class User
	include Mongoid::Document

    embeds_many :accounts, cascade_callbacks: true
    accepts_nested_attributes_for :accounts

    index({ 'accounts.jid' => 1 })

    def update_pass(jid, pass)
        account_credentials = accounts.detect do |f|
            f[:jid] == jid || f['jid'] == jid
        end

        account_credentials[:pass] = pass
        save
    end

    def self.existing_jid(jid)
        where('accounts.jid' => jid).only(:accounts).first
    end

    def self.create_jid(jid)
        new_user = new()
        new_user.add_account(jid)
        new_user.save
        new_user
    end

    def add_account(another_jid, password = nil)
        accounts << Account.new(jid: another_jid, pass: password)
        save
    end

    def self.crendentials_for_token(token)
        user = find_by_token(token)
        return user ? user.accounts : []
    end

    def self.find_by_token(token)
        found = Token.where(token: token).only(:user_id).limit(1).first

        if found
            return find(found.user_id)
        else
            return nil
        end
    end

    def self.can_save_conversation(my_jid, friend_jid, chat_id = nil)
        if chat_id.blank?
            found = User.where('accounts.jid' => my_jid)
                        .elem_match('accounts.conversation_settings' => {jid: friend_jid, value: 0})
        else
            found = User.where('accounts.jid' => my_jid)
                        .elem_match('accounts.conversation_settings' => {chat_id: chat_id, value: 0})
        end

        found.first.nil?
    end
end