Hmm. avoid cycles.
[zanchey/dispense2.git] / sql-edition / servers / VendServer.py
index 2627cd3..861f7c9 100755 (executable)
@@ -1,10 +1,17 @@
 #!/usr/bin/python
 # vim:ts=4
 
 #!/usr/bin/python
 # vim:ts=4
 
-import sys, os, string, time, re, pwd
-import pg
+USE_DB = 0
+
+import sys, os, string, re, pwd
+if USE_DB: import pg
+from time import time, sleep
+from popen2 import popen2
 from LATClient import LATClient
 from VendingMachine import VendingMachine
 from LATClient import LATClient
 from VendingMachine import VendingMachine
+from ConfigParser import ConfigParser
+from HorizScroll import HorizScroll
+from random import random, seed
 
 GREETING = 'UCC SNACKS'
 PIN_LENGTH = 4
 
 GREETING = 'UCC SNACKS'
 PIN_LENGTH = 4
@@ -14,9 +21,9 @@ SWITCH = 2
 KEY = 3
 
 class DispenseDatabase:
 KEY = 3
 
 class DispenseDatabase:
-       def __init__(self, vending_machine):
+       def __init__(self, vending_machine, host, name, user, password):
                self.vending_machine = vending_machine
                self.vending_machine = vending_machine
-               self.db = pg.DB(dbname = 'dispense', host = 'dispense.ucc.gu.uwa.edu.au', user = 'vendserver', passwd = 'revresdnev')
+               self.db = pg.DB(dbname = name, host = host, user = user, passwd = password)
                self.db.query('LISTEN vend_requests')
 
        def process_requests(self):
                self.db.query('LISTEN vend_requests')
 
        def process_requests(self):
@@ -43,6 +50,32 @@ class DispenseDatabase:
                        self.process_requests()
                        notify = self.db.getnotify()
 
                        self.process_requests()
                        notify = self.db.getnotify()
 
+def scroll_options(username, mk, welcome = False):
+       if welcome:
+               msg = [(center('WELCOME'), False, 0.8),
+                          (center(username), False, 0.8)]
+       else:
+               msg = []
+       choices = ' '*10+'CHOICES: '
+       try:
+               coke_machine = file('/home/other/coke/coke_contents')
+               cokes = coke_machine.readlines()
+               coke_machine.close()
+       except:
+               cokes = []
+               pass
+       for c in cokes:
+               c = c.strip()
+               (slot_num, price, slot_name) = c.split(' ', 2)
+               if slot_name == 'dead': continue
+               choices += '%s8-%s (%sc) '%(slot_num, slot_name, price)
+       choices += '55-DOOR '
+       choices += 'OR A SNACK. '
+       choices += '99 TO READ AGAIN. '
+       choices += 'CHOICE?   '
+       msg.append((choices, False, None))
+       mk.set_messages(msg)
+
 def get_pin(uid):
        try:
                info = pwd.getpwuid(uid)
 def get_pin(uid):
        try:
                info = pwd.getpwuid(uid)
@@ -78,189 +111,320 @@ def verify_user_pin(uid, pin):
 
 def door_open_mode(vending_machine):
        print "Entering open door mode"
 
