/*
    *    Copyright 2006-2023 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.generator.config;
  
  import static org.mybatis.generator.internal.util.StringUtility.stringHasValue;
  import static org.mybatis.generator.internal.util.messages.Messages.getString;
  
  import java.util.List;
  
  import org.mybatis.generator.internal.db.DatabaseDialects;
  
  /**
   * This class specifies that a key is auto-generated, either as an identity
   * column (post insert), or as some other query like a sequences (pre insert).
   *
   * @author Jeff Butler
   */
  public class GeneratedKey {
  
      private final String column;
  
      private final String runtimeSqlStatement;
  
      private final boolean isIdentity;
  
      private final String type;
  
      public GeneratedKey(String column, String configuredSqlStatement,
              boolean isIdentity, String type) {
          super();
          this.column = column;
          this.type = type;
          this.isIdentity = isIdentity;
  
          DatabaseDialects dialect = DatabaseDialects
                  .getDatabaseDialect(configuredSqlStatement);
          if (dialect == null) {
              this.runtimeSqlStatement = configuredSqlStatement;
          } else {
              this.runtimeSqlStatement = dialect.getIdentityRetrievalStatement();
          }
      }
  
      public String getColumn() {
          return column;
      }
  
      public boolean isIdentity() {
          return isIdentity;
      }
  
      public String getRuntimeSqlStatement() {
          return runtimeSqlStatement;
      }
  
      public String getMyBatis3Order() {
          return isIdentity ? "AFTER" : "BEFORE"; //$NON-NLS-1$ //$NON-NLS-2$
      }
  
      public void validate(List<String> errors, String tableName) {
          if (!stringHasValue(runtimeSqlStatement)) {
              errors.add(getString("ValidationError.7", //$NON-NLS-1$
                      tableName));
          }
  
          if (stringHasValue(type)
                  && !"pre".equals(type) //$NON-NLS-1$
                  && !"post".equals(type)) { //$NON-NLS-1$ //$NON-NLS-2$
              errors.add(getString("ValidationError.15", tableName)); //$NON-NLS-1$
          }
  
          if ("pre".equals(type) && isIdentity) { //$NON-NLS-1$
              errors.add(getString("ValidationError.23", //$NON-NLS-1$
                      tableName));
          }
  
          if ("post".equals(type) && !isIdentity) { //$NON-NLS-1$
              errors.add(getString("ValidationError.24", //$NON-NLS-1$
                      tableName));
          }
      }
  
      public boolean isJdbcStandard() {
          return "JDBC".equals(runtimeSqlStatement); //$NON-NLS-1$
      }
  }