# frozen_string_literal: true

require 'net/http'
require 'json'

class SetupUptimerobot
  CONTACT_GROUP_IDS = '2811620_0_0-2806053_0_0'
  HTTPS_MONITORING = 1
  STATUS_PAUSED = 0

  def initialize(args)
    abort('No project name given.') if args.nil?
    @api_key = ask_for_api_key
    @url = validate_url(args)
  end

  def run
    robot_obj = monitoring_call(:new, create_robot_params)
    validate_new_project(robot_obj)
    response = monitoring_call(:edit, edit_robot_params(robot_obj['monitor']['id']))
    final_command_status(response)
  end

  private

  def ask_for_api_key
    say 'This command will configure uptimerobot for your project.'
    say 'Please give in the api_key for uptimerobot'
    ask('API-key: ')
  end

  def validate_url(args)
    abort('The url to be monitored was not given') if args.first.nil?
    abort('The url is invalid') unless args.first =~ URI::DEFAULT_PARSER.make_regexp
    URI.parse(args.first)
  end

  def create_robot_params
    {
      friendly_name: @url.host.downcase,
      url: @url.to_s,
      type: HTTPS_MONITORING,
      interval: 300,
      alert_contacts: CONTACT_GROUP_IDS
    }
  end

  def edit_robot_params(uptimerobot_monitoring_id)
    { id: uptimerobot_monitoring_id, status: STATUS_PAUSED }
  end

  def final_command_status(response)
    if response['stat'] == 'ok'
      say 'Successfully configured uptimerobot 🤩😎👍'
      say 'The status for the monitored project has paused for now...'
      say 'You can start it once your app is ready to go live 🤠'
    else
      say "Something went wrong during the configuration...😕. Uptimerobot returned '#{response['error']['message']}'"
    end
  end

  def validate_new_project(robot_obj)
    return if robot_obj['stat'] == 'ok'

    abort("An error occoured. Uptimerobot returned '#{robot_obj['error']['message']}'")
  end

  def https_request(path, params = {})
    uri = URI(path)
    req = request_body(uri, params)
    Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
      http.request(req)
    end
  end

  def request_body(uri, params)
    params[:api_key] = @api_key
    data = URI.encode_www_form params
    req = Net::HTTP::Post.new(uri)
    req.body = data
    req
  end

  def monitoring_call(action, params)
    response = https_request("https://api.uptimerobot.com/v2/#{action}Monitor", params)
    JSON.parse(response.body)
  end
end