// @vitest-environment jsdom
import { afterEach, describe, expect, it, vi } from 'vitest';
import type { WidgetConfig } from './types';
import { trackSizeCompleted, trackTryOnCompleted } from './events';

const config = {
	eventsUrl: 'https://brain.test/events',
	publishableKey: 'pk_test',
	analyticsEnabled: true,
	visitorKey: 'visitor-1',
	customerId: 'customer-2',
} as WidgetConfig;

describe( 'trackTryOnCompleted', () => {
	afterEach( () => {
		delete window.aisthetixTrackEvent;
		vi.unstubAllGlobals();
	} );

	it( 'uses the bootstrap analytics contract when available', () => {
		window.aisthetixTrackEvent = vi.fn();
		trackTryOnCompleted( config, '42' );
		expect( window.aisthetixTrackEvent ).toHaveBeenCalledWith(
			'aisthetix_tryon_completed', { productId: '42' }
		);
	} );

	it( 'falls back to a fire-and-forget POST with the same shaped fields', () => {
		const fetchMock = vi.fn().mockResolvedValue( {} );
		vi.stubGlobal( 'fetch', fetchMock );
		trackTryOnCompleted( config, '' );

		const [ endpoint, request ] = fetchMock.mock.calls[ 0 ];
		expect( endpoint ).toBe( config.eventsUrl );
		expect( request.keepalive ).toBe( true );
		expect( request.credentials ).toBe( 'omit' );
		expect( JSON.parse( request.body ) ).toEqual( expect.objectContaining( {
			eventName: 'aisthetix_tryon_completed',
			visitorKey: 'visitor-1',
			customerId: 'customer-2',
			productId: null,
		} ) );
	} );

	it( 'stays inert without fallback credentials and swallows analytics failures', () => {
		const fetchMock = vi.fn();
		vi.stubGlobal( 'fetch', fetchMock );
		trackTryOnCompleted( { ...config, eventsUrl: '' }, '42' );
		expect( fetchMock ).not.toHaveBeenCalled();

		Object.defineProperty( window, 'aisthetixTrackEvent', {
			configurable: true,
			get: () => { throw new Error( 'blocked' ); },
		} );
		expect( () => trackTryOnCompleted( config, '42' ) ).not.toThrow();
	} );
} );

describe( 'trackSizeCompleted', () => {
	afterEach( () => {
		delete window.aisthetixTrackEvent;
		vi.unstubAllGlobals();
	} );

	it( 'uses the same attribution transport with product and variation', () => {
		window.aisthetixTrackEvent = vi.fn();
		trackSizeCompleted( config, '42', '7' );
		expect( window.aisthetixTrackEvent ).toHaveBeenCalledWith(
			'aisthetix_size_completed', { productId: '42', variantId: '7' }
		);
	} );

	it( 'falls back to one privacy-safe keepalive request', () => {
		const fetchMock = vi.fn().mockResolvedValue( {} );
		vi.stubGlobal( 'fetch', fetchMock );
		trackSizeCompleted( config, '42', null );
		const body = JSON.parse( fetchMock.mock.calls[ 0 ][ 1 ].body );
		expect( body ).toEqual( expect.objectContaining( {
			eventName: 'aisthetix_size_completed',
			productId: '42',
			variantId: null,
			visitorKey: 'visitor-1',
		} ) );
		expect( JSON.stringify( body ) ).not.toContain( 'height' );
	} );

	it( 'fails closed when the bootstrap consent gate is unavailable and attribution is disabled', () => {
		const fetchMock = vi.fn();
		vi.stubGlobal( 'fetch', fetchMock );
		trackSizeCompleted( { ...config, analyticsEnabled: false }, '42', '7' );
		expect( fetchMock ).not.toHaveBeenCalled();
	} );
} );