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from classes import userexist, PersonalError, r, host, clear, Colors
from listcommands import ListCommands
from config import config as co
class Commands(object):
def command(self, what, cmd):
"""
this function is used for execute a command
"""
if what == 'clear':
clear()
elif what == 'set':
try:
if cmd[1] == 'user' and cmd[2] is not None: #set name for user
if len(cmd[2]) > 10:
raise PersonalError('lunghezza maggiore del consetito. Max 10')
if userexist(cmd[2]) == True: #check if the user exists
raise PersonalError('questo nome utente esiste già')
if len(cmd) > ListCommands.info['set'][1]:
raise PersonalError(Colors.grey + 'set user' + Colors.red + ' accetta 1 parametro')
if self.user != '': r.zrem('usersname', self.user) #if user already exists, del the name from set
self.user = cmd[2]
r.hset('user:'+host, 'name', self.user) #change name of user:0.0.0.0
r.zadd('usersname', self.user, 0) #insert new name into the set
print('Ok')
elif cmd[1] is not ListCommands.commands['set']:
raise KeyError
except IndexError:
ListCommands.err('wrong')
except KeyError:
ListCommands.err('keyword')
except PersonalError as e:
ListCommands.err('personal', e.value)
elif what == 'get':
try:
if len(cmd) > ListCommands.info['get'][1]:
raise PersonalError(Colors.grey + 'get ' + Colors.red + 'accetta 2 parametri')
if cmd[1] == 'i': #if first word after get is 'i', there is an info
if cmd[2] == 'user':
#if self.user is empty, print 'nil'
if self.user != '':
print(r.hget('user:'+host, 'name').decode('utf-8'))
else:
print('nil')
elif cmd[2] not in ListCommands.commands['get'][1]: #check if the word after 'i' exists
ListCommands.err('keyword')
else:
print(co[cmd[2]])
elif cmd[1] == 'user?':
#if there are more than 2 word after 'get', the func doens't work
if len(cmd) > 3:
raise PersonalError(Colors.grey + 'get user?' + Colors.red + ' accetta 1 parametro')
#return 1 if the user exists
print((lambda x: '0' if x == False else '1')(userexist(cmd[2])))
else:
raise KeyError
except IndexError:
ListCommands.err('wrong')
except KeyError:
ListCommands.err('keyword')
except PersonalError as e:
ListCommands.err('personal', e.value)
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