package de.aikiit.game.kaiser;
   
   import org.assertj.core.util.VisibleForTesting;
   
   /**
    * This class encapsulates the actual game flow.
    * A player
    * <ul>
    *     <li>is shown current statistics and</li>
   *     <li>can start to act</li>
   *     <li>until the maximum number of rounds is reached and the game ends.</li>
   * </ul>
   */
  public class KaiserGame {
  
      /**
       * The player can play at most this number of rounds.
       */
      public static final int MAX_ROUNDS = 10;
  
      private final KaiserEngine engine;
      private final KaiserEnginePrinter printer;
      /**
       * The current round of the game.
       */
      private int round = 0;
  
      /**
       * Initializes a game with default parameters.
       */
      public KaiserGame() {
          this(new KaiserEngine());
      }
  
      /**
       * Allows setting an explicit engine for testing purposes.
       * @param engine initialize with the given engine.
       */
      @VisibleForTesting
      KaiserGame(KaiserEngine engine) {
          this.engine = engine;
          this.printer = new KaiserEnginePrinter(this.engine);
      }
  
      private void incrementRoundCounter() {
          round++;
      }
  
      /**
       * Start the game and allow player interactions until the maximum number of rounds is reached.
       */
      public void run() {
          intro();
          status();
          while (round < MAX_ROUNDS) {
              incrementRoundCounter();
              engine.startNewRound();
              status();
              actions();
              engine.finishRoundAfterActions();
          }
  
          finish();
          byeByeBanner();
      }
  
      /**
       * Shows information about the game flow and welcomes the player.
       */
      public void intro() {
          banner();
          System.out.println("Versuchen Sie die antike Stadt " + KaiserEnginePrinter.ANSI_YELLOW + ">SUMERIA<" + KaiserEnginePrinter.ANSI_RESET + " zu regieren!");
          System.out.println("Ihre Regierungszeit beträgt " + MAX_ROUNDS + " Jahre.");
          System.out.println("Nach jeweils einem Jahr erhalten Sie einen Bericht über die Entwicklung in der Stadt.");
          System.out.println("Dann werden wir weitersehen .......");
          System.out.println();
      }
  
      /**
       * Shows the game's banner.
       */
      public void banner() {
          // generated with the help of https://manytools.org/hacker-tools/ascii-banner/
          // font: banner
          System.out.println(KaiserEnginePrinter.ANSI_RED);
          System.out.println("""
                  #    #                              \s
                  #   #    ##   #  ####  ###### ##### \s
                  #  #    #  #  # #      #      #    #\s
                  ###    #    # #  ####  #####  #    #\s
                  #  #   ###### #      # #      ##### \s
                  #   #  #    # # #    # #      #   # \s
                  #    # #    # #  ####  ###### #    #\s
                                                      \s
                  """);
          System.out.println(KaiserEnginePrinter.ANSI_RESET);
      }
  
      /**
      * Shows console banner after the game is over.
      */
     public void byeByeBanner() {
         // generated with the help of https://manytools.org/hacker-tools/ascii-banner/
         // font: banner
         System.out.println(KaiserEnginePrinter.ANSI_RED);
         System.out.println("""
                 ######                  ######                  #    #                              \s
                 #     # #   # ######    #     # #   # ######    #   #    ##   #  ####  ###### ##### \s
                 #     #  # #  #         #     #  # #  #         #  #    #  #  # #      #      #    #\s
                 ######    #   #####     ######    #   #####     ###    #    # #  ####  #####  #    #\s
                 #     #   #   #         #     #   #   #         #  #   ###### #      # #      ##### \s
                 #     #   #   #         #     #   #   #         #   #  #    # # #    # #      #   # \s
                 ######    #   ######    ######    #   ######    #    # #    # #  ####  ###### #    #\s
                                                                                                     \n
                 """);
         System.out.println(KaiserEnginePrinter.ANSI_RESET);
     }
 
     /**
      * Shows the underlying status of the current round the player is in.
      */
     public void status() {
         System.out.println(printer.getStatus(round));
         System.out.println(printer.getYearResult(round));
     }
 
     /**
      * Performs user interactions.
      * The player can either
      * <ul>
      *     <li>buy or sell land</li>
      *     <li>feed the population</li>
      *     <li>perform agricultural operations per round.</li>
      * </ul>
      */
     public void actions() {
         System.out.println();
         System.out.println(KaiserEnginePrinter.ANSI_PURPLE + "#+#+#+#+ Was möchten Sie tun?" + KaiserEnginePrinter.ANSI_RESET);
 
         // only buy or sell is allowed
         if (!KaiserActions.buy(this.engine)) {
             KaiserActions.sell(this.engine);
         }
 
         KaiserActions.feed(this.engine);
         KaiserActions.cultivate(this.engine);
 
         System.out.println();
     }
 
     /**
      * Shows results after the game is over.
      */
     public void finish() {
         System.out.println(printer.getResults());
         System.out.println(printer.evaluateRegency());
     }
 }