package eu.eudat.logic.proxy.config.configloaders;

import eu.eudat.logic.proxy.config.ExternalUrls;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Profile;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Service;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Unmarshaller;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.nio.file.Paths;

/**
 * Created by ikalyvas on 2/9/2018.
 */
@Service("configLoader")
@Profile({ "production", "staging" })
public class ProductionConfigLoader implements ConfigLoader {

    private ExternalUrls externalUrls;

    @Autowired
    private Environment environment;

    private void setExternalUrls() {
        String fileUrl = this.environment.getProperty("configuration.externalUrls");
        System.out.println("Loaded also config file: " + fileUrl);
        String current = null;
        InputStream is = null;
        try {
            current = new java.io.File(".").getCanonicalPath();

            JAXBContext jaxbContext = JAXBContext.newInstance(ExternalUrls.class);
            Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
            is = new URL(Paths.get(fileUrl).toUri().toURL().toString()).openStream();
            externalUrls = (ExternalUrls) jaxbUnmarshaller.unmarshal(is);

        } catch (Exception ex) {
            ex.printStackTrace();
            System.out.println("Cannot find in folder" + current);
        } finally {
            try {
                if (is != null) is.close();
            } catch (IOException e) {
                System.out.println("Warning: Could not close a stream after reading from file: " + fileUrl);
            }
        }

    }


    public ExternalUrls getExternalUrls() {
        this.setExternalUrls();
        return externalUrls;
    }

}