require "option_parser"

require "./package/*"

root : String? = nil
args = [] of String

OptionParser.parse do |parser|
	parser.banner = "usage: package [options] <command> [arguments]"

	parser.unknown_args do |unknown_args|
		args = unknown_args
	end
end

context = Package::Context.new

context.root = root unless root.nil?

command = args[0]
args.shift

begin
	case command
	when "add"
		context.install args.map { |s| Package::Atom.from_string s }
	when "remove"
		context.remove args.map { |s| Package::Atom.from_string s }
	when "update"
		context.update_repository_cache
	end
rescue e : Package::CollisionException
	context.error e

	e.collisions.each do |file|
		context.error "  - #{file}"
	end
rescue e : Package::Exception
	context.error e
end