henryaj/Maker-Spark-Server

require 'bcrypt'

class User 

    include DataMapper::Resource

    attr_reader       :password
    attr_accessor     :password_confirmation

    property :id,                       Serial
    property :email,                    String
    property :github_user,            String        
    property :rfid_code,        String
    property :password_digest,  Text

    has n, :UserMessages
    
    validates_format_of       :email, as: :email_address
    validates_uniqueness_of   :email, :github_user
    validates_confirmation_of :password
    validates_presence_of     :email, :github_user 
    validates_length_of       :password, min: 1
    validates_length_of       :password_confirmation, min: 1
    validates_with_method     :github_user, :method => :check_for_github_existence

    def password=(password)
        @password = password
        self.password_digest = BCrypt::Password.create(password)
    end

    def self.authenticate(email, password)
        user = first(email: email)
        if user && BCrypt::Password.new(user.password_digest) == password 
            user
        else
            nil
        end
    end

    def check_for_github_existence
        uri = URI.parse("https://github.com/users/#{self.github_user}/contributions")
        response = Net::HTTP.get_response(uri)

        if response.code == "200"
            return true
        else 
            [ false, "This github user doesn't exist"]
        end

    end

    def destroy_all_user_messages
        self.UserMessages.all.destroy
    end

end