add basic crud for ai budgets

server/routers/aiBudget/validation.ts

@@ -0,0 +1,46 @@
+import { z } from "zod";
+
+export const aiBudgetUnitSchema = z.enum(["usd", "tokens"]);
+
+export const aiBudgetPeriodSchema = z.enum([
+    "monthly",
+    "yearly",
+    "lifetime",
+    "daily",
+    "hourly",
+    "weekly"
+]);
+
+export const aiBudgetEnforcementSchema = z.enum(["hard", "soft"]);
+
+export function refineBudgetScopeFields(
+    data: {
+        providerId?: number | null;
+        modelId?: number | null;
+        resourceId?: number | null;
+        siteResourceId?: number | null;
+        roleId?: number | null;
+    },
+    ctx: z.RefinementCtx
+) {
+    const scopeFields = [
+        data.providerId,
+        data.modelId,
+        data.resourceId,
+        data.siteResourceId,
+        data.roleId
+    ];
+
+    const setCount = scopeFields.filter(
+        (value) => value !== null && value !== undefined
+    ).length;
+
+    if (setCount > 1) {
+        ctx.addIssue({
+            code: "custom",
+            message:
+                "Only one of providerId, modelId, resourceId, siteResourceId, or roleId may be set on a budget",
+            path: ["providerId"]
+        });
+    }
+}