# frozen_string_literal: true

module WikiHelper
  def command_usage(command_name, arguments: {}, only: nil)
    only = [:arguments, :placeholder] if only.nil?
    arguments = arguments.with_indifferent_access

    command = CommandDetail.where(command_name: command_name).first
    argument_html = []

    if only.include?(:arguments) && command.command_arguments.size > 0
      command.command_arguments.each do |name, template|
        display_name = template["display_name"]
        color = CommandDetail.argument_colors[name]

        value =
          if arguments.key?(name)
            arguments[name]
          elsif arguments.key?(display_name)
            arguments[display_name]
          end

        use_placeholders = only.include?(:placeholder)
        format_flags = {
          placeholder_text: (use_placeholders ? template["placeholder"] : nil),
          only: [
            (value.present? || use_placeholders ? :key : nil),
            (use_placeholders ? :placeholder : nil),
          ].compact
        }

        argument_html << format_argument(display_name, value, color, **format_flags)
      end
    end

    content_tag(:span, class: "esm-text-color-toast-blue command-syntax") do
      concat command.command_usage

      if argument_html.size > 0
        concat " "
        concat argument_html.join(" ").html_safe
      end
    end
  end

  def argument(name, value = nil, aliases: [], only: nil)
    generate_syntax = lambda do |name, value, color, opts = {}|
      content_tag(:code, class: "command-syntax") do
        format_argument(name, value, color, **opts)
      end
    end

    name = name.to_s
    color = CommandDetail.argument_colors[name]
    template = CommandDetail.all_arguments[name]
    generation_arty = [value, color, {placeholder_text: template["placeholder"], only: only}]

    capture do
      aliases.each do |name|
        concat generate_syntax.call(name, *generation_arty)
        concat ", " if aliases.size > 1
      end

      concat " and " if aliases.size > 0
      concat generate_syntax.call(name, *generation_arty)
    end
  end

  def format_argument(name, value, color, placeholder_text: "", only: nil)
    only = [:key, :placeholder] if only.nil?

    value =
      if value.present?
        content_tag(:span, value, class: color)
      elsif only.include?(:placeholder) && placeholder_text.present?
        "&lt;#{placeholder_text}&gt;".html_safe
      end

    show_key = only.include?(:key)
    capture do
      concat content_tag(:span, name, class: color) if show_key
      concat content_tag(:span, ":", class: "uk-text-muted") if show_key && value
      concat content_tag(:span, value, class: color) if value
    end
  end
end