import { z } from "zod";
function formatZodPath(path: Array<string | number | symbol>): string {
if (path.length === 0) return "root";
return path
.map((segment) =>
typeof segment === "number" ? `[${segment}]` : String(segment),
)
.join(".");
}
/**
* Format Zod errors into a compact `path: message` string.
*/
export function formatZodError(error: z.ZodError): string {
const parts = error.issues.map((issue) => {
const path = formatZodPath(issue.path);
return `${path}: ${issue.message}`;
});
return Array.from(new Set(parts)).join("; ");
}
/**
* Parse unknown input and throw a readable error.
*/
export function parseWithSchema<T>(
schema: z.ZodType<T>,
input: unknown,
name: string,
): T {
const res = schema.safeParse(input);
if (!res.success) {
throw new Error(`Invalid ${name} payload: ${formatZodError(res.error)}`);
}
return res.data;
}
