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/*
 * ============LICENSE_START=======================================================
 * PNF-REGISTRATION-HANDLER
 * ================================================================================
 * Copyright (C) 2023 Deutsche Telekom Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.onap.dcaegen2.services.prh.controllers;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.onap.dcaegen2.services.prh.tasks.commit.ScheduledTasksRunnerWithCommit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Profile;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;

/**
 *  * @author <a href="mailto:PRANIT.KAPDULE@t-systems.com">Pranit Kapdule</a> on
 *   *        24/08/23
 *    */
@RestController
@Api(value = "ScheduleController")
@Profile("autoCommitDisabled")
public class ScheduleControllerForAutoCommitDisabled {

    private static final Logger LOGGER = LoggerFactory.getLogger(ScheduleControllerForAutoCommitDisabled.class);

    private ScheduledTasksRunnerWithCommit scheduledTasksRunnerWithCommit;
    
    @Autowired(required = false)
    public ScheduleControllerForAutoCommitDisabled(ScheduledTasksRunnerWithCommit scheduledTasksRunnerWithCommit) {
        this.scheduledTasksRunnerWithCommit = scheduledTasksRunnerWithCommit;
    }

    @RequestMapping(value = "start", method = RequestMethod.GET)
    @ApiOperation(value = "Start scheduling worker request")
    public Mono<ResponseEntity<String>> startTasks() {
        LOGGER.trace("Receiving start scheduling worker request with Comit SchedulerController");
        return Mono.fromSupplier(scheduledTasksRunnerWithCommit::tryToStartTaskWithCommit)
                .map(this::createStartTaskResponse);
    }
    
    @RequestMapping(value = "stopPrh", method = RequestMethod.GET)
    @ApiOperation(value = "Receiving stop scheduling worker request")
    public Mono<ResponseEntity<String>> stopTask() {
        LOGGER.trace("Receiving stop scheduling worker request");
        return Mono.defer(() -> {
            scheduledTasksRunnerWithCommit.cancelTasks();
            return Mono.just(new ResponseEntity<>("PRH Service has been stopped!", HttpStatus.OK));
        });
    }

    private ResponseEntity<String> createStartTaskResponse(boolean wasScheduled) {
        if (wasScheduled) {
            return new ResponseEntity<>("PRH Service has been started!", HttpStatus.CREATED);
        } else {
            return new ResponseEntity<>("PRH Service is already running!", HttpStatus.NOT_ACCEPTABLE);
        }
    }
}