module RailsApiPaginate

# File lib/rails_api_paginate.rb, line 6
def self.setup
  yield self
end

# File lib/rails_api_paginate.rb, line 10
def paginate(collection)
  current_page = (params[:page].to_i)
  current_page = 1 if current_page < 1

  per_page = params[:per_page].to_i
  per_page = default_per_page if per_page < 1 || per_page > max_per_page

  total_items = collection.count
  total_pages = (total_items.to_f / per_page).ceil

  next_page = current_page + 1 if current_page < total_pages
  prev_page = current_page - 1 if current_page > 1 && current_page < total_pages

  records = collection.limit(per_page).offset(per_page * (current_page - 1))

  return records, {
    current_page: current_page,
    next_page: next_page,
    prev_page: prev_page,
    total_pages: total_pages,
    total_items: total_items
  }
end