module BootstrapForm::Inputs::CheckBox

def check_box_classes(name, options)
  classes = Array(options[:class]) << "form-check-input"
  classes << "is-invalid" if error?(name)
  classes << "position-static" if options[:skip_label] || options[:hide_label]
  classes.flatten.compact
end

def check_box_description(name, options, &block)
  content = block ? capture(&block) : options[:label]
  content || object&.class&.human_attribute_name(name) || name.to_s.humanize
end

def check_box_label(name, options, checked_value, &block)
  label_name = if options[:multiple]
                 check_box_value(name, checked_value)
               else
                 name
               end
  label_options = { class: check_box_label_class(options) }
  label_options[:for] = options[:id] if options[:id].present?
  label(label_name, check_box_description(name, options, &block), label_options)
end

def check_box_label_class(options)
  classes = ["form-check-label"]
  classes << options[:label_class]
  classes << "required" if options[:required]
  classes << hide_class if options[:hide_label]
  classes.flatten.compact
end

def check_box_options(name, options)
  check_box_options = options.except(:class, :label, :label_class, :error_message, :help,
                                     :inline, :hide_label, :skip_label, :wrapper, :wrapper_class, :switch)
  check_box_options[:class] = check_box_classes(name, options)
  check_box_options.merge!(required_field_options(options, name))
end

def check_box_value(name, value)
  # label's `for` attribute needs to match checkbox tag's id,
  # IE sanitized value, IE
  # https://github.com/rails/rails/blob/5-0-stable/actionview/lib/action_view/helpers/tags/base.rb#L123-L125
  "#{name}_#{value.to_s.gsub(/\s/, '_').gsub(/[^-[[:word:]]]/, '').mb_chars.downcase}"
end

def check_box_with_bootstrap(name, options={}, checked_value="1", unchecked_value="0", &block)
  options = options.symbolize_keys!
  tag.div(class: check_box_wrapper_class(options), **options[:wrapper].to_h.except(:class)) do
    html = check_box_without_bootstrap(name, check_box_options(name, options), checked_value, unchecked_value)
    html << check_box_label(name, options, checked_value, &block) unless options[:skip_label]
    html << generate_error(name) if options[:error_message]
    html
  end
end

def check_box_wrapper_class(options)
  classes = ["form-check"]
  classes << "form-check-inline" if layout_inline?(options[:inline])
  classes << "mb-3" unless options[:multiple] || layout == :horizontal
  classes << "form-switch" if options[:switch]
  classes << options.dig(:wrapper, :class).presence
  classes << options[:wrapper_class].presence
  classes.flatten.compact
end

def checkbox_required(options, method)
  if options[:skip_required]
    warn "`:skip_required` is deprecated, use `:required: false` instead"
    false
  elsif options.key?(:required)
    options[:required]
  else
    required_attribute?(object, method)
  end
end