# frozen_string_literal: true

require "active_support/core_ext/time/calculations"

module ActionView
  module Helpers
    module Tags # :nodoc:
      class DateSelect < Base # :nodoc:
        def initialize(object_name, method_name, template_object, options, html_options)
          @html_options = html_options

          super(object_name, method_name, template_object, options)
        end

        def render
          error_wrapping(datetime_selector(@options, @html_options).send("select_#{select_type}").html_safe)
        end

        class << self
          def select_type
            @select_type ||= name.split("::").last.sub("Select", "").downcase
          end
        end

        private

          def select_type
            self.class.select_type
          end

          def datetime_selector(options, html_options)
            datetime = options.fetch(:selected) { value || default_datetime(options) }
            @auto_index ||= nil

            options = options.dup
            options[:field_name]           = @method_name
            options[:include_position]     = true
            options[:prefix]             ||= @object_name
            options[:index]                = @auto_index if @auto_index && !options.has_key?(:index)

            DateTimeSelector.new(datetime, options, html_options)
          end

          def default_datetime(options)
            return if options[:include_blank] || options[:prompt]

            case options[:default]
            when nil
              Time.current
            when Date, Time
              options[:default]
            else
              default = options[:default].dup

              # Rename :minute and :second to :min and :sec
              default[:min] ||= default[:minute]
              default[:sec] ||= default[:second]

              time = Time.current

              [:year, :month, :day, :hour, :min, :sec].each do |key|
                default[key] ||= time.send(key)
              end

              Time.utc(
                default[:year], default[:month], default[:day],
                default[:hour], default[:min], default[:sec]
              )
            end
          end
      end
    end
  end
end
