fix: return authoritative materials from craft API to prevent client desync

Closes #128

apps/api/src/routes/craft.ts

@@ -148,11 +148,22 @@ craftRouter.post("/", async(context) => {
 
     const bonusType = recipe.bonus.type;
     const bonusValue = recipe.bonus.value;
+    const { materials } = state.exploration;
+    const {
+      craftedGoldMultiplier,
+      craftedEssenceMultiplier,
+      craftedClickMultiplier,
+      craftedCombatMultiplier,
+    } = updatedMultipliers;
     const response: CraftRecipeResponse = {
       bonusType,
       bonusValue,
+      craftedClickMultiplier,
+      craftedCombatMultiplier,
+      craftedEssenceMultiplier,
+      craftedGoldMultiplier,
+      materials,
       recipeId,
-      ...updatedMultipliers,
     };
     return context.json(response);
   } catch (error) {

apps/web/src/context/gameContext.tsx

@@ -1864,14 +1864,6 @@ export const GameProvider = ({
         if (previous?.exploration === undefined) {
           return previous;
         }
-        let materials = [ ...previous.exploration.materials ];
-        for (const request of recipe.requiredMaterials) {
-          materials = materials.map((mat) => {
-            return mat.materialId === request.materialId
-              ? { ...mat, quantity: mat.quantity - request.quantity }
-              : mat;
-          });
-        }
         return {
           ...previous,
           exploration: {
@@ -1884,7 +1876,7 @@ export const GameProvider = ({
               ...previous.exploration.craftedRecipeIds,
               recipeId,
             ],
-            materials: materials,
+            materials: result.materials,
           },
         };
       });

packages/types/src/interfaces/api.ts

@@ -400,6 +400,7 @@ interface CraftRecipeResponse {
   craftedEssenceMultiplier: number;
   craftedClickMultiplier:   number;
   craftedCombatMultiplier:  number;
+  materials:                Array<{ materialId: string; quantity: number }>;
 }
 
 interface ForceUnlocksResponse {