from helpers import passwordHelper
from constants import gameModes
from constants import privileges
from helpers import generalFunctions
from objects import glob
from helpers import logHelper as log
import time
from constants import privileges

def getID(username):
	"""
	Get username's user ID from userID cache (if cache hit)
	or from db (and cache it for other requests) if cache miss

	username -- user
	return -- user id or 0
	"""
	# Add to cache if needed
	if username not in glob.userIDCache:
		userID = glob.db.fetch("SELECT id FROM users WHERE username = %s LIMIT 1", [username])
		if userID == None:
			return 0
		glob.userIDCache[username] = userID["id"]

	# Get userID from cache
	return glob.userIDCache[username]

def checkLogin(userID, password):
	"""
	Check userID's login with specified password

	db -- database connection
	userID -- user id
	password -- plain md5 password
	return -- True or False
	"""
	# Get password data
	passwordData = glob.db.fetch("SELECT password_md5, salt, password_version FROM users WHERE id = %s LIMIT 1", [userID])

	# Make sure the query returned something
	if passwordData is None:
		return False


	# Return valid/invalid based on the password version.
	if passwordData["password_version"] == 2:
		return passwordHelper.checkNewPassword(password, passwordData["password_md5"])
	if passwordData["password_version"] == 1:
		ok = passwordHelper.checkOldPassword(password, passwordData["salt"], passwordData["password_md5"])
		if not ok: return False
		newpass = passwordHelper.genBcrypt(password)
		glob.db.execute("UPDATE users SET password_md5=%s, salt='', password_version='2' WHERE id = %s LIMIT 1", [newpass, userID])

def exists(userID):
	"""
	Check if userID exists

	userID -- user ID to check
	return -- bool
	"""
	result = glob.db.fetch("SELECT id FROM users WHERE id = %s LIMIT 1", [userID])
	if result is None:
		return False
	else:
		return True

def getSilenceEnd(userID):
	"""
	Get userID's **ABSOLUTE** silence end UNIX time
	Remember to subtract time.time() to get the actual silence time

	userID -- userID
	return -- UNIX time
	"""
	return glob.db.fetch("SELECT silence_end FROM users WHERE id = %s LIMIT 1", [userID])["silence_end"]


def silence(userID, seconds, silenceReason, author = 999):
	"""
	Silence someone

	userID -- userID
	seconds -- silence length in seconds
	silenceReason -- Silence reason shown on website
	author -- userID of who silenced the user. Default: 999
	"""
	# db qurey
	silenceEndTime = int(time.time())+seconds
	glob.db.execute("UPDATE users SET silence_end = %s, silence_reason = %s WHERE id = %s LIMIT 1", [silenceEndTime, silenceReason, userID])

	# Loh
	targetUsername = getUsername(userID)
	# TODO: exists check im drunk rn i need to sleep (stampa piede ubriaco confirmed)
	if seconds > 0:
		log.rap(author, "has silenced {} for {} seconds for the following reason: \"{}\"".format(targetUsername, seconds, silenceReason), True)
	else:
		log.rap(author, "has removed {}'s silence".format(targetUsername), True)

def getRankedScore(userID, gameMode):
	"""
	Get userID's ranked score relative to gameMode

	userID -- userID
	gameMode -- int value, see gameModes
	return -- ranked score
	"""
	modeForDB = gameModes.getGameModeForDB(gameMode)
	return glob.db.fetch("SELECT ranked_score_"+modeForDB+" FROM users_stats WHERE id = %s LIMIT 1", [userID])["ranked_score_"+modeForDB]


def getTotalScore(userID, gameMode):
	"""
	Get userID's total score relative to gameMode

	userID -- userID
	gameMode -- int value, see gameModes
	return -- total score
	"""
	modeForDB = gameModes.getGameModeForDB(gameMode)
	return glob.db.fetch("SELECT total_score_"+modeForDB+" FROM users_stats WHERE id = %s LIMIT 1", [userID])["total_score_"+modeForDB]

def getAccuracy(userID, gameMode):
	"""
	Get userID's average accuracy relative to gameMode

	userID -- userID
	gameMode -- int value, see gameModes
	return -- accuracy
	"""
	modeForDB = gameModes.getGameModeForDB(gameMode)
	return glob.db.fetch("SELECT avg_accuracy_"+modeForDB+" FROM users_stats WHERE id = %s LIMIT 1", [userID])["avg_accuracy_"+modeForDB]

