//Fun/AdventCalendar2020/Day4-1.cpp
//Matthew Ellison
// Created: 12-04-20
//Modified: 12-04-20
//Validate passport data


#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include "Stopwatch.hpp"
#include "Algorithms.hpp"


struct passport{
	std::string birthYear;
	std::string issueYear;
	std::string expirationYear;
	std::string height;
	std::string hairColor;
	std::string eyeColor;
	std::string passportId;
	std::string countryId;
	//Returns true if the passport is valid
	bool isValid(){
		if(validString(birthYear) && validString(issueYear) && validString(expirationYear) && validString(height) && validString(hairColor) && validString(eyeColor) && validString(passportId)){
			return true;
		}
		else{
			return false;
		}
	}
	//Returns true if the string is a valid string
	bool validString(std::string str){
		if(!str.empty()){
			return true;
		}
		else{
			return false;
		}
	}
};


std::vector<passport> importData(){
	std::vector<passport> passports;
	std::ifstream inputFile;
	inputFile.open("inputs/Day4.txt");	//Open the file that has the input for the question

	//Get the input one line at a time because a full blank line is the end of a passport
	while(!inputFile.eof()){
		passport currentPassport;
		std::string currentLine;
		std::getline(inputFile, currentLine);
		while(currentLine != ""){
			//Split the string on [space]
			for(std::string str : mee::split(currentLine, ' ')){
				//Split the string on :
				std::vector<std::string> fields = mee::split(str, ':');
				std::string field = fields[0];
				std::string value = fields[1];

				//Determine what field you are dealing with and save the data
				if(field == "byr"){
					currentPassport.birthYear = value;
				}
				else if(field == "iyr"){
					currentPassport.issueYear = value;
				}
				else if(field == "eyr"){
					currentPassport.expirationYear = value;
				}
				else if(field == "hgt"){
					currentPassport.height = value;
				}
				else if(field == "hcl"){
					currentPassport.hairColor = value;
				}
				else if(field == "ecl"){
					currentPassport.eyeColor = value;
				}
				else if(field == "pid"){
					currentPassport.passportId = value;
				}
				else if(field == "cid"){
					currentPassport.countryId = value;
				}
				else{
					std::cout << "ERROR!\n" << "field = " << field << "\tValue = " << value << std::endl;
					exit(1);
				}
			}
			std::getline(inputFile, currentLine);
		}
		passports.push_back(currentPassport);
	}

	return passports;
}

int main(){
	mee::Stopwatch timer;
	int validPassports = 0;

	//Start the timer
	timer.start();


	//Get the passport data
	std::vector<passport> passports = importData();

	//Count how many are valid
	for(passport pspt : passports){
		if(pspt.isValid()){
			++validPassports;
		}
	}


	//Stop the timer
	timer.stop();

	//Print the results
	std::cout << "There are " << validPassports << " valid passports"
			<< "\nIt took " << timer.getStr() << " to finish this problem" << std::endl;

	return 0;
}

/* Results:

*/