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"color:#7c6fff">import { sign, verify } "color:#7c6fff">from 'jsonwebtoken'
"color:#7c6fff">import { hash, compare } "color:#7c6fff">from 'bcryptjs'
"color:#7c6fff">import { db } "color:#7c6fff">from './database'

"color:#7c6fff">export "color:#7c6fff">class AuthService {
  "color:#7c6fff">private secret = process.env.JWT_SECRET!

  "color:#7c6fff">async register(email: string, password: string) {
    "color:#7c6fff">const existing = "color:#7c6fff">await db.users.findOne({ email })
    "color:#7c6fff">if (existing) "color:#7c6fff">throw "color:#7c6fff">new Error('Email already in use')
    
    "color:#7c6fff">const hashed = "color:#7c6fff">await hash(password, 12)
    "color:#7c6fff">const user = "color:#7c6fff">await db.users.create({ email, password: hashed })
    
    "color:#7c6fff">return this.generateTokens(user.id)
  }

  "color:#7c6fff">async login(email: string, password: string) {
    "color:#7c6fff">const user = "color:#7c6fff">await db.users.findOne({ email })
    "color:#7c6fff">if (!user) "color:#7c6fff">throw "color:#7c6fff">new Error('Invalid credentials')
    
    "color:#7c6fff">const valid = "color:#7c6fff">await compare(password, user.password)
    "color:#7c6fff">if (!valid) "color:#7c6fff">throw "color:#7c6fff">new Error('Invalid credentials')
    
    "color:#7c6fff">return this.generateTokens(user.id)
  }

  "color:#7c6fff">private generateTokens(userId: string) {
    "color:#7c6fff">const access = sign({ userId }, this.secret, { expiresIn: '15m' })
    "color:#7c6fff">const refresh = sign({ userId }, this.secret, { expiresIn: '7d' })
    "color:#7c6fff">return { access, refresh }
  }
}