class_name UDPBroadcast

const addres_list: Dictionary = {
    'ПРД-Н1': [50011, "10.1.1.11"],
    'ПРД-В1': [50012, "10.1.1.12"],
    'ПРД-К1': [50013, "10.1.1.13"],
    'ПРД-Н2': [50021, "10.1.1.21"],
    'ПРД-В2': [50022, "10.1.1.22"],
    'ПРД-К2': [50023, "10.1.1.23"],
    'ПРД-Н3': [50031, "10.1.1.31"],
    'ПРД-В3': [50032, "10.1.1.32"],
    'ПРД-К3': [50033, "10.1.1.33"],
    'ПРД-Н4': [50041, "10.1.1.41"],
    'ПРД-В4': [50042, "10.1.1.42"],
    'ПРД-К4': [50043, "10.1.1.43"],
}
const broadcast_addr: Array = [50000, "10.1.1.255"]
#const bind_addr: Array = [50_000, "10.1.1.70"] TODO: Порт по умолчанию
var _socket: SocketUDP
var self_name: String
var _timer: Timer


func _init(name: String):
    self_name = name
    _socket = SocketUDP.new()
    _timer = Timer.new()
    _timer.wait_time = 1.0 / 3.0
    _timer.timeout.connect(_on_timer_timeout)
    
    if addres_list.has(name):
        var port: int = addres_list[name][0]
        var addr: String = addres_list[name][1]
        bind_unit_addres(port, addr)
    else:
        push_error("Неизвестное устройство: %s" % name)


func bind_unit_addres(port_for_bind: int, addr_for_bind: String) -> void:
    print('Привязка адреса: %s' % addr_for_bind)
    var bind_result = _socket.bind(port_for_bind, addr_for_bind)
    if bind_result != OK:
        push_error("Не удалось привязаться к %s: %s" % [addr_for_bind, error_string(bind_result)])


func start_broadcast() -> void:
    _timer.start()


func stop_broadcast() -> void:
    _timer.stop()


func send_broadcast(message: String) -> bool:
    _socket.set_broadcast_enabled(true)
    var data: PackedByteArray = message.to_utf8_buffer()
    _socket.send_to(broadcast_addr[1], broadcast_addr[0], data)
    return true


func close_udp_unit() -> void:
    _timer.stop()
    _socket.close()


func add_timer_to_scene(parent: Node) -> void:
    parent.add_child(_timer)


func _on_timer_timeout() -> void:
    send_broadcast("hello")


class SocketUDP extends PacketPeerUDP:
    func send_to(addr: String, port: int, data: PackedByteArray):
        set_dest_address(addr, port)
        var rc: = put_packet(data)
        if rc != OK:
            push_error('%s: %s:%s' % [error_string(rc), addr, port])