/** Project 1 COP 3503

 *

 * @author shayan

 *

 */



import java.util.*;

import java.io.*;
import java.util.Scanner;
import java.util.ArrayList;



public class University {

    // Properties

    private String name;

    private String currentTerm; // Fall/Spring/etc.

    private int year;           // 2011...



    private Course[] courses;

    private Student[] students;

    private Instructor[] instructors;



    // Constructors

    public University(String name, String currentTerm, int year, Student[] students, Instructor[] instructors, Course[] courses) {

        this.name = name;

        this.currentTerm = currentTerm;

        this.year = year;



        this.students = students;

        this.courses = courses;

        this.instructors = instructors;

    }



    // Get/set

    public String getName() {

        return name;

    }



    public void setName(String name) {

        this.name = name;

    }



    public String getCurrentTerm() {

        return currentTerm;

    }



    public void setCurrentTerm(String currentTerm) {

        this.currentTerm = currentTerm;

    }



    public int getYear() {

        return year;

    }



    public void setYear(int year) {

        this.year = year;

    }



    public Course[] getCourses() {

        return courses;

    }



    public void setCourses(Course[] courses) {

        this.courses = courses;

    }



    public Student[] getStudents() {

        return students;

    }



    public void setStudents(Student[] students) {

        this.students = students;

    }



    public Instructor[] getInstructors() {

        return instructors;

    }



    public void setInstructors(Instructor[] instructors) {

        this.instructors = instructors;

    }



    public boolean writeToFile(String filename) {

        PrintWriter output = null;



        try {

            output = new PrintWriter(new File(filename));

            output.print("University Name: "); output.println(this.name);

            output.print("Current Term: "); output.println(this.currentTerm);

            output.print("Current Year: "); output.println(this.year);

            output.print("Number of Students: "); output.println(students.length);

            output.print("Number of Instructors: "); output.println(instructors.length);

            output.print("Number of Courses: "); output.println(courses.length);

                for(int i=0; i<students.length; i++) {

                    if(students[i] instanceof UndergradStudent) {

                        output.println("Undergrad Student:");

                    }

                        else if(students[i] instanceof GradStudent) {

                        output.println("Grad Student:");

                    }

                    output.print("Name: "); output.println(students[i].getName());

                    output.print("UFID: "); output.println(students[i].getUFID());

                    output.print("D.O.B: "); output.println(students[i].getDob());

                    output.print("GPA: "); output.println(students[i].getGpa());

                    output.print("Number of Courses: "); output.println(students[i].getNumCoursesEnrolled());

                }

                for(int i = 0; i<instructors.length; i++) {

                    output.println("Instructor:");

                    output.print("Name: "); output.println(instructors[i].getName());

                    output.print("UFID: "); output.println(instructors[i].getUFID());

                    output.print("D.O.B: "); output.println(instructors[i].getDob());

                }

                for(int i = 0; i<courses.length; i++) {
                    if(courses[i] != null) {

                        output.println("Course:");

                        output.print(courses[i].getType()); output.println(courses[i].getNumber());

                        output.println(courses[i].getTitle());

                        output.print("Number of Credits: "); output.println(courses[i].getNumCredits());

                        output.print("Instructor UFID: "); output.println(courses[i].getInstructor().getUFID());

                        output.print("Number of TAs: "); output.println(courses[i].getTAs().length);

                        output.print("TA UFIDs: ");

                            for(int j = 0; j<courses[i].getTAs().length; j++) {


                                output.print(courses[i].getTAs()[j].getUFID());
                                    if(j<courses[i].getTAs().length-1) {
                                        output.print(",");
                                    }

                            }

                        output.println(" ");

                        output.print("Capacity: "); output.println(courses[i].getCapacity());

                        output.print("Current Enrollment: "); output.println(courses[i].getCurrentEnrollment());

                        output.print("Student UFIDs: ");

                            for(int k = 0; k<courses[i].getStudents().length; k++) {
                                if(courses[i].getStudents()[k] != null) {

                                    output.print(courses[i].getStudents()[k].getUFID());
                                        if(k<courses[i].getStudents().length-1) {
                                            output.print(",");
                                        }
                                }

                            }

                        output.println(" ");
                    }



                }



                output.flush();

        }



        catch(IOException ioe) {

            System.out.println(ioe.toString());

        }



        finally {

            if (output != null){

                        output.close();

                        return true;

            }

        }

        return false;

