//Assignment: 3
//Version: 1
//Name: Jeremy Pequeno
//Instructor: Patricia Carando

#include <algorithm>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <vector>

using namespace std;

const int FILM_RATING_G       = 0;

const int FILM_RATING_PG      = 1;

const int FILM_RATING_PG_13   = 2;

const int FILM_RATING_R       = 3;

const int FILM_RATING_NC_17   = 4;

const int FILM_RATING_UNRATED = 5;

const int SIZE = 10;


struct Film {

     int id;                      // the unique id of the film

     string name;            // the film's name

     string description;   // the film's description

     int runningTime;      // the film's running time in minutes <= 180

     int rating;                // the film's rating, from the const decls

};

string filmRatingToString(int rating);
vector <Film> addFilms (vector <Film> &films);
vector <Film> findFilmsByRating ( int rating, vector <Film> &films);
vector <Film> findFilmsByRatingAndRunningTime ( int rating, int runningTime, vector <Film> &films);
vector <Film> selectionSort (vector <Film> &films);
void printFilm(Film films);
void printFilms(vector<Film> films);


int main(){
	vector <Film> films (SIZE);
	cout << "***** Films added ***** \n" << endl;
	addFilms(films);
	printFilms(films);

	cout << "\n***** Films in sorted order by their run time ***** \n" << endl;
	printFilms(selectionSort(films));

	cout << "\n*****Films rated PG-13 or less***** \n" << endl;
	findFilmsByRating(FILM_RATING_PG_13, films);

	cout << "\n*****Films rated PG-13 or less and less than 90 minutes long***** \n" << endl;
	findFilmsByRatingAndRunningTime(FILM_RATING_PG_13, 90, films);

	return 0;
}

string filmRatingToString(int rating){
	string filmRating;

	if(rating == 0){
		filmRating = "G";
	}
	if(rating == 1){
		filmRating = "PG";
	}
	if(rating == 2){
		filmRating = "PG-13";
	}
	if(rating == 3){
		filmRating = "R";
	}
	if(rating == 4){
		filmRating = "NC-17";
	}
	if(rating == 5){
		filmRating = "Unrated";
	}
	return filmRating;
}

//innitialize values in the vector films
vector <Film> addFilms (vector <Film> &films)
{
	films[0].id = 0;
	films[0].name = "Willy Wonka & the Chocolate Factory";
	films[0].description = "Children take a tour of a candy factory from the most famous of all candy producers.";
	films[0].runningTime = 100;
	films[0].rating = FILM_RATING_G;

	films[1].id = 1;
	films[1].name = "It (2017)";
	films[1].description = "In the summer of 1989, a group of bullied kids band together to destroy a shapeshifting monster, which disguises itself as a clown and preys on the children of Derry, their small Maine town.";
	films[1].runningTime = 135;
	films[1].rating = FILM_RATING_R;

	films[2].id = 2;
	films[2].name = "Toy Story";
	films[2].description = "A cowboy doll is profoundly threatened and jealous when a new spaceman figure supplants him as top toy.";
	films[2].runningTime = 81;
	films[2].rating = FILM_RATING_G;

	films[3].id = 3;
	films[3].name = "Silent Hill";
	films[3].description = "A woman, Rose, goes in search for her adopted daughter within the confines of a strange, desolate town called Silent Hill.";
	films[3].runningTime = 132;
	films[3].rating = FILM_RATING_R;

	films[4].id = 4;
	films[4].name = "Avatar";
	films[4].description = "A paraplegic marine dispatched to the moon Pandora on a unique mission becomes torn between following his orders and protecting the world he feels is his home.";
	films[4].runningTime = 162;
	films[4].rating = FILM_RATING_PG_13;

	films[5].id = 5;
	films[5].name = "The Incredibles";
	films[5].description = "A family of undercover superheroes, while trying to live the quiet suburban life, are forced into action to save the world.";
	films[5].runningTime = 116;
	films[5].rating = FILM_RATING_PG;

	films[6].id = 6;
	films[6].name = "Up";
	films[6].description = "Seventy-eight year old Carl Fredricksen travels to Paradise Falls in his home equipped with balloons, inadvertently taking a young stowaway.";
	films[6].runningTime = 96;
	films[6].rating = FILM_RATING_PG;

	films[7].id = 7;
	films[7].name = "Forrest Gump";
	films[7].description = "The presidencies of Kennedy and Johnson, Vietnam, Watergate, and other history unfold through the perspective of an Alabama man with an IQ of 75.";
	films[7].runningTime = 142;
	films[7].rating = FILM_RATING_PG_13;

	films[8].id = 8;
	films[8].name = "Jurassic Park";
	films[8].description = "During a preview tour, a theme park suffers a major power breakdown that allows its cloned dinosaur exhibits to run amok.";
	films[8].runningTime = 127;
	films[8].rating = FILM_RATING_PG_13;

	films[9].id = 9;
	films[9].name = "The Lion King";
	films[9].description = "Lion cub and future king Simba searches for his identity. His eagerness to please others and penchant for testing his boundaries sometimes gets him into trouble.";
	films[9].runningTime = 88;
	films[9].rating = FILM_RATING_G;

	return films;
}

//Sorts movies based on their run time
vector <Film> selectionSort (vector <Film> &films){
	int minIndex, minValue;

	for(int i = 0; i < SIZE-1; i++){
		minIndex = i;
		minValue = films[i].runningTime;
		for(int j = i +1; j < SIZE; j++){
			if (films[j].runningTime < films[i].runningTime){
				minValue = films[j].runningTime;
				minIndex = j;
			}
		}
		swap(films[minIndex], films[i]);
	}
	return films;
}

//returns the set of films that have a rating of the specified rating or less
vector <Film> findFilmsByRating (int rating, vector <Film> &films){
	int index = 0; //subscript to search vector

	while(index < SIZE){
		if (films[index].rating <= rating){
			printFilm(films[index]);
		}
		index++;
	}
	return films;
}

//returns the set of films that have a rating of the specified rating or less and the specified running time or less
vector <Film> findFilmsByRatingAndRunningTime (int rating, int runningTime, vector <Film> &films){
	int index = 0; //subscript to search vector

	while(index < SIZE){
		if (films[index].rating <= rating && films[index].runningTime <= runningTime){
			printFilm(films[index]);
		}
		index++;
	}
	return films;

}

//prints the struct Film in a readable forma
void printFilm(Film film){

	cout << "Film title          : " << film.name << endl;
	cout << "Film description    : " << film.description << endl;
	cout << "Film running time   : " << film.runningTime <<" minutes" << endl;
	cout << "Film rating         : " << filmRatingToString(film.rating) << "\n"<< endl;

}

//prints a vector of structs in a readable format
void printFilms(vector<Film> films){
	for (int i = 0; i < SIZE; i++){
		printFilm(films[i]);
	}

}