/*
CSE 142, Autumn 2007 (Marty Stepp)
This program searches a file of employees for a particular person
and prints information about that employee's hours worked.

Example of input data:
123 Susan 12.5 8.1 7.6 3.2
456 Brad 4.0 11.6 6.5 2.7 12

Two example outputs:
Enter a name: Brad
Brad (ID#456) worked 36.8 hours (7.359999999999999 hours/day)

Enter a name: Harvey
Harvey was not found.
*/

import java.io.*;
import java.util.*;

public class Hours {
    public static void main(String[] args) throws FileNotFoundException {
        Scanner console = new Scanner(System.in);
        System.out.print("Enter a name: ");
        String name = console.next();          // e.g. "Brad"
        
        Scanner input = new Scanner(new File("hours.txt"));

        // "boolean flag" (5.2)
        // This variable remembers if we ever found the name or not.
        boolean found = false;

        while (input.hasNextLine() && !found) {
            String line = input.nextLine();
            Scanner lineScan = new Scanner(line);
            if (processLine(lineScan, name)) {
                // We found the name!  Remember this.
                found = true;
            }
        }
        
        if (found == false) {
            // didn't ever see the person; print an error message
            System.out.println(name + " was not found.");
        }
    }
    
    // This message examines a line of input and prints hours stats on it,
    // if the line is about the person represented by nameToLookFor.
    // The method returns true if the nameToLookFor was found and false if not.
    public static boolean processLine(Scanner lineScan, String nameToLookFor) {
        // read worker ID, name, total hours, # days
        int id = lineScan.nextInt();
        String name = lineScan.next();
        if (name.equals(nameToLookFor)) {
            // only print the output if this is the name they are looking for
            double totalHours = 0.0;
            int days = 0;
            while (lineScan.hasNextDouble()) {
                double hours = lineScan.nextDouble();
                totalHours += hours;
                days++;
            }
            System.out.println(name + " (ID#" + id +  ") worked " + totalHours + 
                               " hours (" + (totalHours / days) + " hours/day)");
            return true;
        } else {
            // didn't find them
            return false;
        }
    }
}