# source: http://aprs.org/aprs11/tocalls.txt
ALTNET_DESCRIPTION = 'An ALTNET is defined to be ANY AX.25 TOCALL that is NOT one of the normal APRS TOCALL'

TOCALLS = {
    # slightly trasformed table from the source
    'AP1WWX': 'TAPR T-238+ WX station',
    'AP4Ry': 'APRS4R software interface',
    'APnnnD': 'Painter Engineering uSmartDigi D-Gate DSTAR Gateway',
    'APnnnU': 'Painter Engineering uSmartDigi Digipeater',
    'APAF': 'AFilter.',
    'APAG': 'AGATE',
    'APAGW': "SV2AGW's AGWtracker",
    'APA': 'AFilterX.',
    'APAH': 'AHub',
    'APAND1': 'APRSdroid (replaced by APDRxx',
    'APAW': 'AGWPE',
    'APB': 'Beacons or Rabbit TCPIP micros?',
    'APBL': 'BigRedBee BeeLine',
    'APBLO': 'MOdel Rocketry K7RKT',
    'APC': 'Cellular applications',
    'APCBB': 'for VE7UDP Blackberry Applications',
    'APCLEY': 'EYTraker GPRS/GSM tracker by ZS6EY',
    'APCLW': 'EYWeather GPRS/GSM WX station by ZS6EY',
    'APCLEZ': 'Telit EZ10 GSM application ZS6CEY',
    'APCY': 'Cybiko applications',
    'APRSd': 'etc',
    'APD4': 'UP4DAR platform',
    'APDD': 'DV-RPTR Modem and Control Center Software',
    'APDF': 'Automatic DF units',
    'APDG': 'D-Star Gateways by G4KLX ircDDB',
    'APDH': 'WinDV (DUTCH*Star DV Node for Windows)',
    'APDInn': 'DIXPRS - Bela, HA5DI',
    'APDK': 'KI4LKF g2_ircddb Dstar gateway software',
    'APDO': 'ON8JL Standalone DStar Node',
    'APDPRS': 'D-Star originated posits',
    'APDR': 'APrsDRoid replaces old APAND1.',
    'APDS': 'SP9UOB for dsDigi and ds-tracker',
    'APDT': 'APRStouch Tone (DTMF)',
    'APDU': 'U2APRS by JA7UDE',
    'APDW': 'DireWolf, WB2OSZ',
    'APE': 'Telemetry devices',
    'APERQ': 'Experimental tracker by PE1RXQ',
    'APF': 'Firenet',
    'APFG': 'Flood Gage (KP4DJT)',
    'APG': 'Gates, etc',
    'APGO': 'for AA3NJ PDA application',
    'APH': 'HamHud, etc',
    'APHK': 'for LA1BR tracker/digipeater',
    'API': 'Icom, etc',
    'APICQ': 'for ICQ',
    'APJA': 'JavAPRS',
    'APJE': 'JeAPRS',
    'APJI': 'jAPRSIgate',
    'APJS': 'javAPRSSrvr',
    'APK0': "Kenwood TH-D7's",
    'APK003': 'Kenwood TH-D72',
    'APK1': "Kenwood D700's",
    'APR102': 'Kenwood D710',
    'APKRAM': 'KRAMstuff.com - Mark. G7LEU',
    'APL': 'Linux applications',
    'APM': 'MacAPRS, etc',
    'APN': 'Network nodes, digis, etc',
    'APN3': 'Kantronics KPC-3 rom versions',
    'APN9': 'Kantronics KPC-9612 Roms',
    'APNA': "WB6ZSU's APRServe",
    'APND': 'DIGI_NED ssid routing ok',
    'APNM': 'MJF TNC roms',
    'APNP': 'Paccom TNC roms',
    'APNT': "SV2AGW's TNT tnc as a digi",
    'APNU': 'UIdigi; ssid routing ok',
    'APN': 'TNC-X  (K6DBG)',
    'APNK01': 'Kenwood D700 (APK101) type',
    'APNK80': 'KAM version 8.0',
    'APNKMP': 'KAM+',
    'APOA': 'OpenAPRS - Greg Carter',
    'APOT': 'OpenTrack',
    'APOD1w': 'OpenTrack with 1 wire WX',
    'APOU2k': 'OpenTrack for Ultimeter',
    'APP': 'pocketAPRS, etc',
    'APPT': 'KetaiTracker by  JF6LZE, Takeki (msg capable)',
    'APQ': 'Earthquake data',
    'APR8': 'APRSdos versions 800+',
    'APRD': 'APRSdata, APRSdr',
    'APRG': 'aprsg igate software, OH2GVE',
    'APRHH2': 'HamHud 2',
    'APRK': 'APRStk',
    'APRNOW': 'W5GGW ipad application',
    'APRRT': 'RPC electronics',
    'APRS': 'Generic, (obsolete. Digis should use APNxxx instead)',
    'APR': '>APRSmax 40 ',
    'APR': "OH2MQK's RX-igate <39",
    'APRTLM': "used in MIM's and Mic-lites, etc",
    'APRtfc': 'APRStraffic',
    'APRST': 'APRStt (Touch tone)',
    'APSK63': 'APRS Messenger -over-PSK63',
    'APSK25': 'APRS Messenger GMSK-250',
    'APTIGR': 'TigerTrack',
    'APTT': 'Tiny Track',
    'APT2': 'Tiny Track II',
    'APT3': 'Tiny Track III',
    'APTA': "K4ATM's tiny track",
    'APTW': 'Byons WXTrac',
    'APTV': 'for ATV/APRN and SSTV application',
    'APU1': 'UIview 16 bit applications',
    'APU2': 'UIview 32 bit apps',
    'APU3': 'UIview terminal program',
    'APV': 'VoIP Voice over Internet  application',
    'APVR': 'IRLP',
    'APVL': 'I-LINK',
    'APVE': 'ECHO link',
    'APW': 'WinAPRS, etc',
    'APWS': "DF4IAN's WS2300 WX station",
    'APWM': 'APRSISCE KJ4ERJ',
    'APWW': 'APRSISCE win32 version',
    'AP': 'Xastir',
    'APR': 'Xrouter',
    'APY': 'Yeasu',
    'APZ': 'Experimental',
    'APZ0': 'Xastir (old versions. See APX) ssid routing ok',
    'APZMDR': 'HaMDR trackers - hessu * hes.iki.fi' ,
    'APZPAD': 'Smart Palm',
    'APZWIT': 'MAP27 radio (Mountain Rescue) EI7IG',
}

