package at.gv.egovernment.moa.id.protocols.stork2;

import at.gv.egovernment.moa.id.commons.db.dao.config.AttributeProviderPlugin;
import at.gv.egovernment.moa.logging.Logger;

import java.util.ArrayList;
import java.util.List;

/**
 * A factory for creating AttributeProvider objects.
 */
public class AttributeProviderFactory {

    /**
     * Gets the available plugins.
     *
     * @return the available plugins
     */
    public static List<String> getAvailablePlugins() {
        List<String> result = new ArrayList<String>();
        result.add("StorkAttributeRequestProvider");
        result.add("EHvdAttributeProvider");
        result.add("SignedDocAttributeRequestProvider");
        result.add("MandateAttributeRequestProvider");

        return result;
    }

    /**
     * Creates an AttributeProvider object for the given shortname. Returns
     * {@code null} if there is no such provider available.
     *
     * @param shortname the simpleName for the providers class
     * @return the attribute provider
     */
    public static AttributeProvider create(String shortname, String url, String attributes) {
        if (shortname.equals("StorkAttributeRequestProvider")) {
            return new StorkAttributeRequestProvider(url, attributes);
        } else if (shortname.equals("EHvdAttributeProvider")) {
            return new EHvdAttributeProviderPlugin(url, attributes);
        } else if (shortname.equals("SignedDocAttributeRequestProvider")) {
            return new SignedDocAttributeRequestProvider(url, attributes);
        } else if (shortname.equals("MandateAttributeRequestProvider")) {
            try {
                return new MandateAttributeRequestProvider(url, attributes);
            } catch (Exception ex) {
                ex.printStackTrace();
                return null;
            }
        } else {
            return null;
        }
    }

    /**
     * Gets fresh instances of the configured plugins.
     *
     * @param configuredAPs the configured a ps
     * @return the configured plugins
     */
    public static List<AttributeProvider> getConfiguredPlugins(
            List<AttributeProviderPlugin> configuredAPs) {

        List<AttributeProvider> result = new ArrayList<AttributeProvider>();
        for (AttributeProviderPlugin current : configuredAPs) {

            result.add(create(current.getName(), current.getUrl(), current.getAttributes()));
            Logger.debug("Adding configured attribute provider: " + current.getClass().getName() + current.getName() + " at " + current.getUrl());
        }

        return result;
    }
}