    }




    public static University readFromFile(String filename) {

        String line1 = "";
        File inFile = new File(filename);
        Scanner in = null;
        String line2 = "";
        ArrayList<UndergradStudent> undergrads2 = new ArrayList<UndergradStudent>();
        ArrayList<GradStudent> grads2 = new ArrayList<GradStudent>();
        ArrayList<Course> courses2 = new ArrayList<Course>();
        ArrayList<Instructor> instructors2 = new ArrayList<Instructor>();
        ArrayList<Student> students2 = new ArrayList<Student>();
        String studentName = "";
        int studentUFID = 0;
        String studentDOB = "";
        double studentGPA = 0.0;
        int studentNumCourses = 0;
        String instructorName = "";
        int instructorUFID = 0;
        String instructorDOB = "";
        String courseType = "";
        int courseNumber = 0;
        String courseTitle = "";
        int numOfCredits = 0;
        int courseInstructorUFID = 0;
        int numOfTAs = 0;
        int taUFID = 0;
        int courseCapacity = 0;
        int currentEnrollment = 0;
    try {

        in = new Scanner(inFile);

                if ((line1 = in.nextLine()) == null) {
                    throw new EmptyFileException(filename);
                }


        String[] tokens = line1.split(" ");
            for(int i = 2; i<tokens.length; i++) {
                line2 += tokens[i];
                    if (i<tokens.length-1) {
                        line2 += " ";
                    }
            }
        String universityName = line2;
        line2 = "";

        line1 = in.nextLine();
        String[] tokens2 = line1.split(" ");
            for(int i = 2; i<tokens2.length; i++) {
                line2 += tokens2[i];
            }
        String currentTerm = line2;
        line2 = "";

        line1 = in.nextLine();
        String[] tokens3 = line1.split(" ");
            for(int i = 2; i<tokens3.length; i++) {
                line2 += tokens3[i];
            }
        int currentYear = Integer.parseInt(line2);
        line2 = "";

        line1 = in.nextLine();
        String[] tokens4 = line1.split(" ");
            for(int i = 3; i<tokens4.length; i++) {
                line2 += tokens4[i];
            }
        int numberOfStudents = Integer.parseInt(line2);
        line2 = "";
        Student[] students = new Student[numberOfStudents];



        line1 = in.nextLine();
        String[] tokens5 = line1.split(" ");
            for(int i = 3; i<tokens5.length; i++) {
                line2 += tokens5[i];
            }
        int numberOfInstructors = Integer.parseInt(line2);
        line2 = "";
        Instructor[] instructors = new Instructor[numberOfInstructors];



        line1 = in.nextLine();
        String[] tokens6 = line1.split(" ");
            for(int i = 3; i<tokens6.length; i++) {
                line2 += tokens6[i];
            }
        int numberOfCourses = Integer.parseInt(line2);
        line2 = "";
        Course[] courses = new Course[numberOfCourses];

        for(int i = 0; i<numberOfStudents; i++) {
            int count = 0;
            line1 = in.nextLine();
                if(line1.equals("Undergrad Student:")) {
                            line1 = in.nextLine();
                            String[] tokens7 = line1.split(" ");
                                for(int a = 1; a < tokens7.length; a++){
                                    line2 += tokens7[a];
                                    if (a<tokens7.length-1) {
                                        line2 += " ";
                                }
                                    }
                            studentName = line2;
                            line2 = "";

                            line1 = in.nextLine();
                            String[] tokens8 = line1.split(" ");
                                for(int b = 1; b<tokens8.length; b++) {
                                    line2 += tokens8[b];
                                }
                            studentUFID = Integer.parseInt(line2);
                            line2 = "";

                            line1 = in.nextLine();
                            String[] tokens9 = line1.split(" ");
                                for(int c = 1; c<tokens9.length; c++) {
                                    line2 += tokens9[c];
                                }
                            studentDOB = line2;
                            line2 = "";

                            line1 = in.nextLine();
                            String[] tokens10 = line1.split(" ");
                                for(int d = 1; d<tokens10.length; d++){
                                    line2 += tokens10[d];
                                }
                            studentGPA = Double.parseDouble(line2);
                            line2 = "";

                            line1 = in.nextLine();
                            String[] tokens11 = line1.split(" ");
                                for(int e =3; e<tokens11.length; e++) {
                                    line2 += tokens11[e];
                                }
                            studentNumCourses = Integer.parseInt(line2);
                            line2 = "";