 def door_open_mode(vending_machine):
        print "Entering open door mode"
-       v.display("DOOR  OPEN")
+       v.display("-FEED  ME-")
        while True:
        while True:
-               v.wait_for_events(1)
-               while True:
-                       e = v.next_event()
-                       if e == None: break
-                       (event, params) = e
-                       if event == DOOR:
-                               if params == 1: # door closed
-                                       v.display("BYE BYE!")
-                                       time.sleep(1)
-                                       return
+               e = v.next_event()
+               if e == None: break
+               (event, params) = e
+               if event == DOOR:
+                       if params == 1: # door closed
+                               v.display("-YUM YUM!-")
+                               sleep(1)
+                               return
+
+class Idler:
+       def __init__(self, v):
+               self.idle_state = 0
+               self.v = v
+
+       def put_shark(self, s, l):
+               if self.s[l] == ' ':
+                       self.s[l] = s
+               elif self.s[l] == 'X':
+                       self.s[l] = '*'
+               else:
+                       self.s[l] = 'X'
+
+       def next(self):
+               # does the next stage of a dance
+               self.s = [' ']*10
+               shark1 = self.idle_state % 18
+               if shark1 < 9:
+                       self.put_shark('^', shark1)
+               else:
+                       self.put_shark('^', 18-shark1)
+
+               shark2 = ((self.idle_state+4) % 36)/2
+               if shark2 < 9:
+                       self.put_shark('<', shark2)
+               else:
+                       self.put_shark('<', 18-shark2)
+
+               shark3 = ((self.idle_state+7) % 54)/3
+               if shark3 < 9:
+                       self.put_shark('>', 9-shark3)
+               else:
+                       self.put_shark('>', 9-(18-shark3))
+
+               train1 = ((self.idle_state%(18*36)))
+               train1_start = 122
+               if train1 > train1_start and train1 < train1_start+(10*2):
+                       for i in range(5):
+                               ptr = i+train1-train1_start-5
+                               if ptr >= 0 and ptr < 10: self.s[ptr] = '#'
+
+               train2 = ((self.idle_state%(18*36)))
+               train2_start = 400
+               if train2 > train2_start and train2 < train2_start+(10*2):
+                       for i in range(5):
+                               ptr = i+train2-train2_start-5
+                               if ptr >= 0 and ptr < 10: self.s[9-ptr] = '#'
+
+               train3 = ((self.idle_state%(18*36)))
+               train3_start = 230
+               if train3 > train3_start and train3 < train3_start+(10*2):
+                       for i in range(10):
+                               ptr = i+train3-train3_start-10
+                               if ptr >= 0 and ptr < 10: self.s[ptr] = '-'
+
+               self.v.display(string.join(self.s, ''))
+               self.idle_state += 1
+               self.idle_state %= 18*36*54
+
+def cookie(v):
+       seed(time())
+       messages = ['  WASSUP! ', 'PINK FISH ', ' SECRETS ']
+       choice = int(random()*len(messages))
+       msg = messages[choice]
+       left = range(len(msg))
+       for i in range(len(msg)):
+               if msg[i] == ' ': left.remove(i)
+       reveal = 1
+       while left:
+               s = ''
+               for i in range(0, len(msg)):
+                       if i in left:
+                               if reveal == 0:
+                                       left.remove(i)
+                                       s += msg[i]
+                               else:
+                                       s += chr(int(random()*26)+ord('A'))
+                               reveal += 1
+                               reveal %= 53
+                       else:
+                               s += msg[i]
+               v.display(s)
+
+def center(str):
+       LEN = 10
+       return ' '*((LEN-len(str))/2)+str
+
+class MessageKeeper:
+       def __init__(self, vendie):
+               # Each element of scrolling_message should be a 3-tuple of
+               # ('message', True/False if it is to be repeated, time to display)
+               self.scrolling_message = []
+               self.v = vendie
+               self.next_update = None
+
+       def set_message(self, string):
+               self.scrolling_message = [(string, False, None)]
+               self.update_display(True)
+
+       def set_messages(self, strings):
+               self.scrolling_message = strings
+               self.update_display(True)
+
+       def update_display(self, forced = False):
+               if not forced and self.next_update != None and time() < self.next_update:
+                       return
+               if len(self.scrolling_message) > 0:
+                       if len(self.scrolling_message[0][0]) > 10:
+                               (m, r, t) = self.scrolling_message[0]
+                               a = []
+                               exp = HorizScroll(m).expand(padding = 0, wraparound = True)
+                               if t == None:
+                                       t = 0.1
+                               else:
+                                       t = t / len(exp)
+                               for x in exp:
+                                       a.append((x, r, t))
+                               del self.scrolling_message[0]
+                               self.scrolling_message = a + self.scrolling_message
+                       newmsg = self.scrolling_message[0]
+                       if newmsg[2] != None:
+                               self.next_update = time() + newmsg[2]
+                       else:
+                               self.next_update = None
+                       self.v.display(self.scrolling_message[0][0])
+                       if self.scrolling_message[0][1]:
+                               self.scrolling_message.append(self.scrolling_message[0])
+                       del self.scrolling_message[0]
+
+       def done(self):
+               return len(self.scrolling_message) == 0
 
 if __name__ == '__main__':
 
