoded PNG data URI
+  image_entry['uri'] = "data:image/png;base64,#{encoded}"
+
+  puts "Updated image '#{name}' in GLTF"
+  true
+end
+
+begin
+
+  # Change the directory
+  dir = File.dirname(filename)
+  Dir.chdir( File.dirname(filename) )
+  # Read and parse the JSON file
+  data = JSON.parse( File.read( "datapackage.json" ) )
+
+  ext                = File.extname(filename)
+  filenameWithoutExt = File.basename(filename, ext)
+
+  if ! XRForge::MODEL_EXT.any?( ext )
+    exit(0) # not a 3d file
+  end
+
+  logfile = File.join( File.dirname(filename), ".xrforge/log.txt" )
+  XRForge.log("✅ unpacking textures", logfile)
+  gltf_path = ".xrforge/#{filenameWithoutExt}.gltf"
+  system("assimp export #{filename} #{gltf_path}")
+  system("assimp extract #{filename} | sed 's|/.*/||g'")
+
+  # Read and parse the GLTF JSON
+  gltf = JSON.parse(File.read(gltf_path))
+
+  # Ensure images section exists
+  unless gltf['images'] && gltf['images'].is_a?(Array)
+    abort("No 'images' array found in #{gltf_path}")
+  end
+
+  # Iterate through the images array
+  gltf['images'].each_with_index do |img, i|
+    name = img['name']
+    next unless name && !name.empty?
+
+    old_filename = "website_img#{i}.png"
+    new_filename = "#{name}.png"
+
+    if File.exist?(old_filename)
+      XRForge.log("✅ Renaming #{old_filename} -> #{new_filename}", logfile)
+      File.rename(old_filename, new_filename)
+    end
+  end
+
+  XRForge.log(" ", logfile)
+
+rescue Errno::ENOENT
+  puts "File #{filename} not found"
+rescue JSON::ParserError
+  puts "Error parsing JSON from #{filename}"
+rescue => e
+  puts "An error occurred: #{e.message}"
+end
+
diff --git a/manyfold/root/hook.d/experience_updated/300-package_janusxr.rb b/manyfold/root/hook.d/experience_updated/300-package_janusxr.rb
index fd15ef8..653e7f6 100755
--- a/manyfold/root/hook.d/experience_updated/300-package_janusxr.rb
+++ b/manyfold/root/hook.d/experience_updated/300-package_janusxr.rb
@@ -5,7 +5,7 @@ require_relative './../../xrforge.rb'
 
 # Check if a filename is provided
 if ARGV.length != 1
-  puts "Usage: #{$0} <path/to/experience/somefile.xxx>"
+  puts "Usage: #{$0} <path/to/experience/datapackage.json>"
   exit 1
 end
 
@@ -13,6 +13,11 @@ filename = ARGV[0]
 
 begin
 
+  # dont run for each file-update
+  if ! filename.end_with?("datapackage.json")
+    exit 0 
+  end
+
   # Change the directory
   dir = File.dirname(filename)
   Dir.chdir( File.dirname(filename) )
@@ -68,7 +73,7 @@ begin
           <Assets>
             <assetobject id="experience" src="#{federate_drive_host}/#{model_file.gsub("#","%23")}"/>
           </Assets>
-          <Room #{ data['keywords'].include?('singleuser') ? "private='true'" : ""}>
+          <Room pbr="true" #{ data['keywords'].include?('singleuser') ? "private='true'" : ""}>
             <object pos="0 0 0" collision_id="experience" id="experience" />
           </Room>
         </FireBoxRoom>
diff --git a/manyfold/root/hook.d/experience_updated/300-package_mml.rb b/manyfold/root/hook.d/experience_updated/300-package_mml.rb
index b220507..fba5154 100755
--- a/manyfold/root/hook.d/experience_updated/300-package_mml.rb
+++ b/manyfold/root/hook.d/experience_updated/300-package_mml.rb
@@ -11,6 +11,11 @@ end
 
 filename = ARGV[0]
 
+# dont run for each file-update
+if ! filename.end_with?("datapackage.json")
+  exit 0 
+end
+
 begin
 
