import { describe, expect, it } from "vitest";

import { isSmsReachable, isValidPhone } from "./PhoneField";

/**
 * `isSmsReachable` mirrors `isDomesticPhone` in the API's otp.service. The two
 * must agree: this one greys out the SMS option, that one decides whether the
 * message is actually sent, and a disagreement means the UI promises a text
 * nobody sends (or hides one that would have worked). These cases are the same
 * ones the API spec asserts.
 */
describe("isSmsReachable", () => {
  it.each(["+251986680099", "0986680099", "251986680099"])(
    "accepts Ethiopian mobile form %s",
    (phone) => expect(isSmsReachable(phone)).toBe(true),
  );

  it.each(["+25377123456", "25377123456", "77123456"])(
    "accepts Djibouti mobile form %s",
    (phone) => expect(isSmsReachable(phone)).toBe(true),
  );

  it.each([
    "+14155550123",
    "+447911123456",
    "0712345678",
    "+2519866",
    "12345",
    // Djibouti fixed line — valid number, not a mobile the gateway serves.
    "+25321350000",
    "+25366123456",
  ])("rejects unreachable or malformed %s", (phone) =>
    expect(isSmsReachable(phone)).toBe(false),
  );

  it.each([undefined, null, ""])("treats %s as unreachable", (phone) =>
    expect(isSmsReachable(phone)).toBe(false),
  );
});

/**
 * The country-picker input emits a PARTIAL E.164 while the user is still
 * typing — "+25377" is a non-empty string that will post happily and come back
 * as a 400 from the API's own IsValidPhone. Forms must treat "non-empty" and
 * "complete" as different questions, so this is the check they call.
 */
describe("isValidPhone", () => {
  it.each(["+25377834567", "+251911223344"])(
    "accepts the complete number %s",
    (phone) => expect(isValidPhone(phone)).toBe(true),
  );

  it.each(["+253", "+25377", "+2537712", "+251", "+2519112"])(
    "rejects the partial number %s the picker emits mid-typing",
    (phone) => expect(isValidPhone(phone)).toBe(false),
  );

  it.each([undefined, null, ""])("treats %s as invalid", (phone) =>
    expect(isValidPhone(phone)).toBe(false),
  );
});