# A request received over HTTP, is build by `HttpRequestParser`
class HttpRequest
	serialize

	private init is old_style_init do end

	# HTTP protocol version
	var http_version: String

	# Method of this request (GET or POST)
	var method: String

	# The full URL requested by the client (including the `query_string`)
	var url: String

	# The resource requested by the client (only the page, not the `query_string`)
	var uri: String

	# The string following `?` in the requested URL
	var query_string = ""

	# The header of this request
	var header = new HashMap[String, String]

	# The raw body of the request.
	var body = ""

	# The content of the cookie of this request
	var cookie = new HashMap[String, String]

	# The arguments passed with the GET method,
	var get_args = new HashMap[String, String]

	# The arguments passed with the POST method
	var post_args = new HashMap[String, String]

	# The arguments passed with the POST or GET method (with a priority on POST)
	var all_args = new HashMap[String, String]

	# Returns argument `arg_name` in the request as a String
	# or null if it was not found.
	# Also cleans the String by trimming it.
	# If the Strings happens to be empty after trimming,
	# the method will return `null`
	#
	# NOTE: Prioritizes POST before GET
	fun string_arg(arg_name: String): nullable String do
		if not all_args.has_key(arg_name) then return null
		var s = all_args[arg_name].trim
		if s.is_empty then return null
		return s
	end

	# Returns argument `arg_name` as an Int or `null` if not found or not an integer.
	#
	# NOTE: Prioritizes POST before GET
	fun int_arg(arg_name: String): nullable Int do
		if not all_args.has_key(arg_name) then return null
		var i = all_args[arg_name]
		if not i.is_int then return null
		return i.to_i
	end

	# Returns argument `arg_name` as a Bool or `null` if not found or not a boolean.
	#
	# NOTE: Prioritizes POST before GET
	fun bool_arg(arg_name: String): nullable Bool do
		if not all_args.has_key(arg_name) then return null
		var i = all_args[arg_name]
		if i == "true" then return true
		if i == "false" then return false
		return null
	end
end