   # Change the directory
diff --git a/manyfold/root/hook.d/experience_updated/500-mastodon-post2image.rb b/manyfold/root/hook.d/experience_updated/500-mastodon-post2image.rb
new file mode 100755
index 0000000..f9c3d2e
--- /dev/null
+++ b/manyfold/root/hook.d/experience_updated/500-mastodon-post2image.rb
@@ -0,0 +1,96 @@
+#!/usr/bin/env ruby
+
+require 'json'
+require 'rss'
+require 'open-uri'
+require 'cgi'
+require_relative './../../xrforge.rb'
+
+# Check if a filename is provided
+if ARGV.length != 1
+  puts "Usage: #{$0} <path/to/experience/somefile.xxx>"
+  exit 1
+end
+
+filename = ARGV[0]
+  
+# dont run for each file-update
+if ! filename.end_with?("datapackage.json")
+  exit 0 
+end
+
+begin
+  # Change the directory
+  Dir.chdir( File.dirname(filename) )
+  # Read and parse the JSON file
+  data     = JSON.parse( File.read( "datapackage.json" ) )
+
+  data['keywords'].any? do |tag|
+    if tag.match?(/@.*@.*\./)  # scan for activitypub handle (@foo@mastodon.online e.g.) 
+      APHandle = tag
+    end
+  end
+
+  if ! APHandle # nothing to do
+    exit 0
+  end
+
+  APHandle = "@vladh@merveilles.town"
+
+  logfile = File.join( File.dirname(filename), ".xrforge/log.txt" )
+  XRForge.log("✅ starting Mastodon post2image", logfile)
+
+  parts  = APHandle.split("@")
+  server = parts[2].sub(/@/,"")
+  rssUrl = "https://#{server}/@#{parts[1]}.rss"
+  XRForge.log("✅ checking #{rssUrl}", logfile)
+
+  feed = RSS::Parser.parse(URI.open(rssUrl, 'User-Agent' => 'Ruby-RSS-Client'))
+
+  puts feed.channel.title 
+  puts feed.channel.link
+
+  first_item = feed.items.first
+  if first_item
+    description = CGI.unescapeHTML(first_item.description.to_s).gsub(/<[^>]*>/, '')
+    description = description.length > 150 ? description = description[0,200] + " (..)" : description
+  else
+    XRForge.log("❌ did not find post", logfile)
+    exit 0 
+  end
+  
+  puts description
+
+  # look for first image 
+  MEDIA_REGEX = /<media:content url=['"]([^'"]+)['"]/
+  img = feed.to_s.match(MEDIA_REGEX)
+  if img and img[1] and img[1].match(/(png|jpg)/)
+    imgurl = img[1]
+  end
+
+  text     = "\n\"#{description}\"\n\n~ #{feed.channel.title}\n#{feed.channel.link}"
+  textFile = ".xrforge/mastodon-post.txt" 
+  File.open(textFile,'w') do |file|
+    file.puts text
+  end
+
+  cmd = "magick -size 800x800 -background white -pointsize 48 -interline-spacing 10 -fill \\#555 -gravity center -font /usr/local/lib/ruby/3.4.0/rdoc/generator/template/darkfish/fonts/Lato-Regular.ttf caption:@#{textFile} mastodon-post.png"
+  puts cmd
+  system(cmd)
+
+  XRForge.log(" ", logfile)
+
+rescue OpenURI::HTTPError => e
+  # Handle HTTP errors (e.g., 404 not found, 403 forbidden)
+  puts "Error fetching feed: #{e.message}"
+  exit
+rescue => e
+  # Handle other parsing or connection errors
+  puts "An error occurred: #{e.message}"
+rescue Errno::ENOENT
+  puts "File #{filename} not found"
+rescue JSON::ParserError
+  puts "Error parsing JSON from #{filename}"
+rescue => e
+  puts "An error occurred: #{e.message}"
+end
diff --git a/manyfold/usr/src/app/app/views/models/show.html.erb b/manyfold/usr/src/app/app/views/models/show.html.erb
index 6b1dbc8..e3dae16 100644
--- a/manyfold/usr/src/app/app/views/models/show.html.erb
+++ b/manyfold/usr/src/app/app/views/models/show.html.erb
@@ -187,6 +187,28 @@
                 </div>
               </td>
             </tr>
+            <tr>
+              <td>
+                <i class="bi bi-filetype-json" role="img"></i>
+              </td>
+              <td>
+                <%= link_to "glTF JSON", ENV['FEDERATE_DRIVE_HOST']+"/"+@model.library.name+"/"+@model.path.gsub("#","%23")+"/.xrforge/scene.gltf" %>
+                <label for="toggle_gltf"><i class="bi bi-info-circle"></i></label>
+                <div class="toggle-box">
+                  <input type="checkbox" id="toggle_gltf" hidden>
+                  <div class="hidden-tooltip">
+                    <i class="bi bi-arrow-90deg-up"></i>&nbsp;
+                    <small>
+                      This is the glTF JSON URL.<br>
+                      This is an opensource fallback-mechanism for developers/engine's which don't support <a href="https://xfragment.org" target="_blank">XR Fragments</a>.
+                      deeplinks.<br><br>
+                      Instead of <b>https://my.org/foo.glb#chair</b> they can do:
+                      <code><pre>$ curl <gltfURL> | jq '.meshes[] | select(.name == "chair")'</pre></code>
+                    </small>
+                  </div>
+                </div>
+              </td>
+            </tr>
           <% end %>
 
           <% if @model.collection %>