feat(insights:category-overview): display tags breakdown alongside categories

app/apps/insights/utils/category_overview.py

@@ -10,7 +10,7 @@ from apps.currencies.utils.convert import convert
 
 
 def get_categories_totals(transactions_queryset, ignore_empty=False):
-    # Get metrics for each category and currency in a single query
+    # First get the category totals as before
     category_currency_metrics = (
         transactions_queryset.values(
             "category",
@@ -74,9 +74,65 @@ def get_categories_totals(transactions_queryset, ignore_empty=False):
         .order_by("category__name")
     )
 
+    # Get tag totals within each category with currency details
+    tag_metrics = transactions_queryset.values(
+        "category",
+        "tags",
+        "tags__name",
+        "account__currency",
+        "account__currency__code",
+        "account__currency__name",
+        "account__currency__decimal_places",
+        "account__currency__prefix",
+        "account__currency__suffix",
+        "account__currency__exchange_currency",
+    ).annotate(
+        expense_current=Coalesce(
+            Sum(
+                Case(
+                    When(type=Transaction.Type.EXPENSE, is_paid=True, then="amount"),
+                    default=Value(0),
+                    output_field=models.DecimalField(),
+                )
+            ),
+            Decimal("0"),
+        ),
+        expense_projected=Coalesce(
+            Sum(
+                Case(
+                    When(type=Transaction.Type.EXPENSE, is_paid=False, then="amount"),
+                    default=Value(0),
+                    output_field=models.DecimalField(),
+                )
+            ),
+            Decimal("0"),
+        ),
+        income_current=Coalesce(
+            Sum(
+                Case(
+                    When(type=Transaction.Type.INCOME, is_paid=True, then="amount"),
+                    default=Value(0),
+                    output_field=models.DecimalField(),
+                )
+            ),
+            Decimal("0"),
+        ),
+        income_projected=Coalesce(
+            Sum(
+                Case(
+                    When(type=Transaction.Type.INCOME, is_paid=False, then="amount"),
+                    default=Value(0),
+                    output_field=models.DecimalField(),
+                )
+            ),
+            Decimal("0"),
+        ),
+    )
+
     # Process the results to structure by category
     result = {}
 
+    # Process category totals first
     for metric in category_currency_metrics:
         # Skip empty categories if ignore_empty is True
         if ignore_empty and all(
@@ -101,7 +157,11 @@ def get_categories_totals(transactions_queryset, ignore_empty=False):
         currency_id = metric["account__currency"]
 
         if category_id not in result:
-            result[category_id] = {"name": metric["category__name"], "currencies": {}}
+            result[category_id] = {
+                "name": metric["category__name"],
+                "currencies": {},
+                "tags": {},  # Add tags container
+            }
 
         # Add currency data
         currency_data = {
@@ -162,4 +222,101 @@ def get_categories_totals(transactions_queryset, ignore_empty=False):
 
         result[category_id]["currencies"][currency_id] = currency_data
 
+    # Process tag totals and add them to the result, including untagged
+    for tag_metric in tag_metrics:
+        category_id = tag_metric["category"]
+        tag_id = tag_metric["tags"]  # Will be None for untagged transactions
+
+        if category_id in result:
+            # Initialize the tag container if not exists
+            if "tags" not in result[category_id]:
+                result[category_id]["tags"] = {}
+
+            # Determine if this is a tagged or untagged transaction
+            tag_key = tag_id if tag_id is not None else "untagged"
+            tag_name = tag_metric["tags__name"] if tag_id is not None else None
+
+            if tag_key not in result[category_id]["tags"]:
+                result[category_id]["tags"][tag_key] = {
+                    "name": tag_name,
+                    "currencies": {},
+                }
+
+            currency_id = tag_metric["account__currency"]
+
+            # Calculate tag totals
+            tag_total_current = (
+                tag_metric["income_current"] - tag_metric["expense_current"]
+            )
+            tag_total_projected = (
+                tag_metric["income_projected"] - tag_metric["expense_projected"]
+            )
+            tag_total_income = (
+                tag_metric["income_current"] + tag_metric["income_projected"]
+            )
+            tag_total_expense = (
+                tag_metric["expense_current"] + tag_metric["expense_projected"]
+            )
+            tag_total_final = tag_total_current + tag_total_projected
+
+            tag_currency_data = {
+                "currency": {
+                    "code": tag_metric["account__currency__code"],
+                    "name": tag_metric["account__currency__name"],
+                    "decimal_places": tag_metric["account__currency__decimal_places"],
+                    "prefix": tag_metric["account__currency__prefix"],
+                    "suffix": tag_metric["account__currency__suffix"],
+                },
+                "expense_current": tag_metric["expense_current"],
+                "expense_projected": tag_metric["expense_projected"],
+                "total_expense": tag_total_expense,
+                "income_current": tag_metric["income_current"],
+                "income_projected": tag_metric["income_projected"],
+                "total_income": tag_total_income,
+                "total_current": tag_total_current,
+                "total_projected": tag_total_projected,
+                "total_final": tag_total_final,
+            }
+
+            # Add exchange currency support for tags
+            if tag_metric["account__currency__exchange_currency"]:
+                from_currency = Currency.objects.get(id=currency_id)
+                exchange_currency = Currency.objects.get(
+                    id=tag_metric["account__currency__exchange_currency"]
+                )
+
+                exchanged = {}
+                for field in [
+                    "expense_current",
+                    "expense_projected",
+                    "income_current",
+                    "income_projected",
+                    "total_income",
+                    "total_expense",
+                    "total_current",
+                    "total_projected",
+                    "total_final",
+                ]:
+                    amount, prefix, suffix, decimal_places = convert(
+                        amount=tag_currency_data[field],
+                        from_currency=from_currency,
+                        to_currency=exchange_currency,
+                    )
+                    if amount is not None:
+                        exchanged[field] = amount
+                        if "currency" not in exchanged:
+                            exchanged["currency"] = {
+                                "prefix": prefix,
+                                "suffix": suffix,
+                                "decimal_places": decimal_places,
+                                "code": exchange_currency.code,
+                                "name": exchange_currency.name,
+                            }
+                if exchanged:
+                    tag_currency_data["exchanged"] = exchanged
+
+            result[category_id]["tags"][tag_key]["currencies"][
+                currency_id
+            ] = tag_currency_data
+
     return result

app/apps/insights/views.py

@@ -168,11 +168,20 @@ def category_sum_by_currency(request):
 @login_required
 @require_http_methods(["GET"])
 def category_overview(request):
-    view_type = request.session.get("insights_category_explorer_view_type", "table")
-
     if "view_type" in request.GET:
         view_type = request.GET["view_type"]
         request.session["insights_category_explorer_view_type"] = view_type
+    else:
+        view_type = request.session.get("insights_category_explorer_view_type", "table")
+
+    if "show_tags" in request.GET:
+        show_tags = request.GET["show_tags"] == "on"
+        request.session["insights_category_explorer_show_tags"] = show_tags
+        print(request.GET["show_tags"], show_tags)
+    else:
+        show_tags = request.session.get("insights_category_explorer_show_tags", True)
+
+    print(show_tags)
 
     # Get filtered transactions
     transactions = get_transactions(request, include_silent=True)
@@ -184,7 +193,7 @@ def category_overview(request):
     return render(
         request,
         "insights/fragments/category_overview/index.html",
-        {"total_table": total_table, "view_type": view_type},
+        {"total_table": total_table, "view_type": view_type, "show_tags": show_tags},
     )