require_relative 'lib/kgrader'

def cli
  KGrader::CLI.new Rake.application.original_dir
end

def parse_args(num, keywords = {})
  args, options = KGrader::parse_args ARGV.drop(1), num, keywords
  args.each { |arg| task arg.to_sym {} }
  args + [options]
end

task :default => :help do ; end

task :help do
  puts %{usage:
- rake list
- rake roster <course> <rosterfile> [semester=<...>]
- rake grade  <course> <assignment> [semester=<...>] [students=<...>]
              [due=<...>] [fetch=<yes/no>] [regrade=<yes/no>]
- rake commit <course> <assignment> [semester=<...>] [students=<...>]
- rake clean
- rake clobber}
end

task :list do
  cli.list
end

task :roster do
  course, rosterfile, options = parse_args 2, { :semester => :string }
  cli.roster course, options[:semester], rosterfile
end

task :grade do
  course, assignment, options = parse_args 2,
    { :semester => :string, :students => :array, :due => :datetime,
      :fetch => :bool, :regrade => :bool }
  cli.grade course, options[:semester], assignment, options
end

task :commit do
  course, assignment, options = parse_args 2,
    { :semester => :string, :students => :array }
  cli.commit course, options[:semester], assignment, options
end

task :clean do
  cli.clean
end

task :clobber do
  cli.clobber
end