/*-
 * ============LICENSE_START=======================================================
 * ONAP : APPC
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Copyright (C) 2017 Amdocs
 * =============================================================================
 * Licensed 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.
 * 
 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 * ============LICENSE_END=========================================================
 */

package org.onap.appc.adapter.chef.chefapi;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

import org.apache.http.HttpResponse;
import org.apache.http.Header;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.util.EntityUtils;
import org.onap.appc.adapter.chef.chefclient.Utils;

import org.apache.http.HttpEntity;
import org.apache.http.impl.client.HttpClients;

public class ApiMethod {
    private HttpClient client = null;
    protected HttpRequestBase method = null;
    protected HttpResponse response = null;
    protected String reqBody = "";
    protected String userId = "";
    protected String pemPath = "";
    protected String chefPath = "";
    protected String organizations = "";
    protected int resCode=0;
    protected String responseBody="";
    private String methodName = "GET";
    public String test = "";
    private int returnCode;
    final String KEY_STORE_PATH = "/etc/chef/trusted_certs/mykeystore.jks";
    final String KEY_STORE_PASSWORD = "adminadmin";
    static
   {
    System.setProperty("javax.net.ssl.trustStore", "/opt/onap/appc/chef/chefServerSSL.jks");
    System.setProperty("javax.net.ssl.trustStorePassword", "adminadmin");
        }

    public ApiMethod(String methodName) {
        client=HttpClients.createDefault();
        this.methodName = methodName;
    }

   

    public ApiMethod execute() {
        String hashedPath = Utils.sha1AndBase64("/organizations/"+organizations+chefPath);
        String hashedBody = Utils.sha1AndBase64(reqBody);

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
        String timeStamp = sdf.format(new Date());
        timeStamp = timeStamp.replace(" ", "T");
        timeStamp = timeStamp + "Z";

        StringBuilder sb = new StringBuilder();
        sb.append("Method:").append(methodName).append("\n");
        sb.append("Hashed Path:").append(hashedPath).append("\n");
        sb.append("X-Ops-Content-Hash:").append(hashedBody).append("\n");
        sb.append("X-Ops-Timestamp:").append(timeStamp).append("\n");
        sb.append("X-Ops-UserId:").append(userId);
        test = test + "sb " + sb + "\n";

        String auth_String = Utils.signWithRSA(sb.toString(), pemPath);
        String[] auth_headers = Utils.splitAs60(auth_String);

        method.addHeader("Content-type", "application/json");
        method.addHeader("X-Ops-Timestamp", timeStamp);
        method.addHeader("X-Ops-Userid", userId);
        method.addHeader("X-Chef-Version", "12.4.1");
        method.addHeader("Accept", "application/json");
        method.addHeader("X-Ops-Content-Hash", hashedBody);
        method.addHeader("X-Ops-Sign", "version=1.0");

        for (int i = 0; i < auth_headers.length; i++) {
            method.addHeader("X-Ops-Authorization-" + (i + 1), auth_headers[i]);
        }
        try{
            response = client.execute(method);
            resCode = response.getStatusLine().getStatusCode();
            HttpEntity entity1 = response.getEntity();
            responseBody = EntityUtils.toString(entity1);}
        catch(Exception ex){
            resCode=500;
            responseBody=ex.getMessage();
        }
        return this;
    }

    public void setHeaders(Header[] headers) {
        for (Header header : headers) {
            this.method.addHeader(header);
        }
    }

    public String getResponseBodyAsString() {
        return responseBody;
    }

    public int getReturnCode() {
        return resCode;
    }

    public String getReqBody() {
        return reqBody;
    }

    public void setReqBody(String body) {
        this.reqBody = body;
    }

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public String getPemPath() {
        return pemPath;
    }

    public void setPemPath(String pemPath) {
        this.pemPath = pemPath;
    }

    public String getChefPath() {
        return chefPath;
    }

    public void setChefPath(String chefPath) {
        this.chefPath = chefPath;
    }

    public String getOrganizations() {
        return organizations;
    }

    public void setOrganizations(String organizations) {
        this.organizations = organizations;
    }
}