a metric shit ton. fixed a lot of part_role issues. removed almost all hardcoded categories and used db roles.

data/partRoleMappings.ts

@@ -1,11 +1,27 @@
 import type { CategoryId } from "@/types/gunbuilder";
 
+/**
+ * Normalize backend part roles into a canonical kebab-case form.
+ * - trims whitespace
+ * - lowercases
+ * - converts snake_case / ENUM_CASE to kebab-case
+ */
+export const normalizePartRole = (role: string) =>
+  role.trim().toLowerCase().replace(/_/g, "-");
+
 /**
  * Maps canonical kebab-case CategoryIds to their associated part roles from the backend.
+ *
+ * Notes:
+ * - Keep the list here as the *source of truth*.
+ * - The derived `PART_ROLE_TO_CATEGORY` map below stores both the original and normalized keys.
  */
 export const CATEGORY_TO_PART_ROLES: Partial<Record<CategoryId, string[]>> = {
   // ===== UPPER =====
-  upper: ["upper-receiver", "upper"],
+  "upper-receiver": ["upper-receiver"],
+  // (optional) Back-compat if anything still uses the old ids:
+  // upper: ["upper-receiver", "upper"],
+
   "complete-upper": ["complete-upper"],
   barrel: ["barrel"],
   "gas-block": ["gas-block"],
@@ -17,7 +33,10 @@ export const CATEGORY_TO_PART_ROLES: Partial<Record<CategoryId, string[]>> = {
   bcg: ["bcg", "bolt-carrier-group"],
 
   // ===== LOWER =====
+  "lower-receiver": ["lower-receiver", "lower", "LOWER_RECEIVER_STRIPPED"],
+  // (optional) Back-compat if anything still uses the old ids:
   lower: ["lower-receiver", "lower", "LOWER_RECEIVER_STRIPPED"],
+
   "complete-lower": ["complete-lower"],
   "lower-parts": ["lower-parts-kit", "lower-parts"],
   trigger: ["trigger", "trigger-kit"],
@@ -32,24 +51,51 @@ export const CATEGORY_TO_PART_ROLES: Partial<Record<CategoryId, string[]>> = {
 
   // ===== ACCESSORIES =====
   magazine: ["magazine", "mag", "magazine-ar15", "magazine-308", "drum-magazine"],
-  "weapon-light": ["weapon-light", "light", "weapon-light-laser", "light-laser-combo", "laser"],
+  "weapon-light": [
+    "weapon-light",
+    "light",
+    "weapon-light-laser",
+    "light-laser-combo",
+    "laser",
+  ],
   foregrip: ["vertical-grip", "angled-foregrip", "foregrip", "handstop"],
   bipod: ["bipod"],
   sling: ["sling", "sling-mount", "sling-swivel", "qd-sling-mount"],
-  "rail-accessory": ["rail-section", "picatinny-rail-section", "m-lok-rail-section", "keymod-rail-section", "rail-cover", "rail-panel"],
-  tools: ["tool", "armorer-tool", "armorer-wrench", "cleaning-kit", "bore-snake", "vise-block", "torque-wrench"],
+  "rail-accessory": [
+    "rail-section",
+    "picatinny-rail-section",
+    "m-lok-rail-section",
+    "keymod-rail-section",
+    "rail-cover",
+    "rail-panel",
+  ],
+  tools: [
+    "tool",
+    "armorer-tool",
+    "armorer-wrench",
+    "cleaning-kit",
+    "bore-snake",
+    "vise-block",
+    "torque-wrench",
+  ],
 };
 
+/**
+ * Reverse lookup: backend partRole -> CategoryId.
+ *
+ * Implementation details:
+ * - Stores BOTH the original role and its normalized version as keys.
+ * - De-dupes role lists per category.
+ */
 export const PART_ROLE_TO_CATEGORY: Record<string, CategoryId> = Object.entries(
   CATEGORY_TO_PART_ROLES
 ).reduce((acc, [categoryId, roles]) => {
-  for (const role of roles) {
-    // store the original string
-    acc[role] = categoryId as CategoryId;
+  const unique = Array.from(new Set(roles ?? []));
 
-    // also store a normalized version (handles ENUM_CASE and snake_case)
-    const normalized = role.trim().toLowerCase().replace(/_/g, "-");
-    acc[normalized] = categoryId as CategoryId;
+  for (const role of unique) {
+    acc[role] = categoryId as CategoryId;
+    acc[normalizePartRole(role)] = categoryId as CategoryId;
   }
+
   return acc;
 }, {} as Record<string, CategoryId>);