#!/usr/bin/env python3
# This file is placed in the Public Domain.
#
# pylint: disable=C0413,W0212,W0611


"""SBN - Skull, Bones and Number (OTP-CR-117/19)

    sbn  <cmd> [key=val] [key==val]
    sbn  [-a] [-c] [-h] [-v]
    sbnd

    options are:

    -a     load all modules
    -c     start console
    -h     show help
    -v     use verbose

    the cmd command show available commands.
    
    $ sbn cmd
    cfg,cmd,dpl,err,exp,imp,mod,mre,nme,pwd,rem,res,rss,thr

"""


import getpass
import os
import pathlib
import pwd
import readline
import sys
import termios
import time


from sbn.client  import Client, cmnd, init, scan
from sbn.default import Default
from sbn.disk    import Workdir
from sbn.errors  import Errors, errors
from sbn.event   import Event
from sbn.log     import Logging, debug
from sbn.parser  import parse
from sbn.run     import broker


from sbn import modules


Cfg             = Default()
Cfg.dis         = ""
Cfg.mod         = "cmd,err,log,mod,req,slg,tdo,thr,tmr"
Cfg.name        = "sbn"
Cfg.opts        = ""
Cfg.version     = "100"
Cfg.wdr         = os.path.expanduser(f"~/.{Cfg.name}")
Cfg.pidfile     = os.path.join(Cfg.wdr, f"{Cfg.name}.pid")


Workdir.workdir = Cfg.wdr


class Console(Client):

    "Console"

    def __init__(self):
        Client.__init__(self)
        broker.add(self)

    def announce(self, txt):
        "disable announce."

    def callback(self, evt):
        "wait for callback."
        Client.callback(self, evt)
        evt.wait()

    def poll(self):
        "poll console and create event."
        evt = Event()
        evt.orig = object.__repr__(self)
        evt.txt = input("> ")
        evt.type = "command"
        return evt

    def say(self, _channel, txt):
        "print to console"
        txt = txt.encode('utf-8', 'replace').decode()
        print(txt)


def wrap(func):
    "restore console."
    old2 = None
    try:
        old2 = termios.tcgetattr(sys.stdin.fileno())
    except termios.error:
        pass
    try:
        func()
    except (KeyboardInterrupt, EOFError):
        print("")
    finally:
        if old2:
            termios.tcsetattr(sys.stdin.fileno(), termios.TCSADRAIN, old2)
    errors()


def main():
    "main"
    parse(Cfg, " ".join(sys.argv[1:]))
    Workdir.skel()
    if "v" in Cfg.opts and "d" not in Cfg.opts:
        Errors.out = Logging.out = print
    if "a" in Cfg.opts:
        Cfg.mod = ",".join(modules.__dir__())
    if "v" in Cfg.opts:
        dte = " ".join(time.ctime(time.time()).replace("  ", " ").split()[1:])
        debug(f'{dte} {Cfg.name.upper()} {Cfg.opts.upper()} {Cfg.mod.upper()}')
    if "h" in Cfg.opts:
        print(__doc__)
    scan(modules, Cfg.mod, Cfg.sets.dis)
    if "c" in Cfg.opts:
        init(modules, Cfg.mod, Cfg.sets.dis)
        csl = Console()
        csl.start()
        while 1:
            time.sleep(1.0)
    elif Cfg.otxt:
        cmnd(Cfg.otxt, print)


if __name__ == "__main__":
    wrap(main)
