Migrating to Postgres from sqlite3

2025-05-20 18:41:32 +00:00
parent ac2f83c061
commit a56d804b58
38 changed files with 5017 additions and 4389 deletions
@@ -0,0 +1,126 @@
+import logging
+from typing import Optional, List, Dict, Any
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy.future import select
+from sqlalchemy import update, func, and_, or_
+from datetime import datetime, timezone
+
+from db.models import PromoCode, PromoCodeActivation, User, Payment
+
+
+async def create_promo_code(session: AsyncSession,
+                            promo_data: Dict[str, Any]) -> PromoCode:
+
+    new_promo = PromoCode(**promo_data)
+    session.add(new_promo)
+    await session.flush()
+    await session.refresh(new_promo)
+    logging.info(
+        f"Promo code '{new_promo.code}' created with ID {new_promo.promo_code_id}"
+    )
+    return new_promo
+
+
+async def get_promo_code_by_id(session: AsyncSession,
+                               promo_code_id: int) -> Optional[PromoCode]:
+    return await session.get(PromoCode, promo_code_id)
+
+
+async def get_active_promo_code_by_code_str(
+        session: AsyncSession, code_str: str) -> Optional[PromoCode]:
+    stmt = select(PromoCode).where(
+        PromoCode.code == code_str.upper(), PromoCode.is_active == True,
+        PromoCode.current_activations < PromoCode.max_activations,
+        or_(PromoCode.valid_until == None, PromoCode.valid_until
+            > datetime.now(timezone.utc)))
+    result = await session.execute(stmt)
+    return result.scalar_one_or_none()
+
+
+async def get_all_active_promo_codes(session: AsyncSession,
+                                     limit: int = 20,
+                                     offset: int = 0) -> List[PromoCode]:
+    stmt = (select(PromoCode).where(
+        PromoCode.is_active == True,
+        or_(PromoCode.valid_until == None, PromoCode.valid_until
+            > datetime.now(timezone.utc))).order_by(
+                PromoCode.created_at.desc()).limit(limit).offset(offset))
+    result = await session.execute(stmt)
+    return result.scalars().all()
+
+
+async def increment_promo_code_usage(
+        session: AsyncSession, promo_code_id: int) -> Optional[PromoCode]:
+    promo = await get_promo_code_by_id(session, promo_code_id)
+    if promo:
+        if promo.current_activations < promo.max_activations:
+            promo.current_activations += 1
+            await session.flush()
+            await session.refresh(promo)
+            return promo
+        else:
+            logging.warning(
+                f"Promo code {promo.code} (ID: {promo_code_id}) already reached max activations."
+            )
+            return None
+    return None
+
+
+async def get_user_activation_for_promo(
+        session: AsyncSession, promo_code_id: int,
+        user_id: int) -> Optional[PromoCodeActivation]:
+
+    stmt = select(PromoCodeActivation).where(
+        PromoCodeActivation.promo_code_id == promo_code_id,
+        PromoCodeActivation.user_id == user_id).limit(1)
+    result = await session.execute(stmt)
+    return result.scalar_one_or_none()
+
+
+async def record_promo_activation(
+        session: AsyncSession,
+        promo_code_id: int,
+        user_id: int,
+        payment_id: Optional[int] = None) -> Optional[PromoCodeActivation]:
+
+    existing_activation = await get_user_activation_for_promo(
+        session, promo_code_id, user_id)
+    if existing_activation:
+        logging.info(
+            f"User {user_id} has already activated promo code {promo_code_id}. Activation ID: {existing_activation.activation_id}"
+        )
+        return existing_activation
+
+    from .user_dal import get_user_by_id
+    user = await get_user_by_id(session, user_id)
+    promo = await get_promo_code_by_id(session, promo_code_id)
+    if not user or not promo:
+        logging.error(
+            f"Cannot record promo activation: User {user_id} or Promo {promo_code_id} not found."
+        )
+        return None
+
+    if payment_id:
+        from .payment_dal import get_payment_by_db_id
+        payment = await get_payment_by_db_id(session, payment_id)
+        if not payment:
+            logging.error(
+                f"Cannot record promo activation: Payment {payment_id} not found."
+            )
+
+            return None
+
+    activation_data = {
+        "promo_code_id": promo_code_id,
+        "user_id": user_id,
+        "payment_id": payment_id,
+        "activated_at": datetime.now(timezone.utc)
+    }
+    new_activation = PromoCodeActivation(**activation_data)
+    session.add(new_activation)
+    await session.flush()
+    await session.refresh(new_activation)
+    logging.info(
+        f"Promo code {promo_code_id} activated by user {user_id}. Activation ID: {new_activation.activation_id}"
+    )
+    return new_activation