require 'differ'

class ModerationsController < ApplicationController
  before_filter :authenticate_user!
  before_action :set_moderation, only: [:show, :edit, :update, :validate, :accept, :refuse, :destroy]
  before_filter :set_mailer_host, only: [:update, :accept, :destroy]

  def index
    @events = Event.where moderated: 0
  end

  # PATCH/PUT /moderations/1
  # PATCH/PUT /moderations/1.json
  def update
    olderModeration = Event.new @event.attributes
    if params[:visu]
      @moderation.attributes = moderation_params
      render action: 'edit'
      return
    end

    respond_to do |format|
      if @moderation.update(moderation_params)
        # Send an update mail to moderators
        ModerationMailer.update(olderModeration, @moderation, current_user).deliver

        format.html { redirect_to moderations_path, notice: t('.ok') }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @moderation.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /accept/1
  # PATCH/PUT /accept/1.json
  def accept
    respond_to do |format|
      if @moderation.update(moderated: 1)
        # Send an acceptation mail to its author
        EventMailer.accept(@moderation, current_user).deliver

        # Send an acceptation mail to moderators
        ModerationMailer.accept(@moderation, current_user).deliver

        format.html { redirect_to moderations_path, notice: t('.ok') }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @moderation.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /events/1
  # DELETE /events/1.json
  def destroy
    if @moderation.destroy
      # Send a notification to its author
      if params[:reason] == 'r_4'
        @reason = params[:reason_text]
      else
        @reason = t("reason_#{params[:reason]}_long", scope: [:moderations, :refuse])
      end

      EventMailer.destroy(@moderation, current_user, @reason).deliver
      ModerationMailer.destroy(@moderation, current_user, @reason).deliver
    end
    respond_to do |format|
      format.html { redirect_to moderations_url, notice: t('.ok') }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_moderation
      @event = Event.find params[:id]
      @moderation = @event
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def moderation_params
      params.require(:event)
        .permit :title, :start_time, :end_time, :description, :city, :region, :locality, :url, :contact, :submitter, :tags
    end

    # Useful to manage absolute url in mails
    def set_mailer_host
      ActionMailer::Base.default_url_options[:host] = request.host_with_port
    end
end