#include <iostream>
#include <string>
#include <cstdlib>
#include <chrono>
#include <thread>
#include <fstream>

#include "Race.h"
#include "Horse.h"

// race as in event and race as in track
Race::Race(){
	length = 32; // default length
	numHorses = 4; // default number of horses
	horses = new Horse[numHorses]; // make some horses
}

Race::Race(int length){
	this->length = length; // defined length
	this->numHorses = 4; // default number of horses
	horses = new Horse[numHorses]; // make some horses
}

// formatted output
std::string Race::raceToString(){
	std::string out = "";
	int i = 0;
	for (i = 0; i < numHorses; i++){
		out = out + laneToString(i) + "\n";
	}
	return out;
}

std::string Race::laneToString(int lane){
	std::string out = "";
	out = out + std::to_string(lane + 1) + "|";
	int i = 0;
	for (i = 0; i < length; i++){
		// prints the horses number at its latest position
		if (i == horses[lane].getPosition()){
			out = out + std::to_string(lane + 1);
		// prints a lane visual
		} else {
			out = out + "-";
		} // end if
	} // end for
	out = out + "|";
	// out = out + std::endl; // newline and stream flush
	return out;
}

// prints one lane
void Race::printLane(int lane){ // which lane
	int i = 0;
	for (i = 0; i < length; i++){
		// prints the horses number at its latest position
		if (i == horses[lane].getPosition()){
			std::cout << lane;
		// prints a lane visual
		} else {
			std::cout << "-";
		} // end if
	} // end for
	std::cout << std::endl; // newline and stream flush
}

// all the horses flip a coin and advance accordingly
void Race::step(){
	int i = 0;
	// all horses in the race
	for (i = 0; i < numHorses; i++){
		horses[i].advance(); // horses know how to advance
	}
}

// prints each lane
void Race::printAllLanes(){
	int i = 0;
	for (i = 0; i < numHorses; i++){
		printLane(i);
	}
}

// checks if any horses have won or tied
bool Race::isFinished(){
	int i = 0;
	// all horses in the race
	for (i = 0; i < numHorses; i++){
		if (horses[i].getPosition() == length){
			return true; // one or more winners
		}
	}
	return false;
}

// who won the race?
int Race::getWinner(){
	int i = 0;
	for (i = 0; i < numHorses; i++){
		// if horse at i finished...
		if (horses[i].getPosition() == length){
			return (i + 1); // winner by number
		}
	}
	return -1;
}

// prints winner(s)
void Race::printWinners(){
	std::cout << "horse(s)";
	int i = 0;
	// check all the horses
	for (i = 0; i < numHorses; i++){
		// if horse at i finished...
		if (horses[i].getPosition() == length){
			std::cout << " " << i; // ...horse at i won!
		}
	}
	std::cout << " won (tied)!" << std::endl;
}

// log the winner
void Race::logWinner(){
	std::ofstream fout ("winners.log", std::ios::app);
	fout << std::to_string(getWinner()); // log by number not index
	fout.close();
}