Merge pull request #22 from chonla/main

Add preview image for social share

.direnv/flake-profile

@@ -1 +1 @@
-flake-profile-1-link
+flake-profile-4-link

.direnv/flake-profile-4-link

@@ -0,0 +1 @@
+/nix/store/w94drfg1lkr1jlkbj820c7bcfvabzycy-nix-shell-env

.github/workflows/rubyonrails.yml

@@ -23,6 +23,16 @@ jobs:
         with:
           ruby-version: '3.3.5'
           bundler-cache: true
+      - name: Install dependencies
+        run: |
+          sudo apt-get update && sudo apt-get install libfuse2
+          mkdir -p "$HOME/.local/bin"
+          curl -O 'https://imagemagick.org/archive/binaries/magick'
+          chmod u+x magick
+          mv magick "$HOME/.local/bin"
+          echo "$HOME/.local/bin" >> "$GITHUB_PATH"
+      - name: Verify dependencies
+        run: magick -version
       - name: Set up database schema
         working-directory: ./cdmm
         run: bundle install && bin/rails db:schema:load && bin/rails db:migrate

.gitignore

@@ -36,3 +36,5 @@
 
 /cdmm/app/assets/builds/*
 !/cdmm/app/assets/builds/.keep
+
+.DS_Store

cdmm/Gemfile

@@ -35,6 +35,8 @@ gem "bootsnap", require: false
 
 gem "meta-tags"
 
+gem 'rmagick'
+
 # Use Active Storage variants [https://guides.rubyonrails.org/active_storage_overview.html#transforming-images]
 # gem "image_processing", "~> 1.2"
 

cdmm/Gemfile.lock

@@ -168,10 +168,12 @@ GEM
       racc (~> 1.4)
     nokogiri (1.16.7-x86_64-linux)
       racc (~> 1.4)
+    observer (0.1.2)
     parallel (1.26.3)
     parser (3.3.5.0)
       ast (~> 2.4.1)
       racc
+    pkg-config (1.5.7)
     psych (5.1.2)
       stringio
     public_suffix (6.0.1)
@@ -231,6 +233,9 @@ GEM
     reline (0.5.10)
       io-console (~> 0.5)
     rexml (3.3.8)
+    rmagick (6.0.1)
+      observer (~> 0.1)
+      pkg-config (~> 1.4)
     rubocop (1.67.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
@@ -347,6 +352,7 @@ DEPENDENCIES
   puma (>= 5.0)
   rails (~> 7.2.1, >= 7.2.1.1)
   rails_live_reload
+  rmagick
   rubocop-rails-omakase
   selenium-webdriver
   sprockets-rails

cdmm/app/assets/config/manifest.js

@@ -1,5 +1,6 @@
 //= link_tree ../images
+//= link_directory ../fonts .ttf
 //= link_directory ../stylesheets .css
 //= link_tree ../../javascript .js
 //= link_tree ../../../vendor/javascript .js
-//= link_tree ../builds
+//= link_tree ../builds

cdmm/app/controllers/cdmm_controller.rb

@@ -1,3 +1,5 @@
+require 'rmagick'
+
 class CdmmController < ApplicationController
     include ApplicationHelper
     # Viewing
@@ -13,6 +15,88 @@ class CdmmController < ApplicationController
     # Purging
     # draft form will be purged regularly
 
+    def preview
+        options = {
+            :dimension => {
+                :width => 820,
+                :height => 320
+            },
+            :border_bar => {
+                :height => 15,
+                :color => "#336699"
+            },
+            :padding => {
+                :left => 50,
+                :top => 50
+            },
+            :title => {
+                :size => 32,
+                :font => Rails.root.join('app', 'assets', 'fonts', 'Prompt-Bold.ttf').to_s,
+                :color => "black"
+            },
+            :subtitle => {
+                :size => 24,
+                :font => Rails.root.join('app', 'assets', 'fonts', 'Prompt-Regular.ttf').to_s,
+                :color => "#505050"
+            },
+            :background => {
+                :image => Rails.root.join('app', 'assets', 'images', 'preview-background.png').to_s,
+            }
+        }
+
+
+        @form = Evaluation.find_by(form_key: params[:form_key])
+        if @form
+            image = Magick::Image.new(options[:dimension][:width], options[:dimension][:height]) { |options| options.background_color = 'white' }
+            draw = Magick::Draw.new
+
+            # Draw background
+            background_image = Magick::Image.read(options[:background][:image]).first
+            background_image.resize!(0.40)
+
+            image = image.composite(background_image, Magick::SouthEastGravity, Magick::OverCompositeOp)
+
+            # Draw top border
+            draw.fill(options[:border_bar][:color])
+            draw.rectangle(0, 0, options[:dimension][:width], options[:border_bar][:height])
+            draw.draw(image)
+
+            # Draw title
+            draw.font_weight = Magick::BoldWeight
+            draw.pointsize = options[:title][:size]
+            draw.gravity = Magick::NorthWestGravity
+            draw.annotate(image, 
+                options[:dimension][:width] - (options[:padding][:left] * 2),
+                options[:dimension][:height] - (options[:padding][:top] * 2),
+                options[:padding][:left],
+                options[:padding][:top], 
+                @form[:title]) do |opts|
+                    opts.font = options[:title][:font]
+                    opts.fill = options[:title][:color]
+            end
+
+            # Draw subtitle
+            draw.font_weight = Magick::NormalWeight
+            draw.pointsize = options[:subtitle][:size]
+            draw.gravity = Magick::NorthWestGravity
+            draw.annotate(image, 
+                options[:dimension][:width] - (options[:padding][:left] * 2),
+                options[:dimension][:height] - (options[:padding][:top] * 2),
+                options[:padding][:left],
+                options[:padding][:top] + (options[:title][:size] * 1.3), 
+                "Continuous Delivery Maturity Model") do |opts|
+                    opts.font = options[:subtitle][:font]
+                    opts.fill = options[:subtitle][:color]
+            end
+
+            image.format = 'PNG'
+
+            send_data image.to_blob, type: 'image/png', disposition: 'inline'
+        else
+            render_not_found
+        end
+    end
+
     def purge
         deleted_rows = Evaluation.where(:form_status => :draft, :created_at => ...6.hours.ago)
         deleted_count = deleted_rows.count

cdmm/config/routes.rb

@@ -5,6 +5,7 @@
   get "cdmm" => "cdmm#index", as: :evaluation_index
   post "cdmm" => "cdmm#save", as: :evaluation_save
   get "cdmm/:form_key" => "cdmm#show", as: :evaluation_show
+  get "cdmm/:form_key/preview" => "cdmm#preview"
   get "schedule/purge" => "cdmm#purge"
 
   # Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.

flake.nix

@@ -12,6 +12,7 @@
       ${system}.default = nixpkgs.legacyPackages.${system}.mkShell {
         buildInputs = with nixpkgs.legacyPackages.${system}; [
           ruby_3_3
+          imagemagick
           # playwright
           # playwright-driver
         ];