/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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 com.epam.datalab.backendapi.core.response.handlers;

import com.epam.datalab.backendapi.core.commands.DockerAction;
import com.epam.datalab.dto.UserInstanceStatus;
import com.epam.datalab.dto.base.edge.EdgeInfo;
import com.epam.datalab.dto.base.keyload.UploadFileResult;
import com.epam.datalab.exceptions.DatalabException;
import com.epam.datalab.rest.client.RESTService;
import com.fasterxml.jackson.annotation.JacksonInject;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.JsonNode;
import lombok.extern.slf4j.Slf4j;

import java.io.IOException;

@Slf4j
public class EdgeCallbackHandler<E extends EdgeInfo, T extends UploadFileResult<E>> extends ResourceCallbackHandler<T> {
    @JsonProperty
    private final String callbackURI;
    @JsonProperty
    private final Class<E> responseType;

    @JsonCreator
    public EdgeCallbackHandler(
            @JacksonInject RESTService selfService, @JsonProperty("action") DockerAction action,
            @JsonProperty("uuid") String uuid, @JsonProperty("user") String user,
            @JsonProperty("callbackURI") String callbackURI,
            @JsonProperty("responseType") Class<E> responseType,
            @JsonProperty("resultType") Class<T> enclosingType) {

        super(selfService, user, uuid, action, enclosingType);
        this.callbackURI = callbackURI;
        this.responseType = responseType;
    }

    @Override
    protected String getCallbackURI() {
        return callbackURI;
    }

    protected T parseOutResponse(JsonNode resultNode, T baseStatus) {
        if (resultNode != null && (getAction() == DockerAction.CREATE || getAction() == DockerAction.START)
                && UserInstanceStatus.of(baseStatus.getStatus()) != UserInstanceStatus.FAILED) {
            try {
                E credential = mapper.readValue(resultNode.toString(), responseType);
                credential.setEdgeStatus(UserInstanceStatus.RUNNING.toString());
                baseStatus.withEdgeInfo(credential);
            } catch (IOException e) {
                throw new DatalabException("Cannot parse the EDGE info in JSON: " + e.getLocalizedMessage(), e);
            }
        }

        return baseStatus;
    }

    @Override
    public void handleError(String errorMessage) {
        super.handleError("Could not upload the user key: " + errorMessage);
    }
}