 if __name__ == '__main__':
+       cp = ConfigParser()
+       cp.read('/etc/dispense/servers.conf')
+       DBServer = cp.get('Database', 'Server')
+       DBName = cp.get('Database', 'Name')
+       DBUser = cp.get('VendingMachine', 'DBUser')
+       DBPassword = cp.get('VendingMachine', 'DBPassword')
+
+       ServiceName = cp.get('VendingMachine', 'ServiceName')
+       ServicePassword = cp.get('VendingMachine', 'Password')
        # Open vending machine via LAT
        # Open vending machine via LAT
-       latclient = LATClient(service = 'VEND', password = 'dmscptd')
-       (rfh, wfh) = latclient.get_fh()
+       if 0:
+               latclient = LATClient(service = ServiceName, password = ServicePassword)
+               (rfh, wfh) = latclient.get_fh()
+       else:
+               #(rfh, wfh) = popen2('../../virtualvend/vvend.py')
+               import socket
+               sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
+               sock.connect(('localhost', 5150))
+               rfh = sock.makefile('r')
+               wfh = sock.makefile('w')
        v = VendingMachine(rfh, wfh)
        print 'PING is', v.ping()
        v = VendingMachine(rfh, wfh)
        print 'PING is', v.ping()
-       #print 'BEEP is', v.beep()
-       #print 'VEND 11 is', v.vend('11')
-       #print 'SILENCE is', v.silence()
-       #print 'DISPLAY is', v.display('WELCOME')
-       print 'S is', v.get_switches()
-
-       db = DispenseDatabase(v)
-       db.process_requests()
+
+       if USE_DB: db = DispenseDatabase(v, DBServer, DBName, DBUser, DBPassword)
        cur_user = ''
        cur_pin = ''
        cur_selection = ''
 
        cur_user = ''
        cur_pin = ''
        cur_selection = ''
 
-       scrolling_message = [GREETING]
-       scrolling_wraps = False
-       need_repaint = True
-       timeout = None
-       last_tick = time.time()
+       mk = MessageKeeper(v)
+       mk.set_message(GREETING)
+       time_to_autologout = None
+       idler = Idler(v)
+       time_to_idle = None
+       last_timeout_refresh = None
 
        while True:
 
