class PasswordResetsController < ApplicationController
  before_action :get_user,
                :valid_user,
                :check_expiration,
                only: %i[edit update]

  def new
  end

  def create
    if (@user = User.find_by(email: params[:password_reset][:email].downcase))
      @user.create_reset_digest
      @user.send_password_reset_email
      flash[:info] = "Email sent with password reset instructions"
      redirect_to root_url
    else
      flash.now[:danger] = "Email address not found"
      render 'new'
    end
  end

  def edit
  end

  def update
    if params[:user][:password].empty?
      @user.errors.add(:password, "can't be empty")
      render :edit
    elsif @user.update_attributes(user_params)
      log_in @user
      @user.update_attribute(:reset_digest, nil)
      flash[:success] = "Password has been reset."
      redirect_to @user
    else
      render :edit  # failed update due to an invalid password
    end
  end

  private
    def user_params
      params.require(:user).permit(:password, :password_confirmation)
    end

    def get_user
      @user = User.find_by_email(params[:email])
    end

    def valid_user
      unless (@user&.activated? && @user.authenticated?(:reset, params[:id]))
        redirect_to root_url
      end
    end

    def check_expiration
      if @user.password_reset_expired?
        flash[:danger] = "Password reset has expired."
        redirect_to new_password_reset_url
      end
    end
end
