# frozen_string_literal: true

require 'logging'

require_relative 'fic_tracker/version'

module FicTracker
  class Error < StandardError; end

  class ConfigError < Error; end

  def self.logger
    @logger ||= Logging.logger[self].tap do |logger|
      logger.add_appenders ::Logging.appenders.stdout
      logger.level = :warn
    end
  end

  def self.configure!
    Config.load!
  end

  def self.cache
    configure! unless @cache
    @cache
  end

  def self.cache=(cache)
    @cache = cache
  end

  def self.database
    configure! unless @database
    @database
  end

  def self.database=(database)
    @database = database
  end

  def self.debug!
    logger.level = :debug
  end

  def self.logger=(global_logger)
    @logger = global_logger
    @global_logger = !global_logger.nil?
  end

  def self.global_logger?
    @global_logger ||= false
  end

  module Models
    def self.const_missing(const)
      raise 'No database connected' unless FicTracker.database

      model = const.to_s.downcase
      require_relative "fic_tracker/models/#{model}"

      mod = const_get(const) if const_defined? const
      return mod if mod

      raise "Model not found: #{const}"
    end
  end

  module Tasks
    autoload :Cleanup, 'fic_tracker/tasks/cleanup'
  end

  module Renderers
    autoload :Epub, 'fic_tracker/renderers/epub'
    autoload :HTML, 'fic_tracker/renderers/html'
    autoload :Markdown, 'fic_tracker/renderers/markdown'

    def self.render(type, story, **attrs)
      klass = case type
              when :Markdown, :markdown, :md
                Markdown
              when :HTML, :html
                HTML
              when :Epub, :epub
                Epub
              end
 
      stringio = nil
      unless attrs[:io]
        require 'stringio'
        attrs[:io] = StringIO.new
        stringio = true
      end

      result = klass.new(story, **attrs).render
      return result unless stringio

      attrs[:io].string
    end
  end
end

require_relative 'fic_tracker/backend'
require_relative 'fic_tracker/config'