def getGameRank(userID, gameMode):
	"""
	Get userID's **in-game rank** (eg: #1337) relative to gameMode

	userID -- userID
	gameMode -- int value, see gameModes
	return -- game rank
	"""

	modeForDB = gameModes.getGameModeForDB(gameMode)
	result = glob.db.fetch("SELECT position FROM leaderboard_"+modeForDB+" WHERE user = %s LIMIT 1", [userID])
	if result is None:
		return 0
	else:
		return result["position"]

def getPlaycount(userID, gameMode):
	"""
	Get userID's playcount relative to gameMode

	userID -- userID
	gameMode -- int value, see gameModes
	return -- playcount
	"""

	modeForDB = gameModes.getGameModeForDB(gameMode)
	return glob.db.fetch("SELECT playcount_"+modeForDB+" FROM users_stats WHERE id = %s LIMIT 1", [userID])["playcount_"+modeForDB]

def getUsername(userID):
	"""
	Get userID's username

	userID -- userID
	return -- username
	"""

	return glob.db.fetch("SELECT username FROM users WHERE id = %s LIMIT 1", [userID])["username"]

def getFriendList(userID):
	"""
	Get userID's friendlist

	userID -- userID
	return -- list with friends userIDs. [0] if no friends.
	"""

	# Get friends from db
	friends = glob.db.fetchAll("SELECT user2 FROM users_relationships WHERE user1 = %s", [userID])

	if friends is None or len(friends) == 0:
		# We have no friends, return 0 list
		return [0]
	else:
		# Get only friends
		friends = [i["user2"] for i in friends]

		# Return friend IDs
		return friends

def addFriend(userID, friendID):
	"""
	Add friendID to userID's friend list

	userID -- user
	friendID -- new friend
	"""

	# Make sure we aren't adding us to our friends
	if userID == friendID:
		return

	# check user isn't already a friend of ours
	if glob.db.fetch("SELECT id FROM users_relationships WHERE user1 = %s AND user2 = %s LIMIT 1", [userID, friendID]) is not None:
		return

	# Set new value
	glob.db.execute("INSERT INTO users_relationships (user1, user2) VALUES (%s, %s)", [userID, friendID])


def removeFriend(userID, friendID):
	"""
	Remove friendID from userID's friend list

	userID -- user
	friendID -- old friend
	"""
	# Delete user relationship. We don't need to check if the relationship was there, because who gives a shit,
	# if they were not friends and they don't want to be anymore, be it. ¯\_(ツ)_/¯
	glob.db.execute("DELETE FROM users_relationships WHERE user1 = %s AND user2 = %s", [userID, friendID])


def getCountry(userID):
	"""
	Get userID's country **(two letters)**.
	Use countryHelper.getCountryID with what that function returns
	to get osu! country ID relative to that user

	userID -- user
	return -- country code (two letters)
	"""
	return glob.db.fetch("SELECT country FROM users_stats WHERE id = %s LIMIT 1", [userID])["country"]

def getPP(userID, gameMode):
	"""
	Get userID's PP relative to gameMode

	userID -- user
	return -- PP
	"""

	modeForDB = gameModes.getGameModeForDB(gameMode)
	return glob.db.fetch("SELECT pp_{} FROM users_stats WHERE id = %s LIMIT 1".format(modeForDB), [userID])["pp_{}".format(modeForDB)]

def setCountry(userID, country):
	"""
	Set userID's country (two letters)

	userID -- userID
	country -- country letters
	"""
	glob.db.execute("UPDATE users_stats SET country = %s WHERE id = %s LIMIT 1", [country, userID])

def logIP(userID, ip):
	"""
	User IP log
	USED FOR MULTIACCOUNT DETECTION
	"""
	glob.db.execute("""INSERT INTO ip_user (userid, ip, occurencies) VALUES (%s, %s, 1)
						ON DUPLICATE KEY UPDATE occurencies = occurencies + 1""", [userID, ip])

def saveBanchoSession(userID, ip):
	"""
	Save userid and ip of this token in bancho_sessions table.
	Used to cache logins on LETS requests

	userID --
	ip -- user's ip address
	"""
	glob.db.execute("INSERT INTO bancho_sessions (id, userid, ip) VALUES (NULL, %s, %s)", [userID, ip])

