package org.onap.sdc.dcae.catalog.asdc;

import java.net.URI;

import java.util.Collections;

import org.json.JSONObject;
import org.onap.sdc.common.onaplog.OnapLoggerDebug;
import org.onap.sdc.common.onaplog.Enums.LogLevel;
import org.onap.sdc.dcae.catalog.commons.Action;
import org.onap.sdc.dcae.catalog.commons.Future;
import org.onap.sdc.dcae.catalog.commons.Http;

import org.springframework.util.Base64Utils;

import org.springframework.http.MediaType;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpEntity;
import org.springframework.stereotype.Component;
import org.springframework.context.annotation.Scope;
import org.springframework.boot.context.properties.ConfigurationProperties;

@Component("blueprinter")
@Scope("singleton")
@ConfigurationProperties(prefix="blueprinter")
public class Blueprinter {
    private URI	serviceUri;
    private OnapLoggerDebug debugLogger = OnapLoggerDebug.getInstance();

    public void setUri(URI theUri) {
        this.serviceUri = theUri;
    }

    public BlueprintAction generateBlueprint() {
        return new BlueprintAction();
    }

    public class BlueprintAction implements Action<String> {

        private JSONObject	body = new JSONObject();

        protected BlueprintAction() {
        }

        public BlueprintAction withModelInfo(JSONObject theModelInfo) {
            body.append("models", theModelInfo);
            return this;
        }

        public BlueprintAction withTemplateData(byte[] theData) {
            body.put("template", Base64Utils.encodeToString(theData));
            return this;
        }

        public Future<String> execute() {

            debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Blueprinter::execute() | PAYLOAD to TOSCA_LAB={}", body.toString());
            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.APPLICATION_JSON);
            headers.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
            return Http.exchange(serviceUri.toString(), HttpMethod.POST, new HttpEntity<>(body.toString(), headers), String.class);
        }
    }
}