// Copyright (c) Six Labors.
// Licensed under the Six Labors Split License.

#if DEBUG
using System.Text;
#endif

namespace SixLabors.Fonts.Tables.Cff {
  /// <summary>
  /// Represents a single key-value entry parsed from a CFF DICT structure.
  /// The key is a <see cref="CFFOperator"/> and the value is an array of <see cref="CffOperand"/>.
  /// </summary>
  internal class CffDataDicEntry
  {
      /// <summary>
      /// Initializes a new instance of the <see cref="CffDataDicEntry"/> class.
      /// </summary>
      /// <param name="operator">The DICT operator.</param>
      /// <param name="operands">The operand values for this operator.</param>
      public CffDataDicEntry(CFFOperator @operator, CffOperand[] operands)
      {
          this.Operator = @operator;
          this.Operands = operands;
      }

      /// <summary>
      /// Gets the DICT operator that identifies this entry.
      /// </summary>
      public CFFOperator Operator { get; }

      /// <summary>
      /// Gets the operand values associated with this operator.
      /// </summary>
      public CffOperand[] Operands { get; }

#if DEBUG
      /// <inheritdoc/>
      public override string ToString()
      {
          StringBuilder builder = new();
          int j = this.Operands.Length;
          for (int i = 0; i < j; ++i)
          {
              if (i > 0)
              {
                  builder.Append(' ');
              }

              builder.Append(this.Operands[i].ToString());
          }

          builder.Append(' ')
                 .Append(this.Operator?.ToString() ?? string.Empty);
          return builder.ToString();
      }
#endif
  }
}