// @vitest-environment jsdom
/**
 * Opt-in consent gate for the un-delayable bootstrap loader (assets/bootstrap.js).
 *
 * The bootstrap exposes its event sender as window.aisthetixTrackEvent, so we can
 * drive the real gate end-to-end: load the file into jsdom, mock fetch +
 * AISTHETIX_CONFIG, and assert whether an event is POSTed.
 *
 * Contract (2026-07-18 wordpress.org compliance):
 *   - default (no CMP, analyticsEnabled false) -> NO event.
 *   - analyticsEnabled true, no CMP            -> event.
 *   - CMP grants (analyticsEnabled false)      -> event.
 *   - CMP denies (analyticsEnabled true)       -> NO event.
 */
import { readFileSync } from 'node:fs';
import { resolve } from 'node:path';
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';

const BOOTSTRAP_SRC = readFileSync(
	resolve( __dirname, '../../assets/bootstrap.js' ),
	'utf8'
);

function loadBootstrap( config: Record< string, unknown > ) {
	( window as any ).AISTHETIX_CONFIG = config;
	// Execute the IIFE in the jsdom window scope; it re-exposes aisthetixTrackEvent.
	// eslint-disable-next-line no-new-func
	new Function( BOOTSTRAP_SRC )();
}

function track() {
	( window as any ).aisthetixTrackEvent( 'product_viewed', { productId: '1' } );
}

const BASE = {
	eventsUrl: 'https://woo.aisthetix.fyi/api/events',
	publishableKey: 'pk_test',
};

describe( 'bootstrap analytics consent gate (opt-in)', () => {
	let fetchMock: ReturnType< typeof vi.fn >;

	beforeEach( () => {
		fetchMock = vi.fn( () => Promise.resolve( { ok: true } ) );
		( window as any ).fetch = fetchMock;
		delete ( window as any ).Cookiebot;
		delete ( window as any ).gtag;
		delete ( window as any ).google_tag_data;
		delete ( window as any ).dataLayer;
		document.cookie = 'cmplz_statistics=; expires=Thu, 01 Jan 1970 00:00:00 GMT';
	} );

	afterEach( () => {
		delete ( window as any ).aisthetixTrackEvent;
		delete ( window as any ).AISTHETIX_CONFIG;
		vi.restoreAllMocks();
	} );

	it( 'does NOT send when analytics is off and no CMP is present (default)', () => {
		loadBootstrap( { ...BASE, analyticsEnabled: false } );
		track();
		expect( fetchMock ).not.toHaveBeenCalled();
	} );

	it( 'sends when the merchant enabled analytics and no CMP is present', () => {
		loadBootstrap( { ...BASE, analyticsEnabled: true } );
		track();
		expect( fetchMock ).toHaveBeenCalledTimes( 1 );
	} );

	it( 'sends when a CMP grants analytics even if the merchant toggle is off', () => {
		( window as any ).Cookiebot = { consent: { statistics: true } };
		loadBootstrap( { ...BASE, analyticsEnabled: false } );
		track();
		expect( fetchMock ).toHaveBeenCalledTimes( 1 );
	} );

	it( 'does NOT send when a CMP denies analytics even if the merchant toggle is on', () => {
		( window as any ).Cookiebot = { consent: { statistics: false } };
		loadBootstrap( { ...BASE, analyticsEnabled: true } );
		track();
		expect( fetchMock ).not.toHaveBeenCalled();
	} );
} );