/*
 *  ============LICENSE_START=======================================================
 *  Copyright (C) 2021 Wipro Limited.
 *  Modifications Copyright (C) 2023 Nordix Foundation
 *  ================================================================================
 *  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.
 *
 *  SPDX-License-Identifier: Apache-2.0
 *  ============LICENSE_END=========================================================
 */

package org.onap.cps.tbdmt.rest;

import jakarta.validation.Valid;
import java.util.Collection;
import org.onap.cps.tbdmt.exception.TemplateNotFoundException;
import org.onap.cps.tbdmt.model.Template;
import org.onap.cps.tbdmt.model.TemplateKey;
import org.onap.cps.tbdmt.model.TemplateRequest;
import org.onap.cps.tbdmt.service.TemplateBusinessLogic;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TemplateController {

    @Autowired
    private TemplateBusinessLogic templateBusinessLogic;

    @PostMapping(path = "/templates")
    public ResponseEntity<Template> createTemplate(@Valid @RequestBody final TemplateRequest templateRequest) {
        return new ResponseEntity<>(templateBusinessLogic.createTemplate(templateRequest),
            HttpStatus.CREATED);
    }

    /**
     * Get All Templates.
     *
     * @return templates
     */
    @GetMapping(path = "/templates")
    public ResponseEntity<Collection<Template>> getAllTemplates() {
        final Collection<Template> templates = templateBusinessLogic.getAllTemplates();
        if (templates.isEmpty()) {
            throw new TemplateNotFoundException("Template repository is empty");
        }
        return new ResponseEntity<>(templates, HttpStatus.OK);
    }

    /**
     * Get Template by templateId.
     *
     * @param templateId Id to find the template
     * @return template
     */
    @GetMapping(path = "/templates/{templateId}")
    public ResponseEntity<Template> getTemplate(@PathVariable final String templateId) {
        return new ResponseEntity<>(
            templateBusinessLogic.getTemplate(new TemplateKey(templateId)),
            HttpStatus.OK);

    }

    /**
     * Delete Template by templateId.
     *
     * @param templateId Id to find the template
     */
    @DeleteMapping(path = "/templates/{templateId}")
    public void deleteTemplate(@PathVariable final String templateId) {
        templateBusinessLogic.deleteTemplate(new TemplateKey(templateId));
    }
}