/*
 * Copyright © 2017-2018 AT&T Intellectual Property.
 * Modifications Copyright © 2019 Bell Canada.
 * Modifications Copyright © 2019 IBM.
 *
 * 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.selfservice.api

import com.google.protobuf.util.JsonFormat
import io.grpc.stub.StreamObserver
import io.grpc.testing.GrpcServerRule
import io.micrometer.core.instrument.MeterRegistry
import org.junit.Assert
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
import org.onap.ccsdk.cds.controllerblueprints.common.api.ActionIdentifiers
import org.onap.ccsdk.cds.controllerblueprints.common.api.CommonHeader
import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
import org.onap.ccsdk.cds.controllerblueprints.processing.api.BluePrintProcessingServiceGrpc
import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput
import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput
import org.slf4j.LoggerFactory
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.test.mock.mockito.MockBean
import org.springframework.test.annotation.DirtiesContext
import org.springframework.test.context.ContextConfiguration
import org.springframework.test.context.TestPropertySource
import org.springframework.test.context.junit4.SpringRunner
import kotlin.test.BeforeTest

@RunWith(SpringRunner::class)
@DirtiesContext
@ContextConfiguration(
    classes = [
        SelfServiceApiTestConfiguration::class, TestDatabaseConfiguration::class,
        ErrorCatalogTestConfiguration::class
    ]
)
@TestPropertySource(locations = ["classpath:application-test.properties"])
class BluePrintProcessingGRPCHandlerTest {

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

    @MockBean
    lateinit var meterRegistry: MeterRegistry

    @get:Rule
    val grpcServerRule = GrpcServerRule().directExecutor()

    @Autowired
    lateinit var bluePrintProcessingGRPCHandler: BluePrintProcessingGRPCHandler

    lateinit var requestObs: StreamObserver<ExecutionServiceInput>

    @BeforeTest
    fun init() {
        grpcServerRule.serviceRegistry.addService(bluePrintProcessingGRPCHandler)

        val blockingStub = BluePrintProcessingServiceGrpc.newStub(grpcServerRule.channel)

        requestObs = blockingStub.process(object : StreamObserver<ExecutionServiceOutput> {
            override fun onNext(executionServiceOuput: ExecutionServiceOutput) {
                log.debug("onNext {}", executionServiceOuput)
                if ("1234" == executionServiceOuput.commonHeader.requestId) {
                    Assert.assertEquals(
                        "Failed to process request, \'actionIdentifiers.mode\' not specified. Valid value are: \'sync\' or \'async\'.",
                        executionServiceOuput.status.errorMessage
                    )
                }
            }

            override fun onError(error: Throwable) {
                log.debug("Fail to process message", error)
                Assert.assertEquals("INTERNAL: Could not find blueprint : from database", error.message)
            }

            override fun onCompleted() {
                log.info("Done")
            }
        })
    }

    @Test
    fun testSelfServiceGRPCHandler() {
        val commonHeader = CommonHeader.newBuilder()
            .setTimestamp("2012-04-23T18:25:43.511Z")
            .setOriginatorId("System")
            .setRequestId("1234")
            .setSubRequestId("1234-56").build()

        val jsonContent = JacksonUtils.getClassPathFileContent("execution-input/sample-payload.json")
        val payloadBuilder = ExecutionServiceInput.newBuilder().payloadBuilder
        JsonFormat.parser().merge(jsonContent, payloadBuilder)

        val input = ExecutionServiceInput.newBuilder()
            .setCommonHeader(commonHeader)
            .setPayload(payloadBuilder.build())
            .build()

        requestObs.onNext(input)

        val commonHeader2 = CommonHeader.newBuilder()
            .setTimestamp("2012-04-23T18:25:43.511Z")
            .setOriginatorId("System")
            .setRequestId("2345")
            .setSubRequestId("1234-56").build()

        val actionIdentifier = ActionIdentifiers.newBuilder().setMode("sync").build()

        val input2 = ExecutionServiceInput.newBuilder()
            .setCommonHeader(commonHeader2)
            .setActionIdentifiers(actionIdentifier)
            .setPayload(payloadBuilder.build())
            .build()

        requestObs.onNext(input2)

        requestObs.onCompleted()
    }
}