from bot import *

import dataset, random, time, re

def get(l,i):
  try:
    if i <= len(l) and i >= 0:
      return l[i]
    else:
      return ''
  except IndexError:
    return ''

async def rec(self, m):
  prew = shared.db['prew']
  noch = shared.db['noun']
  beg = shared.db['beg']
  end = shared.db['end']

  words = m.split(' ')

  if words[0] == 'admin' or len(words) < 2:
    return

  beg.insert(dict(word=words[0]))
  end.insert(dict(word=words[-1]))

  for w in range(len(words)):
    if w > 0:
      prew.insert_ignore(dict(pre3=get(words,w-3), pre2=get(words,w-2), pre=get(words,w-1), pro=get(words,w), pro2=get(words,w+1), pro3=get(words,w+2)),['id'])
    noch.insert(dict(word=w))

async def getNoun(self, words, c):
    if c in shared.cstate:
        oldnoun = shared.cstate[c]
    else:
        oldnoun = None

    nouns = shared.db['noun']
    out = {}
    for i in words:
        out[i] = nouns.count(word=i)
    noun = min(out, key=out.get)

    conversation = shared.db['conver']
    if oldnoun != None:
        print("adding", [oldnoun,noun])
        conversation.insert_ignore(dict(pre=oldnoun,pro=noun),['id'])

    nextnoun = [i['pro'] for i in conversation.find(pre=noun)]
    print("nextnoun:",nextnoun)
    if len(nextnoun) > 0:
        noun = random.choice(nextnoun)
    shared.cstate[c] = noun
    return noun
  
async def genOut(self, noun):
  prew = shared.db['prew']
  beg = shared.db['beg']
  end = shared.db['end']
  nouns = shared.db['noun']
  iter=0
  coun=0
  out = [noun]
  while (beg.find_one(word=out[0]) is None or nouns.count(word=out[0])-1 > iter * shared.enmul) and iter < shared.maxiter:
    try:
      out = [ random.choice(list(prew.find(pro=out[0],pro2=out[1],pro3=out[2])))['pre'] ] + out
    except IndexError:
      try:
        out = [ random.choice(list(prew.find(pro=out[0],pro2=out[1])))['pre'] ] + out
      except IndexError:
        try:
          out = [ random.choice(list(prew.find(pro=out[0])))['pre'] ] + out
        except IndexError:
          iter += 69
    iter += 1
    coun += 1
  iter = 0
  while (end.find_one(word=out[-1]) is None or nouns.count(word=out[-1])-1 > iter * shared.enmul) and iter < shared.maxiter:
    try:
      out.append(random.choice(list(prew.find(pre3=out[-3],pre2=out[-2],pre=out[-1])))['pro'])
    except IndexError:
      try:
        out.append(random.choice(list(prew.find(pre2=out[-2],pre=out[-1])))['pro'])
      except IndexError:
        try:
          out.append(random.choice(list(prew.find(pre=out[-1])))['pro'])
        except IndexError:
          iter += 69
    iter += 1
    coun += 1

  if coun <= 3:
    shared.enmul -= 1
  elif coun >= shared.maxiter:
    shared.enmul += 1

  return out


async def filter(self, c, n, m):
  if c in shared.qtime and shared.qtime[c] > time.time():
    return
  if m[:len(shared.prefix)] == shared.prefix:
    m = m[len(shared.prefix):]
    await go(self, c, n, m)
  elif m[:len(self.nickname)+1] == self.nickname+' ':
    m = m[len(self.nickname)+1:]
    await go(self, c, n, m)
  elif '#' not in c and n != self.nickname:
    await go(self, c, n, m)
  else:
    if len(m.split(' ')) > 1:
      if shared.learntime + shared.learndelay < time.time():
        await rec(self, m)
        shared.learntime = time.time()

async def go(self, c, n, m):
    await rec(self, m)
    words = re.sub(r'([\.,\?!])', r' \1', m).split()
    if words[0] == 'admin':
      return
    msg = re.sub(r' ([\.,\?!])', r'\1', ' '.join(await genOut(self, await getNoun(self, words, c))))
    if msg[-1] == "\x01" and msg[0] != "\x01":
        msg = msg[:-1]
    await self.message(c, msg)

async def init(self):
  
  shared.qtime = {}
  shared.learntime = 0

  # delay between grabbing random messages and passively
  # learning.
  shared.learndelay = 1
  # sentance ending weight, lower means longer sentances,
  # higher means shorter sentances. this will need to slowly
  # get larger as the database grows
  shared.enmul = 9
  shared.maxiter = 14

  shared.rawm['nlp'] = filter
  shared.cstate = {}