import { z } from "zod/v4";

export const CustomerIdSchema = z
	.string()
	.refine(
		(val) => {
			if (val === "") return false;
			if (val.includes("@")) return false;
			if (val.includes(" ")) return false;
			if (val.includes(".")) return false;
			return /^[a-zA-Z0-9_-]+$/.test(val);
		},
		{
			error: (issue) => {
				const input = issue.input as string;
				if (input === "") return { message: "can't be an empty string" };
				if (input.includes("@"))
					return {
						message:
							"cannot contain @ symbol. Use only letters, numbers, underscores, and hyphens.",
					};
				if (input.includes(" "))
					return {
						message:
							"cannot contain spaces. Use only letters, numbers, underscores, and hyphens.",
					};
				if (input.includes("."))
					return {
						message:
							"cannot contain periods. Use only letters, numbers, underscores, and hyphens.",
					};
				const invalidChar = input.match(/[^a-zA-Z0-9_-]/)?.[0];
				return {
					message: `cannot contain '${invalidChar}'. Use only letters, numbers, underscores, and hyphens.`,
				};
			},
		},
	)
	.describe("Your unique identifier for the customer")
	.meta({
		title: "CustomerId",
		description: "Your unique identifier for the customer",
	});