/*
    *    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.select.render;
  
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Objects;
  
  import org.jspecify.annotations.Nullable;
  
  public class DefaultSelectStatementProvider implements SelectStatementProvider {
      private final String selectStatement;
      private final Map<String, Object> parameters;
  
      private DefaultSelectStatementProvider(Builder builder) {
          selectStatement = Objects.requireNonNull(builder.selectStatement);
          parameters = Collections.unmodifiableMap(Objects.requireNonNull(builder.parameters));
      }
  
      @Override
      public Map<String, Object> getParameters() {
          return parameters;
      }
  
      @Override
      public String getSelectStatement() {
          return selectStatement;
      }
  
      public static Builder withSelectStatement(String selectStatement) {
          return new Builder().withSelectStatement(selectStatement);
      }
  
      public static class Builder {
          private @Nullable String selectStatement;
          private final Map<String, Object> parameters = new HashMap<>();
  
          public Builder withSelectStatement(String selectStatement) {
              this.selectStatement = selectStatement;
              return this;
          }
  
          public Builder withParameters(Map<String, Object> parameters) {
              this.parameters.putAll(parameters);
              return this;
          }
  
          public DefaultSelectStatementProvider build() {
              return new DefaultSelectStatementProvider(this);
          }
      }
  }