feat: pagination and query params for a deal end-point

services/deal.py

@@ -1,7 +1,10 @@
+import math
+
 from fastapi import HTTPException
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from repositories import DealRepository
+from schemas.base import PaginationSchema
 from schemas.deal import *
 
 
@@ -9,10 +12,25 @@ class DealService:
     def __init__(self, session: AsyncSession):
         self.repository = DealRepository(session)
 
-    async def get_deals(self, board_id: int) -> GetDealsResponse:
-        deals = await self.repository.get_all(board_id)
+    async def get_deals(
+        self,
+        pagination: PaginationSchema,
+        board_id: Optional[int],
+        project_id: Optional[int],
+    ) -> GetDealsResponse:
+        deals, total_items = await self.repository.get_all(
+            board_id, project_id, pagination.page, pagination.items_per_page
+        )
+
+        total_pages = 1
+        if pagination.items_per_page:
+            total_pages = math.ceil(total_items / pagination.items_per_page)
+
         return GetDealsResponse(
-            deals=[DealSchema.model_validate(deal) for deal in deals]
+            deals=[DealSchema.model_validate(deal) for deal in deals],
+            pagination_info=PaginationInfoSchema(
+                total_pages=total_pages, total_items=total_items
+            ),
         )
 
     async def create_deal(self, request: CreateDealRequest) -> CreateDealResponse: