import json
import sys
from itertools import imap
import os.path
from pprint import pprint
import atexit

from dirset import DirSet
from messagenet import Messagenet


def read_pass_file(fname):
    with open(fname) as buf:
        user = buf.readline().strip()
        pwd = buf.readline().strip()
    return user, pwd


def save_calls(calls, datadir):
    s = DirSet(datadir)
    for call in imap(lambda t: '\t'.join(t), calls):
        if s.add(call):  # wasn't existing before
            print 'NEW: %s' % call


def replhelp():
    return '''
help              - show this message
calllog           - show every call, done and received
         IN       - show every inbound call
         OUT      - show every outbound call
forward  $NUMBER  - forward calls to number
forward  STOP     - disable forwarding
currency          - how rich are you ?
'''


def main():
    conf = json.load(open(os.path.join(
        os.path.dirname(sys.argv[0]),
        'defaultconf.json')))
    if len(sys.argv) == 2:
        conf.update(json.load(open(sys.argv[1])))
    user, password = read_pass_file(conf['credfile'])
    with Messagenet() as mn:  # conf['browserdriver'])
        # readline {{{2
        try:
            import readline
            readline.read_init_file()
        except ImportError:  # readline not supported on your system
            pass
        except:
            print "Some error with readline; who cares"
        histfile = os.path.join(os.path.dirname(__file__),
                                '.mncli_history')
        if os.path.exists(histfile):
            readline.read_history_file(histfile)
        atexit.register(readline.write_history_file, histfile)

        def _completer(text, state):
            commands = ('help', 'quit', 'calllog', 'forward', 'currency')
            options = [c for c in commands if c.startswith(text)]
            if readline.get_begidx() != 0:
                return None
            if state < len(options):
                return options[state]
            return None
        readline.parse_and_bind('tab: complete')
        readline.set_completer(_completer)
        # }}}

        mn.login(user, password)
        print "messagenet command-line. type help for help. type quit for quit"
        while True:
            try:
                cmdline = raw_input('> ').strip()
            except EOFError:
                break
            if not cmdline:
                continue
            cmd = cmdline.split()[0]
            args = cmdline.split()[1:]
            if cmd == 'help':
                print replhelp()
            elif cmd in ('quit', 'exit', ':wq'):
                break
            elif cmd == 'calllog':
                if not args or 'IN' in args:
                    inb = tuple(mn.get_inbound_calls())
                    print "=== IN  ==="
                    pprint(inb[:5])
                if not args or 'OUT' in args:
                    outb = tuple(mn.get_outbound_calls())
                    print "=== OUT ==="
                    pprint(outb[:5])
            elif cmd == 'forward':
                if not args:
                    print mn.get_forward()
                elif args[0] == 'STOP':
                    mn.set_forward(False)
                else:
                    mn.set_forward(args[0])
            elif cmd == 'currency':
                print mn.get_currency()
            else:
                print "  Invalid command '%s'; type 'help' to get help" % cmd


if __name__ == '__main__':
    main()

# vim: set fdm=marker: