refactor(movements): normalize snapshot convention to mutate-then-write

src/use-cases/asset.use-cases.ts

@@ -173,6 +173,10 @@ export async function createAssetUseCase(
             )
           : null
 
+      if (status === "AVAILABLE") {
+        await ItemService.updateStock(itemId, 1, tx)
+      }
+
       await MovementService.create(
         {
           itemId,
@@ -186,10 +190,6 @@ export async function createAssetUseCase(
         tx,
       )
 
-      if (status === "AVAILABLE") {
-        await ItemService.updateStock(itemId, 1, tx)
-      }
-
       return {
         success: true,
         assetId: newAsset.id,
@@ -290,6 +290,37 @@ export async function updateAssetUseCase(
         tx,
       )
 
+      const shouldIncrementNextItemStock =
+        transition.willBeAvailable &&
+        (!transition.wasAvailable || transition.itemChanged)
+      const shouldDecrementPreviousItemStock =
+        transition.wasAvailable &&
+        (!transition.willBeAvailable || transition.itemChanged)
+
+      if (shouldIncrementNextItemStock) {
+        await ItemService.updateStock(transition.nextItemId, 1, tx)
+      }
+
+      if (shouldDecrementPreviousItemStock) {
+        if (!transition.previousItemId) {
+          throw new AssetTransitionError({
+            itemId: ["Previous item not found for available asset"],
+          })
+        }
+
+        const stockWasDecremented = await ItemService.decrementStockIfAvailable(
+          transition.previousItemId,
+          1,
+          tx,
+        )
+
+        if (!stockWasDecremented) {
+          throw new AssetTransitionError({
+            stock: ["Item does not have enough stock"],
+          })
+        }
+      }
+
       let closedActiveAssignment = false
 
       if (transition.activeAssignment && !transition.willBeAssigned) {
@@ -325,13 +356,6 @@ export async function updateAssetUseCase(
         closedActiveAssignment = true
       }
 
-      const shouldIncrementNextItemStock =
-        transition.willBeAvailable &&
-        (!transition.wasAvailable || transition.itemChanged)
-      const shouldDecrementPreviousItemStock =
-        transition.wasAvailable &&
-        (!transition.willBeAvailable || transition.itemChanged)
-
       if (
         transition.statusChanged &&
         !transition.hasPerson &&
@@ -422,30 +446,6 @@ export async function updateAssetUseCase(
         )
       }
 
-      if (shouldIncrementNextItemStock) {
-        await ItemService.updateStock(transition.nextItemId, 1, tx)
-      }
-
-      if (shouldDecrementPreviousItemStock) {
-        if (!transition.previousItemId) {
-          throw new AssetTransitionError({
-            itemId: ["Previous item not found for available asset"],
-          })
-        }
-
-        const stockWasDecremented = await ItemService.decrementStockIfAvailable(
-          transition.previousItemId,
-          1,
-          tx,
-        )
-
-        if (!stockWasDecremented) {
-          throw new AssetTransitionError({
-            stock: ["Item does not have enough stock"],
-          })
-        }
-      }
-
       if (transition.willBeAssigned && transition.nextPersonId) {
         const activeAssignment = transition.activeAssignment