module Formstrap
  class FlatpickrRangeView < ViewModel
    include Formstrap::Hintable
    include Formstrap::InputGroupable
    include Formstrap::Labelable
    include Formstrap::Listable
    include Formstrap::Placeholderable
    include Formstrap::Validatable
    include Formstrap::Wrappable

    def attribute
      @attribute || :period
    end

    def start_attribute
      @start.dig(:attribute) || :start_date
    end

    def end_attribute
      @end.dig(:attribute) || :end_date
    end

    def start_options
      default_start_options.deep_merge(@start || {})
    end

    def end_options
      default_end_options.deep_merge(@end || {})
    end

    def input_options
      keys = attributes - %i[append attribute end float form input_group label prepend start validate wrapper]
      options = to_h.slice(*keys)
      default_input_options.deep_merge(options)
    end

    def input_group_options
      default_input_group_options
        .deep_merge(label_input_group_options)
        .deep_merge(@input_group || {})
    end

    def wrapper_options
      default_wrapper_options.deep_merge({
        class: ["mb-3", ("form-floating" if float)]
      }).deep_merge(@wrapper || {})
    end

    private

    def default_options
      {
        name: nil
      }
    end

    def default_start_options
      {}
    end

    def default_end_options
      {}
    end

    def default_input_options
      {
        aria: {describedby: validation_id},
        class: [form_control_class, validation_class],
        placeholder: placeholder,
        name: nil,
        data: {
          controller: "flatpickr date-range",
          action: "change->date-range#update",
          flatpickr: {
            mode: "range",
            defaultDate: [
              form.object&.send(start_attribute)&.strftime("%d/%m/%Y"),
              form.object&.send(end_attribute)&.strftime("%d/%m/%Y")
            ]
          }
        }
      }
    end

    def form_control_class
      plaintext ? "form-control-plaintext" : "form-control"
    end
  end
end