// A program to read in the number of votes each of two candidates received
//   in a number of precincts, then compute the winner of the election.
//
// This version of the program has added some structure by defining methods,
//   but still has a lot of redundancy. In addition, the program uses chaining,
//   which is considered poor style. Note how each method simply calls the next,
//   with control never returning to main until the end of the program.
import java.util.*;

public class ElectionChained {
   public static final int NUM_VOTERS = 291;    // total number of eligible voters

   public static void main(String[] args) {
      Scanner console = new Scanner(System.in);
      intro();
      
      pajamaParty(console);
   }
   
   // Prints out an introduction to the program.
   public static void intro() {
      System.out.println("This program reads in data for two candidates");
      System.out.println("and computes the result of an election");
      System.out.println();   
   }
   
   
   // Reads in and computes the second candidate's total votes.
   // Scanner console: the Scanner to use for input   
   // int firstVotes: the number of votes the first candidate received
   public static void pajamaParty(Scanner console) {
      System.out.println("Enter Pajama Party candidate's totals:");
      System.out.print("How many precincts? ");
      int numPrecincts = console.nextInt();
      int pajama = 0;
      for (int i = 1; i <= numPrecincts; i++) {
         System.out.print("   Votes in next precinct? ");
         int votes = console.nextInt();
         pajama += votes;
      }
      System.out.println();
      costumeParty(console, pajama);   
   }
   
   // Reads in and computes the first candidate's total votes.
   // Scanner console: the Scanner to use for input
   public static void costumeParty(Scanner console, int pajama) {
      System.out.println("Enter Costume Party candidate's totals:");
      System.out.print("How many precincts? ");
      int numPrecincts = console.nextInt();
      int costume = 0;
      for (int i = 1; i <= numPrecincts; i++) {
         System.out.print("   Votes in next precinct? ");
         int votes = console.nextInt();
         costume += votes;
      }
      System.out.println();
      reportResults(console, costume, pajama);   
   }
   
   // Computes and prints the final results of the election.
   // Scanner console: the Scanner to use for input
   // int firstVotes: the number of votes the first candidate received
   // int secondVotes: the number of votes the second candidate received   
   public static void reportResults(Scanner console, int firstVotes, int secondVotes) {
      int totalVotes = firstVotes + secondVotes;
      double pct1 = 100.0 * firstVotes / totalVotes;
      double pct2 = 100.0 * secondVotes / totalVotes;

      System.out.println("Pajama party received " + round2(pajamaPct) + "% of the " + totalVotes + " votes.");
      System.out.println("Costume party received " + round2(costumePct) + "% of the " + totalVotes + " votes.");
      if (pajamaPct > costumePct) {
         System.out.println("Pajama party wins!!");
      } else if (costumePct < pajamaPct) {
         System.out.println("Costume party wins!!");
      } else { 
         System.out.println("It's a tie!!");
      }
      System.out.println("Congratulations to all candidates");
      reportTurnout(totalVotes);     
   }
   
   // Prints the turnout results and an associated message
   // int totalVotes: the total number of votes cast in the election
   public static void reportTurnout(int totalVotes) {
      double turnoutPct = calculatePercent(totalVotes, NUM_VOTERS);
      System.out.println("Turnout was " + turnoutPct + "%");
      if (turnoutPct >= 75) {
         System.out.println("What a politically-active community!");
      } else if (turnoutPct >= 50) {
         System.out.println("The majority of people came out to vote!");
      } else if (turnoutPct >= 25) {
         System.out.println("We've got some work to do...");
      } else {
         System.out.println("How does no one like pajamas or costumes?");
      }
   }

   // Returns the given number rounded to two decimal places.
   // double num: the number to round
   public static double round2(double num) {
      return Math.round(num * 100.0) / 100.0;
   }
}