require 'bcrypt'

class User < ActiveRecord::Base
  has_many :posts
  has_many :sessions
  
  validates_presence_of :username
  validates_presence_of :password_hash
  
  def hash(password)
    BCrypt::Password.create(password)
  end
  
  def authenticate(password)
    BCrypt::Password.new(@password) == password
  end
end

class CreateUserTable < ActiveRecord::Migration[6.0]
  def change
    create_table :users do |t|
      t.string :name
      t.string :username, null: false, unique: true, index: true
      t.string :password_hash, null: false
      t.timestamps
    end
  end
end