require 'carrierwave'
require 'securerandom'

# 日本語ファイル名のまま保存
CARRIERWAVE_SANITIZE_REGEXP = /[^[:word:]①-⑨【】「」（）・＆、　 \(\)\.\-\+]/
CarrierWave::SanitizedFile.sanitize_regexp = CARRIERWAVE_SANITIZE_REGEXP

module Bizside
  class CarrierwaveStringIO < StringIO
    attr_accessor :original_filename
    attr_accessor :content_type
    attr_accessor :file_size

    def path
      # Return non-existent path to prevent any actual file/directory from being the target of copy or move
      # because this class does not refer to any file.
      # (CarrierWave::Uploader::Base#cache! tries to copy or move a passed file to its working directory)
      File.join(CarrierWave.tmp_path, SecureRandom.uuid, File.basename(original_filename))
    end
  end
end

unless Bizside.config.within_bizside_namespace?
  # 後方互換性の維持
  CarrierwaveStringIO = Bizside::CarrierwaveStringIO
end

CarrierWave.configure do |config|
  database_yml = ERB.new(File.read(File.join('config', 'database.yml')), 0, '-').result
  database = YAML.load(database_yml)[Bizside.env]['database']

  config.root = File.join('/data', Bizside.config.add_on_name, database)

  if Bizside.config.storage.fog?
    require 'carrierwave/storage/fog'
    require 'fog/aws'

    # fog の場合は、相対パス
    config.root = config.root[1..-1]

    credentials = Bizside.config.storage.fog.credentials.to_h.symbolize_keys
    if credentials[:use_iam_profile]
      credentials = credentials.merge(role_session_name: Bizside.config.add_on_name)
    end
    config.fog_credentials = credentials

    config.fog_directory = Bizside.config.storage.fog.container
    config.fog_public = false
    config.storage = :fog

    # Patch to not set ACLs to 'private' if fog_public is false.
    # Requests to set/update ACLs fail if ACL is disabled.
    # Setting 'private' to ACLs also fails when the bucket is not in the same account as IAM user/role.
    # 'private' is applied by default so there's no need to set 'private' explicitly.
    module CarrierWave
      module Storage
        class Fog
          class File
            def acl_header
              if fog_provider == 'AWS'
                @uploader.fog_public ? { 'x-amz-acl' => 'public-read' } : {}
              elsif fog_provider == "Google"
                @uploader.fog_public ? { destination_predefined_acl: "publicRead" } : {}
              else
                {}
              end
            end
          end
        end
      end
    end

    require 'fog/aws/models/storage/directory'

    module Fog
      module AWS
        class Storage
          class Directory < Fog::Model
            def public=(new_public)
              if new_public
                @acl = 'public-read'
              else
                @acl = nil
              end
              new_public
            end
          end
        end
      end
    end

    require 'fog/aws/models/storage/file'

    module Fog
      module AWS
        class Storage
          class File < Fog::Model
            def public=(new_public)
              if new_public
                @acl = 'public-read'
              else
                @acl = nil
              end
              new_public
            end
          end
        end
      end
    end
  end

end