/*
    *    Copyright 2016-2025 the original author or 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
    *
    *       https://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.mybatis.dynamic.sql.delete;
  
  import java.util.Objects;
  import java.util.Optional;
  
  import org.jspecify.annotations.Nullable;
  import org.mybatis.dynamic.sql.SqlTable;
  import org.mybatis.dynamic.sql.common.CommonBuilder;
  import org.mybatis.dynamic.sql.common.OrderByModel;
  import org.mybatis.dynamic.sql.configuration.StatementConfiguration;
  import org.mybatis.dynamic.sql.delete.render.DeleteRenderer;
  import org.mybatis.dynamic.sql.delete.render.DeleteStatementProvider;
  import org.mybatis.dynamic.sql.render.RenderingStrategy;
  import org.mybatis.dynamic.sql.where.EmbeddedWhereModel;
  
  public class DeleteModel {
      private final SqlTable table;
      private final @Nullable String tableAlias;
      private final @Nullable EmbeddedWhereModel whereModel;
      private final @Nullable Long limit;
      private final @Nullable OrderByModel orderByModel;
      private final StatementConfiguration statementConfiguration;
  
      private DeleteModel(Builder builder) {
          table = Objects.requireNonNull(builder.table());
          whereModel = builder.whereModel();
          tableAlias = builder.tableAlias();
          limit = builder.limit();
          orderByModel = builder.orderByModel();
          statementConfiguration = Objects.requireNonNull(builder.statementConfiguration());
      }
  
      public SqlTable table() {
          return table;
      }
  
      public Optional<String> tableAlias() {
          return Optional.ofNullable(tableAlias);
      }
  
      public Optional<EmbeddedWhereModel> whereModel() {
          return Optional.ofNullable(whereModel);
      }
  
      public Optional<Long> limit() {
          return Optional.ofNullable(limit);
      }
  
      public Optional<OrderByModel> orderByModel() {
          return Optional.ofNullable(orderByModel);
      }
  
      public StatementConfiguration statementConfiguration() {
          return statementConfiguration;
      }
  
      public DeleteStatementProvider render(RenderingStrategy renderingStrategy) {
          return DeleteRenderer.withDeleteModel(this)
                  .withRenderingStrategy(renderingStrategy)
                  .build()
                  .render();
      }
  
      public static Builder withTable(SqlTable table) {
          return new Builder().withTable(table);
      }
  
      public static class Builder extends CommonBuilder<Builder> {
          @Override
          protected Builder getThis() {
              return this;
          }
  
          public DeleteModel build() {
              return new DeleteModel(this);
          }
      }
  }