#!/usr/bin/env python3
import argparse, os, sys

directory = os.path.dirname(os.path.realpath(__file__))

arg_parser = argparse.ArgumentParser(
    description="BitBot CLI control utility")

arg_parser.add_argument("--database", "-d",
    help="Location of the sqlite3 database file",
    default=os.path.join(directory, "databases", "bot.db"))

arg_parser.add_argument("command")

args, unknown = arg_parser.parse_known_args()

def _die(s):
    sys.stderr.write("%s\n" % s)
    sys.exit(1)

if args.command == "log":
    arg_parser.add_argument("--level", "-l", help="Log level",
        default="INFO")
elif args.command in ["rehash", "reload"]:
    pass
else:
    _die("Unknown command '%s'" % args.command)

args = arg_parser.parse_args()

sock_location = "%s.sock" % args.database
if not os.path.exists(sock_location):
    _die("Failed to connect to BitBot instance")

import json, socket, signal

def _sigint(_1, _2):
    print("")
    sys.exit(0)
signal.signal(signal.SIGINT, _sigint)


sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
sock.connect("%s.sock" % args.database)

def _send(s):
    sock.send(("%s\n" % s).encode("utf8"))

# protocol: <msgid> <command> [arg [arg ..]]
_send("0 version 0")

if args.command == "log":
    _send("1 log %s" % args.level)
elif args.command == "rehash":
    _send("1 rehash")
elif args.command == "reload":
    _send("1 reload")

read_buffer = b""

while True:
    data = sock.recv(1024)
    if not data:
        break

    data = read_buffer+data
    lines = [line.strip(b"\r") for line in data.split(b"\n")]
    read_buffer = lines.pop(-1)
    for line in lines:
        line = json.loads(line)
        if line["action"] == "log":
            print(line["data"])
        elif line["action"] == "ack" and line["data"]:
            print(line["data"])