                    UndergradStudent underGradStudent = new UndergradStudent(studentName, studentUFID, studentDOB, studentGPA);
                    undergrads2.add(underGradStudent);
        }

                else if(line1.equals("Grad Student:")) {

                                line1 = in.nextLine();
                            String[] tokens7 = line1.split(" ");
                                for(int a = 1; a < tokens7.length; a++){
                                    line2 += tokens7[a];
                                    if (a<tokens7.length-1) {
                                        line2 += " ";
                                }
                                    }
                            studentName = line2;
                            line2 = "";

                            line1 = in.nextLine();
                            String[] tokens8 = line1.split(" ");
                                for(int b = 1; b<tokens8.length; b++) {
                                    line2 += tokens8[b];
                                }
                            studentUFID = Integer.parseInt(line2);
                            line2 = "";

                            line1 = in.nextLine();
                            String[] tokens9 = line1.split(" ");
                                for(int c = 1; c<tokens9.length; c++) {
                                    line2 += tokens9[c];
                                }
                            studentDOB = line2;
                            line2 = "";

                            line1 = in.nextLine();
                            String[] tokens10 = line1.split(" ");
                                for(int d = 1; d<tokens10.length; d++){
                                    line2 += tokens10[d];
                                }
                            studentGPA = Double.parseDouble(line2);
                            line2 = "";

                            line1 = in.nextLine();
                            String[] tokens11 = line1.split(" ");
                                for(int e =3; e<tokens11.length; e++) {
                                    line2 += tokens11[e];
                                }
                            studentNumCourses = Integer.parseInt(line2);
                            line2 = "";

                    GradStudent gradStudent = new GradStudent(studentName, studentUFID, studentDOB, studentGPA);
                    grads2.add(gradStudent);
            }
        }




        for(int x = 0; x < numberOfInstructors; x++) {
            line1 = in.nextLine();
            line1 = in.nextLine();
                String[] tokens12 = line1.split(" ");
                        for(int f = 1; f < tokens12.length; f++){
                            line2 += tokens12[f];
                                if (f<tokens12.length-1) {
                                    line2 += " ";
                                }
                        }
                            instructorName = line2;
                            line2 = "";

            line1 = in.nextLine();
                String[] tokens13 = line1.split(" ");
                    for(int g = 1; g<tokens13.length; g++){
                        line2 += tokens13[g];
                    }
                    instructorUFID = Integer.parseInt(line2);
                    line2 = "";

            line1 = in.nextLine();
                String[] tokens14 = line1.split(" ");
                    for(int h = 1; h<tokens14.length; h++){
                        line2 += tokens14[h];
                    }
                    instructorDOB = line2;
                    line2 = "";

            Instructor instructor = new Instructor(instructorName, instructorUFID, instructorDOB);

                for(int ab = 0; ab <instructors.length; ab++) {
                    if(instructors[ab] == null) {
                        instructors[ab] = instructor; break;
                    }
                }
        }



        for(int z = 0; z<numberOfCourses; z++) {
                line1 = in.nextLine();
                line1 = in.nextLine();
                    String[] tokens15 = line1.split(" ");
                    courseType = tokens15[0];
                    courseNumber = Integer.parseInt(tokens15[1]);

                line1 = in.nextLine();
                courseTitle = line1;

                line2 = "";
                line1 = in.nextLine();
                String[] tokens16 = line1.split(" ");
                    for(int j = 3; j<tokens16.length; j++){
                        line2 += tokens16[j];
                    }
                    numOfCredits = Integer.parseInt(line2);
                    line2 = "";





                line1 = in.nextLine();
                String[] tokens17 = line1.split(" ");
                    for(int k = 2; k<tokens17.length; k++){
                        line2 += tokens17[k];
                    }
                    courseInstructorUFID = Integer.parseInt(line2);
                    line2 = "";

                line1 = in.nextLine();
                String[] tokens18 = line1.split(" ");
                    for(int l = 3; l<tokens18.length; l++) {
                        line2 += tokens18[l];
                    }
                    numOfTAs = Integer.parseInt(line2);
                    line2 = "";
                    int[] TAUFIDs = new int[numOfTAs];

                line1 = in.nextLine();
                String[] tokens19 = line1.split(" ");
                for(int n = 2; n<tokens19.length; n++) {
                            line2 += tokens19[n];
                }
                        String[] tokens20 = line2.split(",");

                    if(tokens20.length < 2) {
                        taUFID = Integer.parseInt(line2);
                        TAUFIDs[0] = taUFID;
                    }
                    else {

