def list_dishes_by_vendor(vendor_data):
print_header()
vid, vname, _ = vendor_data
resp = call_api('list-dishes-by-vendor', params={'vid': vid})
dishes = json.loads(resp.text)
if not dishes:
print('\nNo dishes found.')
input('Press <Enter> to return to main menu: ')
return
else:
print('\nDishes offered by "%s":\n' % vname)
header = '%5s %-25s%8s' % ('#', 'Item', 'Price')
print('-' * len(header))
print(header)
print('-' * len(header))
for i, (_, item, _, price) in enumerate(dishes, 1):
print('%5d. %-25s%8.2f' % (i, item, price))
print('-' * len(header))
while True:
print('\nSelect a dish to add it to the cart.')
print('Or just press <Enter> to return to previous menu.')
n = read_choice(len(dishes), 'Dish to select: ')
if not n:
return
print('\nEnter the repeat-count (max %d) for "%s".' %
(max_qty, dishes[n - 1][1]))
print('Or just press <Enter> to order one portion of it.')
qty = read_choice(max_qty, 'Number of portions to order: ', default=1)
cart.append(dishes[n - 1] + [qty])
def view_all_orders():
resp = call_api('list-order-by-vid', params={'vid': admindata['vid']})
if resp.status_code == HTTP_OK:
all_orders = json.loads(resp.text)
if len(all_orders) == 0:
print('\nNo orders have been placed against your restaurant.')
else:
orders = []
prev_oid = None
i = 0
for oid, ts, name, dish, qty in all_orders:
if oid != prev_oid and orders:
# All entries in `orders` should have the same timestamp
# and customer: they belong to the same order.
dt = datetime.fromtimestamp(orders[0][0])
customer = orders[0][1]
i += 1
print('\n%5d. Order placed on %s at %s by %s' %
(i, dt.strftime('%F'), dt.strftime('%T'), customer))
list_orders(orders)
orders = []
orders.append((ts, name, dish, qty))
prev_oid = oid
else:
print('Failed to fetch orders')
input('\nPress <Enter> to return to main menu: ')
def signup():
'''Perform the signup process for a new user.'''
print_header()
print('\nSign up for a new account.')
# Get the username.
while True:
print('\nEnter the username for your account.')
print('Or just press <Enter> to return to the main menu.')
uname = input('username: '******'Sorry, that username is already taken. Try again.')
# Get the password.
while True:
print('\nEnter the password.')
print('Or just press <Enter> to return to the main menu.')
pword = getpass('password: '******'confirm password: '******'Password do not match; please try again.')
# Get user's full name.
print('\nEnter your full name.')
print('Or just press <Enter> to return to the main menu.')
fname = input('fullname: ')
if not fname:
return
# Get user's phone number.
print('\nEnter your phone number.')
print('Or just press <Enter> to return to the main menu.')
phone = input('phone number: ')
if not phone:
return
# Perform the user sign-up on the server.
resp = call_api('add-user',
params={
'username': uname,
'password': pword,
'fullname': fname,
'phone': phone
})
if resp.status_code == HTTP_OK:
print('Signup successful!')
else:
print('Signup failed.')
input('\nPress <Enter> to return to main menu: ')
def place_order():
ts = int(time.time()) # NOTE: We ignore fractions of a second for now.
resp = call_api('add-order',
params={
'uid': userdata['uid'],
'timestamp': ts
})
if resp.status_code == HTTP_OK:
oid = resp
for did, _, _, _, qty in cart:
call_api('add-order-dish',
params={
'oid': oid,
'did': did,
'quantity': qty
})
print('Order placed successfully!')
else:
print('Failed to place order.')
input('Press <Enter> to return to main menu: ')
def login():
'''Perform the login process for an admin. Return the "aid" returned by the
server on success, else return None.'''
print_header()
print('\nEnter your credentials to login.')
uname = input('username: '******'*** Error: Username cannot be blank/empty.')
else:
pword = getpass('password: '******'login-admin',
params={
'username': uname,
'password': pword
})
if resp.status_code == HTTP_OK:
admindata['aid'], admindata['vid'] = json.loads(resp.text)
admindata['uname'] = uname
print('Welcome, %s!' % admindata['uname'])
else:
print('Login failed.')
input('\nPress <Enter> to return to main menu: ')
def login():
'''Perform the login process for a user. Return the "uid" returned by the
server on success, else return None.'''
print_header()
print('\nEnter your credentials to login.')
uname = input('username: '******'*** Error: Username cannot be blank/empty.')
else:
pword = getpass('password: '******'login-user',
params={
'username': uname,
'password': pword
})
if resp.status_code == HTTP_OK:
userdata['uid'] = resp
data = get_user_data(userdata['uid'])
userdata['uname'], userdata['fname'], userdata['phone'] = data
print('Welcome, %s!' % userdata['fname'])
else:
print('Login failed.')
input('\nPress <Enter> to return to main menu: ')
def view_orders():
print_header()
resp = call_api('list-order-by-uid', params={'uid': userdata['uid']})
if resp.status_code != HTTP_OK:
print('\nFailed to fetch your orders.')
else:
ordlist = json.loads(resp.text)
if len(ordlist) == 0:
print('\nCould not find any orders placed by you.')
else:
print('\nOrders placed by you:')
orders = defaultdict(list)
# Segregate the orders by (order-id, timestamp) pairs.
# NOTE: We include None's in the tuples below, as placeholders for
# dish-IDs, so that we can reuse list_dishes().
for oid, ts, item, vendor, price, qty in ordlist:
orders[(oid, ts)].append((None, item, vendor, price, qty))
for i, ((oid, ts), dishes) in enumerate(orders.items(), 1):
dt = datetime.fromtimestamp(ts)
print('\n%5d. Order placed on %s at %s' %
(i, dt.strftime('%F'), dt.strftime('%T')))
list_dishes(dishes)
input('\nPress <Enter> to return to main menu: ')
def list_dishes_by_name(name):
'''Return a list of dishes whose names have "name" in them.'''
resp = call_api('list-dishes-by-name', params={'name': name})
return json.loads(resp.text)
def get_user_data(uid):
'''Get data for a user with a given "uid".'''
resp = call_api('user-data', params={'uid': uid})
return json.loads(resp.text)
def user_exists(uname):
'''Return True if a user with username `uname' exists in our system;
False otherwise.'''
resp = call_api('user-exists', params={'username': uname})
return json.loads(resp.text)