/*
    * Copyright (c) 2021 Kaiserpfalz EDV-Service, Roland T. Lichti.
    *
    * This program is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
    *
    * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  package de.kaiserpfalzedv.rpg.core.dice.mat;
  
  import com.fasterxml.jackson.annotation.JsonInclude;
  import lombok.*;
  import lombok.extern.jackson.Jacksonized;
  import org.eclipse.microprofile.openapi.annotations.media.Schema;
  
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Optional;
  import java.util.StringJoiner;
  
  
  /**
   * RollTotal -- The result of a numeric die result.
   *
   * This is the result of a numeric die roll.
   */
  @Jacksonized
  @Builder(toBuilder = true)
  @AllArgsConstructor
  @NoArgsConstructor
  @Getter
  @ToString
  @EqualsAndHashCode
  @JsonInclude(JsonInclude.Include.NON_ABSENT)
  @Schema(name = "RollTotal", description = "A generic result of a die roll.")
  public class RollTotal implements Serializable {
      @Builder.Default
      private final List<ExpressionTotal> expressions = new ArrayList<>();
  
      @Builder.Default
      private final Optional<String> comment = Optional.empty();
  
      public String getDescription() {
          StringJoiner result = new StringJoiner(" - ");
  
          for (ExpressionTotal r : getExpressions()) {
              result.add(r.getDescription());
          }
  
          return result.toString();
      }
  
      /**
       * Checks if there are any results from this roll.
       *
       * @return FALSE if there is at least one result, TRUE if there are no results
       */
      public boolean isEmpty() {
          return getExpressions().size() == 0;
      }
  }