require 'flydata/command/sync'
require 'flydata/command/mysql_command_base'

module Flydata
  module Command
    class Mysqlbinlog < Sync
      include MysqlCommandBase

      def generate_command(dbconf, args)
        dbconf.delete('tables')
        dbconf[:custom_option_end] = args.join(' ')
        dbconf[:command] = 'mysqlbinlog'
        # --default-character-set=utf8 is not supported
        dbconf[:no_default_option] = true
        # ssl is not supported for mysql5.6 or older mysqlbinlog command
        dbconf.delete('ssl_ca')
        dbconf.delete('ssl_cipher')
        dbconf.delete('database')
        if args.empty?
          puts <<EOT
example:
1. Dump raw binlog
  flydata mysqlbinlog --raw --read-from-remote-server --result-file "binlog-" mysql-bin-changelog.xxxx
2. Dump decoded binlog data
  flydata mysqlbinlog  -vv --base64-output=decode-row --hexdump --read-from-remote-server --start-position=4 --stop-position=yyyyy mysql-bin-changelog.xxxxx > mysql-bin-changelog.xxxxx
EOT
          return
        end
        FlydataCore::Mysql::CommandGenerator::generate_mysql_cmd(dbconf)
      end
    end
  end
end