publiclab/mapknitter

class TagsController < ApplicationController
  before_action :require_login, only: %i(edit update destroy)

  def create
    @map = Map.find_by(slug: params[:map_id])
    if logged_in?
      save_tags(@map)
      redirect_to(@map)
    else
      flash[:error] = 'You must be logged in to add tags'
      redirect_to("/login?back_to=/maps/#{@map.slug}")
    end
  end

  def show
    @tag = Tag.find_by_name(params[:id])
    @maps = @tag.maps.paginate(page: params[:page], per_page: 24)
    @title = "Maps tagged with ' #{@tag.name} '"
    tag = Tag.where(name: 'featured').first # NOTE: that this is not a join table but the .maps method still works
    @unpaginated = true
    @authors = User.where(login: tag.maps.collect(&:author), status: User::Status::NORMAL) if tag
    @authors ||= []
    render(template: 'tags/index')
  end

  def destroy
    @tag = Tag.find(params[:id])

    if logged_in? && current_user.can_delete?(@tag)
      @tag.delete
      flash[:notice] = "Tag #{@tag.name} deleted."
      redirect_to(@tag.map)
    else
      flash[:error] = 'You must be logged in to delete tags.'
      redirect_to('/login')
    end
  end

  private

  def tag_params
    params.require(:tag).permit(:name)
  end
end