class DeviseTokenAuth::UnlocksController

def after_unlock_path_for(resource)
  #TODO: This should probably be a configuration option at the very least.
  '/'
end

def create
  return render_create_error_missing_email unless resource_params[:email]
  @email = get_case_insensitive_field_from_resource_params(:email)
  @resource = find_resource(:email, @email)
  if @resource
    yield @resource if block_given?
    @resource.send_unlock_instructions(
      email: @email,
      provider: 'email',
      client_config: params[:config_name]
    )
    if @resource.errors.empty?
      return render_create_success
    else
      render_create_error @resource.errors
    end
  else
    render_not_found_error
  end
end

def render_create_error(errors)
  render json: {
    success: false,
    errors: errors
  }, status: 400
end

def render_create_error_missing_email
  render_error(401, I18n.t('devise_token_auth.unlocks.missing_email'))
end

def render_create_success
  render json: {
    success: true,
    message: success_message('unlocks', @email)
  }
end

def render_not_found_error
  if Devise.paranoid
    render_error(404, I18n.t('devise_token_auth.unlocks.sended_paranoid'))
  else
    render_error(404, I18n.t('devise_token_auth.unlocks.user_not_found', email: @email))
  end
end

def render_show_error
  raise ActionController::RoutingError, 'Not Found'
end

def resource_params
  params.permit(:email, :unlock_token, :config)
end

def show
  @resource = resource_class.unlock_access_by_token(params[:unlock_token])
  if @resource.persisted?
    token = @resource.create_token
    @resource.save!
    yield @resource if block_given?
    redirect_header_options = { unlock: true }
    redirect_headers = build_redirect_headers(token.token,
                                              token.client,
                                              redirect_header_options)
    redirect_to(@resource.build_auth_url(after_unlock_path_for(@resource),
                                         redirect_headers))
  else
    render_show_error
  end
end