package eu.dnetlib.bioschemas.api.scraper;

import eu.dnetlib.bioschemas.api.ServiceScrapeDriver;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;

@Component
public class ScrapingExecutor {

	private final ScrapingExecution lastScrapingExecution = new ScrapingExecution();

	public ScrapingExecution getLastScrapingExecution() {
		return lastScrapingExecution;
	}

	public ScrapingExecution startScraping(final String datasourceKey, final String sitemapUrl, final String outputDataPattern, final String remoteAddr) {
		synchronized (lastScrapingExecution) {
			if (lastScrapingExecution.getStatus() != ScrapingStatus.RUNNING) {
				lastScrapingExecution.startNew("Scraping for " + datasourceKey + " " + sitemapUrl + " - request from " + remoteAddr);
				new Thread(() -> {
					try {
						String sitemapUrlKey = "loc";
						String outputFilename = datasourceKey.concat(outputDataPattern);
						ServiceScrapeDriver service = new ServiceScrapeDriver(sitemapUrl, sitemapUrlKey, null, outputFilename);
						service.start();
						lastScrapingExecution.complete();
					} catch (final Throwable e) {
						lastScrapingExecution.fail(e);
					}
				}).start();
			} else {
				final long now = System.currentTimeMillis();
				return new ScrapingExecution(null, now, now, ScrapingStatus.NOT_LAUNCHED, "An other scraping is running");
			}

		}
		return lastScrapingExecution;
	}
}