        while True:
-               if time.time() > last_tick+1:
-                       if timeout != None and timeout > 0: timeout -= 1
-                       if len(scrolling_message) > 0:
-                               need_repaint = True
-               if need_repaint and len(scrolling_message) > 0:
-                       v.display(scrolling_message[0])
-                       if scrolling_wraps:
-                               scrolling_message.append(scrolling_message[0])
-                       del scrolling_message[0]
-                       need_repaint = False
-               if timeout == 0:
-                       timeout = None
+               if USE_DB: db.handle_events()
+
+               if time_to_autologout != None:
+                       time_left = time_to_autologout - time()
+                       if time_left < 5 and (last_timeout_refresh is None or last_timeout_refresh > time_left):
+                               mk.set_message('LOGOUT: '+str(int(time_left)))
+                               last_timeout_refresh = int(time_left)
+                               cur_selection = ''
+
+               if time_to_autologout != None and time_to_autologout - time() <= 0:
+                       time_to_autologout = None
                        cur_user = ''
                        cur_pin = ''
                        cur_selection = ''
                        cur_user = ''
                        cur_pin = ''
                        cur_selection = ''
-                       scrolling_message = [GREETING]
-                       scrolling_wraps = False
-                       need_repaint = True
-                       continue
-
-               v.wait_for_events(1)
-               while True:
-                       v.wait_for_events(0)
-                       e = v.next_event()
-                       if e == None: break
-                       (event, params) = e
-                       print e
-                       if event == DOOR:
-                               if params == 0:
-                                       door_open_mode(v);
+                       mk.set_message(GREETING)
+
+               if time_to_autologout and not mk.done(): time_to_autologout = None
+               if cur_user == '' and time_to_autologout: time_to_autologout = None
+               if len(cur_pin) == PIN_LENGTH and mk.done() and time_to_autologout == None:
+                       # start autologout
+                       time_to_autologout = time() + 15
+
+               if time_to_idle == None and cur_user == '': time_to_idle = time() + 60
+               if time_to_idle != None and cur_user != '': time_to_idle = None
+               if time_to_idle is not None and time() > time_to_idle: idler.next()
+
+               mk.update_display()
+
+               e = v.next_event(0)
+               if e == None:
+                       e = v.next_event(0.1)
+                       if e == None:
+                               continue
+               (event, params) = e
+               print e
+               if event == DOOR:
+                       if params == 0:
+                               door_open_mode(v);
+                               cur_user = ''
+                               cur_pin = ''
+                               mk.set_message(GREETING)
+               elif event == SWITCH:
+                       # don't care right now.
+                       pass
+               elif event == KEY:
+                       key = params
+                       # complicated key handling here:
+                       if len(cur_user) < 5:
+                               if key == 11:
                                        cur_user = ''
                                        cur_user = ''
-                                       cur_pin = ''
-                                       scrolling_message = [GREETING]
-                                       scrolling_wraps = False
-                                       need_repaint = True
-                       elif event == SWITCH:
-                               # don't care right now.
-                               pass
-                       elif event == KEY:
-                               key = params
-                               # complicated key handling here:
-                               if len(cur_user) < 5:
-                                       if key == 11:
+                                       mk.set_message(GREETING)
+                                       continue
+                               cur_user += chr(key + ord('0'))
+                               mk.set_message('UID: '+cur_user)
+                               if len(cur_user) == 5:
+                                       uid = int(cur_user)
+                                       if not has_good_pin(uid):
+                                               mk.set_messages(
+                                                       [(center('INVALID'), False, 0.7),
+                                                        (center('PIN'), False, 0.7),
+                                                        (center('SETUP'), False, 1.0),
+                                                        (GREETING, False, None)])
                                                cur_user = ''
                                                cur_user = ''
-                                               scrolling_message = [GREETING]
-                                               scrolling_wraps = False
-                                               need_repaint = True
-                                               continue
-                                       cur_user += chr(key + ord('0'))
-                                       scrolling_message = []
-                                       v.display('UID: '+cur_user)
-                                       if len(cur_user) == 5:
-                                               uid = int(cur_user)
-                                               if not has_good_pin(uid):
-                                                       scrolling_message = [' INVALID  ', '   PIN', '  `SETUP', GREETING]
-                                                       scrolling_wraps = False
-                                                       need_repaint = True
-                                                       cur_user = ''
-                                                       cur_pin = ''
-                                                       continue
-                                               cur_pin = ''
-                                               v.display('PIN: ')
-                                               scrolling_message = []
-                                               continue
-                               elif len(cur_pin) < PIN_LENGTH:
-                                       if key == 11:
-                                               if cur_pin == '':
-                                                       cur_user = ''
-                                                       scrolling_message = [GREETING]
-                                                       scrolling_wraps = False
-                                                       need_repaint = True
-                                                       continue
                                                cur_pin = ''
                                                cur_pin = ''
-                                               v.display('PIN: ')
-                                               scrolling_message = []
                                                continue
                                                continue
-                                       cur_pin += chr(key + ord('0'))
-                                       v.display('PIN: '+'X'*len(cur_pin))
-                                       scrolling_message = []
-                                       if len(cur_pin) == PIN_LENGTH:
-                                               username = verify_user_pin(int(cur_user), int(cur_pin))
-                                               if username:
-                                                       v.beep(0, False)
-                                                       cur_selection = ''
-
-                                                       scrolling_message = [' WELCOME  ', username]
-                                                       scrolling_message.append('OR A SNACK')
-                                                       scrolling_wraps = True
-                                                       need_repaint = True
