# rubocop:disable Naming/MethodParameterName
module Eco
  module API
    module Common
      module Session
        class Mailer
          class AwsProvider < ProviderBase
            def send_mail(subject:, body:, to: nil, cc: nil, bcc: nil)
              ses.send_email(
                destination: fetch_destination(to: to, cc: cc, bcc: bcc),
                source:      fetch_from,
                message:     {
                  subject: {
                    charset: "UTF-8",
                    data:    subject
                  },
                  body:    {
                    # NOTE: (html) will let you send html instead
                    # you can use both at once if you like
                    text: {
                      charset: "UTF-8",
                      data:    body
                    }
                  }
                }
              )
            end

            # @return [Boolean] whether or not the mailer is configured for usage.
            def configured?
              fetch_access_key_id && fetch_secret_access_key && fetch_region
            end

            private

            def credentials
              @credentials ||= {
                id:  'AWS_ACCESS_KEY_ID',
                key: 'AWS_SECRET_ACCESS_KEY'
              }
            end

            def ses
              require 'aws-sdk-ses'
              @ses ||= Aws::SES::Client.new(
                access_key_id:     fetch_access_key_id,
                secret_access_key: fetch_secret_access_key,
                region:            fetch_region
              )
            rescue StandardError => err
              log(:error) {
                "Trying to send an email with wrong email configuration: #{err}"
              }
            end

            def fetch_destination(to: nil, cc: nil, bcc: nil)
              {
                to_addresses: [fetch_to(to)].flatten.compact.uniq
              }.tap do |dest|
                cc  = [cc].flatten.compact.uniq
                bcc = [bcc].flatten.compact.uniq
                dest.merge!(cc_addresses: cc)   unless cc.empty?
                dest.merge!(bcc_addresses: bcc) unless bcc.empty?
              end
            end

            def fetch_region
              config.mailer.region || ENV['AWS_REGION']
            end

            def fetch_server
              config.mailer.server
            end

            def fetch_message_id_domain
              config.mailer.message_id_domain
            end
          end
        end
      end
    end
  end
end

# rubocop:enable Naming/MethodParameterName