---

type Subject = {
  id: number;
  title: string;
};
type Role = "TEACHER" | "STUDENT";

type User = {
  id: number;
  title: string;
  age: number;
  subjects: Subject[];
  role?: Role;
};


const users: User[] = [
  { id: 1, title: "t1", age: 12, subjects: [{ id: 1, title: "12" }], role:"STUDENT" },
  { id: 8, title: "t2", age: 22, subjects: [{ id: 2, title: "22" }] , role:"TEACHER"},
  { id: 3, title: "t3", age: 32, subjects: [{ id: 3, title: "32" }] , role:"STUDENT"},
  { id: 4, title: "t3", age: 32, subjects: [{ id: 3, title: "32" }] , role:"TEACHER"},
  { id: 5, title: "t3", age: 32, subjects: [{ id: 3, title: "32" }] , role:"STUDENT"},
  { id: 6, title: "t3", age: 32, subjects: [{ id: 3, title: "32" }] , role:"STUDENT"},
  { id: 7, title: "t3", age: 32, subjects: [{ id: 3, title: "32" }] , role:"TEACHER"},
  { id: 2, title: "t3", age: 32, subjects: [{ id: 3, title: "32" }] , role:"STUDENT"},
  { id: 9, title: "t3", age: 32, subjects: [{ id: 3, title: "32" }] , role:"STUDENT"},
  { id: 10, title: "t3", age: 32, subjects: [{ id: 3, title: "32" }] , role:"TEACHER"},
];

// type College = {
//   id: number;
//   title: string;
//   students: User[];
//   teachers: User[];
// };

// const college: College[] = [
//   {
//     id: 1,
//     title: "t1",
//     students: [{ id: 1, title: "t1", age: 12, subjects:users.filter(item => item.role == "STUDENT") }],
//     teachers: [{ id: 2, title: "t2", age: 22, subjects:users.filter(item => item.role == "TEACHER") }],
//   },
// ];
// console.log(college);


class College{
    id:number;
    title:string;
    students: User[] = [];
    teachers :User[]=[];

    constructor(id:number,title:string){
        this.id = id;
        this.title = title;
    }

    findUserById(id:number) : User | null{
        users.find((item => item.id==id));
        return users[id];
    }

    addStudent(user:User){
        this.students.push(user);
    }

    removeUserById(id:number):void{
        const index = users.findIndex(item => item.id == id);
        users.splice(index, 1)
    }

    clear():void {
        users.splice(0);
    }
}


const example = new College(564893, "example");
console.log(example.findUserById(1));
console.table(example.removeUserById(2));
console.table(users);
example.clear(); 





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