Check for power outages from Duquesne Light in Pittsburgh.

duquesnelight-outages.rb

#!/usr/bin/env ruby -w
# frozen_string_literal: true

require 'json'
require 'open-uri'
require 'date'

class Outage
  attr_reader :name, :zip, :lat, :long, :number_affected, :last_updated

  def initialize(name, zip, lat, long, number_affected, last_updated)
    @name = name.to_s.split(/\s+/).map(&:capitalize).join(' ')
    @zip = Integer(zip)
    @lat = lat
    @long = long
    @number_affected = Integer(number_affected)
    @last_updated = Time.at(Integer(last_updated.sub(%r{/Date\((\d+)\)/}, '\1')) / 1000).to_datetime
  end

  def self.from_group(group_data)
    muni = group_data['Municipality']
    new muni['Name'], muni['Zip'], muni['Latitude'], muni['Longitude'], group_data['Affected'], group_data['LastUpdated']
  end

  def zip?(zipcode)
    Integer(zipcode) == zip
  end

  def to_s
    "#{name} (#{zip}) has #{number_affected} people without power as of #{last_updated.strftime('%c')}"
  end
end

class Outages
  API_URI = 'https://duquesnelight.com/outages-safety/current-outages/GetReportedOutages/'
  API_URI_CACHE = File.join(ENV['TMPDIR'] || '/tmp/', 'duquesnelight-outages.json')

  def initialize
    File.write(API_URI_CACHE, JSON.pretty_generate(JSON.parse(open(API_URI).read)) + "\n") unless File.exist? API_URI_CACHE

    @data = JSON.parse(open(API_URI_CACHE).read)
  end

  def outages
    @outages ||= @data['OutageGroups'].map { |group| Outage.from_group group }
  end

  def zip(zipcode)
    outages.select { |o| o.zip? zipcode }
  end

  def name(needle)
    outages.each { |o| [o.name, needle].join(' - ') }
    outages.select { |o| o.name.downcase.include? needle.downcase }
  end
end

outages = Outages.new

puts begin
       outages.zip(Integer(ARGV.first))
     rescue ArgumentError
       outages.name(String(ARGV.first))
     end