/**
 * Copyright (c) 2023, WSO2 LLC. (https://www.wso2.com).
 *
 * WSO2 LLC. licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.wso2.identity.integration.test.restclients;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import io.restassured.http.ContentType;
import org.apache.commons.codec.binary.Base64;
import org.apache.http.Header;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPatch;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicHeader;
import org.testng.Assert;
import org.wso2.carbon.automation.engine.context.beans.Tenant;
import org.wso2.identity.integration.common.utils.ISIntegrationTest;
import org.wso2.identity.integration.test.rest.api.server.identity.governance.v1.dto.ConnectorsPatchReq;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class IdentityGovernanceRestClient extends RestBaseClient {

    private static final String API_SERVER_BASE_PATH = "/api/server/v1";
    private static final String IDENTITY_GOVERNANCE_BASE_PATH = "/identity-governance";
    private static final String CONNECTORS_BASE_PATH = "/connectors";
    private final String identityGovernanceApiBasePath;
    private final CloseableHttpClient client;
    private final String username;
    private final String password;

    public IdentityGovernanceRestClient(String backendURL, Tenant tenantInfo) {

        client = HttpClients.createDefault();

        this.username = tenantInfo.getContextUser().getUserName();
        this.password = tenantInfo.getContextUser().getPassword();

        String tenantDomain = tenantInfo.getContextUser().getUserDomain();

        identityGovernanceApiBasePath = backendURL + ISIntegrationTest.getTenantedRelativePath(
                API_SERVER_BASE_PATH + IDENTITY_GOVERNANCE_BASE_PATH, tenantDomain);
    }

    /**
     * Update connector properties.
     *
     * @param categoryId     Connector category id.
     * @param connectorId    Connector id.
     * @param connectorPatch Connector patch request object.
     * @throws IOException If an error occurred while updating the governance connectors.
     */
    public void updateConnectors(String categoryId, String connectorId, ConnectorsPatchReq connectorPatch)
            throws IOException {

        String jsonRequest = toJSONString(connectorPatch);
        String endPointUrl = identityGovernanceApiBasePath + PATH_SEPARATOR + categoryId +
                CONNECTORS_BASE_PATH + PATH_SEPARATOR + connectorId;

        try (CloseableHttpResponse response = getResponseOfHttpPatch(endPointUrl, jsonRequest, getHeaders())) {
            Assert.assertEquals(response.getStatusLine().getStatusCode(), HttpServletResponse.SC_OK,
                    "Connector update failed");
        }
    }

    private Header[] getHeaders() {

        Header[] headerList = new Header[2];
        headerList[0] = new BasicHeader(AUTHORIZATION_ATTRIBUTE, BASIC_AUTHORIZATION_ATTRIBUTE +
                Base64.encodeBase64String((username + ":" + password).getBytes()).trim());
        headerList[1] = new BasicHeader(CONTENT_TYPE_ATTRIBUTE, String.valueOf(ContentType.JSON));

        return headerList;
    }

    /**
     * Close the HTTP client.
     *
     * @throws IOException If an error occurred while closing the Http Client.
     */
    public void closeHttpClient() throws IOException {

        client.close();
    }
}
