/*
    *    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.where;
  
  import java.util.Objects;
  import java.util.Optional;
  
  import org.jspecify.annotations.Nullable;
  import org.mybatis.dynamic.sql.common.AbstractBooleanExpressionModel;
  import org.mybatis.dynamic.sql.configuration.StatementConfiguration;
  import org.mybatis.dynamic.sql.render.RenderingContext;
  import org.mybatis.dynamic.sql.render.RenderingStrategy;
  import org.mybatis.dynamic.sql.render.TableAliasCalculator;
  import org.mybatis.dynamic.sql.util.FragmentAndParameters;
  import org.mybatis.dynamic.sql.where.render.DefaultWhereClauseProvider;
  import org.mybatis.dynamic.sql.where.render.WhereClauseProvider;
  import org.mybatis.dynamic.sql.where.render.WhereRenderer;
  
  public class WhereModel extends AbstractBooleanExpressionModel {
      private final StatementConfiguration statementConfiguration;
  
      private WhereModel(Builder builder) {
          super(builder);
          statementConfiguration = Objects.requireNonNull(builder.statementConfiguration);
      }
  
      /**
       * Renders a where clause without table aliases.
       *
       * @param renderingStrategy
       *            rendering strategy
       *
       * @return rendered where clause
       */
      public Optional<WhereClauseProvider> render(RenderingStrategy renderingStrategy) {
          RenderingContext renderingContext = RenderingContext.withRenderingStrategy(renderingStrategy)
                  .withStatementConfiguration(statementConfiguration).build();
  
          return render(renderingContext);
      }
  
      public Optional<WhereClauseProvider> render(RenderingStrategy renderingStrategy,
                                                  TableAliasCalculator tableAliasCalculator) {
          RenderingContext renderingContext = RenderingContext
                  .withRenderingStrategy(renderingStrategy)
                  .withTableAliasCalculator(tableAliasCalculator)
                  .withStatementConfiguration(statementConfiguration)
                  .build();
  
          return render(renderingContext);
      }
  
      public Optional<WhereClauseProvider> render(RenderingStrategy renderingStrategy, String parameterName) {
          RenderingContext renderingContext = RenderingContext
                  .withRenderingStrategy(renderingStrategy)
                  .withParameterName(parameterName)
                  .withStatementConfiguration(statementConfiguration)
                  .build();
  
          return render(renderingContext);
      }
  
      public Optional<WhereClauseProvider> render(RenderingStrategy renderingStrategy,
              TableAliasCalculator tableAliasCalculator, String parameterName) {
          RenderingContext renderingContext = RenderingContext
                  .withRenderingStrategy(renderingStrategy)
                  .withTableAliasCalculator(tableAliasCalculator)
                  .withParameterName(parameterName)
                  .withStatementConfiguration(statementConfiguration)
                  .build();
  
          return render(renderingContext);
      }
  
      private Optional<WhereClauseProvider> render(RenderingContext renderingContext) {
          return WhereRenderer.withWhereModel(this)
                  .withRenderingContext(renderingContext)
                  .build()
                  .render()
                  .map(this::toWhereClauseProvider);
      }
  
      private WhereClauseProvider toWhereClauseProvider(FragmentAndParameters fragmentAndParameters) {
          return DefaultWhereClauseProvider.withWhereClause(fragmentAndParameters.fragment())
                  .withParameters(fragmentAndParameters.parameters())
                  .build();
     }
 
     public static class Builder extends AbstractBuilder<Builder> {
         private @Nullable StatementConfiguration statementConfiguration;
 
         public Builder withStatementConfiguration(StatementConfiguration statementConfiguration) {
             this.statementConfiguration = statementConfiguration;
             return this;
         }
 
         public WhereModel build() {
             return new WhereModel(this);
         }
 
         @Override
         protected Builder getThis() {
             return this;
         }
     }
 }