import logging
import logging.handlers
import signal
import sys

from configparser import ConfigParser
from pathlib import Path

from .watcher import Watcher

conffile = Path('config.ini')

if not conffile.exists():
    print(f"{conffile} missing, exiting")
    sys.exit(1)

config = ConfigParser(empty_lines_in_values=False)
config.read(conffile)

if 'logging' not in config:
    config.add_section('logging')

# Basic logging settings
baselogger = logging.getLogger('arec-watcher')
if baselogger.hasHandlers():
    baselogger.handlers = []
log_level = config['logging'].get('level', 'ERROR')
baselogger.setLevel(log_level)

fmt = logging.Formatter('%(levelname)s in %(name)s: %(message)s')

stderrlog = logging.StreamHandler()
stderrlog.setLevel(log_level)
stderrlog.setFormatter(fmt)
baselogger.addHandler(stderrlog)

# Mail logging settings
if 'mail_level' in config['logging']:
    from_addr = config['logging']['mail_from']
    to_addr = config['logging']['mail_to']
    subject = config['logging']['mail_subject']
    maillog = logging.handlers.SMTPHandler('localhost',
                                           from_addr,
                                           [to_addr],
                                           subject)
    maillog.setLevel(config['logging']['mail_level'])
    maillog.setFormatter(fmt)
    baselogger.addHandler(maillog)


watch = Watcher(Path(config['arec-watcher']['watchdir']),
                config['arec-watcher']['notify_url'])
watch.start()

try:
    signal.pause()
except KeyboardInterrupt:
    watch.shutdown()