module Guff
  class Results(R)
    getter :page
    getter :limit
    getter :num_rows
    getter :rows

    def initialize(
      @page     : Int32     = 1,
      @limit    : Int32     = 1,
      @num_rows : Int32     = 0,
      @rows     : Array(R)  = [] of R,
    )
    end

    def to_json
      { 
        meta: {
          page:       @page,
          limit:      @limit,
          num_pages:  (@num_rows / @limit).ceil,
          num_rows:   @num_rows,
        },

        rows: @rows,
      }.to_json
    end

    def size
      @num_rows
    end
  end
end