# -*- coding: utf-8 -*-
#
# Copyright 2013 whiteleaf. All rights reserved.
#

require "open-uri"
require "time"
require_relative "html"

class NovelInfo
  REFRESH_INTERVAL = 10 * 60   # キャッシュを捨てて再取得するまでの時間(s)
  @@novel_info_parameters = {}

  def self.load(setting)
    info = new(setting)
    info.parse_novel_info
  end

  def initialize(setting)
    @setting = setting
    @ncode = @setting["ncode"]
    @@novel_info_parameters[@setting["name"]] ||= {}
  end

  def parse_novel_info
    info_url = @setting["novel_info_url"] or return nil
    result = @@novel_info_parameters[@setting["name"]][@ncode] ||= {}
    unless result.empty?
      # WEB UI でプロセスが常駐している間に小説情報（タイトルやあらすじ等）が
      # 変更される場合があるので、一定時間過ぎたら再取得をする必要がある
      if Time.now < result["last_load_time"] + REFRESH_INTERVAL
        return result   # まだ一定時間過ぎていないのでキャッシュを返す
      end
    end
    of = "t-nt-ga-s-gf-nu-gl-w"
    request_output_parameters = of.split("-")
    info_source = ""
    cookie = @setting["cookie"] || ""
    open_uri_options = make_open_uri_options("Cookie" => cookie, allow_redirections: :safe)
    open(info_url, open_uri_options) do |fp|
      info_source = Helper.restor_entity(Helper.pretreatment_source(fp.read, @setting["encoding"]))
      raise Downloader::DownloaderNotFoundError if Downloader.detect_error_message(@setting, info_source)
    end
    @setting.multi_match(info_source, *request_output_parameters)
    result["last_load_time"] = Time.now
    result["title"] = @setting["title"]
    novel_status = @setting["novel_type_string"][@setting["novel_type"]] || 1
    result["end"] = novel_status == 3
    result["novel_type"] = case novel_status
                           when 1, 3   # 連載
                             1
                           when 2      # 短編
                             ga = @setting["general_all_no"]
                             # ハーメルンで短編なのに連載形式のがあるため
                             ga && ga > "1" ? 1 : 2
                           end
    story_html = HTML.new(@setting["story"])
    story_html.strip_decoration_tag = true
    result["story"] = story_html.to_aozora
    result["writer"] = @setting["writer"]
    %w(general_firstup novelupdated_at general_lastup).each do |elm|
      result[elm] = Helper.date_string_to_time(@setting[elm])
    end
    result["novelupdated_at"] ||= result["general_firstup"]
    result["general_lastup"] ||= result["novelupdated_at"]

    result
  end
end