/**
 * External dependencies
 */
import { get } from 'lodash';

/**
 * WordPress dependencies
 */
import {
	enablePageDialogAccept,
	isOfflineMode,
	setBrowserViewport,
} from '@wordpress/e2e-test-utils';

/**
 * Environment variables
 */
const { PUPPETEER_TIMEOUT } = process.env;

/**
 * Set of console logging types observed to protect against unexpected yet
 * handled (i.e. not catastrophic) errors or warnings. Each key corresponds
 * to the Puppeteer ConsoleMessage type, its value the corresponding function
 * on the console global object.
 *
 * @type {Object<string,string>}
 */
const OBSERVED_CONSOLE_MESSAGE_TYPES = {
	warning: 'warn',
	error: 'error',
};

// The Jest timeout is increased because these tests are a bit slow
jest.setTimeout( PUPPETEER_TIMEOUT || 100000 );

async function setupBrowser() {
	await setBrowserViewport( 'large' );
}

/**
 * Adds a page event handler to emit uncaught exception to process if one of
 * the observed console logging types is encountered.
 */
function observeConsoleLogging() {
	page.on( 'console', ( message ) => {
		const type = message.type();
		if ( ! OBSERVED_CONSOLE_MESSAGE_TYPES.hasOwnProperty( type ) ) {
			return;
		}

		let text = message.text();

		// wp-bootstrap-block exceptions for WordPress 5.2
		if (
			text.startsWith(
				'Warning: Unsafe lifecycle methods were found within a strict-mode tree'
			)
		) {
			return;
		}
		if ( text.startsWith( 'Warning: %s is deprecated in StrictMode.' ) ) {
			return;
		}
		// wp-bootstrap-block exceptions for WordPress 5.3
		if ( text.includes( 'is deprecated. Please use wp.blockEditor.' ) ) {
			return;
		}
		if (
			text.includes(
				"is deprecated. Please use `wp.data.select( 'core/block-editor' )"
			)
		) {
			return;
		}
		if (
			text.includes(
				"is deprecated. Please use `wp.data.dispatch( 'core/block-editor' )"
			)
		) {
			return;
		}
		if (
			text.includes(
				'RichText formattingControls prop is deprecated. Please use allowedFormats instead.'
			)
		) {
			return;
		}
		if (
			text.includes(
				'[DOM] Found 2 elements with non-unique id #_wpnonce: (More info: https://goo.gl/9p2vKq)'
			)
		) {
			return;
		}

		// wp-bootstrap-block exceptions for WordPress 5.4
		if (
			text.includes(
				'wp.components.IconButton is deprecated. Please use wp.components.Button instead.'
			)
		) {
			return;
		}

		// An exception is made for _blanket_ deprecation warnings: Those
		// which log regardless of whether a deprecated feature is in use.
		if ( text.includes( 'This is a global warning' ) ) {
			return;
		}

		// A chrome advisory warning about SameSite cookies is informational
		// about future changes, tracked separately for improvement in core.
		//
		// See: https://core.trac.wordpress.org/ticket/37000
		// See: https://www.chromestatus.com/feature/5088147346030592
		// See: https://www.chromestatus.com/feature/5633521622188032
		if (
			text.includes( 'A cookie associated with a cross-site resource' )
		) {
			return;
		}

		// Viewing posts on the front end can result in this error, which
		// has nothing to do with Gutenberg.
		if ( text.includes( 'net::ERR_UNKNOWN_URL_SCHEME' ) ) {
			return;
		}

		// Network errors are ignored only if we are intentionally testing
		// offline mode.
		if (
			text.includes( 'net::ERR_INTERNET_DISCONNECTED' ) &&
			isOfflineMode()
		) {
			return;
		}

		// A bug present in WordPress 5.2 will produce console warnings when
		// loading the Dashicons font. These can be safely ignored, as they do
		// not otherwise regress on application behavior. This logic should be
		// removed once the associated ticket has been closed.
		//
		// See: https://core.trac.wordpress.org/ticket/47183
		if (
			text.startsWith( 'Failed to decode downloaded font:' ) ||
			text.startsWith( 'OTS parsing error:' )
		) {
			return;
		}

		const logFunction = OBSERVED_CONSOLE_MESSAGE_TYPES[ type ];

		// As of Puppeteer 1.6.1, `message.text()` wrongly returns an object of
		// type JSHandle for error logging, instead of the expected string.
		//
		// See: https://github.com/GoogleChrome/puppeteer/issues/3397
		//
		// The recommendation there to asynchronously resolve the error value
		// upon a console event may be prone to a race condition with the test
		// completion, leaving a possibility of an error not being surfaced
		// correctly. Instead, the logic here synchronously inspects the
		// internal object shape of the JSHandle to find the error text. If it
		// cannot be found, the default text value is used instead.
		text = get(
			message.args(),
			[ 0, '_remoteObject', 'description' ],
			text
		);

		// Disable reason: We intentionally bubble up the console message
		// which, unless the test explicitly anticipates the logging via
		// @wordpress/jest-console matchers, will cause the intended test
		// failure.

		// eslint-disable-next-line no-console
		console[ logFunction ]( text );
	} );
}

// Before every test suite run, delete all content created by the test. This ensures
// other posts/comments/etc. aren't dirtying tests and tests don't depend on
// each other's side-effects.
beforeAll( async () => {
	enablePageDialogAccept();
	observeConsoleLogging();
	await setupBrowser();
} );

afterEach( async () => {
	await setupBrowser();
} );
