artemeff · June 8, 2016 10:40 · Jun 7, 2016
diff --git a/generate_share_image_with_text.rb b/generate_share_image_with_text.rb
@@ -0,0 +1,147 @@
+class SharePhoto
+
+  attr_reader :image
+
+  SRC_PATH = Rails.root.join("app/assets/images/private_share/")
+
+  def self.update_all
+    source_files = SRC_PATH.join("src/backgrounds")
+
+    Dir.foreach(source_files).each do |image_name|
+      next if image_name == "." or image_name == ".." or image_name == ".DS_Store"
+      share_photo = SharePhoto.new(image_name)
+      share_photo.render
+      share_photo.image.format "png"
+
+      FileUtils.mv share_photo.image.path, SRC_PATH.join("v3").join(File.basename(image_name, ".*") + ".png")
+    end
+  end
+
+  def self.update_vk_all
+    source_files = SRC_PATH.join("vk/src/backgrounds")
+
+    Dir.foreach(source_files).each do |image_name|
+      next if image_name == "." or image_name == ".." or image_name == ".DS_Store"
+
+      share_photo = SharePhoto.new(image_name, "vk/")
+      share_photo.render_vk
+      # share_photo.image.format "png"
+
+      FileUtils.mv share_photo.image.path, SRC_PATH.join("vk2").join(image_name)
+    end
+  end
+
+  def initialize(source_background, project_prefix = "")
+    @project_prefix = project_prefix
+    @background_path = private_share_path("backgrounds/#{source_background}")
+  end
+
+  def render
+    @image = background
+
+    @image = add_text(@image, " Путешествие\n на двоих\n от Hotellook") do |t|
+      t.pointsize '80'
+      t.interline_spacing "20"
+    end
+
+    hl_logo = MiniMagick::Image.open private_share_path('hl_logo.png')
+    @image = add_logo(@image, hl_logo)
+
+    cta = MiniMagick::Image.open private_share_path('cta_win.png')
+    @image = add_button(@image, cta)
+
+    label = MiniMagick::Image.open private_share_path('label.png')
+    @image = add_label(@image, label)
+
+    # @image.format "png"
+
+    @image
+  rescue MiniMagick::Error => error
+    Rails.logger.error "Error generate image"
+    Rollbar.report_exception(error)
+
+    nil
+  end
+
+  def render_vk
+    @image = background
+
+    @image = add_text(@image, " Путешествие\n на двоих\n от Hotellook", x: 14, y: 50) do |t|
+    t.pointsize '34'
+    t.interline_spacing "8"
+    end
+
+    # hl_logo = MiniMagick::Image.open private_share_path('hl_logo.png')
+    # @image = add_logo(@image, hl_logo)
+
+    cta = MiniMagick::Image.open private_share_path('cta_win.png')
+    @image = add_button(@image, cta)
+
+    @image.format "jpg"
+
+    @image
+  rescue MiniMagick::Error => error
+    Rails.logger.error "Error generate image"
+    Rollbar.report_exception(error)
+
+    nil
+  end
+
+  def add_text(image, message, x: 110, y: 170)
+    text_color =  "#ffffffff"
+    escape = ->(str) { str.gsub("'", "\\\\'") }
+
+    image.combine_options do |c|
+      # NorthWest, North, NorthEast, West, Center, East, SouthWest, South, or SouthEast
+      #c.gravity 'Center'
+
+      # for more info see(http://www.imagemagick.org/Usage/fonts/#advanced)
+      c.font font_path("Intro")
+      c.family "Intro"
+
+      c.weight "600"
+      c.style "Normal"
+      c.quality "100"
+
+      c.undercolor "none"
+      yield(c) if block_given?
+      c.fill text_color
+      c.draw("text #{x},#{y} '#{escape[message]}'")
+    end
+  end
+
+  def background
+    MiniMagick::Image.open @background_path
+  end
+
+  def add_logo(background, logo)
+    background.composite(logo) do |c|
+      c.compose "src-over"
+    end
+  end
+
+  def add_button(background, logo)
+    background.composite(logo) do |c|
+      c.compose "src-over"
+    end
+  end
+
+  def add_label(background, label)
+    background.composite(label) do |c|
+      c.compose "src-over"
+    end
+  end
+
+  private
+
+  def private_share_path(path)
+    SRC_PATH.join(@project_prefix).join("src").join(path)
+  end
+
+  def font_path(file_name)
+    "#{Rails.root}/app/assets/fonts/#{file_name}.ttf".tap do |path|
+      raise "Error font not found: #{path}" unless File.exist?(path)
+    end
+  end
+
+end
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