Class: Fileboost::VariantTransformer

Inherits:
Object
  • Object
show all
Defined in:
lib/fileboost/variant_transformer.rb

Overview

Maps ActiveStorage variant transformations to Fileboost URL parameters

Constant Summary collapse

TRANSFORMATION_MAPPING =

Maps ActiveStorage transformation operations to Fileboost parameters

{
  # Resize operations
  resize_to_limit: { fit: "scale-down" },
  resize_to_fit: { fit: "contain" },
  resize_to_fill: { fit: "cover" },
  resize_and_pad: { fit: "pad" },

  # Quality settings
  quality: { param: "q" },

  # Format settings
  format: { param: "f" },

  # Rotation
  rotate: { param: "r" },

  # Crop operations - need special handling
  crop: { special: :crop_handler }
}.freeze

Class Method Summary collapse

Class Method Details

.transform_variant_params(variant) ⇒ Object

Convert ActiveStorage variant transformations to Fileboost parameters



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# File 'lib/fileboost/variant_transformer.rb', line 26

def self.transform_variant_params(variant)
  return {} unless variant.respond_to?(:variation)

  transformations = variant.variation.transformations
  params = {}

  transformations.each do |operation, value|
    case operation
    when :resize_to_limit, :resize_to_fit, :resize_to_fill, :resize_and_pad
      resize_params = handle_resize_operation(operation, value)
      params.merge!(resize_params)

    when :quality
      params["q"] = normalize_quality(value)

    when :format
      params["f"] = normalize_format(value)

    when :rotate
      params["r"] = normalize_rotation(value)

    when :crop
      crop_params = handle_crop_operation(value)
      params.merge!(crop_params) if crop_params

      # Add more transformations as needed
    end
  end

  params
end