package de.aikiit.bilanzanalyser.reader;
   
   import de.aikiit.bilanzanalyser.entity.BilanzRow;
   
   import java.util.List;
   
   /**
    * Result of parsing a spreadsheet file with
    *
   * @param errorCount error row count.
   * @param rowCount   row count equals the number seen, not parsed correctly.
   * @param rows       extracted and parsed rows. May be less than rowCount.
   */
  public record BilanzRowParserResult(int errorCount, int rowCount, List<BilanzRow> rows) {
  
      public BilanzRowParserResult {
          rows = rows == null ? List.of() : List.copyOf(rows);
      }
  
      public static BilanzRowParserResult empty() {
          return new BilanzRowParserResult(0, 0, List.of());
      }
  
      /**
       * Check whether this result is empty.
       *
       * @return {@code true} if no rows and no errors are found yet.
       */
      public boolean isEmpty() {
          return rows == null || rows.isEmpty() || errorCount == 0;
      }
  
      /**
       * Increment errorCount.
       *
       * @return copy with incremented value.
       */
      public BilanzRowParserResult withError() {
          return new BilanzRowParserResult(errorCount + 1, rowCount, rows);
      }
  
      /**
       * Increment rowCount.
       *
       * @return copy with incremented value.
       */
      public BilanzRowParserResult withRow() {
          return new BilanzRowParserResult(errorCount, rowCount + 1, rows);
      }
  
      /**
       * Allows adding a list of rows.
       *
       * @param newRows a list of rows to replace any existing rows.
       * @return copy with added row.
       */
      public BilanzRowParserResult withRows(List<BilanzRow> newRows) {
          return new BilanzRowParserResult(errorCount, rowCount, newRows);
      }
  
      /**
       * Allows adding a single row incrementally.
       *
       * @param row a single row.
       * @return copy with added row.
       */
      public BilanzRowParserResult addRow(BilanzRow row) {
          var newList = new java.util.ArrayList<>(rows);
          newList.add(row);
          return new BilanzRowParserResult(errorCount, rowCount, newList);
      }
  }