Add SQL query for average cost retrieval and generate TriggerLog model

prisma/schema.prisma

@@ -82,6 +82,8 @@ model Product {
   stockAdjustments       StockAdjustment[]       @relation("Product_Stock_Adjustments")
   stockMovements         StockMovement[]         @relation("StockMovement_Product")
 
+  stockBalances StockBalance[] @relation("StockBalance_Product")
+
   @@index([brandId], map: "Products_brandId_fkey")
   @@index([categoryId], map: "Products_categoryId_fkey")
   @@map("Products")
@@ -129,6 +131,7 @@ model Supplier {
   deletedAt        DateTime?         @db.Timestamp(0)
   productCharges   ProductCharge[]   @relation("Supplier_Product_Charges")
   purchaseReceipts PurchaseReceipt[]
+  stockMovements   StockMovement[]   @relation("StockMovement_Supplier")
 
   @@map("Suppliers")
 }
@@ -158,6 +161,7 @@ model Inventory {
   name                   String              @db.VarChar(255)
   location               String?             @db.VarChar(255)
   isActive               Boolean             @default(true)
+  isPointOfSale          Boolean             @default(false)
   createdAt              DateTime            @default(now()) @db.Timestamp(0)
   updatedAt              DateTime            @updatedAt @db.Timestamp(0)
   deletedAt              DateTime?           @db.Timestamp(0)
@@ -167,6 +171,7 @@ model Inventory {
   purchaseReceipts       PurchaseReceipt[]
   stockAdjustments       StockAdjustment[]   @relation("Inventory_Stock_Adjustments")
   stockMovements         StockMovement[]     @relation("StockMovement_Inventory")
+  stockBalances          StockBalance[]      @relation("StockBalance_inventory")
 
   @@map("Inventories")
 }
@@ -290,19 +295,22 @@ model SalesInvoiceItem {
 }
 
 model StockMovement {
-  id            Int                   @id @default(autoincrement())
-  type          MovementType
-  quantity      Decimal               @db.Decimal(10, 2)
-  fee           Decimal               @db.Decimal(10, 2)
-  totalCost     Decimal               @db.Decimal(10, 2)
-  referenceType MovementReferenceType
-  referenceId   String
-  createdAt     DateTime              @default(now()) @db.Timestamp(0)
-  productId     Int
-  inventoryId   Int
-  avgCost       Decimal               @db.Decimal(10, 2)
-  inventory     Inventory             @relation("StockMovement_Inventory", fields: [inventoryId], references: [id])
-  product       Product               @relation("StockMovement_Product", fields: [productId], references: [id])
+  id              Int                   @id @default(autoincrement())
+  type            MovementType
+  quantity        Decimal               @db.Decimal(10, 2)
+  fee             Decimal               @db.Decimal(10, 2)
+  totalCost       Decimal               @db.Decimal(10, 2)
+  referenceType   MovementReferenceType
+  referenceId     String
+  createdAt       DateTime              @default(now()) @db.Timestamp(0)
+  productId       Int
+  inventoryId     Int
+  avgCost         Decimal               @db.Decimal(10, 2)
+  remainedInStock Decimal               @default(0) @db.Decimal(10, 2)
+  inventory       Inventory             @relation("StockMovement_Inventory", fields: [inventoryId], references: [id])
+  product         Product               @relation("StockMovement_Product", fields: [productId], references: [id])
+  supplierId      Int?
+  supplier        Supplier?             @relation("StockMovement_Supplier", fields: [supplierId], references: [id])
 
   @@index([inventoryId], map: "Stock_Movements_inventoryId_fkey")
   @@index([productId], map: "Stock_Movements_productId_fkey")
@@ -310,12 +318,25 @@ model StockMovement {
 }
 
 model StockBalance {
-  quantity  Decimal
-  totalCost Decimal
-  updatedAt DateTime @default(now()) @updatedAt @db.Timestamp(0)
-  ProductId Int      @id
-  avgCost   Decimal
+  id Int @id @default(autoincrement())
 
+  productId   Int
+  inventoryId Int
+
+  quantity Decimal @default(0) @db.Decimal(14, 3)
+
+  avgCost   Decimal @default(0) @db.Decimal(14, 2)
+  totalCost Decimal @default(0) @db.Decimal(14, 2)
+
+  createdAt DateTime @default(now()) @db.Timestamp(0)
+  updatedAt DateTime @updatedAt @db.Timestamp(0)
+
+  product   Product   @relation("StockBalance_Product", fields: [productId], references: [id])
+  inventory Inventory @relation("StockBalance_inventory", fields: [inventoryId], references: [id])
+
+  @@unique([productId, inventoryId])
+  @@index([productId])
+  @@index([inventoryId])
   @@map("Stock_Balance")
 }
 
@@ -432,6 +453,7 @@ enum MovementReferenceType {
   PURCHASE
   SALES
   ADJUSTMENT
+  INVENTORY_TRANSFER
 }
 
 enum stock_cardex_type {
@@ -451,3 +473,12 @@ enum stock_movements_view_referenceType {
   SALES
   ADJUSTMENT
 }
+
+model TriggerLog {
+  id        Int      @id @default(autoincrement())
+  name      String   @db.Text
+  message   String   @db.Text
+  createdAt DateTime @default(now()) @db.Timestamp(0)
+
+  @@map("Trigger_Logs")
+}