package com.fluidcoding;
// Brian Sonnie
import java.util.Random;
import java.util.Scanner;

public class Main {
    private static final String ROCK = "rock";
    private static final String PAPER = "paper";
    private static final String SCISSORS = "scissors";
    private static final String DONE = "done";

    private static final String WIN_NONE = "0";
    private static final String WIN_PLAYER = "1";
    private static final String WIN_CPU = "2";

    private static String firstName;
    public static void main(String[] args) {
        String playerMove;
        String cpuMove;
        String winner;
        int playerWins = 0;
        int cpuWins = 0;
        int ties = 0;
        int gamesPlayed = 0;

        firstName = getPlayerName();
        welcomeMessage(firstName);
        Scanner in = new Scanner(System.in);
        playerMove = getPlayerMove();
        while(!playerMove.equals(DONE)){
            gamesPlayed++;
            cpuMove = getCpuMove();
            System.out.println("Computer chooses: " + cpuMove);
            winner = getWinner(cpuMove, playerMove);
            switch(winner){
                case WIN_PLAYER:
                    System.out.println("You Win!!! :)");
                    playerWins++;
                    break;
                case WIN_CPU:
                    System.out.println("You Lose!!! :(");
                    cpuWins++;
                    break;
                default:
                    System.out.println("Tie...");
                    ties++;
                    break;
            }
            playerMove = getPlayerMove();
        }
        showScores(playerWins, cpuWins, gamesPlayed, ties);
    }

    public static void welcomeMessage(String firstName){
        System.out.println("Hello " + firstName + " welcome to the Rock, Paper, Scissors game.");
    }

    public static void showScores(int playerWins, int cpuWins, int gamesPlayed, int ties){
        System.out.println("Game Over!!!\n"
                + "Games Played: " + gamesPlayed
                + "\n" + firstName + ": " + playerWins
                + "\nComputer: " + cpuWins
                + "\nTies: " + ties
                );
        if(playerWins==cpuWins)
            System.out.println("TIE...");
        else if(playerWins>cpuWins)
            System.out.println("YOU WIN!!!");
        else
            System.out.println("YOU LOSE!!!");
    }

    private static String getWinner(String cpuMove, String playerMove){

        if(cpuMove.equals(playerMove))
            return WIN_NONE;

        if((cpuMove.equals(ROCK) && playerMove.equals(PAPER))
                || (cpuMove.equals(SCISSORS) && playerMove.equals(PAPER))
                || (cpuMove.equals(PAPER) && playerMove.equals(ROCK)))
            return WIN_CPU;

        return WIN_PLAYER;

    }

    public static String getPlayerMove(){
        String move = "";
        Scanner in = new Scanner(System.in);
        while(move.isEmpty() || !(move.equals(ROCK)
                                || move.equals(PAPER)
                                || move.equals(SCISSORS)
                                || move.equals(DONE))){
            System.out.println("What's your move? ("+ROCK+"|"+PAPER+"|"+SCISSORS+") -- ("+DONE+") to quit");
            move = in.nextLine().toLowerCase();
        }
        return move;
    }

    public static String getCpuMove(){
        Random rnd = new Random();
        int m = rnd.nextInt(3);
        switch(m){
            case 0:     return PAPER;
            case 1:     return ROCK;
            default:    return SCISSORS;
        }
    }

    public static String getPlayerName(){
        System.out.println("Hello what is your name?");
        Scanner in = new Scanner(System.in);
        String name = "";
        while (name.equals(""))
            name = in.nextLine();
        return name;
    }
}