                        for(int o =0; o<tokens20.length; o++) {
                            TAUFIDs[o] = Integer.parseInt(tokens20[o]);
                        }
                    }
                line2 = "";

                line1 = in.nextLine();
                String[] tokens21 = line1.split(" ");
                    for(int p = 1; p<tokens21.length; p++){
                        line2 += tokens21[p];
                    }
                courseCapacity = Integer.parseInt(line2);
                line2 = "";
                int[] studentUFIDs = new int[currentEnrollment];





        Course course = new Course(courseType, courseNumber, courseTitle, numOfCredits);

        GradStudent[] TAs = new GradStudent[numOfTAs];













                    for(int ee = 0; ee<instructors.length; ee++) {
                        if(instructors[ee].getUFID() == courseInstructorUFID) {
                            course.setInstructor(instructors[ee]);
                            instructors[ee].setCourse(course);
                        }
                    }




                line1 = in.nextLine();
                String[] tokens22 = line1.split(" ");
                    for(int q = 2; q<tokens22.length; q++) {
                        line2 += tokens22[q];
                    }
                currentEnrollment = Integer.parseInt(line2);
                line2 = "";


                line1 = in.nextLine();
                    String[] tokens23 = line1.split(" ");
                for(int r = 2; r<tokens23.length; r++) {
                            line2 += tokens23[r];
                }
                        String[] tokens24 = line2.split(",");

                    if(tokens24.length < 2) {
                        studentUFID = Integer.parseInt(line2);
                        studentUFIDs[0] = studentUFID;
                    }
                    else {

                        for(int s =0; s<studentUFIDs.length; s++) {
                            studentUFIDs[s] = Integer.parseInt(tokens24[s]);
                        }
                    }

        course.setCapacity(courseCapacity);

                for(int u = 0; u < grads2.size(); u++) {
                    for(int w = 0; w < studentUFIDs.length; w++) {

                            if(grads2.get(u).getUFID() == studentUFIDs[w]){
                                grads2.get(u).addCourse(course);
                                course.addStudent(grads2.get(u));
                            }

                    }
                }



                for(int ux = 0; ux < undergrads2.size(); ux++) {
                    for(int wx = 0; wx < studentUFIDs.length; wx++) {

                            if(undergrads2.get(ux).getUFID() == studentUFIDs[wx]){
                                undergrads2.get(ux).addCourse(course);
                                course.addStudent(undergrads2.get(ux));
                            }

                    }
                }









course.setCapacity(courseCapacity);

        for(int gg = 0; gg<grads2.size(); gg++) {
                    for(int hh = 0; hh<TAUFIDs.length; hh++){
                        if(grads2.get(gg) != null && grads2.get(gg).getUFID() == TAUFIDs[hh]){
                            grads2.get(gg).setCourseTA(course);
                                for(int xx = 0; xx < TAs.length; xx++){
                                    if(TAs[xx] == null) {
                                        TAs[xx] = grads2.get(gg);break;
                                    }
                                }
                        }
                    }
        }

        course.setTAs(TAs);













                course.setCurrentEnrollment(currentEnrollment);

                for(int bc = 0; bc<courses.length; bc++) {
                                    if(courses[bc] == null) {
                                        courses[bc] = course;
                                    }
                                }















        for(int ada = 0; ada < undergrads2.size(); ada++){
            for(int eza = 0; eza < students.length; eza++){
                if(students[eza] == null) {
                        students[eza] = undergrads2.get(ada);break;
                    }
                }
            }










        for(int ad = 0; ad < grads2.size(); ad++){
            for(int ez = 0; ez < students.length; ez++){
                if(students[ez] == null) {
                        students[ez] = grads2.get(ad);break;
                    }
                }
            }



}




















        University ufl = new University(universityName, currentTerm, currentYear, students, instructors, courses);
        return ufl;


    }   catch (EmptyFileException e) {

            e.toString();

        } catch (FileNotFoundException x) {
            x.printStackTrace();


        }finally {
            if (in != null)

                        in.close();
        }

        return null;

}























    // toString

    public String toString() {

        String str = "University Name: " + name;

        //str += "\nCurrent Semester: " + currentTerm + " " + year;

        str += "\nCurrent Term: " + currentTerm;

        str += "\nCurrent Year: " + year;

        str += "\nNumber of Students: " + students.length;

        str += "\nNumber of Instructors: " + instructors.length;

        str += "\nNumber of Courses: " + courses.length;

        return str;

    }

}