Restructure into full project layout

backend/app/services/imports/enrichment.py

@@ -0,0 +1,63 @@
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+from sqlalchemy.dialects.postgresql import insert
+
+from app.models.collection import CollectionCard
+from app.services.imports.models import RawCardRow
+from app.services import scryfall
+
+
+async def enrich_and_upsert(rows: list[RawCardRow], user_id: int, db: AsyncSession) -> int:
+    # Try set+collector first for exact matches
+    enriched = {}
+    name_lookup = []
+
+    for row in rows:
+        if row.set_code and row.collector_number:
+            card = await scryfall.get_card_by_set_and_collector(row.set_code, row.collector_number)
+            if card:
+                enriched[row.card_name.lower()] = card
+                continue
+        name_lookup.append(row.card_name)
+
+    # Batch enrich remaining by name
+    if name_lookup:
+        name_map = await scryfall.batch_enrich_by_name(name_lookup)
+        enriched.update(name_map)
+
+    count = 0
+    for row in rows:
+        sf_data = enriched.get(row.card_name.lower())
+        if not sf_data:
+            continue
+
+        scryfall_id = sf_data["id"]
+
+        # Upsert — add quantities if card already exists
+        result = await db.execute(
+            select(CollectionCard).where(
+                CollectionCard.owner_id == user_id,
+                CollectionCard.scryfall_id == scryfall_id,
+            )
+        )
+        existing = result.scalar_one_or_none()
+
+        if existing:
+            existing.quantity += row.quantity
+            existing.foil_quantity += row.foil_quantity
+            existing.scryfall_data = sf_data
+        else:
+            db.add(CollectionCard(
+                owner_id=user_id,
+                card_name=sf_data.get("name", row.card_name),
+                set_code=sf_data.get("set", row.set_code),
+                collector_number=sf_data.get("collector_number", row.collector_number),
+                quantity=row.quantity,
+                foil_quantity=row.foil_quantity,
+                scryfall_id=scryfall_id,
+                scryfall_data=sf_data,
+            ))
+        count += 1
+
+    await db.commit()
+    return count