package controller;

import javafx.application.Platform;
import javafx.scene.control.Alert;
import javafx.scene.control.ButtonType;
import javafx.scene.control.Label;
import model.GameState;
import model.Player;
import model.Tile;
import view.TileView;

import java.io.*;

public class UpdateThread extends Thread
{
	BufferedReader reader;
	PrintWriter writer;
	GameState gameState;
	Tile[] board;
	TileView[] boardView;
	Player humanPlayer;
	Label scoreRed, scoreBlue, turnLabel;

	public UpdateThread(Process program, GameState gameState, Tile[] board, TileView[] boardView, Player humanPlayer, Label scoreRed, Label scoreBlue, Label turnLabel)
	{
		this.reader = new BufferedReader(new InputStreamReader(program.getInputStream()));
		this.writer = new PrintWriter(new OutputStreamWriter(program.getOutputStream()), true);
		this.gameState = gameState;
		this.board = board;
		this.boardView = boardView;
		this.humanPlayer = humanPlayer;
		this.scoreRed = scoreRed;
		this.scoreBlue = scoreBlue;
		this.turnLabel = turnLabel;
	}


	public void run()
	{
		boolean gameRunning = true;
		while (gameRunning)
		{
			try
			{
				String line = reader.readLine();
				System.out.println(line);
				if (line == null)
				{
					gameRunning = false;
				} else if (line.startsWith(Player.Red + " won") || line.startsWith(Player.Blue + " won") || line.startsWith("draw"))
				{
					//System.out.println("======= END OF GAME=======");
					Platform.runLater(() -> {
						Player computer = humanPlayer.equals(Player.Red) ? Player.Blue : Player.Red;
						String message = "";
						if (line.startsWith(humanPlayer.toString())) //Human won
							message = "You won!!! I can't believe it!";
						else if (line.startsWith(computer.toString()))
							message = "You just lost the penguin game.";
						else
							message = "That's a draw. Not bad!";
						Alert alert = new Alert(Alert.AlertType.INFORMATION, message, ButtonType.OK);
						alert.showAndWait();
					});
					gameRunning = false;
				} else if (line.contains("{")) //Line contains JSON
				{
					//UPDATE MODEL
					gameState.update(line.substring(line.indexOf("{"), line.lastIndexOf("}") + 1)); //Extract JSON string
					for (int i = 0; i < board.length; i++)
					{
						board[i].setNbFish(gameState.getNbFish(i));
						board[i].setPenguinPresence(Tile.PenguinPresence.NO_PENGUIN);
					}
					for (int i = 0; i < 4; i++)
					{
						board[gameState.getPenguinPos(Player.Red, i)].setPenguinPresence(Tile.PenguinPresence.RED_PENGUIN);
						board[gameState.getPenguinPos(Player.Blue, i)].setPenguinPresence(Tile.PenguinPresence.BLUE_PENGUIN);
					}

					//UPDATE VIEW
					for (int i = 0; i < boardView.length; i++)
						boardView[i].update();
					Platform.runLater(() -> {
						scoreRed.setText(Integer.toString(gameState.getScore(Player.Red)));
						scoreBlue.setText(Integer.toString(gameState.getScore(Player.Blue)));
						turnLabel.setText(gameState.getCurrent_player()+ "'s turn");
					});

					if (gameState.getCurrent_player() == humanPlayer)
					{
						if (!gameState.getCanPlay(humanPlayer))
						{
							Platform.runLater(() ->
							{
								Alert alert = new Alert(Alert.AlertType.INFORMATION, "You can't play any move!", ButtonType.OK);
								alert.showAndWait();
								writer.println("0"); //This pass the turn
							});
						}
					}
				}
			} catch (IOException e)
			{
				gameRunning = false;
				Platform.runLater(() ->
				{
					Alert alert = new Alert(Alert.AlertType.ERROR, "Error during reading from penguin program!", ButtonType.FINISH);
					alert.showAndWait();
					e.printStackTrace();
					Platform.exit();
				});
			} catch (Throwable e)
			{
				gameRunning = false;
				Platform.runLater(() -> {
					Alert alert = new Alert(Alert.AlertType.ERROR, "Unhandled exception in update thread: " + e.getMessage(), ButtonType.FINISH);
					alert.showAndWait();
					e.printStackTrace();
					Platform.exit();
				});
			}
		}
	}
}