/*
 * (c) Copyright 2017 EntIT Software LLC, a Micro Focus company, L.P.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Apache License v2.0 which accompany this distribution.
 *
 * The Apache License is available 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 io.cloudslang.content.amazon.actions.cloudformation;

import com.amazonaws.services.cloudformation.AmazonCloudFormation;
import com.amazonaws.services.cloudformation.model.CreateStackRequest;
import com.amazonaws.services.cloudformation.model.CreateStackResult;
import com.amazonaws.services.cloudformation.model.Parameter;
import com.hp.oo.sdk.content.annotations.Action;
import com.hp.oo.sdk.content.annotations.Output;
import com.hp.oo.sdk.content.annotations.Param;
import com.hp.oo.sdk.content.annotations.Response;
import com.hp.oo.sdk.content.plugin.ActionMetadata.MatchType;
import com.hp.oo.sdk.content.plugin.ActionMetadata.ResponseType;
import io.cloudslang.content.amazon.entities.constants.Outputs;
import io.cloudslang.content.amazon.factory.CloudFormationClientBuilder;
import io.cloudslang.content.amazon.utils.DefaultValues;
import io.cloudslang.content.utils.OutputUtilities;

import java.util.ArrayList;
import java.util.Map;

import static io.cloudslang.content.amazon.entities.constants.Inputs.CloudFormationInputs.*;
import static io.cloudslang.content.amazon.entities.constants.Inputs.CommonInputs.*;
import static org.apache.commons.lang3.StringUtils.defaultIfEmpty;

public class CreateStackAction {
    /**
     * Creates AWS Cloud Formation Stack in sync mode using AWS Java SDK
     *
     * @param identity          Access key associated with your Amazon AWS or IAM account.
     *                          Example: "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY"
     * @param credential        Secret access key ID associated with your Amazon AWS or IAM account.
     * @param proxyHost         Optional - proxy server used to connect to Amazon API. If empty no proxy will be used.
     *                          Default: ""
     * @param proxyPort         Optional - proxy server port. You must either specify values for both proxyHost and
     *                          proxyPort inputs or leave them both empty.
     *                          Default: ""
     * @param proxyUsername     Optional - proxy server user name.
     *                          Default: ""
     * @param proxyPassword     Optional - proxy server password associated with the proxyUsername input value.
     *                          Default: ""
     * @param region            AWS region name
     *                          Example: "eu-central-1"
     * @param stackName         Stack name to create
     *                          Example: "MyStack"
     * @param templateBody      AWS Cloud Formation template body in JSON or YAML format
     * @return                  A map with strings as keys and strings as values that contains: outcome of the action, returnCode of the
     *                          operation, or failure message and the exception if there is one
     */
    @Action(name = "Create AWS Cloud Formation Stack",
            outputs = {
                    @Output(Outputs.RETURN_CODE),
                    @Output(Outputs.RETURN_RESULT),
                    @Output(Outputs.EXCEPTION)
            },
            responses = {
                    @Response(text = Outputs.SUCCESS, field = Outputs.RETURN_CODE, value = Outputs.SUCCESS_RETURN_CODE,
                            matchType = MatchType.COMPARE_EQUAL, responseType = ResponseType.RESOLVED),
                    @Response(text = Outputs.FAILURE, field = Outputs.RETURN_CODE, value = Outputs.FAILURE_RETURN_CODE,
                            matchType = MatchType.COMPARE_EQUAL, responseType = ResponseType.ERROR)
            }
    )
    public Map<String, String> execute(
            @Param(value = IDENTITY,   required = true)  String identity,
            @Param(value = CREDENTIAL, required = true, encrypted = true)  String credential,
            @Param(value = REGION,     required = true)  String region,
            @Param(value = PROXY_HOST)                   String proxyHost,
            @Param(value = PROXY_PORT)                   String proxyPort,
            @Param(value = PROXY_USERNAME)               String proxyUsername,
            @Param(value = PROXY_PASSWORD)               String proxyPassword,
            @Param(value = CONNECT_TIMEOUT)              String connectTimeoutMs,
            @Param(value = EXECUTION_TIMEOUT)            String execTimeoutMs,
            @Param(value = STACK_NAME, required = true)  String stackName,
            @Param(value = TEMPLATE_BODY, required = true) String templateBody,
            @Param(value = PARAMETERS)                   String parameters) {

        proxyPort = defaultIfEmpty(proxyPort, DefaultValues.PROXY_PORT);
        connectTimeoutMs = defaultIfEmpty(connectTimeoutMs, DefaultValues.CONNECT_TIMEOUT);
        execTimeoutMs = defaultIfEmpty(execTimeoutMs, DefaultValues.EXEC_TIMEOUT);

        try {
            AmazonCloudFormation stackBuilder = CloudFormationClientBuilder.getCloudFormationClient(identity, credential, proxyHost, proxyPort, proxyUsername, proxyPassword, connectTimeoutMs, execTimeoutMs, region);

            CreateStackRequest createRequest = new CreateStackRequest()
                    .withStackName(stackName)
                    .withTemplateBody(templateBody)
                    .withParameters(toArrayOfParameters(parameters));

            CreateStackResult result = stackBuilder.createStack(createRequest);

            return OutputUtilities.getSuccessResultsMap(result.toString());
        } catch (Exception e) {
            return OutputUtilities.getFailureResultsMap(e);
        }
    }

    private ArrayList<Parameter> toArrayOfParameters(String parameters) {
        ArrayList<Parameter> parametersList = new ArrayList<Parameter>();

        for (String line : parameters.split("\n")) {
            if (!isValid(line)) {
                continue;
            }
            Parameter parameter = new Parameter();
            parameter.setParameterKey(getKey(line));
            parameter.setParameterValue(getValue(line));
            parametersList.add(parameter);
        }

        return parametersList;
    }

    private boolean isValid(String paramLine) {
        String keyValueArr[] = paramLine.split("=", 2);
        if ((keyValueArr == null) ||                 //can't split
                (keyValueArr.length < 2) ||          //can't split
                (keyValueArr[0].trim().isEmpty()) || //empty key
                (keyValueArr[1].trim().isEmpty()) ){ //empty value
            return false;
        }
        return true;
    }

    private String getKey(String paramLine) {
        return paramLine.split("=", 2)[0];
    }

    private String getValue(String paramLine) {
        return paramLine.split("=", 2)[1];
    }
}

@@ -4814,31 +4814,35 @@
 PASSWORD
-)              
+, encrypted = true)
  String 

fix encrypted proxy password