#!/usr/bin/env python
# -*- coding: utf-8 -*-

from string import punctuation
import subprocess
from database import DataBase
import os
import urllib.request
from urllib.parse import urlencode
import json
import settings
import re

class MessageWorker:
    def __init__(self, db, stop_words = 'assets/stop-word.ru', settings = settings):
        self.stop_words = stop_words
        self.db = db
        self.telegram_key = settings.parser.get('bot', 'telegram_key')
        self.telegram_api = settings.parser.get('bot', 'telegram_api')
        self.me = self.getMe()
        print("My name is %s" % self.me['result']['username'])

    def getMe(self):
        url =  self.telegram_api + 'bot' + self.telegram_key + '/getMe'
        print(url)
        urllib.request.Request(url)
        request = urllib.request.Request(url)
        raw = urllib.request.urlopen(request).read().decode()
        return json.loads(raw)

    def handleUpdate(self, msg):
        try:
            try:
                input_message = msg['message']['text'].replace('@' + self.me['result']['username'], '')
            except:
                input_message = msg['message']['text']
            if input_message == '/scheme':
                conf_id = msg['message']['chat']['id']
                user_id = msg['message']['from']['id']
                chat_title = msg['message']['chat']['title']
                self.db.add_conf(conf_id, chat_title)
                self.send(id=conf_id, msg='```\n' + self.db.scheme + '\n```')
                return True

            if input_message == '/stat':
                conf_id = msg['message']['chat']['id']
                user_id = msg['message']['from']['id']
                chat_title = msg['message']['chat']['title']
                self.db.add_conf(conf_id, chat_title)

                message = """Here is your top:\n"""
                top = self.db.get_top(
                    user_id=user_id,
                    conf_id=conf_id
                )
                for word in top:
                    message += '*%s*: %s\n' % (word[1], word[0])
                self.send(id=conf_id, msg=message)
                return True

            if input_message == '/reset':
                conf_id = msg['message']['chat']['id']
                user_id = msg['message']['from']['id']
                chat_title = msg['message']['chat']['title']
                self.db.add_conf(conf_id, chat_title)

                message = """Your stat has been resetted."""
                self.db.reset(
                    conf_id=conf_id,
                    user_id=user_id)
                return True

            if input_message[:4] == '/sql':
                conf_id = msg['message']['chat']['id']
                user_id = msg['message']['from']['id']
                chat_title = msg['message']['chat']['title']
                self.db.add_conf(conf_id, chat_title)
                sql = msg['message']['text'][5:]

                res = self.db.command(sql)
                if 'syntax' in str(res) \
                or 'ambiguous' in str(res):
                  self.send(id=conf_id, msg=str(res))
                  return False
                try:
                  msg = '```\n'
                  for z in res:
                    for i in z:
                      msg = msg + str(i) + '\t'
                    msg = msg + '\n'
                except:
                  msg = res
                self.send(id=conf_id, msg=msg + ' ```')
                return True

            if '@here' in input_message:
                conf_id = msg['message']['chat']['id']
                user_id = msg['message']['from']['id']
                chat_title = msg['message']['chat']['title']
                self.db.add_conf(conf_id, chat_title)
                if msg['message']['text'] != '@here':
                    message = msg['message']['text'].replace('@here', '\n')
                else:
                    message = """I summon you!\n"""

                users = self.db.here(
                    user_id=user_id,
                    conf_id=conf_id
                )
                for user in users:
                    message += ' @%s ' % (user[0])
                self.send(id=conf_id, msg=message)
                return True
        except:
            return False
        try:
            text = msg['message']['text']
            username = msg['message']['from']['username']
            try:
                last_name = msg['message']['from']['last_name']
            except:
                last_name = '_null'
            try:
                first_name = msg['message']['from']['first_name']
            except:
                first_name = '_null'
            user_id = msg['message']['from']['id']
            chat_id = msg['message']['chat']['id']
            chat_title = msg['message']['chat']['title']
            #print(self.clean_text(text))
        except:
            return False
        
        collection = self.clean_text(text)
        
        self.db.add_user(username,
            user_id,
            first_name,
            last_name)

        self.db.add_conf(chat_id, chat_title)

        for word in collection:
            self.db.add_relation(word=word, user_id=user_id, conf_id=chat_id)
        
        
    def clean_text(self, s):
        file = open(self.stop_words, 'rt')
        sw = file.read().split('\n')
        file.close()
        s = re.sub(r'(https?:\/\/)?([\da-z\.-]+)\.([\/\w\.-]*)*\/?\S','',s,flags=re.MULTILINE)
        print(s)
        # dirty hack with dat fucking file
        fh = open("tmp.txt","w")
        fh.write(s)
        fh.close()
        cmd = "./assets/mystem -nlwd < tmp.txt"
        ps = subprocess.Popen(cmd,shell=True,stdout=subprocess.PIPE)
        output = ps.communicate()[0]
        os.remove("tmp.txt")
        # end of the fuckin' dirty hack
        s = output.decode('utf8')
        s = s.replace('?', '')
        s = s.split('\n')
        collection = []
        for word in s:
            if len(word) >2:
                if word not in sw:
                    collection.append(word)
                else:
                    pass
            else:
                pass
        return collection

    def send(self, id, msg):
        print(msg)
        url =  self.telegram_api + 'bot' + self.telegram_key + '/sendMessage'
        post_fields = {
            'text': msg,
            'chat_id': id,
            'parse_mode': 'Markdown',
            'disable_web_page_preview': 1
            }
        urllib.request.Request(url, urlencode(post_fields).encode())
        request = urllib.request.Request(url, urlencode(post_fields).encode())
        json = urllib.request.urlopen(request).read().decode()
        return json