def deleteBanchoSessions(userID, ip):
	"""
	Delete this bancho session from DB

	userID --
	ip -- user's IP address
	"""
	try:
		glob.db.execute("DELETE FROM bancho_sessions WHERE userid = %s AND ip = %s", [userID, ip])
	except:
		log.warning("Token for user: {} ip: {} doesn't exist".format(userID, ip))

def is2FAEnabled(userID):
	"""
	Check if 2FA is enabled on an account

	userID --
	return -- True if 2FA is enabled, False if 2FA is disabled
	"""
	result = glob.db.fetch("SELECT id FROM 2fa_telegram WHERE userid = %s LIMIT 1", [userID])
	return True if result is not None else False

def check2FA(userID, ip):
	"""
	Check if an ip is trusted

	userID --
	ip -- user's IP address
	return -- True if the IP is untrusted, False if it's trusted
	"""
	if not is2FAEnabled(userID):
		return False

	result = glob.db.fetch("SELECT id FROM ip_user WHERE userid = %s AND ip = %s", [userID, ip])
	return True if result is None else False

def getUserStats(userID, gameMode):
	"""
	Get all user stats relative to gameMode with only two queries

	userID --
	gameMode -- gameMode number
	return -- dictionary with results
	"""
	modeForDB = gameModes.getGameModeForDB(gameMode)

	# Get stats
	stats = glob.db.fetch("""SELECT
						ranked_score_{gm} AS rankedScore,
						avg_accuracy_{gm} AS accuracy,
						playcount_{gm} AS playcount,
						total_score_{gm} AS totalScore,
						pp_{gm} AS pp
						FROM users_stats WHERE id = %s LIMIT 1""".format(gm=modeForDB), [userID])

	# Get game rank
	result = glob.db.fetch("SELECT position FROM leaderboard_{} WHERE user = %s LIMIT 1".format(modeForDB), [userID])
	if result is None:
		stats["gameRank"] = 0
	else:
		stats["gameRank"] = result["position"]

	# Return stats + game rank
	return stats

def isAllowed(userID):
	"""
	Check if userID is not banned or restricted

	userID -- id of the user
	return -- True if not banned or restricted, otherwise false.
	"""
	result = glob.db.fetch("SELECT privileges FROM users WHERE id = %s LIMIT 1", [userID])
	if result is not None:
		return (result["privileges"] & privileges.USER_NORMAL) and (result["privileges"] & privileges.USER_PUBLIC)
	else:
		return False

def isRestricted(userID):
	"""
	Check if userID is restricted

	userID -- id of the user
	return -- True if not restricted, otherwise false.
	"""
	result = glob.db.fetch("SELECT privileges FROM users WHERE id = %s LIMIT 1", [userID])
	if result is not None:
		return (result["privileges"] & privileges.USER_NORMAL) and not (result["privileges"] & privileges.USER_PUBLIC)
	else:
		return False

def isBanned(userID):
	"""
	Check if userID is banned

	userID -- id of the user
	return -- True if not banned, otherwise false.
	"""
	result = glob.db.fetch("SELECT privileges FROM users WHERE id = %s LIMIT 1", [userID])
	if result is not None:
		return not (result["privileges"] & 3 > 0)
	else:
		return True

def isLocked(userID):
	"""
	Check if userID is locked

	userID -- id of the user
	return -- True if not locked, otherwise false.
	"""
	result = glob.db.fetch("SELECT privileges FROM users WHERE id = %s LIMIT 1", [userID])
	if result != None:
		return ((result["privileges"] & privileges.USER_PUBLIC > 0) and (result["privileges"] & privileges.USER_NORMAL == 0))
	else:
		return True

def ban(userID):
	"""
	Ban userID

	userID -- id of user
	"""
	banDateTime = int(time.time())
	glob.db.execute("UPDATE users SET privileges = privileges & %s, ban_datetime = %s WHERE id = %s LIMIT 1", [ ~(privileges.USER_NORMAL | privileges.USER_PUBLIC | privileges.USER_PENDING_VERIFICATION) , banDateTime, userID])

def unban(userID):
	"""
	Unban userID

	userID -- id of user
	"""
	glob.db.execute("UPDATE users SET privileges = privileges | %s, ban_datetime = 0 WHERE id = %s LIMIT 1", [ (privileges.USER_NORMAL | privileges.USER_PUBLIC) , userID])

def restrict(userID):
	"""
	Put userID in restricted mode

	userID -- id of user
	"""
	banDateTime = int(time.time())
	glob.db.execute("UPDATE users SET privileges = privileges & %s, ban_datetime = %s WHERE id = %s LIMIT 1", [~privileges.USER_PUBLIC, banDateTime, userID])

def unrestrict(userID):
	"""
	Remove restricted mode from userID.
	Same as unban().

