package org.keycloak.protocol.cas.mappers;

import org.keycloak.models.ProtocolMapperModel;
import org.keycloak.models.UserModel;
import org.keycloak.models.UserSessionModel;
import org.keycloak.models.utils.KeycloakModelUtils;
import org.keycloak.protocol.ProtocolMapperUtils;
import org.keycloak.protocol.oidc.mappers.OIDCAttributeMapperHelper;
import org.keycloak.provider.ProviderConfigProperty;

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

public class UserAttributeMapper extends AbstractCASProtocolMapper {
    private static final List<ProviderConfigProperty> configProperties = new ArrayList<ProviderConfigProperty>();

    static {
        ProviderConfigProperty property;
        property = new ProviderConfigProperty();
        property.setName(ProtocolMapperUtils.USER_ATTRIBUTE);
        property.setLabel(ProtocolMapperUtils.USER_MODEL_ATTRIBUTE_LABEL);
        property.setHelpText(ProtocolMapperUtils.USER_MODEL_ATTRIBUTE_HELP_TEXT);
        property.setType(ProviderConfigProperty.STRING_TYPE);
        configProperties.add(property);
        OIDCAttributeMapperHelper.addTokenClaimNameConfig(configProperties);
        OIDCAttributeMapperHelper.addJsonTypeConfig(configProperties);

        property = new ProviderConfigProperty();
        property.setName(ProtocolMapperUtils.MULTIVALUED);
        property.setLabel(ProtocolMapperUtils.MULTIVALUED_LABEL);
        property.setHelpText(ProtocolMapperUtils.MULTIVALUED_HELP_TEXT);
        property.setType(ProviderConfigProperty.BOOLEAN_TYPE);
        configProperties.add(property);

    }

    public static final String PROVIDER_ID = "cas-usermodel-attribute-mapper";


    @Override
    public List<ProviderConfigProperty> getConfigProperties() {
        return configProperties;
    }

    @Override
    public String getId() {
        return PROVIDER_ID;
    }

    @Override
    public String getDisplayType() {
        return "User Attribute";
    }

    @Override
    public String getHelpText() {
        return "Map a custom user attribute to a token claim.";
    }

    @Override
    public void setAttribute(Map<String, Object> attributes, ProtocolMapperModel mappingModel, UserSessionModel userSession) {
        UserModel user = userSession.getUser();
        String attributeName = mappingModel.getConfig().get(ProtocolMapperUtils.USER_ATTRIBUTE);
        List<String> attributeValue = KeycloakModelUtils.resolveAttribute(user, attributeName);
        setMappedAttribute(attributes, mappingModel, attributeValue);
    }

    public static ProtocolMapperModel create(String name, String userAttribute,
                                             String tokenClaimName, String claimType,
                                             boolean consentRequired, String consentText, boolean multivalued) {
        ProtocolMapperModel mapper = CASAttributeMapperHelper.createClaimMapper(name, tokenClaimName,
                claimType, consentRequired, consentText, PROVIDER_ID);
        mapper.getConfig().put(ProtocolMapperUtils.USER_ATTRIBUTE, userAttribute);
        if (multivalued) {
            mapper.getConfig().put(ProtocolMapperUtils.MULTIVALUED, "true");
        }
        return mapper;
    }
}