@startuml
skinparam classAttributeIconSize 0

User <|-- Account
User <|-- Student
User <|-- Parent

User -- PasswordReset

Student -- Parent
Student -- Test
Student -- Class

Account -- Class
Account -- TestTemplate

Class -- Subject
Class -- Test

TestTemplate -- Test
TestTemplate -- Class

Test -- TestResult

TestResult -- Student

class User {
	id: string
	firstName: string
	otherNames: string
	lastName: string
	email: string
	password: string
	type: string
	getfullName(): string
	verifyPassword(hash): boolean
	changePassword(password): void
	getPasswordReset(): PasswordReset
	generatePasswordReset(): PasswordReset
	{static} hashPassword(password): string
	{static} createUser(...): Account|Student|Parent
	{static} getUserByEmail(...): Account|Student|Parent
}

class Account {
	getClasses(): Class[]
	getTests(): TestTemplate[]
	createTestTemplate(...): TestTemplate
	createClass(...): Class
}

class Student {
	getClasses(): Class[]
	getTests(): Test[]
	getParents(): Parent[]
}

class Parent {
	getChildren(): Student[]
}

class PasswordReset {
	userId: string
	token: string
	nonce: string
	expires: Date
	getUser(): User
	{static} hashToken(): {string, string}
	{static} generatePasswordReset(): PasswordReset
}

class Subject {
	subjectId: int
	name: string
}

class Class {
	classId: string
	subjectId: int
	name: string
	getSubject(): Subject
	getTests(): Test[]
	getTeachers(): Account[]
	getTeacher(): Teacher
	getStudents(): Student[]
	getStudent(): Student
	addTeacher(): void
	removeTeacher(): void
	addStudent(): void
	removeStudent(): void
	isAuthorised(User): boolean
	calculateAverageMovement(): int
	{static} createClass(): Class
}

class TestTemplate {
	testTemplateId: string
	accountId: string
	name: string
	maxMark: int
	assignClass(): Test
	getClasses(): Class[]
	isAuthorised(User): boolean
	{static} createTestTemplate(): TestTemplate
}

class Test {
	testId: string
	testTemplateId: string
	classId: string
	testDate: Date
	getClass(): Class
	getStudent(): TestResult
	getStudents(): TestResult[]
	getTestTemplate(): TestTemplate
	calculateAverageScore(): int
	calculateGradeBoundaries(): Object
}

class TestResult {
	studentId: string
	accountId: string
	testId: string
	setMark(): void
	getMark(): int
	getPercentage(): int
	getGrade(): string
	getStudent(): Student
	getTest(): Test
}

@enduml