# frozen_string_literal: true

class CommandDetail < ApplicationRecord
  COLORS = %i[green yellow orange purple pink burnt-orange lavender steel-green sage].freeze

  attr_reader :configuration

  attribute :command_name, :string
  attribute :command_type, :string
  attribute :command_category, :string
  attribute :command_limited_to, :string
  attribute :command_description, :text
  attribute :command_usage, :text
  attribute :command_examples, :json
  attribute :command_arguments, :json
  attribute :command_attributes, :json
  attribute :command_requirements, :json

  def self.total
    @total ||= all.size
  end

  def self.all_arguments
    Rails.cache.fetch("all-arguments", expires_in: 1.hour) do
      all.pluck(:command_arguments)
        .flat_map(&:values)
        .uniq { |a| a["name"] }
        .each_with_object({}) do |template, hash|
        hash[template["name"]] ||= template
        hash[template["display_name"]] ||= template
      end
    end
  end

  def self.argument_colors
    Rails.cache.fetch("argument-colors", expires_in: 1.hour) do
      colors = (COLORS.shuffle + COLORS.shuffle) # I have 10 colors and 16 unique arguments

      all.pluck(:command_arguments)
        .flat_map(&:values)
        .uniq { |a| a["name"] }
        .shuffle
        .each_with_object({}) do |template, hash|
          color = "color-#{colors.pop}"

          hash[template["name"]] = color
          hash[template["display_name"]] = color
        end
    end
  end

  def self.all_commands
    commands =
      Rails.cache.fetch("all-commands", expires_in: 1.hour) do
        all.each_with_object({}) { |command, hash| hash[command.command_name] = command.attributes }
      end

    commands.with_indifferent_access
      .transform_values! { |c| new(**c) }
  end

  def preload(community)
    @configuration = community.command_configurations.where(command_name: command_name).first
  end

  def usage_as_html
    arguments =
      command_arguments.format(join_with: " ") do |name, argument|
        argument_color = self.class.argument_colors[name]

        "<span class='#{argument_color}'>#{argument["display_name"]}</span><span class='uk-text-muted'>:</span><span class='#{argument_color}'>&lt;#{argument["placeholder"]}&gt;</span>"
      end

    "#{command_usage} #{arguments}".html_safe
  end

  def description_as_html
    markdown_to_html(command_description).html_safe
  end

  def arguments_as_html
    arguments =
      command_arguments.format do |name, argument|
        argument_color = self.class.argument_colors[name]

        <<~HTML
          <dt>
            <pre class="uk-margin-remove-bottom"><strong class="#{argument_color}">#{name}</strong><span class='uk-text-muted'>:</span></pre>
          </dt>
          <dd>
            #{markdown_to_html(argument["description"])}
            <br>
            #{markdown_to_html(argument["description_extra"] || "")}
          </dd>
        HTML
      end

    <<~HTML.html_safe
      <dl class="uk-description-list">
        #{arguments}
      </dl>
    HTML
  end

  def example_as_html
    command_examples.format do |example|
      arguments =
        (example["arguments"] || []).format(join_with: " ") do |name, value|
          argument_color = self.class.argument_colors[name]

          "<span class='#{argument_color}'>#{name}</span><span class='uk-text-muted'>:</span><span class='#{argument_color}'>#{value}</span>"
        end

      <<~HTML
        <div class="uk-margin-small-bottom" uk-grid>
          <div>
            <div class="command-syntax uk-width-auto">
              <code><span class="esm-text-color-toast-blue">#{command_usage}</span> #{arguments}</code>
            </div>
          </div>
        </div>

        <p class="uk-margin-remove-top">#{markdown_to_html(example["description"])}</p>
      HTML
    end.html_safe
  end

  def modifiable?
    command_attributes.any? { |_key, attrs| attrs["modifiable"] }
  end

  private

  def markdown_to_html(markdown)
    Kramdown::Document.new(markdown.gsub("\n", "<br>"))
      .to_html
      .gsub(/<p>|<\/p>/, "") # Remove the <p> tag that Kramdown adds
  end
end