PR review

STATUSES.md

@@ -0,0 +1,157 @@
+# Game & Purchase Status Definitions
+
+## Game Statuses
+
+Games have a `status` field with the following values:
+
+| Status | Code | Description |
+|--------|------|-------------|
+| **Unplayed** | `u` | Game was purchased but never played |
+| **Played** | `p` | Game was played but not yet finished |
+| **Finished** | `f` | Game has been completed |
+| **Retired** | `r` | Game was intentionally retired (e.g., no longer accessible, collector's item) |
+| **Abandoned** | `a` | Game was played but the user gave up on it |
+
+**Setting game status:**
+- Users explicitly set game status via the UI (finish/drop purchase buttons, status change form)
+- Status changes are tracked in `GameStatusChange` model
+- Refunding a purchase always marks its games as abandoned
+
+---
+
+## Purchase-Level Status Concepts
+
+These concepts determine whether a purchase appears in the "unfinished" or "dropped" lists in stats views.
+
+### Finished
+
+A purchase is considered **finished** when:
+
+```
+Game.status == "f" OR Purchase.games.* has a PlayEvent with an ended date
+```
+
+Either signal indicates the game is complete:
+- **Explicit**: User marked the game as finished (`Game.status = "f"`)
+- **Implicit**: A PlayEvent exists with `ended` date set (data-driven)
+
+This uses **OR** logic during a transition period. Later, these signals should be kept in sync so only one source of truth is needed.
+
+### Dropped
+
+A purchase is considered **dropped** when:
+
+```
+Game.status == "a" OR Purchase.date_refunded IS NOT NULL
+```
+
+Either signal indicates the user no longer has an active interest in the game:
+- **Explicit**: User marked the game as abandoned (`Game.status = "a"`)
+- **Implicit**: User refunded the purchase (which automatically sets games to abandoned)
+
+Note: Refunding a purchase always marks its games as abandoned. There is no option to refund without abandoning.
+
+---
+
+## Unfinished vs. Dropped
+
+The stats views categorize purchases into **unfinished** and **dropped** lists.
+
+### Unfinished
+
+A purchase is **unfinished** when:
+1. It was purchased in the relevant time period (this year for yearly stats, all time for all-time stats)
+2. It was NOT refunded (only counts toward unfinished/backlog)
+3. It is NOT finished (per the finished definition above)
+4. It is NOT dropped (per the dropped definition above)
+5. It is NOT infinite (subscription, etc.)
+6. It IS a game or DLC (not season passes or battle passes)
+
+**Unfinished = Active backlog** — games the user may still play.
+
+### Dropped
+
+A purchase is **dropped** when:
+1. It was purchased in the relevant time period
+2. It is NOT finished (per the finished definition above)
+3. It matches at least one dropped signal (per the dropped definition above)
+4. It is NOT infinite
+5. It IS a game or DLC
+
+**Dropped = Terminal state** — games the user has given up on or refunded.
+
+### Summary Table
+
+| Category | Includes Refunded? | Key Condition |
+|----------|-------------------|---------------|
+| **Unfinished** | No | NOT finished, NOT dropped |
+| **Dropped** | Yes | Finished OR Abandoned/Retired |
+| **Refunded** | Yes | `date_refunded IS NOT NULL` |
+| **Infinite** | Yes | `infinite = True` |
+
+---
+
+## Query Patterns
+
+### Checking if a game is finished
+
+```python
+game.finished()  # Returns True if status="f" or has PlayEvent with ended date
+```
+
+### Checking if a game is abandoned
+
+```python
+game.abandoned()  # Returns True if status="a"
+```
+
+### Getting finished purchases
+
+```python
+Purchase.objects.finished()  # All purchases where games are finished
+```
+
+### Getting dropped purchases
+
+```python
+Purchase.objects.dropped()  # All purchases that are abandoned or refunded
+```
+
+---
+
+## Transition State
+
+The system uses **OR logic** for both finished and dropped to catch any mismatch between explicit user actions and data signals:
+
+- **Finished**: `status="f" OR PlayEvent.ended`
+- **Dropped**: `status="a" OR date_refunded`
+
+This bridges the gap between the old model (where `date_finished` and `date_dropped` were on the Purchase model) and the new model (where `Game.status` and `PlayEvent` are the sources of truth).
+
+**Future:** These signals should be kept in sync. For example:
+- Setting `Game.status = "f"` should create a PlayEvent with `ended` date
+- When the sync is reliable, the OR can be simplified to a single check
+
+Note: Refunding a purchase always automatically sets its games' status to Abandoned. This is not optional — there is no way to refund without abandoning.
+
+---
+
+## Edge Cases
+
+### Unplayed games
+- Unplayed games (`status="u"`) are considered **unfinished**, not dropped
+- They appear in the unfinished/backlog list since they are still games the user may play
+- Unplayed games that are refunded DO count as **dropped** (refund signal overrides)
+
+### Multiple games per purchase
+- A purchase can have multiple games via `Purchase.games` (many-to-many)
+- A purchase is finished if ANY of its games is finished
+- A purchase is dropped if ANY of its games is abandoned OR the purchase itself is refunded
+
+### PlayEvents without ended date
+- A PlayEvent with `started` but no `ended` does NOT count as finished
+- This represents a game that was started but not completed
+
+### Retired games
+- Retired games (`status="r"`) are considered **dropped**
+- Retirement is for games the user intentionally removed from their collection (collector's items, no longer accessible, etc.)

