// cppHearts, Copyright 2001 Michael W. Godfrey, email: migod@uwaterloo.ca
// See copyright.txt for details.
#include "SmartPlayer.h"
#include "RandomPlayer.h"
#include "Deck.h"
#include "Card.h"
#include <string>
#include <vector>

enum PlayerKind {Random, Smart};
// These are the player names used for the demo.  
const string PlayerNames [] = {"Abe", "Bart", "Crusty", "D'oh"};
// Change these to suit yerself, he said rankly.
// const PlayerKind PlayerSkill [] = {Random, Smart, Random, Random};
const PlayerKind PlayerSkill [] = {Smart, Smart, Smart, Smart};
const int numPlayers = sizeof(PlayerNames) / sizeof(PlayerNames[0]);

// This is the main program for the hearts game.
int main (int argc, char* argv[]) {
    // This says, use this seed to generate random numbers.
    // Changing the seed (in Globals) will give you a different sequence of
    // random numbers, and therfore a different game.
    srand(Globals::RandomSeed);

    // Initialize the players.
    Player *player[numPlayers];
    for (int i=0; i<numPlayers; i++) {
	if (PlayerSkill[i] == Random) {
	    player[i] = new RandomPlayer (PlayerNames[i]);
	} else if (PlayerSkill[i] == Smart) {
	    player[i] = new SmartPlayer (PlayerNames[i]);
	} else {
	    cout << "Oops, I don't know skill level " << PlayerSkill[i] <<
		endl;
	    cout << "Dying gracefully ..." << endl;
	    exit(0);
	}
    }

    // Who is the player to my left?
    // This can't be done in the constructor for Player cos it's a
    // circle of references!
    for (int i=0; i<numPlayers; i++) {
	player[i]->setPlayerToMyLeft (player [(i+1) % numPlayers]);
    }

    // Now set up the deck and deal.
    Deck *deck = new Deck();
    int numHands = 0;
    Player* curDealer = player [0];

    // We will use ``break'' to leave this loop if/when a player's
    // score exceeds Globals::MaxPoints points.  See below.
    while (true) {
	numHands += 1;
	deck->shuffle();

	// A small cheat:  we don't actually delete the cards from the
	// deck when we deal them, but we do reshuffle each round.
	Player* curPlayer = curDealer;
	for (vector<Card*>::const_iterator viter=deck->begin();
		viter!=deck->end(); viter++){
	    Card *nextCard = (*viter);
	    curPlayer->addCard (nextCard);
	    curPlayer = curPlayer->getPlayerToMyLeft();
	}

	// Now poll for who has lead.
	for (int i=0; i<numPlayers; i++) {
	    if (player [i]->hasTwoOfClubs()) {
		curPlayer = player [i];
		break;
	    }
	}

	// Now print out the starting hands of the players.
	cout << "\n\nHere are the hands of each player for hand number " <<
	    numHands << endl << endl;
	for (int i=0; i<numPlayers; i++) {
	    cout << player[i]->getName() << " has these cards:" << endl;
	    player[i]->printHand();
	    cout << endl;
	}

	// Now play all of the rounds of this hand.  
	// We will count up the scores at the end of the hand.
	const int numRounds = Card::numCards / numPlayers;
	for (int i=1; i <= numRounds; i++) {
	    // The trick will contain at most numRounds cards.
	    Trick *currentTrick = new Trick();
	    cout << "\nNow starting round " << i << " of hand " << numHands
		<< endl;
	    for (int j=0; j<numPlayers; j++) {
		curPlayer->playCard (currentTrick);
		curPlayer = curPlayer->getPlayerToMyLeft();
	    }

	    // Now figure out who won this trick and give him/her the 
	    // cards; (s)he also gets to lead next time around.
	    curPlayer = currentTrick->getTrumper();
	    curPlayer->addTrick (currentTrick);
	}


	// Print out the scores at the end of the hand.
	cout << "\nAt the end of hand " << numHands << ", the score is:" <<
	    endl;
	for (int i=0; i<numPlayers; i++) {
	    player[i]->countAndAddPoints();
	    cout << "    " << player[i]->getName() << "  " <<
		player[i]->getPoints() << endl; }

	// Check if someone is over Globals.MaxPoints points.
	int maxPts = player[0]->getPoints(); 
	int minPts = player[0]->getPoints();
	int maxPlayer = 0, minPlayer = 0;
	// Start at player 1, since we've already looked at player 0.
	for (int i=1; i<numPlayers; i++) {
	    if (player[i]->getPoints() > maxPts) {
		maxPts = player[i]->getPoints();
		maxPlayer = i;
	    } else if (player[i]->getPoints() < minPts) {
		minPts = player[i]->getPoints();
		minPlayer = i;
	    }
	}
	if (maxPts >= Globals::MaxPoints){
	    cout << "\nThe game is over." << endl;
	    cout << player[maxPlayer]->getName() << " has exceeded " <<
		Globals::MaxPoints << " points." << endl;
	    cout << "The winner is " << player[minPlayer]->getName() <<
		endl;
	    // Leave the main loop, we are all done!
	    // This breaks out of the outer ``while(true)'' loop.
	    break;
	}

	// Now ask for everyone's cards back
	for (int i=0; i<numPlayers; i++) {
	    player[i]->resetHand();
	}

	// Deal passes to the left.
	curDealer = curDealer->getPlayerToMyLeft();
    }
}