dianhua1560/bhgh

class Brag < ActiveRecord::Base
    validate :subject_and_author_are_emails
    validates :title, :presence => true
    validates :body, :presence => true
    has_attached_file :avatar
    validates_attachment_content_type :avatar, :content_type => ["image/jpg", "image/jpeg", "image/png", "image/gif"]

    def num_clicks
        Click.where(path: "/brags/click/#{self.id}").length
    end

    def num_likes
        return 0
    end

    def self.list(myEmail)
        Brag.order('created_at desc').all.map{|x| x.tojson(myEmail)}.to_json
    end

    def tojson(myEmail)
        {
            title: self.title,
            time: self.created_at,
            photos: self.photos,
            photo_url: self.avatar.exists? ? self.avatar.url : '',
            author: self.author,
            type: 'brag',
            created_at: self.created_at,
            subject: self.subject,
            gravatar: self.gravatar,
            id: self.id,
            body: self.body,
            time_string: self.time_string,
            liked: BragLike.where(email: myEmail).where(brag_id: self.id).length > 0,
            can_edit: Member.is_admin_email(myEmail)
        }
    end

    def sort_time
        return self.created_at
    end


    def time_string
        self.created_at ? self.created_at.strftime('%B %d, %Y') : ''
    end


    def gravatar
        email = self.author ? self.author : 'asdf@gmail.com'
        gravatar_id = Digest::MD5.hexdigest(email.downcase)
        return "http://gravatar.com/avatar/#{gravatar_id}.png"
    end

    def subject_and_author_are_emails
        if not is_email(subject)
            errors.add(:subject, "must be a valid email address")
        end
        if not is_email(author)
            errors.add(:author, "must be a valid email address")
        end
    end

    def photos
        []
    end

    def is_email(string)
        Member.is_email(string)
    end

end