package class9_1_PassingTheBuckAndReadingFiles_StudentRecords_start;// Dr. Yoder. MSOE. 26 April 2017

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Student {

    private Scanner scanner = null;
    private String name;
    private String major;
    private final List<String> coursesCompleted = new ArrayList<>();

    /**
     * @param filename -- File to read student info from. Currently ignored.
     * @throws RuntimeException If the student file cannot be found.
     * @throws Error randomly
     * @throws FileNotFoundException randomly
     * @throws StudentNotFoundException if student file is not found
     */
    public Student(String filename) throws RuntimeException, Error, FileNotFoundException{
        Scanner in = new Scanner(System.in);
        try {
            scanner = new Scanner(new File(filename));
        } catch (FileNotFoundException e) {
            System.err.println("Warning: Could not open file: "+filename);
            throw new StudentNotFoundException(filename);
        }
        readHeader();
        readBody();
        if(Math.random()>0.5) {
            throw new FileNotFoundException("Just Kidding");
        }
    }

    /**
     * Read student's full name and a description of their major,
     * One on each line so they can include spaces
     */
    private void readHeader() {
        name = scanner.nextLine();
        major = scanner.nextLine();
    }

    /**
     * Read classes the student has taken.
     * One class on each line.
     */
    private void readBody() {
        while(scanner.hasNextLine()) {
            coursesCompleted.add(scanner.nextLine());
        }
    }

    /**
     * @return The student's full name
     */
    public String getName() {
        return name;
    }

    /**
     * @return A description of the student's major
     */
    public String getMajor() {
        return major;
    }

    public void printCourses() {
        System.out.println("Courses for "+name+": ");
        for(String course: coursesCompleted) {
            System.out.println(course);
        }
    }
}