-                                                       continue
-                                               else:
-                                                       v.beep(40, False)
-                                                       scrolling_message = [' BAD PIN  ', '  SORRY   ', GREETING]
-                                                       scrolling_wraps = False
-                                                       need_repaint = True
-
-                                                       cur_user = ''
-                                                       cur_pin = ''
-                                                       continue
-                               elif len(cur_selection) == 0:
-                                       if key == 11:
-                                               cur_pin = ''
+                                       cur_pin = ''
+                                       mk.set_message('PIN: ')
+                                       continue
+                       elif len(cur_pin) < PIN_LENGTH:
+                               if key == 11:
+                                       if cur_pin == '':
                                                cur_user = ''
                                                cur_user = ''
+                                               mk.set_message(GREETING)
+                                               continue
+                                       cur_pin = ''
+                                       mk.set_message('PIN: ')
+                                       continue
+                               cur_pin += chr(key + ord('0'))
+                               mk.set_message('PIN: '+'X'*len(cur_pin))
+                               if len(cur_pin) == PIN_LENGTH:
+                                       username = verify_user_pin(int(cur_user), int(cur_pin))
+                                       if username:
+                                               v.beep(0, False)
                                                cur_selection = ''
                                                cur_selection = ''
-                                               v.display('BYE!')
-                                               time.sleep(0.5)
-                                               scrolling_message = [GREETING]
-                                               scrolling_wraps = False
-                                               need_repaint = True
+                                               scroll_options(username, mk, True)
                                                continue
                                                continue
+                                       else:
+                                               v.beep(40, False)
+                                               mk.set_messages(
+                                                       [(center('BAD PIN'), False, 1.0),
+                                                        (center('SORRY'), False, 0.5),
+                                                        (GREETING, False, None)])
+                                               cur_user = ''
+                                               cur_pin = ''
+                                               continue
+                       elif len(cur_selection) == 0:
+                               if key == 11:
+                                       cur_pin = ''
+                                       cur_user = ''
+                                       cur_selection = ''
+                                       v.display('BYE!')
+                                       sleep(0.5)
+                                       mk.set_message(GREETING)
+                                       continue
+                               cur_selection += chr(key + ord('0'))
+                               mk.set_message('SELECT: '+cur_selection)
+                               time_to_autologout = None
+                       elif len(cur_selection) == 1:
+                               if key == 11:
+                                       cur_selection = ''
+                                       time_to_autologout = None
+                                       scroll_options(username, mk)
+                                       continue
+                               else:
                                        cur_selection += chr(key + ord('0'))
                                        cur_selection += chr(key + ord('0'))
-                                       scrolling_message = []
-                                       v.display('SELECT: '+cur_selection)
-                               elif len(cur_selection) == 1:
-                                       if key == 11:
+                                       #make_selection(cur_selection)
+                                       # XXX this should move somewhere else:
+                                       if cur_selection == '55':
+                                               v.display('GOT DOOR?')
+                                               os.system('su - "%s" -c "dispense door"'%username)
+                                       elif cur_selection == '91':
+                                               cookie(v)
+                                       elif cur_selection == '99':
+                                               scroll_options(username, mk)
                                                cur_selection = ''
                                                cur_selection = ''
-                                               scrolling_message = []
-                                               v.display('SELECT: ')
                                                continue
                                                continue
+                                       elif cur_selection[1] == '8':
+                                               v.display('GOT COKE?')
+                                               os.system('su - "%s" -c "dispense %s"'%(username, cur_selection[0]))
                                        else:
                                        else:
-                                               cur_selection += chr(key + ord('0'))
-                                               #make_selection(cur_selection)
-                                               # XXX this should move somewhere else:
-                                               if cur_selection == '55':
-                                                       v.display('GOT DOOR?')
-                                                       os.system('su - "%s" -c "dispense door"'%username)
-                                               elif cur_selection[1] == '8':
-                                                       v.display('GOT COKE?')
-                                                       os.system('su - "%s" -c "dispense %s"'%(username, cur_selection[0]))
-                                               else:
-                                                       v.display('HERES A '+cur_selection)
-                                                       v.vend(cur_selection)
-                                               time.sleep(0.5)
-                                               v.display('THANK YOU')
-                                               time.sleep(0.5)
-                                               cur_selection = ''
-                                               scrolling_message = [
-                                                       'LOGOUT: 5',
-                                                       'LOGOUT: 4',
-                                                       'LOGOUT: 3',
-                                                       'LOGOUT: 2',
-                                                       'LOGOUT: 1',
-                                                       'BYE BYE!']
-                                               timeout = 7
-                                               scrolling_wraps = True
-                                               need_repaint = True
-
-               db.handle_events()
+                                               v.display('HERES A '+cur_selection)
+                                               v.vend(cur_selection)
+                                       sleep(0.5)
+                                       v.display('THANK YOU')
+                                       sleep(0.5)
+                                       cur_selection = ''
+                                       time_to_autologout = time() + 10

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