# Default console to use if there is only one host.
OBMC_CONSOLE_HOST_TTY:fb-compute = "ttyS2"

# FBOSS platforms use ttyS1
OBMC_CONSOLE_HOST_TTY:fb-fboss = "ttyS1"

# TTYs that are reserved for non-console purposes.
OBMC_CONSOLE_TTY_SKIP = "4"

# Calculate the TTY assignments for the hosts.
def fb_get_consoles(d):
    hosts = len(d.getVar('OBMC_HOST_INSTANCES', True).split())

    if hosts <= 1:
        obmc_console_host_tty = d.getVar('OBMC_CONSOLE_HOST_TTY', True)
        if not obmc_console_host_tty:
            bbfatal("OBMC_CONSOLE_HOST_TTY is not set")
        return obmc_console_host_tty

    skipped = \
        [ int(i) for i in d.getVar('OBMC_CONSOLE_TTY_SKIP', True).split() ]
    consoles = \
        [ f"ttyS{i}" for i in sorted(set(range(0,16)).difference(skipped)) ]

    return " ".join(consoles[:hosts])
fb_get_consoles[vardeps] += "OBMC_HOST_INSTANCES OBMC_CONSOLE_HOST_TTY OBMC_CONSOLE_TTY_SKIP"

OBMC_CONSOLE_TTYS = "${@fb_get_consoles(d)}"
OBMC_CONSOLE_TTYS:fb-nohost = ""
OBMC_CONSOLE_TTYS[vardeps] += "fb_get_consoles"

# Calculate the TTY assignments for the NICs.
def fb_get_consoles_nic(d):
    nic_instances = d.getVar('OBMC_NIC_INSTANCES', True)
    if not nic_instances:
        return ""

    consoles = \
        [ f"ctrlcpnic{int(i) + 1}" for i in nic_instances.split()]

    return " ".join(consoles)
fb_get_consoles_nic[vardeps] += "OBMC_NIC_INSTANCES"

OBMC_CONSOLE_TTYS_NIC = "${@fb_get_consoles_nic(d)}"
OBMC_CONSOLE_TTYS_NIC[vardeps] += "fb_get_consoles_nic"