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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | /**
* User Domain Model
* Pure domain entity with business logic validation
*/
class User {
constructor(id, name, email, password, createdAt, updatedAt) {
this.id = id;
this.name = name;
this.email = email;
this.password = password;
this.createdAt = createdAt;
this.updatedAt = updatedAt;
}
/**
* Factory method to create a new User
* @param {Object} data - { name, email, password }
* @returns {User}
*/
static create(data) {
const { name, email, password } = data;
// Validation
if (!name || name.trim().length === 0) {
throw new Error('User name is required');
}
if (!email || !User.isValidEmail(email)) {
throw new Error('Valid email is required');
}
if (!password || password.length < 6) {
throw new Error('Password must be at least 6 characters long');
}
return new User(null, name.trim(), email.toLowerCase(), password, new Date(), new Date());
}
/**
* Email validation
* @param {string} email
* @returns {boolean}
*/
static isValidEmail(email) {
const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
return emailRegex.test(email);
}
/**
* Update user name
* @param {string} newName
*/
updateName(newName) {
if (!newName || newName.trim().length === 0) {
throw new Error('User name is required');
}
this.name = newName.trim();
this.updatedAt = new Date();
}
/**
* Get user without sensitive data
* @returns {Object}
*/
toPublicJSON() {
return {
id: this.id,
name: this.name,
email: this.email,
createdAt: this.createdAt,
updatedAt: this.updatedAt
};
}
}
module.exports = User;
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