feat(market): track user points change

polylan_submitter/market/models.py

@@ -12,10 +12,6 @@ class BaseModel(models.Model):
 
 
 class Market(BaseModel):
-    class Type(models.TextChoices):
-        YES_NO = "yes_no", "Yes/No"
-        MULTIPLE = "multiple", "Multiple Choice"
-
     class Status(models.TextChoices):
         OPEN = "open", "Open"
         CLOSED = "closed", "Closed"
@@ -23,7 +19,6 @@ class Market(BaseModel):
 
     title = models.CharField(max_length=255)
     description = models.TextField(blank=True)
-    type = models.CharField(max_length=10, choices=Type.choices, default=Type.YES_NO)
     status = models.CharField(
         max_length=10, choices=Status.choices, default=Status.OPEN
     )
@@ -51,18 +46,17 @@ class Market(BaseModel):
 class MarketOption(BaseModel):
     market = models.ForeignKey(Market, on_delete=models.CASCADE, related_name="options")
     text = models.CharField(max_length=255)
-    position = models.PositiveIntegerField(default=0)
 
     class Meta:
-        ordering = ["position"]
+        ordering = ["text"]
         constraints = [
             models.UniqueConstraint(
-                fields=["market", "position"],
-                name="unique_market_option_position",
+                fields=["market", "text"],
+                name="unique_market_option_text",
             ),
         ]
         indexes = [
-            models.Index(fields=["market", "position"]),
+            models.Index(fields=["market"]),
         ]
 
     def __str__(self):
@@ -91,3 +85,28 @@ class UserBet(BaseModel):
 
     def __str__(self):
         return f"{self.user.username} bet {self.amount} on {self.option.text}"
+
+
+class UserPointChange(BaseModel):
+    class Reason(models.TextChoices):
+        BET_PLACED = "bet_placed", "Bet Placed"
+        BET_WON = "bet_won", "Bet Won"
+        BET_LOST = "bet_lost", "Bet Lost"
+
+    user = models.ForeignKey(
+        "accounts.CustomUser", on_delete=models.CASCADE, related_name="point_changes"
+    )
+    market = models.ForeignKey(
+        Market, on_delete=models.CASCADE, related_name="point_changes"
+    )
+    amount = models.IntegerField()
+    reason = models.CharField(max_length=20, choices=Reason.choices)
+
+    class Meta:
+        ordering = ["-created_at"]
+        indexes = [
+            models.Index(fields=["user", "-created_at"]),
+        ]
+
+    def __str__(self):
+        return f"{self.user.username} {self.reason}: {self.amount} pts on {self.market.title}"