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/*
 * Copyright © 2021 Orange
 *
 * 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.
 */

package org.onap.ccsdk.cds.blueprintsprocessor.services.execution.scripts

import com.fasterxml.jackson.databind.node.ObjectNode
import org.onap.ccsdk.cds.blueprintsprocessor.core.BluePrintPropertiesService
import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
import org.onap.ccsdk.cds.blueprintsprocessor.functions.k8s.K8sConnectionPluginConfiguration
import org.onap.ccsdk.cds.blueprintsprocessor.functions.k8s.instance.K8sPluginInstanceApi
import org.onap.ccsdk.cds.blueprintsprocessor.functions.k8s.instance.K8sRbInstanceStatus
import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractScriptComponentFunction
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintException
import org.slf4j.LoggerFactory

open class SimpleStatusCheck : AbstractScriptComponentFunction() {

    private val log = LoggerFactory.getLogger(SimpleStatusCheck::class.java)!!

    override fun getName(): String {
        return "SimpleStatusCheck"
    }

    override suspend fun processNB(executionRequest: ExecutionServiceInput) {
        log.info("SIMPLE STATUS CHECK - START")

        val configValueSetup: ObjectNode = getDynamicProperties("config-deploy-setup") as ObjectNode

        val bluePrintPropertiesService: BluePrintPropertiesService =
            this.functionDependencyInstanceAsType("bluePrintPropertiesService")

        val k8sConfiguration = K8sConnectionPluginConfiguration(bluePrintPropertiesService)

        val instanceApi = K8sPluginInstanceApi(k8sConfiguration)

        var checkCount: Int = 30 // in the future to be read in from the input
        while (checkCount > 0) {
            var continueCheck = false
            configValueSetup.fields().forEach { it ->
                val vfModuleName = it.key
                val instanceName = it.value.get("k8s-instance-id").asText()

                val instanceStatus: K8sRbInstanceStatus? = instanceApi.getInstanceStatus(instanceName)
                log.debug("Get status for $vfModuleName ($instanceName)")
                if (!instanceStatus?.ready!!) {
                    continueCheck = true
                    log.info("VfModule $vfModuleName ($instanceName) is not ready. Please wait...")
                } else {
                    log.info("VfModule $vfModuleName ($instanceName) is ready.")
                }
            }
            if (continueCheck) {
                checkCount--
                if (checkCount == 0)
                    throw BluePrintException("Instance State verification failed")
                Thread.sleep(10000L)
            } else
                checkCount = 0
        }

        log.info("SIMPLE STATUS CHECK - END")
    }

    override suspend fun recoverNB(runtimeException: RuntimeException, executionRequest: ExecutionServiceInput) {
        log.info("Executing Recovery")
        this.addError("${runtimeException.message}")
    }
}