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

import os
import sys
import socket
import time
import config

pubsock=config.value['pubsock']

if 'HOME' in os.environ:
    privsock=os.environ['HOME']+'/tld-ftp-admin/var/privsock'
    socketname=privsock
else:
    socketname=pubsock

def connect(name=None):
    global sock
    sock=socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
    sock.connect(socketname)
    if not name:
        name = "pid_%d_name_%s" % (os.getpid(), sys.argv[0])
    sock.send(bytearray('name %s\0' % name, encoding='utf-8'))

def login_passwd(login, passwd):
    'Return cookie if ok'
    sock.send(bytearray('linp %s\n%s\0' % (login, passwd), encoding='utf-8'))
    retval=sock.recv(256).decode("utf-8")
    if retval=='FAIL':
        return ''
    else:
        return retval[3:]

def login_cookie(cookie):
    'Return login if ok'
    sock.send(bytearray('linc %s\0' % cookie, encoding='utf-8'))
    retval=sock.recv(256).decode('utf-8')
    if retval=='FAIL':
        return ''
    else:
        return retval[3:]

def logout():
    sock.send(bytearray('lout\0', encoding='utf-8'))

def lock(path, hard=False):
    def dolock():
        if hard:
            sock.send(bytearray('lckh %s\0' % path, encoding='utf-8'))
        else:
            sock.send(bytearray('lcks %s\0' % path, encoding='utf-8'))
        return sock.recv(20).decode("utf-8")
    for i in range(3):
        retcode=dolock()
        if retcode=="OK":
            return True
        elif retcode=="HARD":
            return False
        if i!=2:
            time.sleep(1)
    return False
    
def unlock(path):
    sock.send(bytearray('ulck %s\0' % path, encoding='utf-8'))
    ret = sock.recv(20).decode("utf-8")
    if ret == "OK":
        return True
    return False

def log(msg):
    sock.send(bytearray('log1 %s\0' % msg, encoding='utf-8'))

def locks_dump():
    sock.send(bytearray('slck\0', encoding='utf-8'))
    ret = sock.recv(4096).decode("utf-8")
    if ret == "NLCK":
        return "No locks held"

#    nbytes = int(ret.split("BLOB:")[1])
#    ret = sock.recv(nbytes).decode("utf-8")
    return ret

def gettree():
    sock.send(bytearray('gett\0', encoding='utf-8'))
    pkgs=[]
    len=int(sock.recv(6).decode("utf-8"))
    if len:
        for pkg in sock.recv(len).decode("utf-8").split('\0'):
            tmp=pkg.split('\n')
            pkgs.append((tmp[0], int(tmp[1]), int(tmp[2])))
    return pkgs