# vi: encoding=utf-8 ts=8 sts=4 sw=4 et

import os
import time

CmdError="CmdError"

def parse(con):
    if '\0' not in con.data:
        return
    cmds=con.data.split('\0')[:-1]

    for cmd in cmds:
        con.data=con.data[len(cmd)+1:]
        cmdname=cmd[:4]
        if cmdname in cmdlist:
            cmdlist[cmdname](con, cmd[5:])
        else:
            raise CmdError
            # TODO: log this

locks={}

def lock(con, arg, hard):
    if arg not in locks:
        locks[arg]=hard
        con.sock.send("OK")
    elif locks[arg]:
        con.sock.send("HARD") # Hard lock - you can go get a cup of tea
    else:
        con.sock.send("SOFT") # Soft lock - try in a second or two
        
    
def unlock(con, arg):
    if arg in locks:
        del locks[arg]

def lock_soft(con, arg):
    lock(con, arg, False)

def lock_hard(con, arg):
    lock(con, arg, True)

logfile=open(os.environ['HOME']+'/pld-ftp-admin/var/log', 'a')

def log(con, msg):
    logfile.write('%s -- %s\n' % (time.strftime('%Y-%m-%d %H:%M:%S'), msg))
    logfile.flush()

cmdlist={'lcks':lock_soft, 'lckh':lock_hard, 'ulck':unlock, 'log1':log}