/app/controllers/contacts_controller.rb

class ContactsController < ApplicationController
  before_action :set_contact, only: [:show, :edit, :update, :destroy, :share]
  skip_before_action :verify_authenticity_token, :only => [:import]

  def share
    # raise
    @contact.share(params[:email])
  end

  def import
    Contact.import(params[:file])
    redirect_to contacts_path
  end

  def index
    # @contacts = Contact.all
    
    @q = Contact.ransack(params[:q])
    @contacts = @q.result(distinct: true)
    respond_to do |format|
      format.html
      # format.csv { render text: @contacts.to_csv }
      format.csv { send_data @contacts.to_csv }
    end
  end



  def show
  end

  def new
    @contact = Contact.new
  end

  def edit
  end

  def create
    @contact = Contact.new(contact_params)
    # raise
    respond_to do |format|
      if @contact.save
        format.html { redirect_to @contact }
      else
        format.html { render :new }
      end
    end
  end

  def update
    respond_to do |format|
      if @contact.update(contact_params)
        format.html { redirect_to @contact } 
      else
        format.html { render :edit }
      end
    end
  end

  def destroy
    @contact.destroy
    respond_to do |format|
      format.html { redirect_to contacts_url }
      format.js 
    end
  end

  private
  def set_contact
    @contact = Contact.find(params[:id])
  end

  def contact_params
    params.require(:contact).permit(:first_name, :last_name, :email_string, :phone_string)
  end
end