	userID -- id of user
	"""
	unban(userID)

def getPrivileges(userID):
	"""
	Return privileges for userID

	userID -- id of user
	return -- privileges number
	"""
	result = glob.db.fetch("SELECT privileges FROM users WHERE id = %s LIMIT 1", [userID])
	if result is not None:
		return result["privileges"]
	else:
		return 0

def setPrivileges(userID, priv):
	"""
	Set userID's privileges in db

	userID -- id of user
	priv -- privileges number
	"""
	glob.db.execute("UPDATE users SET privileges = %s WHERE id = %s LIMIT 1", [priv, userID])

def isInPrivilegeGroup(userID, groupName):
	groupPrivileges = glob.db.fetch("SELECT privileges FROM privileges_groups WHERE name = %s LIMIT 1", [groupName])
	if groupPrivileges is None:
		return False
	groupPrivileges = groupPrivileges["privileges"]
	userToken = glob.tokens.getTokenFromUserID(userID)
	if userToken is not None:
		userPrivileges = userToken.privileges
	else:
		userPrivileges = getPrivileges(userID)
	return (userPrivileges == groupPrivileges) or (userPrivileges == (groupPrivileges | privileges.USER_DONOR))


def appendNotes(userID, notes, addNl = True):
	"""
	Append "notes" to current userID's "notes for CM"

	userID -- id of user
	notes -- text to append
	addNl -- if True, prepend \n to notes. Optional. Default: True.
	"""
	if addNl:
		notes = "\n"+notes
	glob.db.execute("UPDATE users SET notes=CONCAT(COALESCE(notes, ''),%s) WHERE id = %s LIMIT 1", [notes, userID])


def logHardware(userID, hashes, activation = False):
	"""
	Hardware log
	USED FOR MULTIACCOUNT DETECTION

	Peppy's botnet (client data) structure (new line = "|", already split)
	[0] osu! version
	[1] plain mac addressed, separated by "."
	[2] mac addresses hash set
	[3] unique ID
	[4] disk ID

	return -- True if hw is not banned, otherwise false
	"""
	# Make sure the strings are not empty
	for i in hashes[2:5]:
		if i == "":
			log.warning("Invalid hash set ({}) for user {} in HWID check".format(hashes, userID), "bunk")
			return False

	# Run some HWID checks on that user if he is not restricted
	if not isRestricted(userID):
		# Get username
		username = getUsername(userID)

		# Get the list of banned or restricted users that have logged in from this or similar HWID hash set
		banned = glob.db.fetchAll("""SELECT users.id as userid, hw_user.occurencies, users.username FROM hw_user
						LEFT JOIN users ON users.id = hw_user.userid
						WHERE hw_user.userid != %(userid)s
						AND (IF(%(mac)s!='b4ec3c4334a0249dae95c284ec5983df', hw_user.mac = %(mac)s, 1) AND hw_user.unique_id = %(uid)s AND hw_user.disk_id = %(diskid)s)
						AND (users.privileges & 3 != 3)""", {
							"userid": userID,
							"mac": hashes[2],
							"uid": hashes[3],
							"diskid": hashes[4],
						})

		for i in banned:
			# Get the total numbers of logins
			total = glob.db.fetch("SELECT COUNT(*) AS count FROM hw_user WHERE userid = %s LIMIT 1", [userID])
			# and make sure it is valid
			if total is None:
				continue
			total = total["count"]

			# Calculate 10% of total
			perc = (total*10)/100

			if i["occurencies"] >= perc:
				# If the banned user has logged in more than 10% of the times from this user, restrict this user
				restrict(userID)
				appendNotes(userID, "-- Logged in from HWID ({hwid}) used more than 10% from user {banned} ({bannedUserID}), who is banned/restricted.".format(
					hwid=hashes[2:5],
					banned=i["username"],
					bannedUserID=i["userid"]
				))
				log.warning("**{user}** ({userID}) has been restricted because he has logged in from HWID _({hwid})_ used more than 10% from banned/restricted user **{banned}** ({bannedUserID}), **possible multiaccount**.".format(
					user=username,
					userID=userID,
					hwid=hashes[2:5],
					banned=i["username"],
					bannedUserID=i["userid"]
				), "cm")

