package project3;
import java.io.FileNotFoundException;
import java.io.File;
import java.util.Scanner;

public class movieDB {
 public static void main(String[] args) {
   System.out.println("Welcome to the Java loops tutorial!");
   int i = 0;
   displayMenu(i);
  } //end main

 //method used to display the menu driven interface to the user
 //input: int
 //output: none
 public static void displayMenu(int i) {
   Scanner fromKb = new Scanner(System.in);
   int choice;
   System.out.print("\033[H\033[2J");
   while (true) {
    //new method
    System.out.println("\n1: display all movies");
    System.out.println("2: display shortest movie");
    System.out.println("3: display longest movie");
    System.out.println("4: display oldest movie");
    System.out.println("5: display newest movie");
    System.out.println("6: display movies by rating");
    System.out.println("7: quit the program");
    System.out.println("Choice: ");
    choice = fromKb.nextInt();
    System.out.print("\033[H\033[2J");
    if (choice == 7)
     break;
    options(choice, i, fromKb);

   } //end while
  } //end displayMenu

 //method that calls specific loop pattern methods based on user input
 //input: int, int, Scanner
 //output: none
 public static void options(int c, int i, Scanner kb) {

   if (c == 1) display_all(i);
   else if (c == 2) display_shortest(i);
   else if (c == 3) display_longest(i);
   else if (c == 4) display_oldest(i);
   else if (c == 5) display_newest(i);
   else if (c == 6) {
    System.out.print("Display movies with what rating?");
    String match = kb.next();
    search(match);
   } //end if
   else System.out.println("Invalid input, please try again.");
  } //end options

 //method used to display each separate line in a String array
 //input: int
 //output: none
 public static void display_all(int i) {

   String fileName = "movies.txt";
   String[] lines = new String[3];
   readFile(lines, fileName);
   //print values stored in String[] lines:
   System.out.println("line 1: " + lines[0]);
   System.out.println("line 2: " + lines[1]);
   System.out.println("line 3: " + lines[2]);
  } //end display_all

 //method used to display the shortest movie in the array
 //input: int
 //output: none
 public static void display_shortest(int i) {

   String fileName = "movies.txt";
   String[] lines = new String[3];
   readFile(lines, fileName);
   String[] value1 = lines[0].split(",");
   String runtime1 = value1[3];
   int rt1 = Integer.parseInt(runtime1);
   String[] value2 = lines[1].split(",");
   String runtime2 = value2[3];
   int rt2 = Integer.parseInt(runtime2);
   String[] value3 = lines[2].split(",");
   String runtime3 = value3[3];
   int rt3 = Integer.parseInt(runtime3);

   int[] runtime_as_array = {
    rt1,
    rt2,
    rt3
   };
   int min = runtime_as_array[0];
   for (int j = 1; j < runtime_as_array.length; j++) {
    if (runtime_as_array[j] < min)
     min = runtime_as_array[j];
   } //end for
   String match = Integer.toString(min);
   search(match);
  } //end display_shortest

 //method used to display the longest movie in the array
 //input: int
 //output: none
 public static void display_longest(int i) {

   String fileName = "movies.txt";
   String[] lines = new String[3];
   readFile(lines, fileName);
   String[] value1 = lines[0].split(",");
   String runtime1 = value1[3];
   int rt1 = Integer.parseInt(runtime1);
   String[] value2 = lines[1].split(",");
   String runtime2 = value2[3];
   int rt2 = Integer.parseInt(runtime2);
   String[] value3 = lines[2].split(",");
   String runtime3 = value3[3];
   int rt3 = Integer.parseInt(runtime3);

   int[] runtime_as_array = {
    rt1,
    rt2,
    rt3
   };
   int max = runtime_as_array[0];
   for (int j = 1; j < runtime_as_array.length; j++) {
    if (runtime_as_array[j] > max)
     max = runtime_as_array[j];
   } //end for
   String match = Integer.toString(max);
   search(match);
  } //end display_longest

 //method used to display the oldest movie in the array
 //input: int
 //output: none
 public static void display_oldest(int i) {

   String fileName = "movies.txt";
   String[] lines = new String[3];
   readFile(lines, fileName);
   String[] value1 = lines[0].split(",");
   String release1 = value1[2];
   int rl1 = Integer.parseInt(release1);
   String[] value2 = lines[1].split(",");
   String release12 = value2[2];
   int rl2 = Integer.parseInt(release12);
   String[] value3 = lines[2].split(",");
   String release13 = value3[2];
   int rl3 = Integer.parseInt(release13);

   int[] runtime_as_array = {
    rl1,
    rl2,
    rl3
   };
   int min = runtime_as_array[0];
   for (int j = 1; j < runtime_as_array.length; j++) {
    if (runtime_as_array[j] < min)
     min = runtime_as_array[j];
   } //end for
   String match = Integer.toString(min);
   search(match);
  } //end display_oldest

 //method used to display the newest movie in the array
 //input: int
 //output: none
 public static void display_newest(int i) {

   String fileName = "movies.txt";
   String[] lines = new String[3];
   readFile(lines, fileName);
   String[] value1 = lines[0].split(",");
   String release1 = value1[2];
   int rl1 = Integer.parseInt(release1);
   String[] value2 = lines[1].split(",");
   String release12 = value2[2];
   int rl2 = Integer.parseInt(release12);
   String[] value3 = lines[2].split(",");
   String release13 = value3[2];
   int rl3 = Integer.parseInt(release13);

   int[] runtime_as_array = {
    rl1,
    rl2,
    rl3
   };
   int max = runtime_as_array[0];
   for (int j = 1; j < runtime_as_array.length; j++) {
    if (runtime_as_array[j] > max)
     max = runtime_as_array[j];
   } //end for
   String match = Integer.toString(max);
   search(match);
  } //end display_newest

 //method used for finding and reading a file based on its name
 //input: String[], String
 //output: none
 public static void readFile(String[] l, String f) {
   int counter = 0;
   try {
    Scanner fromFile = new Scanner(new File(f));
    while (fromFile.hasNextLine()) {
     l[counter] = fromFile.nextLine();
     counter++;
    } //end while
   } //end try block
   catch (FileNotFoundException e) {
    System.out.println("I'm sorry, Dave. I'm afraid I can't do that.");
    System.out.println("File not found.");
   } //end catch block
  } //end readFile

 //method used to search the match for an element in a file
 //input: String
 //output: none
 public static void search(String match) {

   File file = new File("movies.txt");
   Scanner in = null;
   try { in = new Scanner(file);
    boolean found = false;
    while ( in .hasNext()) {
     String line = in .nextLine();
     if (line.contains(match)) {
      System.out.println(line);
      found = true;
     }
    } //end while
    System.out.println("Movie was found: " + found);
   } catch (FileNotFoundException e) {
    e.printStackTrace();
   } //end try and catch block

  } //end search
} //end class