// Provider contract tests use a fake widget and fake proof only; no real captcha or network request is performed.
import { test } from 'node:test';
import assert from 'node:assert/strict';
import { setImmediate } from 'node:timers/promises';
import { solveCaptcha } from '../../public/js/skland/captcha.js';

function fakeProvider(proof) {
  const events = {};
  const calls = { shown: 0, destroyed: 0, options: null };
  const widget = {
    onReady(fn) { events.ready = fn; }, onSuccess(fn) { events.success = fn; },
    onClose(fn) { events.close = fn; }, onError(fn) { events.error = fn; },
    getValidate() { return proof; },
    showCaptcha() { calls.shown++; }, verify() { calls.shown++; },
    destroy() { calls.destroyed++; events.close?.(); },
  };
  const init = (options, ready) => { calls.options = options; ready(widget); };
  return { events, calls, scope: { initGeetest4: init, initGeetest: init }, load: async () => {} };
}

test('captcha v4 opens the provider widget and preserves its proof plus the upstream challenge', async () => {
  const proof = { captcha_id: 'TEST', lot_number: 'TEST-LOT', captcha_output: 'TEST-PROOF', pass_token: 'TEST-PASS', gen_time: '1' };
  const provider = fakeProvider(proof);
  const pending = solveCaptcha({ geetestId: 'TEST', challenge: 'TEST-CHALLENGE', riskType: 'slide' }, provider);
  await setImmediate();
  assert.equal(provider.calls.shown, 0, 'initialization does not submit a proof');
  provider.events.ready();
  assert.equal(provider.calls.shown, 1);
  assert.deepEqual(provider.calls.options, { captchaId: 'TEST', riskType: 'slide', product: 'bind', language: 'zho' });
  provider.events.success();
  assert.deepEqual(await pending, { ...proof, challenge: 'TEST-CHALLENGE' });
  assert.equal(provider.calls.destroyed, 1);
});

test('captcha v3 preserves the three provider fields for the SMS retry', async () => {
  const proof = { geetest_challenge: 'TEST-CH', geetest_validate: 'TEST-VALIDATE', geetest_seccode: 'TEST-SEC' };
  const provider = fakeProvider(proof);
  const pending = solveCaptcha({ gt: 'TEST', challenge: 'TEST-CH', new_captcha: true }, provider);
  await setImmediate();
  provider.events.ready();
  provider.events.success();
  assert.deepEqual(await pending, proof);
  assert.equal(provider.calls.options.https, true);
});

test('captcha cancellation never yields a proof, including after a provider retry event', async () => {
  const provider = fakeProvider({ captcha_output: 'UNUSED-TEST-PROOF' });
  const pending = solveCaptcha({ geetestId: 'TEST' }, provider);
  await setImmediate();
  provider.events.error({ error_code: 'error_01' });
  provider.events.close();
  provider.events.success();
  assert.equal(await pending, null);
  assert.equal(provider.calls.destroyed, 1);
});

test('unsupported or failed captchas are rejected so the UI can offer retry', async () => {
  await assert.rejects(() => solveCaptcha({}), /captcha_type/);
  await assert.rejects(() => solveCaptcha({ geetestId: 'TEST' }, { load: async () => { throw new Error('captcha_load'); } }), /captcha_load/);
  const provider = fakeProvider(null);
  const pending = solveCaptcha({ geetestId: 'TEST' }, provider);
  const rejected = assert.rejects(pending, /captcha_validate/);
  await setImmediate();
  provider.events.success();
  await rejected;
});