namespace :db do

  migrator = lambda do |version|
    require_relative 'db'
    Sequel.extension :migration
    Sequel::Migrator.apply(DB, 'migrate', version)
  end

  namespace :migrate do

    desc "Perform migration up to latest migration available"
    task :up do
      migrator.call(nil)
    end

    desc "Perform migration all the way down (erase all data)"
    task :down do
      migrator.call(0)
    end

  end

  desc "Erase all data, then bring back to latest migration"
  task :reset do
    migrator.call(0)
    Sequel::Migrator.apply(DB, 'migrate')
  end
  
  #desc "Migrate to a specific version"
  #task :migrate do |version|
  #end

end