require "option_parser"
require "file_utils"
require "colorize"

require "./context.cr"
require "./recipe.cr"

extend Package

context = Context.new()
context.packaging_backend = "apk"
context.repositories << "."

requested_recipes = [] of String
download_only = false
do_not_clean = false

used_X = false
OptionParser.parse! do |parser|
	parser.banner = "Usage: package [options] <port <port <…>>>"

	parser.on("-X DIR", "--repository DIR", "Sets a ports repository for finding dependencies (default=.).") { |dir|
		unless used_X
			while context.repositories.pop?
			end
			used_X = true
		end

		context.repositories << dir
	}

	parser.on("-D", "--download-only", "Only download sources, do not build.") {
		download_only = true
	}

	parser.on("-k", "--keep-work-dir", "Do not clean after building.") {
		do_not_clean = true
	}

	parser.on("-h", "--help", "Prints this help message.") {
		puts parser
		exit 0
	}

	parser.invalid_option do |flag|
		STDERR.puts "ERROR: #{flag} is not a valid option."
		STDERR.puts parser
		exit(1)
	end

	parser.unknown_args do |arg|
		requested_recipes = arg
	end
end

found_recipes = requested_recipes.map do |name|
	puts context.find_recipe(name)
	context.find_recipe(name) || name
end

invalid_recipes = found_recipes.select &.is_a?(String)
if invalid_recipes.size > 0
	STDERR.puts "ERROR: some of the requested recipes could not be found:"
	invalid_recipes.each do |name|
		STDERR.puts "        - #{name}"
	end
	STDERR.puts "       (try using -X?)"
end

recipes = found_recipes.compact_map do |recipe_or_string|
	recipe_or_string unless recipe_or_string.is_a?(String)
end

# FIXME: Now we need to build their respective deptrees and to deduplicate
#        the list of recipes.

recipes.each do |recipe|
	puts " >> #{recipe.name}".colorize :white

	raise "oh no, download failed" unless recipe.download

	if download_only
		exit 0
	end

	raise "oh no, extraction failed" unless recipe.extract

	raise "oh no, build failed" unless recipe.build
	raise "oh no, packaging failed" unless recipe.package

	recipe.clean unless do_not_clean
end