# def filter_by_dest(aprs_destination):
#     '''
#     Just a shorthand to filter through the dict
#     '''
#     return { key:TOCALLS[key] for key in TOCALLS.keys() if aprs_destination.lower() in key.lower()}

def search_for_dest(aprs_destination):
    i = 2
    filter_by_dest = lambda to_call: { key:TOCALLS[key] for key in TOCALLS.keys() if to_call.lower() in key.lower()}
    pick_by_prefix = lambda i: filter_by_dest(aprs_destination[:i])
    results_ammount = lambda i: len(pick_by_prefix(i))
    results = {aprs_destination: ''}
    while results_ammount(i) > 0:
        if i == 6:
            break
        i += 1
        if results_ammount(i) == 1:
            return pick_by_prefix(i)
    else:
        return results

# list(pick_description(parsed["to"]).values())[0]
def pick_description(aprs_destination, filter_altnets=True):
    descr = ALTNET_DESCRIPTION if not filter_altnets else  ''
    match_tocall = lambda x: aprs_destination.lower().startswith(x.lower())
    if not match_tocall('ap'):
        # ALL, BEACON, CQ, QST, GPSxxx
        if match_tocall('ALL'):
            descr = 'ALL'
        elif match_tocall('BEACON'):
            descr = 'BEACON'
        elif match_tocall('CQ'):
            descr = 'CQ'
        elif match_tocall('QST'):
            descr = 'QST'
        elif match_tocall('GPS'):
            descr = 'GPS'
        return {aprs_destination: descr}
    else:
        return search_for_dest(aprs_destination)

def pick_pretty_description(aprs_destination, filter_altnets=True):
    '''
    For now it's just two first words from description.
    '''
    result = pick_description(aprs_destination, filter_altnets)
    return ' '.join(list(result.values())[0].split()[:2])