import { z } from "zod";
import { emailSchema, passwordSchema } from "../../../lib/validation";

/**
 * Auth form schemas — validated with TanStack Form
 * (`@tanstack/react-form` + `zodValidator` from `@tanstack/zod-form-adapter`).
 *
 * Rules mirror the server-side config in `apps/worker/src/lib/auth/auth-options.ts`
 * (email/password + username plugin):
 * - password minimum 8 chars (`minPasswordLength: 8`)
 * - username 3–30 chars, alphanumeric + underscores (username plugin default)
 */

export const firstNameSchema = z
  .string()
  .trim()
  .min(1, "First name is required")
  .max(50, "First name is too long");

export const lastNameSchema = z
  .string()
  .trim()
  .min(1, "Last name is required")
  .max(50, "Last name is too long");

export const usernameSchema = z
  .string()
  .trim()
  .refine((value) => value === "" || /^[a-zA-Z0-9_]{3,30}$/.test(value), {
    message: "3–30 characters — letters, numbers and underscores only",
  });

export const loginSchema = z.object({
  email: emailSchema,
  password: passwordSchema,
});

export const signupSchema = z
  .object({
    firstName: firstNameSchema,
    lastName: lastNameSchema,
    email: emailSchema,
    username: usernameSchema,
    password: passwordSchema,
    confirmPassword: z.string(),
  })
  .refine((data) => data.password === data.confirmPassword, {
    message: "Passwords do not match",
    path: ["confirmPassword"],
  });

export type SignupInput = z.infer<typeof signupSchema>;
export type LoginInput = z.infer<typeof loginSchema>;