	# Update hash set occurencies
	glob.db.execute("""
				INSERT INTO hw_user (id, userid, mac, unique_id, disk_id, occurencies) VALUES (NULL, %s, %s, %s, %s, 1)
				ON DUPLICATE KEY UPDATE occurencies = occurencies + 1
				""", [userID, hashes[2], hashes[3], hashes[4]])

	# Optionally, set this hash as 'used for activation'
	if activation:
		glob.db.execute("UPDATE hw_user SET activated = 1 WHERE userid = %s AND mac = %s AND unique_id = %s AND disk_id = %s", [userID, hashes[2], hashes[3], hashes[4]])

	# Access granted, abbiamo impiegato 3 giorni
	# We grant access even in case of login from banned HWID
	# because we call restrict() above so there's no need to deny the access.
	return True


def resetPendingFlag(userID, success=True):
	"""
	Remove pending flag from an user.

	userID -- ID of the user
	success -- if True, set USER_PUBLIC and USER_NORMAL flags too
	"""
	glob.db.execute("UPDATE users SET privileges = privileges & %s WHERE id = %s LIMIT 1", [~privileges.USER_PENDING_VERIFICATION, userID])
	if success:
		glob.db.execute("UPDATE users SET privileges = privileges | %s WHERE id = %s LIMIT 1", [(privileges.USER_PUBLIC | privileges.USER_NORMAL), userID])

def verifyUser(userID, hashes):
	# Check for valid hash set
	for i in hashes[2:5]:
		if i == "":
			log.warning("Invalid hash set ({}) for user {} while verifying the account".format(str(hashes), userID), "bunk")
			return False

	# Get username
	username = getUsername(userID)

	# Make sure there are no other accounts activated with this exact mac/unique id/hwid
	match = glob.db.fetchAll("SELECT userid FROM hw_user WHERE (IF(%(mac)s != 'b4ec3c4334a0249dae95c284ec5983df', mac = %(mac)s, 1) AND unique_id = %(uid)s AND disk_id = %(diskid)s) AND userid != %(userid)s AND activated = 1 LIMIT 1", {
		"mac": hashes[2],
		"uid": hashes[3],
		"diskid": hashes[4],
		"userid": userID
	})

	if match:
		# This is a multiaccount, restrict other account and ban this account

		# Get original userID and username (lowest ID)
		originalUserID = match[0]["userid"]
		originalUsername = getUsername(originalUserID)

		# Ban this user and append notes
		ban(userID)	# this removes the USER_PENDING_VERIFICATION flag too
		appendNotes(userID, "-- {}'s multiaccount ({}), found HWID match while verifying account ({})".format(originalUsername, originalUserID, hashes[2:5]))
		appendNotes(originalUserID, "-- Has created multiaccount {} ({})".format(username, userID))

		# Restrict the original
		restrict(originalUserID)

		# Discord message
		log.warning("User **{originalUsername}** ({originalUserID}) has been restricted because he has created multiaccount **{username}** ({userID}). The multiaccount has been banned.".format(
			originalUsername=originalUsername,
			originalUserID=originalUserID,
			username=username,
			userID=userID
		), "cm")

		# Disallow login
		return False
	else:
		# No matches found, set USER_PUBLIC and USER_NORMAL flags and reset USER_PENDING_VERIFICATION flag
		resetPendingFlag(userID)
		log.info("User **{}** ({}) has verified his account with hash set _{}_".format(username, userID, hashes[2:5]), "cm")

		# Allow login
		return True

def hasVerifiedHardware(userID):
	"""
	userID -- id of the user
	return -- True if hwid activation data is in db, otherwise false
	"""
	data = glob.db.fetch("SELECT id FROM hw_user WHERE userid = %s AND activated = 1 LIMIT 1", [userID])
	if data is not None:
		return True
	return False

def cacheUserIDs():
	"""Cache userIDs in glob.userIDCache, used later with getID()."""
	data = glob.db.fetchAll("SELECT id, username FROM users WHERE privileges & {} > 0".format(privileges.USER_NORMAL))
	for i in data:
		glob.userIDCache[i["username"]] = i["id"]