package org.keycloak.protocol.cas.mappers;

import org.keycloak.models.ProtocolMapperModel;
import org.keycloak.models.UserModel;
import org.keycloak.models.UserSessionModel;
import org.keycloak.protocol.cas.CASLoginProtocol;
import org.keycloak.protocol.oidc.mappers.OIDCAttributeMapperHelper;
import org.keycloak.provider.ProviderConfigProperty;

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

import static org.keycloak.protocol.oidc.mappers.OIDCAttributeMapperHelper.TOKEN_CLAIM_NAME;

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

    static {
        OIDCAttributeMapperHelper.addTokenClaimNameConfig(configProperties);
    }

    public static final String PROVIDER_ID = "cas-full-name-mapper";


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

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

    @Override
    public String getDisplayType() {
        return "User's full name";
    }

    @Override
    public String getHelpText() {
        return "Maps the user's first and last name to the OpenID Connect 'name' claim. Format is <first> + ' ' + <last>";
    }

    @Override
    public void setAttribute(Map<String, Object> attributes, ProtocolMapperModel mappingModel, UserSessionModel userSession) {
        UserModel user = userSession.getUser();
        String protocolClaim = mappingModel.getConfig().get(TOKEN_CLAIM_NAME);
        if (protocolClaim == null) {
            return;
        }
        String first = user.getFirstName() == null ? "" : user.getFirstName() + " ";
        String last = user.getLastName() == null ? "" : user.getLastName();
        attributes.put(protocolClaim, first + last);
    }

    public static ProtocolMapperModel create(String name, String tokenClaimName,
                                             boolean consentRequired, String consentText) {
        ProtocolMapperModel mapper = new ProtocolMapperModel();
        mapper.setName(name);
        mapper.setProtocolMapper(PROVIDER_ID);
        mapper.setProtocol(CASLoginProtocol.LOGIN_PROTOCOL);
        mapper.setConsentRequired(consentRequired);
        mapper.setConsentText(consentText);
        Map<String, String> config = new HashMap<String, String>();
        config.put(TOKEN_CLAIM_NAME, tokenClaimName);
        mapper.setConfig(config);
        return mapper;
    }
}