import drivers.input.keyboard.keyboard as keyboard
import drivers.usb.hid.usb_kbd as usb_kbd
import drivers.serial.uart.serial as serial
import sched.sched as sched


define SERVICE_KEYBOARD = 1

class KeyboardService:
    th: sched.Thread*
    running: int
    usb_kbd_th: sched.Thread*

    def __init__(self):
        self.th = None
        self.running = 0
        self.usb_kbd_th = None


def kbd_thread(arg: rawptr) -> int:
    serial.puts("[kbd_svc] started\n")
    while True:
        if keyboard.has_data():
            sc: uint8 = keyboard.read_scancode()
        else:
            sched.Scheduler._yield()
    return 0

def usb_kbd_thread(arg: rawptr) -> int:
    serial.puts("[usb_kbd_svc] started\n")
    evt: usb_kbd.usb_kbd_event
    while True:
        if usb_kbd.has_data():
            usb_kbd.read_event(&evt)
        else:
            sched.Scheduler._yield()
    return 0


kbd_svc: KeyboardService = KeyboardService()

def start() -> int:
    global kbd_svc
    kbd_svc.__init__()
    keyboard.init()
    serial.puts("[kbd_svc] PS/2 keyboard initialized, IRQ1 installed\n")
    usb_kbd.init()
    kbd_svc.running = 1
    return 0