class LibrariesController < ApplicationController
  before_action :get_library, except: [:index, :new, :create, :preview]
  skip_after_action :verify_policy_scoped, only: [:index]
  skip_before_action :set_up_first_library, only: [:new, :create]

  def index
    redirect_to new_library_path and return if Library.all.empty? # rubocop:disable Pundit/UsePolicyScope
    render layout: "settings"
  end

  def show
    redirect_to models_path(library: @library)
  end

  def new
    authorize Library
    @library = Library.new
    @title = t("libraries.general.new")
  end

  def edit
  end

  def create
    authorize Library
    @library = Library.create(library_params)
    @library.tag_regex = params[:tag_regex]
    if @library.valid?
      @library.detect_filesystem_changes_later
      @library.make_default if SiteSettings.default_library.nil?
      redirect_to @library, notice: t(".success")
    else
      flash.now[:alert] = t(".failure")
      render :new, status: :unprocessable_content
    end
  end

  def update
    @library.update(library_params)
    uptags = library_params[:tag_regex]&.reject(&:empty?)
    @library.tag_regex = uptags
    if @library.save
      @library.make_default if params.dig("library", "default") == "1"
      redirect_to settings_libraries_path, notice: t(".success")
    else
      flash.now[:alert] = t(".failure")
      render :edit, status: :unprocessable_content
    end
  end

  def destroy
    begin
      @library.destroy
      Library.first&.make_default if @library.default?
    rescue Shrine::Error # Not ideal, but file after_commit callbacks explode if the library has gone
      nil
    end
    redirect_to settings_libraries_path, notice: t(".success")
  end

  def preview
    # Create temporary library; we're not saving it
    @library = params[:id] ? Library.find_param(params[:id]) : Library.new(path: params[:path])
    @library.path_template = params[:template]
    @library.parse_metadata_from_path = (params[:enabled] === "true")
    authorize @library
    render Components::PathTemplatePreview.new(library: @library), layout: nil
  end

  private

  def library_params
    params.expect(library: [
      :path, # i18n-tasks-use t("activerecord.attributes.library.path")
      :create_path_if_not_on_disk, # i18n-tasks-use t("activerecord.attributes.library.create_path_if_not_on_disk")
      :name, # i18n-tasks-use t("activerecord.attributes.library.name")
      :notes, # i18n-tasks-use t("activerecord.attributes.library.notes")
      :caption, # i18n-tasks-use t("activerecord.attributes.library.caption")
      :icon, # i18n-tasks-use t("activerecord.attributes.library.icon")
      {tag_regex: []}, # i18n-tasks-use t("activerecord.attributes.library.tag_regex")
      :storage_service, # i18n-tasks-use t("activerecord.attributes.library.storage_service")
      :s3_endpoint, # i18n-tasks-use t("activerecord.attributes.library.s3_endpoint")
      :s3_bucket, # i18n-tasks-use t("activerecord.attributes.library.s3_bucket")
      :s3_region, # i18n-tasks-use t("activerecord.attributes.library.s3_region")
      :s3_access_key_id, # i18n-tasks-use t("activerecord.attributes.library.s3_access_key_id")
      :s3_secret_access_key, # i18n-tasks-use t("activerecord.attributes.library.s3_secret_access_key")
      :s3_path_style, # i18n-tasks-use t("activerecord.attributes.library.s3_path_style")
      :path_template, # i18n-tasks-use t("activerecord.attributes.library.path_template")
      :parse_metadata_from_path, # i18n-tasks-use t("activerecord.attributes.library.parse_metadata_from_path")
      :safe_folder_names # i18n-tasks-use t("activerecord.attributes.library.safe_folder_names")
    ])
  end

  def get_library
    @library = Library.find_param(params[:id])
    authorize @library
    @title = @library.name
  end
end