extends Control

var mime_types := MimeTypeHelper.generate_db()

var _server: HTTPServer = null

var files: Array = []


func _ready() -> void:
	_start_server()


func _start_server(port: int = 3001) -> void:
	if _server:
		return

	_server = HTTPServer.new()
	var dir := Directory.new()
	if dir.open("res://server_files") == OK:
		if dir.list_dir_begin() != OK:
			# TODO: show error to user here
			return
		var file_name := dir.get_next()
		while file_name != "":
			if !dir.current_is_dir():
				if file_name.get_extension() == "import":
					file_name = dir.get_next()
					continue

				print(file_name)

				_server.endpoint(HTTPServer.Method.GET, "/%s" % file_name, funcref(self, "_serve_file"), [file_name])

			file_name = dir.get_next()

		_server.endpoint(HTTPServer.Method.GET, "/", funcref(self, "_serve_file"), ["index.html"])


	if _server.listen(port) != OK:
		# TODO: show error to user here
		return


func _stop_server() -> void:
	if _server:
		_server = null


func _process(_delta: float) -> void:
	if _server == null:
		return

	if not _server.take_connection():
		# TODO: show error to user here
		return


func _serve_file(_request: HTTPServer.Request, response: HTTPServer.Response, binds: Array) -> void:
	var file_name: String = binds[0] as String
	print(file_name)

	var f := File.new()
	var success = f.open("res://server_files/%s" % file_name, File.READ)

	if success == OK:

		var mime := mime_types.get(file_name)
		response.header("content-type", mime.full_type)
		
		# variant
		# warning-ignore:incompatible_ternary
		var data = f.get_as_text() if mime.type == 'text' else f.get_buffer(f.get_len())

		response.data(data)
		
	else:
		response.header("content-type", "text/plain")
		response.data("500 - Read Error")


func get_mime_type(file_name: String) -> String:
	var ext := file_name.get_extension().to_lower()
	return mime_types[ext] if ext in mime_types else "application/octet-stream"