"""
Import or export from dec to banana or from banana to dec. Thx to itec (https://git.lattuga.net/itec/banana).
"""

import prof
import re

_links = {}
_lastlink = {}

def dec2banana(num, dictstart = None, shiftend = None, minlength = None, dictionary = None):
    #defaults
    if dictstart is None: dictstart = 0
    if shiftend is None: shiftend = 0
    if minlength is None: minlength = 0
    if dictionary is None: dictionary = [list("bcdfglmnprstvz"), list("aeiou")]
    
    numdict = len(dictionary)
    v = num
    st = ""
    l = 0

    i = (numdict - 1 + dictstart + shiftend) % numdict
    while not (v == 0 and i == (numdict - 1 + dictstart) % numdict and l >= minlength):
        r = v % len(dictionary[i])
        v = int(v / len(dictionary[i]))
        st = dictionary[i][r] + st
        i = (i - 1) % numdict
        l += 1
   
    return(st)
    
def banana2dec(banana, dictstart = None, shiftend = None, dictionary = None):
    #defaults
    if dictstart is None: dictstart = 0
    if shiftend is None: shiftend = 0
    if dictionary is None: dictionary = [list("bcdfglmnprstvz"), list("aeiou")] #, list("123456")

    numdict = len(dictionary)
    if (len(banana) - shiftend) % numdict != 0:
        return("Banana non valida")
    v = 0
    for i in range(len(banana)):
        r = (numdict + i + dictstart) % numdict
        try:
            v = v * len(dictionary[r]) + dictionary[r].index(banana[i])
        except:
            return("Carattere non valido in posizione", i+1)
    
    return(v)

def isbanana(banana, dictstart = None, shiftend = None, dictionary = None):
    #defaults
    if dictstart is None: dictstart = 0
    if shiftend is None: shiftend = 0
    if dictionary is None: dictionary = [list("bcdfglmnprstvz"), list("aeiou")] #, list("123456")

    numdict = len(dictionary)
    if (len(banana) - shiftend) % numdict != 0:
        return(False)
    for i in range(len(banana)):
        r = (numdict + i + dictstart) % numdict
        if banana[i] not in dictionary[r]:
            return(False)

    return(True)

def callback_dec(x):
    b = x[0].strip().lower()
    if isbanana(b):
        return "%s" % banana2dec(b)
    else:
        return x[0]

def text2dec(text):
    text = re.sub(r"[A-Z][A-Z]*", callback_dec, text)
    return text

def callback(x):
    return "%s" % dec2banana(int(x[0], base=10)).upper()

def text2banana(text):
    text = re.sub(r"[0-9][0-9]*", callback, text)
    return text

def _cmd_banana(cmd=None,text=None):
    if not cmd or not text:
        prof.cons_show("Try: /help banana")
    if cmd == "enc":
        proc = text2banana(text)
        recipient = prof.get_current_recipient()
        room = prof.get_current_muc()
        if recipient:
            prof.send_line(proc)
        elif room:
            prof.send_line(proc)
        elif prof.current_win_is_console():
            prof.cons_show(proc)
    elif cmd == "dec":
        proc = text2dec(text)
        recipient = prof.get_current_recipient()
        room = prof.get_current_muc()
        if recipient:
            prof.chat_show(recipient, proc)
        elif room:
            prof.room_show(room, proc)
        elif prof.current_win_is_console():
            prof.cons_show(proc)

def _process_message(jid, current_jid, message):
    links = re.search(r'[A-Z][A-Z]*',message).string.split('\n')
    if links:
        if jid not in _links:
            _links[jid] = []

        for link in links:
            if link not in _links[jid]:
                _links[jid].append(link)

        if current_jid == jid:
            prof.completer_add("/banana dec", _links[jid])

        _lastlink[jid] = links[len(links)-1]



def prof_post_chat_message_display(jid, resource, message):
    current_jid = prof.get_current_recipient()
    _process_message(jid, current_jid, message)

def prof_post_room_message_display(room, nick, message):
    current_jid = prof.get_current_muc()
    _process_message(jid, current_jid, message)

def prof_on_room_history_message(room, nick, message, timestamp):
    current_jid = prof.get_current_muc()
    _process_message(jid, current_jid, message)

def prof_init(version, status, account_name, fulljid):
    synopsis = [ 
            "/banana enc <message>" 
            "/banana dec <message>" 
            ]
    description = "/banana enc: bananify a message.\n/banana dec: debananify a message."
    args = [
        [ "<message>", "The message to be bananified or debananified" ]
    ]
    examples = [
        "/banana enc 7467986 \n/banana dec GESUCANE"
    ]
    
    prof.register_command("/banana", 0, 2, synopsis, description, args, examples, _cmd_banana)
    prof.completer_add("/banana", ["enc","dec"])