class UsersController < ApplicationController

    before_action :user_set, only: [:show, :edit, :update, :destroy]
    after_action :notify, only: [:create, :update. :destroy]

  def index
    @users = User.all
  end

  def show
  end

  def new
    @user = User.new
  end

  def notify
    Slack.notify_channel
  end

  def edit
  end

  def create
    @user = User.new(user_params)

    respond_to do |format|
      if @user.save
        format.html { redirect_to @user, notice: 'User was successfully created.' }
        format.json { render :show, status: :created, location: @user }
      else
        format.html { render :new }
        format.json { render json: @user.errors, status: :unprocessable_entity }
      end
    end

  end

  def update

    respond_to do |format|
      if @user.update(user_params)
        format.html { redirect_to @user, notice: 'User was successfully updated.' }
        format.json { render :show, status: :ok, location: @user }
      else
        format.html { render :edit }
        format.json { render json: @user.errors, status: :unprocessable_entity }
      end
    end

  end

  def destroy

    @user.destroy
    respond_to do |format|
      format.html { redirect_to users_url, notice: 'User was successfully destroyed.' }
      format.json { head :no_content }
    end

  end

  private

  def user_set
    @user = User.find(params[:id])
  end

    def user_params
      params.require(:user).permit(:username, :email)
    end
end