Added credit tracking and handling for blackjack.

@@ -111,17 +111,17 @@ class Blackjack:
 
         # TODO: Check for blackjack Ace + 10 pt
         if self.player_points > 21:
-            return (-self.bet, 'You Bust: {}')
+            return (0, 'You Bust. Total Winnings: {}')
         elif self.dealer_points > 21:
-            return (int(self.bet * 2), 'Dealer Busts: {}')
+            return (int(self.bet * 2), 'Dealer Busts. Total Winnings {}')
         elif self.dealer_hand.is_blackjack():
-            return (-self.bet, 'You lose: {}')
+            return (0, 'You lose. Total Winnings: {}')
         elif self.player_points > self.dealer_points:
-            return (int(self.bet * 2), 'You win: {}')
+            return (int(self.bet * 2), 'You win! Total Winnings {}')
         elif self.player_points == self.dealer_points:
             return (self.bet, 'push your bet is returned: {}')
         else:
-            return (-self.bet, 'You lose: {}')
+            return (0, 'You lose: {}')
 
     def print_hand(self, show_dealer=False):
         out_string = ""

@@ -114,20 +114,37 @@ def dict_factory(cursor, row):
         d[col[0]] = row[idx]
     return d
 
+def db_get_credit(member_id):
+    c = conn.cursor()
+    credits = c.execute("SELECT credits FROM members WHERE member_id = ?;", (member_id,)).fetchone()
+    if credits:
+        return credits[0]
+
+def db_update_credit(member_id, amount):
+    c = conn.cursor()
+    credits = c.execute("SELECT credits FROM members WHERE member_id = ?;", (member_id,)).fetchone()
+    if not credits:
+        return False, "Unable to find your account"
+
+    if int(credits[0]) + int(amount) < 0:
+        return False, "You do not have enough credits to cover amount requested. Credit: {} Amount Requested: {}".format(credits[0], amount)
+    c = conn.cursor()
+    c.execute("""UPDATE members SET credits = credits + ? 
+             WHERE member_id = ?;""", (amount, member_id))
+    conn.commit()
+    return True, ""
+
 def db_add_minigame(member_id, minigame_name, state):
     c = conn.cursor()
-    db_state = c.execute("SELECT state FROM minigames WHERE member_id = ? AND minigame_name = ?;", (member_id,minigame_name)).fetchone()
+    db_state = c.execute("SELECT state FROM minigames WHERE member_id = ? AND minigame_name = ?;", (member_id, minigame_name)).fetchone()
     if not db_state:
-        c = conn.cursor()
         c.execute("""INSERT INTO minigames(member_id, minigame_name, state) 
                  VALUES(?, ?, ?);""", (member_id, minigame_name, state))
         conn.commit()
     else:
-        c = conn.cursor()
         c.execute("""UPDATE minigames SET state = ? 
                  WHERE member_id = ? AND minigame_name = ?;""", (state, member_id, minigame_name))
         conn.commit()
-    pass
 
 def db_get_minigame_state(member_id, minigame_name):
     c = conn.cursor()
@@ -432,6 +449,7 @@ Games:
     !gameslist <count> - Returns a list of the top 20 games and the number of people who have played that game. if you pass a limit it will show that many games instead.
     !whoplayed <gamename> - Returns a list of players who have played the game.
 Minigames:
+    !credits - Lists your current credits.
     !bet <amount> - Start a game of BlackJack.
     !hit - Draw a card
     !stand - Show the cards
@@ -588,6 +606,15 @@ Stuff:
                 out_string = out_string[1900:]
         return
 
+    if message.content.startswith('!credits'):
+        member = db_get_member(message.author.id)
+        if not member:
+            client.send_message(message.author, "There was a problem looking up your information.")
+        else:
+            credits = db_get_credit(member['member_id'])
+            client.send_message(message.author, "Credits: {}".format(credits))
+        return
+
     if message.content.startswith('!hit') or message.content.startswith('!draw'):
         member = db_get_member(message.author.id)
         if not member:
@@ -610,6 +637,14 @@ Stuff:
                     out_string += "\n\n" + bj.print_hand(show_dealer=True)
                     out_string += "\n\n" + response.format(win,)
                     db_delete_minigame_state(member['member_id'], 'blackjack')
+                    result, error_message = db_update_credit(member['member_id'], int(win))
+                    if not result:
+                        client.send_message(message.author, error_message)
+                        return
+
+                    credits = db_get_credit(member['member_id'])
+                    out_string += "\nCredits: {}".format(credits)
+
                 client.send_message(message.author, out_string)
 
             else:
@@ -632,7 +667,12 @@ Stuff:
                 out_string += "\n\n" + bj.print_hand(show_dealer=True)
                 out_string += "\n\n" + response.format(win,)
                 db_delete_minigame_state(member['member_id'], 'blackjack')
-
+                result, error_message = db_update_credit(member['member_id'], int(win))
+                if not result:
+                    client.send_message(message.author, error_message)
+                    return
+                credits = db_get_credit(member['member_id'])
+                out_string += "\nCredits: {}".format(credits)
                 client.send_message(message.author, out_string)
         return
 
@@ -659,18 +699,31 @@ Stuff:
                     out_string += "\n\n" + bj.print_hand(show_dealer=True)
                     out_string += "\n\n" + response.format(win,)
                     db_delete_minigame_state(member['member_id'], 'blackjack')
+                    result, error_message = db_update_credit(member['member_id'], int(win))
+                    if not result:
+                        client.send_message(message.author, error_message)
+                        return
+                    credits = db_get_credit(member['member_id'])
+                    out_string += "\nCredits: {}".format(credits)
+
                 client.send_message(message.author, out_string)
 
                 return
 
             out_string = ""
             bet_amount = message.content[5:]
+            log("Member: {} Bet: {}".format(member['member_name'], bet_amount))
+
             if not bet_amount.isdigit():
                 client.send_message(message.author, "Please provide a bet amount. !bet 10")
                 return
+
+            result, error_message = db_update_credit(member['member_id'], -int(bet_amount))
+            if not result:
+                client.send_message(message.author, error_message)
+                return
             out_string += "Welcome to BlackJack! :flower_playing_cards: You have placed a bet of: {}\n".format(bet_amount)
             bj = Blackjack(bet_amount)
-
             out_string += bj.print_hand()
             actions = bj.get_actions()
             if len(actions) > 0:
@@ -681,6 +734,12 @@ Stuff:
                 out_string += "\n\n" + bj.print_hand(show_dealer=True)
                 out_string += "\n\n" + response.format(win,)
                 db_delete_minigame_state(member['member_id'], 'blackjack')
+                result, error_message = db_update_credit(member['member_id'], int(win))
+                if not result:
+                    client.send_message(message.author, error_message)
+                    return
+                credits = db_get_credit(member['member_id'])
+                out_string += "\nCredits: {}".format(credits)
 
             client.send_message(message.author, out_string)