# coding: utf8

import MySQLdb


class noaMysql(object):

	def __init__(self, credentials):
		credentials['use_unicode'] = True
		self.__conn = MySQLdb.connect(**credentials)
		self.__swearwords = []
		self.__quotes = []
		self.__users = {
			"admin" : [],
			"moderator" : [],
			"privileged" : [],
			"default" : []
		}

		self.__loadData()


	def __loadData(self):
		"""
		Get data from MySQL tables
		"""

		#Load users privileges
		cursor = self.__conn.cursor(MySQLdb.cursors.DictCursor)

		cursor.execute("SELECT * FROM users")

		for row in cursor.fetchall():
			self.__users[row['role']].append(row['nickname'])

		
		# Load swearwords

		cursor.execute("SELECT * FROM swearwords")

		for row in cursor.fetchall():
			self.__swearwords.append(row['swearword'])

		# Load quotes
		cursor = self.__conn.cursor(MySQLdb.cursors.DictCursor)

		cursor.execute("SELECT * FROM quotes")

		for row in cursor.fetchall():
			self.__quotes.append(row['quote'])


	#######################################

	def addSwearword(self, swearword):
		"""
		Append a new swearword into database
		"""
		cursor = self.__conn.cursor()

		cursor.execute('INSERT INTO swearwords (swearword) VALUES("%s")' % (swearword))

		self.__conn.commit()

		self.__swearwords.append(swearword)

	def getSwearwords(self):
		"""
		Returns ban words
		"""
		return self.__swearwords

	def delSwearword(self, swearword):
		"""
		Remove ban word from database
		"""

		try:
			index = self.__swearwords.index(swearword)

		except ValueError:
			return None
		

		cursor = self.__conn.cursor()

		cursor.execute('DELETE FROM swearwords WHERE swearword = "%s"' % (swearword))

		self.__conn.commit()

		del self.__swearwords[index]

		return index


	#######################################

	def addQuote(self, quote):
		"""
		Append a new swearword into database
		"""
		cursor = self.__conn.cursor()

		cursor.execute('INSERT INTO quotes (quote) VALUES("%s")' % (quote))

		self.__conn.commit()

		self.__quotes.append(quote)

	def getQuote(self, index):
		"""
		Returns quotes
		"""
		try:
			return self.__quotes[index]
		except IndexError:
			return None

	#######################################

	def getUsers(self):
		"""
		Return users
		"""
		return self.__users