games/tasks.py

@@ -14,14 +14,14 @@ currency_to = currency_to.upper()
 
 
 def _get_exchange_rate(currency_from, currency_to, year):
-    logger.info(
+    logger.debug(
         f"[convert_prices]: Looking for exchange rate in database: {currency_from}->{currency_to}"
     )
-    exchange_rate = ExchangeRate.objects.filter(
+    rate = ExchangeRate.objects.filter(
         currency_from=currency_from, currency_to=currency_to, year=year
     ).first()
-    if not exchange_rate:
+    if not rate:
-        logger.info(
+        logger.debug(
             f"[convert_prices]: Getting exchange rate from {currency_from} to {currency_to} for {year}..."
         )
         try:
@@ -40,16 +40,16 @@ def _get_exchange_rate(currency_from, currency_to, year):
                     year=year,
                     rate=floatformat(rate, 2),
                 )
-                exchange_rate = exchange_rate.rate
+                rate = exchange_rate.rate
             else:
                 logger.info("[convert_prices]: Could not get an exchange rate.")
         except requests.RequestException as e:
             logger.info(
                 f"[convert_prices]: Failed to fetch exchange rate for {currency_from}->{currency_to} in {year}: {e}"
             )
-    elif exchange_rate:
+    elif rate:
-        exchange_rate = exchange_rate.rate
+        rate = rate.rate
-    return exchange_rate
+    return rate
 
 
 def _save_converted_price(purchase, converted_price, needs_update):
@@ -78,11 +78,11 @@ def convert_prices():
             continue
         year = purchase.date_purchased.year
         currency_from = purchase.price_currency.upper()
-        exchange_rate = _get_exchange_rate(currency_from, currency_to, year)
+        rate = _get_exchange_rate(currency_from, currency_to, year)
-        if exchange_rate:
+        if rate:
             _save_converted_price(
                 purchase,
-                floatformat(purchase.price * exchange_rate, 0),
+                floatformat(purchase.price * rate, 0),
                 needs_update,
             )
 

games/tests.py

@@ -1,6 +1,6 @@
 from datetime import date
 
-from django.test import TestCase, override_settings
+from django.test import TestCase
 
 from games.models import Game, Platform, Purchase
 from games.tasks import convert_prices
@@ -29,13 +29,6 @@ class PurchaseNeedsPriceUpdateTest(TestCase):
         purchase.games.add(self.game)
         self.assertTrue(purchase.needs_price_update)
 
-        with override_settings(
-            CACHES={
-                "default": {
-                    "BACKEND": "django.core.cache.backends.locmem.LocMemCache"
-                }
-            }
-        ):
         convert_prices()
 
         purchase.refresh_from_db()