gem 'hotwire_datatables'

class BooksTable < HotwireDatatables::Table
  query_adapter :active_record # it's the default, usually unnecessary, just for completeness
  pagination_adapter :pagy # can be extended later for custom pagination
  # The base query is supplied by the controller
  # and is enhanced here for suitability to the needs of the table
  query ->(records, _params) do
    records.joins(:authors) # for sorting
           .includes(:authors) # for quick access when rendering author names
           .distinct
  end

  column :title do
    sortable
  end

  column :author_names do
    sortable
    source_expression 'authors.name'
    format_with { |book| book.authors.pluck(:name).join(', ') }
  end

  column :actions do
    # This is a column not based on any attribute.
    # 
    # If the model supports `ActiveModel::Naming`, the renderer can assign a variable
    # with a proper name. In this instance, the variable will be called `@book`.
    # Otherwise it will just be called `@row`
    # 
    # You can either specify `partial`, `view_component` or `lambda` to
    # render virtual cells.
    virtual partial: 'books/row_actions'
  end
end

class BooksController < ApplicationController
  include HotwireDatatables::Controller

  def index
    books = Book.all
    @books_table = BooksTable.new(request, books)
  end

  # A custom action that marks the book as read and updates the table via Turbo
  def mark_read
    book = Book.find(params[:id])
    book.update_attribute(:status, 'read')

    render turbo_stream: table_turbo_stream(BooksTable).update(book)
  end
end