# frozen_string_literal: true

require "open-uri"

class APIUser < ApplicationRecord
  has_many :api_keys, foreign_key: :owner_id
  has_many :api_images, foreign_key: :creator_id
  has_many :short_urls, foreign_key: :creator_id
  has_many :e621_thumbnails, foreign_key: :creator_id
  has_one_attached :avatar
  attr_accessor :discord_data

  before_create do
    self.level = Levels::DEFAULT if level.blank?
    self.name = "User#{id}" if name.blank?
  end

  module Levels
    DEFAULT = 0
    MANAGER = 10
    ADMIN = 20

    def self.level_name(level)
      name = constants.find { |c| const_get(c) == level }.to_s.titleize
      return "Unknown: #{level}" if name.blank?
      name
    end
  end

  module LevelMethods
    Levels.constants.each do |constant|
      define_method("is_#{constant.downcase}?") do
        level >= Levels.const_get(constant)
      end

      define_method("is_exactly_#{constant.downcase}?") do
        level == Levels.const_get(constant)
      end
    end

    def level_name
      Levels.level_name(level)
    end

    def is_anonymous?
      self == APIUser.anonymous
    end
  end

  include LevelMethods

  def self.anonymous
    user = new(id: "0", name: "Anonymous", level: Levels::DEFAULT, created_at: Time.now)
    user.freeze.readonly!
    user
  end

  def self.system
    sys = find_or_create_by(id: "875334238856163368")
    sys.update_columns(name: "System") if sys.name != "System"
    sys
  end

  def method_missing(method, *)
    return discord_data[method.to_s] if discord_data.present? && discord_data.key?(method.to_s)
    super
  end

  def update_avatar(hash)
    return false if hash == last_avatar_hash && avatar.attached?
    return false if Cache.fetch("avatar_update:#{id}")
    Cache.write("avatar_update:#{id}", "1", expires_in: 1.day)
    avatar.purge
    url = "https://yiff.rest/Blep.png"
    url = "https://cdn.discordapp.com/avatars/#{id}/#{hash}.webp?size=128" unless hash.nil?
    image = URI.open(url) # rubocop:disable Security/Open
    avatar.attach(io: image, filename: "#{hash}.webp")
    update!(last_avatar_hash: hash)
    true
  rescue OpenURI::HTTPError => e
    Rails.logger.warn(e)
  end

  def can_create_apikey?
    api_keys.length < 3
  end
end