class ContactsController < ApplicationController

  before_filter :authenticate,            :except => 'create'
  before_filter :authenticate_with_admin, :except => 'create'

  def index
    @contacts = Contact.by_recent.paginate(:page => params[:page], :per_page => 35)
    switch_to_admin_layout
  end

  def show
    @contact = Contact.find(params[:id])
    switch_to_admin_layout
  end

  def create
    @contact = Contact.new(contact_params)
    saved = @contact.save
    sent_email = send_message_to_admin(@contact)

    if saved && sent_email == 'success'
      redirect_to root_path, notice: t("contacts.create.notice")
    elsif saved && sent_email == 'exception'
      flash[:error] = t("contacts.create.warning")
      redirect_to :back
    elsif saved && sent_email == 'invalid'
      flash[:error] =  "#{t("contacts.create.warning")} #{t('contacts.create.invalid_email')}"
      redirect_to :back
    else
      flash[:error] = t('contacts.create.did_not_reach')
      redirect_to :back
    end
  end

  def valid_email?(string)
    (!string.blank? && string =~ /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i) ? true : false
  end
  # helper_method :valid_email?

  private

  def send_message_to_admin(contact)
    # check email validity
    if valid_email?(contact.sender_email)
      # Actually send the email to the student
      begin
        ContactMailer.message_from_contact_form(contact).deliver
        return 'success'
      rescue Exception => e
        AdminMailer.rescued_exceptions(e, "Some exception occurred while trying to send to site admin a message from contact form").deliver
        @exception = e
        return 'exception'
      end
    else # for invalid or blank emails
      return 'invalid'
    end
  end

  # Never trust parameters from the scary internet, only allow the white list through.
  def contact_params
    params.require(:contact).permit(:sender_name, :sender_email, :body)
  end


end