module ActiveImagePersist

# File lib/active_image_persist.rb, line 6
def attach_img_to(_obj, params)
  return if @keys.blank? || !params.is_a?(ActionController::Parameters) || _obj.blank?
  begin
    @keys.each do |k|
      s = k.to_s.gsub('{:', '').gsub('_attributes=>:', '.').gsub('}', '')
      obj = _obj
      file = k.is_a?(Hash) ? params[k.first[0].to_s][k.first[1].to_s] : params[k]
      cache = k.is_a?(Hash) ? cookies["#{k.first[0].to_s}_#{k.first[1].to_s}".to_sym] : cookies[k]
      if k.is_a?(Hash)
        s_ar = s.split('.')
        obj = _obj.send(s_ar[0])
        s = s_ar[1]
      end

      if file.present?
        obj.send(s).purge if obj.send(s).attached?
        obj.send(s).attach(file)
      elsif cache.present?
        obj.send(s).purge if obj.send(s).attached?
        obj.send(s).attach(ActiveStorage::Blob.find_by(key: cache))
      end
    end
  rescue; end
  delete_cache
end

# File lib/active_image_persist.rb, line 46
def delete_cache
  return if @keys.blank?
  begin
    @keys.each do |k|
      cache_sym = k.is_a?(Hash) ? "#{k.first[0].to_s}_#{k.first[1].to_s}".to_sym : k
      cookies.delete cache_sym
    end
  rescue; end
end

# File lib/active_image_persist.rb, line 32
def persist_img params
  return if @keys.blank? || !params.is_a?(ActionController::Parameters)
  begin
    @keys.each do |k|
      file = k.is_a?(Hash) ? params[k.first[0]][k.first[1]] : params[k]
      cache_sym = k.is_a?(Hash) ? "#{k.first[0].to_s}_#{k.first[1].to_s}".to_sym : k
      if file.present?
        img = ActiveStorage::Blob.create_and_upload!(io: file, filename: file.original_filename)
        cookies[cache_sym] = img.key
      end
    end
  rescue; end
end

# File lib/active_image_persist.rb, line 56
def persisted_img(k=nil, klass='', style='')
  begin
    cache_sym = k.is_a?(Hash) ? "#{k.first[0].to_s}_#{k.first[1].to_s}".to_sym : k
    blob = ActiveStorage::Blob.find_by(key: cookies[cache_sym])
    unless blob.blank?
      ("<img src='#{url_for(blob)}' style='#{style}' class='#{klass}'>").html_safe
    else
      nil
    end
  rescue; end
end

# File lib/active_image_persist.rb, line 68
def setup_persist_img arr
  return if arr.blank? || !arr.is_a?(Array)
  @keys = arr
end