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from classes import PersonalError, r, clear, RED, GREY
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 == '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 len(cmd) > ListCommands.info['set'][1]:
raise PersonalError(GREY + 'set user' + RED + ' accetta 1 parametro')
self.user = cmd[2]
r.set('user', self.user) #change name of user
print('Ok')
elif cmd[1] is not ListCommands.commands['set']:
raise KeyError
except (IndexError, KeyError) as e:
ListCommands.err(type(e).__name__)
except PersonalError as e:
ListCommands.err('personal', e.value)
elif what == 'get':
try:
if len(cmd) > ListCommands.info['get'][1]:
raise PersonalError(GREY + 'get ' + 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.get('user').decode('utf-8'))
else:
print('nil')
elif cmd[2] not in ListCommands.commands['get'][1]: #check if the word after 'i' exists
raise KeyError
else:
print(co[cmd[2]])
elif cmd[1] == 'todo':
todolist = r.zrange('todo', 0, -1)
if len(todolist) == 0: #if todo is empty
print('nessun todo in lista: goditi una Stout')
else:
for num, i in enumerate(todolist): #num = index, i = value
print('| {} |\t {}'.format(num, i.decode('utf-8')))
elif cmd[1] == 'ctodo':
count = r.get('idTODO')
if count is None: #if idTODO is None or 0
print('0')
else:
print(count.decode('utf-8'))
else:
raise KeyError
except (IndexError, KeyError) as e:
ListCommands.err(type(e).__name__)
except PersonalError as e:
ListCommands.err('personal', e.value)
elif what == 'add':
try:
if r.get('idTODO') is None: #create idTODO if it's null
r.set('idTODO', '0')
idTODO = r.get('idTODO').decode('utf-8')
msg = ' '.join(cmd[1:]) #join first word after 'add' to last word
try:
r.zadd('todo', msg, idTODO)
r.incr('idTODO')
print('Ok')
except:
raise KeyError
except (IndexError, KeyError):
ListCommands.err(type(e).__name__)
elif what == 'del':
try:
if len(cmd) > ListCommands.info['del'][1]:
raise PersonalError(GREY + 'del ' + RED + 'accetta 1 parametro')
if r.get('idTODO') is None or r.get('idTODO') == 0: #idTODO is null or 0
print('nessun todo in lista: goditi una Stout')
elif cmd[1] >= r.get('idTODO').decode('utf-8'):
print('nessun todo con questo id')
else:
try:
msg = msgFromId(cmd[1]) #return value of sorted set's rank
r.zrem('todo', msg)
r.decr('idTODO')
print('Ok')
except Exception as e:
print(e)
except (IndexError, KeyError) as e:
ListCommands.err(type(e).__name__)
def msgFromId(value):
for i, val in enumerate(r.zrange('todo', 0, -1)):
if i == int(value):
return val.decode('utf-8')
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