# frozen_string_literal: true

module ESM
  class User < ApplicationRecord
    # =============================================================================
    # INITIALIZE
    # =============================================================================

    devise :omniauthable, :timeoutable, omniauth_providers: %i[discord steam]

    # =============================================================================
    # DATA STRUCTURE
    # =============================================================================

    # =============================================================================
    # ASSOCIATIONS
    # =============================================================================

    # =============================================================================
    # VALIDATIONS
    # =============================================================================

    # =============================================================================
    # CALLBACKS
    # =============================================================================

    # =============================================================================
    # SCOPES
    # =============================================================================

    # =============================================================================
    # CLASS METHODS
    # =============================================================================

    def self.from_omniauth(auth)
      user = where(discord_id: auth.uid).first_or_initialize

      user.update!(
        discord_username: auth.info.name,
        discord_avatar: auth.info.image,
        discord_access_token: auth.credentials.token,
        discord_refresh_token: auth.credentials.refresh_token
      )

      user
    end

    # =============================================================================
    # INSTANCE METHODS
    # =============================================================================

    def timeout_in
      2.days
    end

    def community_permissions
      @community_permissions ||= ESM.bot.user_community_permissions(id, discord_server_ids)
    end

    def modifiable_community_ids
      community_permissions.select { |c| c[:modifiable] }.key_map(:id)
    end

    def joined_community_ids
      community_permissions.key_map(:id)
    end

    def server_communities
      @server_communities ||= ESM::Community.all
        .includes(:servers)
        .order("UPPER(community_id)")
        .where(id: modifiable_community_ids, player_mode_enabled: false)
    end

    def player_communities
      @player_communities ||= ESM::Community.all
        .includes(:servers)
        .order("UPPER(community_id)")
        .where(id: modifiable_community_ids, player_mode_enabled: true)
    end

    def avatar_url
      if discord_avatar.blank? || discord_avatar.end_with?("#{discord_id}/")
        ActionController::Base.helpers.image_url("default_discord_avatar.png")
      else
        discord_avatar
      end
    end

    def discord_server_ids
      @discord_server_ids ||= Rails.cache.fetch(
        "user:#{discord_id}:discord_server_ids",
        expires_in: 1.minutes
      ) do
        response = Discord.client(discord_access_token).user_guilds
        raise HTTP::ConnectionError unless response.status.success?

        response.body
          .to_s # JSON
          .parse_json # Array<Hash>
          .key_map(:id)
      end
    end

    def welcome_message_hash
      helpers = Rails.application.routes.url_helpers

      {
        channel_id: discord_id,
        message: {
          author: {
            name: steam_data.username,
            icon_url: steam_data.avatar
          },
          title: "Successfully Registered!",
          description: "You have been registered with Exile Server Manager. This allows you to use ESM on any server running ESM that you join. You don't even have to be in their Discord!\n**Below is some important information to get you started.**",
          color: :green,
          fields: [
            {
              name: "Getting Started",
              value: "First time using ESM or need a refresher? Come read the [Getting Started](#{helpers.getting_started_docs_url}) article to help get you acquainted"
            },
            {
              name: "Commands",
              value: "Need to feel powerful? Check out my [commands](#{helpers.commands_docs_url}) and come back to show off your new found knowledge!"
            }
          ]
        }
      }
    end
  end
end