/**
 * Copyright © 2016-2022 The Thingsboard Authors
 *
 * 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.thingsboard.server.dao.sql.component;

import org.springframework.stereotype.Repository;
import org.thingsboard.server.dao.model.sql.ComponentDescriptorEntity;
import org.thingsboard.server.dao.util.PsqlDao;

@PsqlDao
@Repository
public class PsqlComponentDescriptorInsertRepository extends AbstractComponentDescriptorInsertRepository {

    private static final String ID = "id = :id";
    private static final String CLAZZ_CLAZZ = "clazz = :clazz";

    private static final String P_KEY_CONFLICT_STATEMENT = "(id)";
    private static final String UNQ_KEY_CONFLICT_STATEMENT = "(clazz)";

    private static final String ON_P_KEY_CONFLICT_UPDATE_STATEMENT = getUpdateStatement(CLAZZ_CLAZZ);
    private static final String ON_UNQ_KEY_CONFLICT_UPDATE_STATEMENT = getUpdateStatement(ID);

    private static final String INSERT_OR_UPDATE_ON_P_KEY_CONFLICT = getInsertOrUpdateStatement(P_KEY_CONFLICT_STATEMENT, ON_P_KEY_CONFLICT_UPDATE_STATEMENT);
    private static final String INSERT_OR_UPDATE_ON_UNQ_KEY_CONFLICT = getInsertOrUpdateStatement(UNQ_KEY_CONFLICT_STATEMENT, ON_UNQ_KEY_CONFLICT_UPDATE_STATEMENT);

    @Override
    public ComponentDescriptorEntity saveOrUpdate(ComponentDescriptorEntity entity) {
        return saveAndGet(entity, INSERT_OR_UPDATE_ON_P_KEY_CONFLICT, INSERT_OR_UPDATE_ON_UNQ_KEY_CONFLICT);
    }

    @Override
    protected ComponentDescriptorEntity doProcessSaveOrUpdate(ComponentDescriptorEntity entity, String query) {
        return (ComponentDescriptorEntity) getQuery(entity, query).getSingleResult();
    }

    private static String getInsertOrUpdateStatement(String conflictKeyStatement, String updateKeyStatement) {
        return "INSERT INTO component_descriptor (id, created_time, actions, clazz, configuration_descriptor, name, scope, search_text, type) VALUES (:id, :created_time, :actions, :clazz, :configuration_descriptor, :name, :scope, :search_text, :type) ON CONFLICT " + conflictKeyStatement + " DO UPDATE SET " + updateKeyStatement + " returning *";
    }

    private static String getUpdateStatement(String id) {
        return "actions = :actions, " + id + ",created_time = :created_time, configuration_descriptor = :configuration_descriptor, name = :name, scope = :scope, search_text = :search_text, type = :type";
    }
}
