class Async::IO::Endpoint

def self.each(specifications, &block)
	return to_enum(:each, specifications) unless block_given?
	
	specifications.each do |specification|
		yield try_convert(specification)
	end
end

def self.parse(string, **options)
	uri = URI.parse(string)
	
	self.public_send(uri.scheme, uri.host, uri.port, **options)
end

def self.socket(socket, **options)
	SocketEndpoint.new(socket, **options)
end

def self.ssl(*args, ssl_context: nil, hostname: nil, **options)
	SSLEndpoint.new(self.tcp(*args, **options), ssl_context: ssl_context, hostname: hostname)
end

def self.tcp(*args, **options)
	args[3] = ::Socket::SOCK_STREAM
	
	HostEndpoint.new(args, **options)
end

def self.try_convert(specification)
	if specification.is_a? self
		specification
	elsif specification.is_a? Array
		self.send(*specification)
	elsif specification.is_a? String
		self.parse(specification)
	elsif specification.is_a? ::BasicSocket
		self.socket(specification)
	elsif specification.is_a? Generic
		self.new(specification)
	else
		raise ArgumentError.new("Not sure how to convert #{specification} to endpoint!")
	end
end

def self.udp(*args, **options)
	args[3] = ::Socket::SOCK_DGRAM
	
	HostEndpoint.new(args, **options)
end

def self.unix(path, type = ::Socket::SOCK_STREAM, **options)
	UNIXEndpoint.new(path, type, **options)
end

def accept(backlog = Socket::SOMAXCONN, &block)
	bind do |server|
		server.listen(backlog)
		
		server.accept_each(&block)
	end
end

def bound
	wrappers = []
	
	self.each do |endpoint|
		wrapper = endpoint.bind
		wrappers << wrapper
		
		yield wrapper
	end
	
	return wrappers
ensure
	wrappers.each(&:close) if $!
end

def each
	return to_enum unless block_given?
	
	yield self
end

def hostname
	@options[:hostname]
end

def initialize(**options)
	@options = options.freeze
end

def linger
	@options[:linger]
end

def local_address
	@options[:local_address]
end

def reuse_address
	@options[:reuse_address]
end

def reuse_port
	@options[:reuse_port]
end

def timeout
	@options[:timeout]
end

def with(**options)
	dup = self.dup
	
	dup.options = @options.merge(options)
	
	return dup
end