package workforce;

import java.util.Scanner;


public class WorkForce {

    static class Person
    {
        String name;
        String email;
        int age;

        public Person(){}

        public Person(String name, String email, int age)
        {
            this.name = name;
            this.email = email;
            this.age = age;
        }

        public void Identify()
        {
            System.out.println("Name " + name);
            System.out.println("Email: " + email);
            System.out.println("Age: " + age);
        }

        public String getName()
        {
            return name;
        }

        public String getEmail()
        {
            return email;
        }

        public int getAge()
        {
            return age;
        }


    }

    interface Worker
    {
        int getSalary();
    }

    interface AcademicInterest
    {
        String getInterest();
    }

    static class Student extends Person implements AcademicInterest
    {
        int avgrade;
        String interest;
        public Student(String name, String email, int age, int avgrade, String interest)
        {
            super(name, email, age);

            this.avgrade = avgrade;
            this.interest = interest;
        }

        @Override
        public String getInterest() {
            return interest;
        }

        public int getAvgrade()
        {
            return avgrade;
        }
    }

    static class Teacher extends Person implements Worker, AcademicInterest
    {

        int rating;
        int salary;
        String interest;

         public Teacher(String name, String email, int age, int rating, int salary, String interest)
        {
            super(name, email, age);

            this.interest = interest;
            this.rating = rating;
            this.salary = salary;
        }

        int getRating()
         {
             return rating;
         }

        @Override
        public int getSalary() {
            return salary;
        }


        @Override
        public String getInterest() {
            return interest;
        }

        @Override
        public void Identify()
        {
            System.out.println("Name " + name);
            System.out.println("Email: " + email);
            System.out.println("Age: " + age);
            System.out.println("S/He is a teacher.");
        }

    }

    static class Plummer extends Person implements Worker
    {

        int salary;

        public Plummer(String name, String email, int age, int salary)
        {
            super(name, email, age);
            this.salary =salary;
        }

        @Override
        public int getSalary() {
            return salary;
        }

        @Override
        public void Identify()
        {
            System.out.println("Name " + name);
            System.out.println("Email: " + email);
            System.out.println("Age: " + age);
            System.out.println("S/He is a plummer.");
        }

    }

    static void Menu()
    {
        System.out.println("Choose an option <enter its index>");
        System.out.println("1: Identify all workers with salary under 50k");
        System.out.println("2: Identify all Teachers with rating lesser than 8");
        System.out.println("3: Count people with the same academic interest");
        System.out.println("4: Group students and teachers that share the same academic interest and have average grade and rating lesser then 8");

    }


    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);

        Person ppl[] = new Person[10];

        ppl[0] = new Person("Dan", "mit@gmail.com", 38);
        ppl[1] = new Plummer("John", "john@gmail.com", 48, 15000);
        ppl[2] = new Student("Jacob", "jacob@gmail.com", 24, 6, "Java");
        ppl[3] = new Student("Ian", "ian@gmail.com", 22, 8, "Java");
        ppl[4] = new Student("Coolio", "coolio@gmail.com", 25, 9, "Managment");
        ppl[5] = new Student("Mark", "Mark@gmail.com", 23, 8, "Java");
        ppl[6] = new Teacher("Fran", "fran@gmail.com", 48, 9, 80000, "Java");
        ppl[7] = new Teacher("Richie", "richie@gmail.com", 52, 8, 49900, "Java");
        ppl[8] = new Teacher("Roger", "roger@gmail.com", 39, 8, 70000, "Managment");
        ppl[9] = new Teacher("Homer", "homer@gmail.com", 42, 6, 40000, "Managment");

        int exit= 0;
        int choice = 0;
        for(;;)
        {
            if(exit != 0)
            {
                System.out.println("Do you like to list more? <1 - yes 2 - no");
                choice = s.nextInt();
                if (choice == 2)
                    break;
            }

            Menu();

            choice = s.nextInt();
            if(choice == 1)
            {
                for(int i = 0; i < 10; i++)
                    {
                        if(ppl[i].isInstance(Plummer) || ppl[i].isInstance(Teacher))
                        {
                            if(ppl[i].getSalary < 50000)
                            ppl[i].Identify();
                        }
                    }
            }

            if( choice == 2)
            {
                for(int i = 0; i < 10; i++)
                    {
                        if(ppl[i].isInstance(Teacher))
                        {
                            if(ppl[i].getRating < 😎
                            ppl[i].Identify();
                        }
                    }
            }

            if(choice == 3)
            {
                int countJ = 0, countM = 0, countF = 0;
                for(int i = 0; i < 10; i++)
                {
                    if(ppl[i].getInterest() == 'Java')
                    {
                        countJ++;
                    }

                    if(ppl[i].getInterest() == 'Managment')
                    {
                        countM++;
                    }

                    if(ppl[i].getInterest() == 'Finance')
                    {
                        countF++;
                    }

                }

                System.out.println("Java: " + countJ);
                System.out.println("Managment: " + countM);
                System.out.println("Finance: " + countF);
            }

            if(choice == 4)
            {
                System.out.println("Teachers and Student with interest java and below 8");
                for(int i = 0; i < 9; i++)
                {
                    if(ppl[i].isInstanceof(Teacher) && ppl[i].getRating < 8 && ppl[i].getInterest() == 'Java')
                    {
                        ppl[i].Identify();
                    }

                    if(ppl[i].isInstance(Student) && ppl[i].getAvgrade < 8 && ppl[i].getInterest() == 'Java')
                    {
                        ppl[i].Identify();
                    }
                }

                System.out.println("Teachers and Student with interest managment and below 8");
                for(int i = 0; i < 9; i++)
                {
                    if(ppl[i].isInstance(Teacher) && ppl[i].getRating < 8 && ppl[i].getInterest() == 'Managment')
                    {
                        ppl[i].Identify();
                    }

                    if(ppl[i].isInstance(Student) && ppl[i].getAvgrade < 8 && ppl[i].getInterest() == 'Managment')
                    {
                        ppl[i].Identify();
                    }
                }

                System.out.println("Teachers and Student with interest finance and below 8");
                for(int i = 0; i < 9; i++)
                {
                    if(ppl[i].isInstance(Teacher) && ppl[i].getRating < 8 && ppl[i].getInterest() == 'Finance')
                    {
                        ppl[i].Identify();
                    }

                    if(ppl[i].isInstance(Student) && ppl[i].getAvgrade < 8 && ppl[i].getInterest() == 'Finance')
                    {
                        ppl[i].Identify();
                    }
                }

            }

            exit = 1;
        }

    }
}