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import redis
import sys
r = redis.Redis()
if r.get('iduser') is None:
r.set('iduser', '0')
def iduser():
try:
with open('myid.txt', 'r') as f:
iduser = f.read()
except FileNotFoundError:
iduser = ''
return iduser
def user():
if r.hget('user:'+iduser(), 'name') is not None:
return r.hget('user:'+iduser(), 'name').decode("utf-8")
else:
return ''
class Colors(object):
red = '\033[91m'
yellow = '\033[93m'
grey = '\033[90m'
black = '\033[0m'
bold = '\033[1m'
class Command(object):
info = {
"info" : "this is stout",
}
c_info = {
"set" : "set a value",
}
c_commands = ('quit','set', 'get')
whatdo = {
'set' : ['user', 'host'],
}
@staticmethod
def err(err):
if err == 'keyword':
sys.stderr.write(Colors.red + "keyword inesistente\n" + Colors.black)
elif err == 'wrong':
sys.stderr.write(Colors.red + "sintassi comando errata\n" + Colors.black)
else:
pass
class Stout(object):
def __init__(self):
self.name = 'stout'
self.user = user()
def getName(self):
word = " (" + self.name + ") "
if self.user == '':
return word
else:
return word + Colors.grey + "(" + self.user + ") "
def command(self, what, cmd):
if what == 'set':
try:
if cmd[1] == 'user' and cmd[2] is not None:
if self.user == '':
new_id = str(int(r.get('iduser').decode("utf-8"))+1)
r.incr('iduser')
else:
new_id = iduser()
self.user = cmd[2]
r.hset('user:'+new_id,'name', self.user)
with open('myid.txt', 'w') as f:
f.write(new_id)
print("Ok")
elif cmd[1] is not Command.whatdo['set']:
raise IndexError
except IndexError:
Command.err('wrong')
def action(self, cmd):
if cmd is None:
return None
else:
cmd = cmd.split()
count = len(cmd)
if count == 1 and cmd[0] not in Command.c_commands:
try:
print(Command.info[cmd[0]])
except KeyError:
Command.err('keyword')
elif count == 2 and cmd[0] == 'info' and cmd[0] not in Command.c_commands:
try:
print(Command.c_info[cmd[1]])
except KeyError:
Command.err('keyword')
else:
what = cmd[0]
if what in Command.c_commands:
self.command(what, cmd)
else:
Command.err('keyword')
if __name__ == '__main__':
app = Stout()
cmd = ''
while cmd != 'quit':
cmd = input(">" + Colors.yellow + app.getName() + Colors.black)
app.action(cmd)
r.save()
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