publiclab/spectral-workbench

# frozen_string_literal: true

class LikesController < ApplicationController
  before_action :require_login, only: %i(toggle delete)

  def index
    @spectrums = Spectrum.select('title, created_at, id, user_id, author, photo_file_name, like_count, photo_content_type').order('like_count DESC').where('user_id != 0').paginate(page: params[:page], per_page: 24)
  end

  # recently liked
  def recent
    @spectrums = Spectrum.select('title, created_at, id, user_id, author, photo_file_name, like_count, photo_content_type').order('created_at DESC').where('like_count > 0').where('user_id != 0').page(params[:page])
    render template: 'likes/index'
  end

  # Adds a like to spectrum from current_user
  # as: /likes/toggle/:id where params[:id] is spectrum_id
  def toggle
    @spectrum = Spectrum.find params[:id]
    if @spectrum.liked_by(current_user.id)
      Like.where(user_id: current_user.id, spectrum_id: @spectrum.id).delete
      render plain: 'unliked'
    else
      @like = Like.new(user_id: current_user.id, spectrum_id: params[:id])
      if @like.save
        render html: @spectrum.likes.length
      else
        render plain: 'error'
      end
    end
  end

  def delete
    @like = Like.find(params[:id])
    @like.delete if @like.user_id == current_user.id || current_user.role == 'admin'
    redirect_to spectrum_path(@like.spectrum_id.to_s) if params[:index] != 'true'
  end
end