import 'module-alias/register';
import createApp from './app';
import BundleRendererServices from './bundle-renderer/BundleRendererServices';
import ServiceRunnerOptions from './ServiceRunnerOptions';
import LRUCache from 'lru-cache';
import openApiJson from '@/../openapi.json';
import CoercingQueryValidator from './route-handler/termbox/CoercingQueryValidator';
import OpenAPIRequestCoercer from 'openapi-request-coercer';
import OpenAPIRequestValidator from 'openapi-request-validator';
import buildOpenApiSpec from './buildOpenApiSpec';
import assertAndGetConfig from './assertAndGetConfig';
import axiosFactory from './axios/axiosFactory';
import getMwUserAgentString from './axios/getMwUserAgentString';
import packageInfo from '@/../package.json';
import { Document } from '@/types/server/ServiceCheckerEnabledOpenApiV3';

export default function ( options: ServiceRunnerOptions ): void {
	const logger = options.logger;
	const config = assertAndGetConfig(
		options.config,
		logger,
	);

	const termboxSpecParameters = openApiJson.paths[ '/termbox' ].get.parameters;
	const termboxQueryValidator = new CoercingQueryValidator(
		new OpenAPIRequestCoercer( {
			parameters: termboxSpecParameters,
		} ),
		new OpenAPIRequestValidator( {
			parameters: termboxSpecParameters,
		} ),
	);

	let openApiSpec;
	try {
		openApiSpec = buildOpenApiSpec( config.HEALTHCHECK_QUERY, termboxQueryValidator );
	} catch ( error ) {
		logger.log( 'fatal/service', `HEALTHCHECK_QUERY malformed: ${JSON.stringify( error.info )}. Exiting.` );
		process.exit( 1 );
	}

	openApiSpec = openApiSpec as Document;

	const services = new BundleRendererServices(
		axiosFactory(
			config.WIKIBASE_REPO,
			config.WIKIBASE_REPO_HOSTNAME_ALIAS,
			config.MEDIAWIKI_REQUEST_TIMEOUT,
			getMwUserAgentString( packageInfo ),
		),
		logger,
		options.metrics,
		new LRUCache( {
			max: 1000,
			maxAge: config.MESSAGES_CACHE_MAX_AGE,
		} ),
		new LRUCache( {
			max: 1000,
			maxAge: config.LANGUAGES_CACHE_MAX_AGE,
		} ),
		termboxQueryValidator,
		openApiSpec,
	);

	createApp( services )
		.listen( config.SSR_PORT, () => {
			logger.log( 'info/service', 'server is now running...' );
		} );

	process.on( 'SIGINT', () => {
		logger.log( 'info/service', 'Process received SIGINT' );
		process.exit( 0 );
	} );
}