class GroupsController < ApplicationController
  include GroupsHelper
  before_action :require_admin!, only: [:index]
  before_action :require_membership!, only: [:show]
  before_action :require_leader!, only: [:edit, :update, :destroy]
  before_action :set_group, only: [:show, :edit, :update, :destroy]

  # GET /groups
  # GET /groups.json
  def index
    @groups = Group.all
  end

  def user_groups
    @groups = current_person.groups
  end

  # GET /groups/1
  # GET /groups/1.json
  def show
  end

  # GET /groups/new
  def new
    @group = Group.new
  end

  # GET /groups/1/edit
  def edit
  end

  # POST /groups
  # POST /groups.json
  def create
    @group = Group.new(group_params)

    respond_to do |format|
      if @group.save
        format.html {
          redirect_to @group
          flash_message(:info, 'Group was successfully created.')
        }
        format.json { render :show, status: :created, location: @group }
      else
        format.html { render :new }
        format.json { render json: @group.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /groups/1
  # PATCH/PUT /groups/1.json
  def update
    respond_to do |format|
      if @group.update(group_params)
        format.html {
          redirect_to @group
          flash_message(:info, 'Group was successfully updated.')
        }
        format.json { render :show, status: :ok, location: @group }
      else
        format.html { render :edit }
        format.json { render json: @group.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /groups/1
  # DELETE /groups/1.json
  def destroy
    @group.destroy
    respond_to do |format|
      format.html {
        redirect_to groups_url
        flash_message(:info, 'Group was successfully destroyed.')
      }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_group
      @group = Group.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def group_params
      params.require(:group).permit(:name)
    end
end