class MembersController < ApplicationController
  load_and_authorize_resource

  skip_authorize_resource only: [:nearby, :unsubscribe, :finish_signup]

  after_action :expire_cache_fragments, only: :create

  def index
    @sort = params[:sort]
    @members = if @sort == 'recently_joined'
                 Member.confirmed.recently_joined.paginate(page: params[:page])
               else
                 Member.confirmed.paginate(page: params[:page])
               end

    respond_to do |format|
      format.html # index.html.haml
      format.json {
        render json: @members.to_json(only: [
                                        :id, :login_name, :slug, :bio, :created_at, :location, :latitude, :longitude
                                      ])
      }
    end
  end

  def show
    @member        = Member.confirmed.find(params[:id])
    @twitter_auth  = @member.auth('twitter')
    @flickr_auth   = @member.auth('flickr')
    @facebook_auth = @member.auth('facebook')
    @posts         = @member.posts
    # The garden form partial is called from the "New Garden" tab;
    # it requires a garden to be passed in @garden.
    # The new garden is not persisted unless Garden#save is called.
    @garden = Garden.new

    respond_to do |format|
      format.html # show.html.haml
      format.json {
        render json: @member.to_json(only: [
                                       :id, :login_name, :bio, :created_at, :slug, :location, :latitude, :longitude
                                     ])
      }
      format.rss { render(
        layout: false,
        locals: { member: @member }
      )}
    end
  end

  def view_follows
    @member = Member.confirmed.find(params[:login_name])
    @follows = @member.followed.paginate(page: params[:page])
  end

  def view_followers
    @member = Member.confirmed.find(params[:login_name])
    @followers = @member.followers.paginate(page: params[:page])
  end

  EMAIL_TYPE_STRING = {
    send_notification_email: "direct message notifications",
    send_planting_reminder: "planting reminders"
  }

  def unsubscribe
    begin
      verifier = ActiveSupport::MessageVerifier.new(ENV['RAILS_SECRET_TOKEN'])
      decrypted_message = verifier.verify(params[:message])

      @member = Member.find(decrypted_message[:member_id])
      @type = decrypted_message[:type]
      @member.update(@type => false)

      flash.now[:notice] = "You have been unsubscribed from #{EMAIL_TYPE_STRING[@type]} emails."

    rescue ActiveSupport::MessageVerifier::InvalidSignature
      flash.now[:alert] = "We're sorry, there was an error updating your settings."
    end
  end

  def finish_signup
    @member = current_member
    if request.patch? && params[:member]
      if @member.update(member_params)
        @member.skip_reconfirmation!
        bypass_sign_in(@member)
        redirect_to root_path, notice: 'Welcome.'
      else
        flash[:alert] = 'Failed to complete signup'
        @show_errors = true
      end
    end
  end

  private

  def expire_cache_fragments
    expire_fragment("homepage_stats")
  end

  def member_params
    params.require(:member).permit(:login_name, :tos_agreement, :email, :newsletter)
  end
end