# frozen_string_literal: true

require 'itubib/hit'
require "addressable/uri"
require 'net/http'

module ItuBib
  # Page of hit collection.
  class HitCollection < Array

    DOMAIN = 'https://www.itu.int'

    # @return [TrueClass, FalseClass]
    attr_reader :fetched

    # @return [String]
    attr_reader :text

    # @return [String]
    attr_reader :year

    # @param ref_nbr [String]
    # @param year [String]
    def initialize(ref_nbr, year = nil) #(text, hit_pages = nil)
      @text = ref_nbr
      @year = year
      from, to = nil
      if year
        from = Date.strptime year, '%Y'
        to   = from.next_year.prev_day
      end
      url  = "#{DOMAIN}/net4/ITU-T/search/GlobalSearch/Search"
      params = {
        "Input"=>"163",
        "Start"=>0,
        "Rows"=>10,
        "SortBy"=>"RELEVANCE",
        "ExactPhrase"=>false,
        "CollectionName"=>"General",
        "CollectionGroup"=>"Recommendations",
        "Sector"=>"t",
        "Criterias"=> [{
          "Name"=>"Search in",
          "Criterias" => [
            {"Selected"=>false, "Value"=>"", "Label"=>"Name", "Target"=>"/name_s", "TypeName"=>"CHECKBOX", "GetCriteriaType"=>0},
            {"Selected"=>false, "Value"=>"", "Label"=>"Short description", "Target"=>"/short_description_s", "TypeName"=>"CHECKBOX", "GetCriteriaType"=>0},
            {"Selected"=>false, "Value"=>"", "Label"=>"File content", "Target"=>"/file", "TypeName"=>"CHECKBOX", "GetCriteriaType"=>0}
          ],
          "ShowCheckbox"=>true,
          "Selected"=>false
        }],
        "Topics"=>"",
        "ClientData"=>{"ip"=>""},
        "Language"=>"en",
        "IP"=>"",
        "SearchType"=>"All"
      }
      data = { json: params.to_json }
      resp  = Net::HTTP.post(URI(url), data.to_json, 'Content-Type' => 'application/json')
      doc = JSON.parse resp.body
      hits = doc['results'].map do |h|
        code  = h['Media']['Name']
        title = h['Title']
        url   = h['Redirection']
        Hit.new({ code: code, title: title, url: url }, self)
      end
      concat hits
      @fetched = false
    end

    # @return [ItuBib::HitCollection]
    def fetch
      workers = WorkersPool.new 4
      workers.worker(&:fetch)
      each do |hit|
        workers << hit
      end
      workers.end
      workers.result
      @fetched = true
      self
    end

    def to_s
      inspect
    end

    def inspect
      "<#{self.class}:#{format('%#.14x', object_id << 1)} @fetched=#{@fetched}>"
    end
  end
end