package at.gv.egiz.moazs.preprocess;

import at.gv.zustellung.app2mzs.xsd.ConfigType;
import at.gv.zustellung.app2mzs.xsd.ServerType;
import org.springframework.lang.Nullable;
import org.springframework.stereotype.Component;

import javax.validation.constraints.Null;
import java.util.Map;

import static at.gv.zustellung.app2mzs.xsd.ConfigType.configTypeBuilder;
import static at.gv.zustellung.app2mzs.xsd.ServerType.serverTypeBuilder;

@Component
public class ConfigUtil {

    private static final String TNVZ_REQUEST_KEY = "perform-query-person-request";
    private static final String MSG_URL_KEY = "msg.url";

    /**
     * Builds a ConvertType Object out of a Map on the Basis of it's Keys and Values.
     *
     * @param Map with keys and values.
     * @return ConvertType Object
     */
    public ConfigType convert(Map<String, String> values) {
        var server = serverTypeBuilder()
                .withZUSEUrlID(values.get(MSG_URL_KEY))
                .build();

        Boolean performQueryPersonRequest = values.get(TNVZ_REQUEST_KEY) == null
                ? null : Boolean.getBoolean(values.get(TNVZ_REQUEST_KEY));

        return ConfigType.configTypeBuilder()
                .withPerformQueryPersonRequest(performQueryPersonRequest)
                .withServer(server)
                .build();
    }

    /**
     * Combines Properties of Two ConfigType Objects; {@code primary} overrides {@code fallback}.
     *
     * @param primary
     * @param fallback
     * @return Combined ConfigType
     */
    public ConfigType merge(@Nullable ConfigType primary, ConfigType fallback) {

        var builder = configTypeBuilder(fallback);

        if(primary != null) {

            if(primary.getServer() != null) {
                builder.withServer(merge(primary.getServer(), fallback.getServer()));
            }

            if(primary.isPerformQueryPersonRequest() != null) {
                builder.withPerformQueryPersonRequest(primary.isPerformQueryPersonRequest());
            }

        }

        return builder.build();

    }

    private ServerType merge(ServerType primary, ServerType fallback) {

        if (fallback == null) {
            return primary;
        }

        var builder = serverTypeBuilder(fallback);

        if (primary.getX509()      != null) builder.withX509     (primary.getX509()     );
        if (primary.getZUSEUrlID() != null) builder.withZUSEUrlID(primary.getZUSEUrlID());

        return builder.build();
    }

    /**
     * Checks if all mandatory fields are set.
     *
     * @param profile
     * @return
     */
    public boolean isComplete(@Nullable ConfigType profile) {
        //TODO: add check fo x509 certificate
        return profile != null
                && profile.isPerformQueryPersonRequest() != null
                && profile.getServer() != null
                && profile.getServer().getZUSEUrlID() != null;
    }

}