package mtmc.os

import java.util.*

enum class SysCall(value: Int) {
  EXIT(0x00),
  RINT(0x01),
  WINT(0x02),
  RSTR(0x03),
  WCHR(0x04),
  RCHR(0x05),
  WSTR(0x06),
  PRINTF(0x07),
  ATOI(0x08),

  RFILE(0x10),
  WFILE(0x11),
  CWD(0x12),
  CHDIR(0x13),
  DIRENT(0x14),
  DFILE(0x15),

  RND(0x20),
  SLEEP(0x21),
  TIMER(0x22),

  FBRESET(0x30),
  FBSTAT(0x31),
  FBSET(0x32),
  FBLINE(0x33),
  FBRECT(0x34),
  FBFLUSH(0x35),
  JOYSTICK(0x3A),
  SCOLOR(0x3B),

  MEMCPY(0x40),

  DRAWIMG(0x50),
  DRAWIMGSZ(0x51),
  DRAWIMGCLIP(0x52),

  ERROR(0xFF);

  val value: Byte

  init {
    this.value = value.toByte()
  }

  companion object {
    fun isSysCall(call: String): Boolean {
      try {
        valueOf(call.uppercase(Locale.getDefault()))
        return true
      } catch (e: IllegalArgumentException) {
        return false
      }
    }

    @JvmStatic
    fun getValue(call: String): Byte {
      return valueOf(call.uppercase(Locale.getDefault())).value
    }

    fun getString(syscallCode: Byte): String? {
      for (o in entries) {
        if (o.value == syscallCode) {
          return o.name.lowercase(Locale.getDefault())
        }
      }
      return null
    }
  }
}