flicker_to_tweet.rb

flicker_to_tweet.rb

require 'mechanize'
require 'json'
require 'awesome_print'
require 'twitter'
require 'base58'
require 'net/http'
require 'tempfile'
require 'uri'

FLICKR_API_KEY = "3fffd0917fa897e24bd5a442018df29a"
FLICKR_PHOTOSET = "72157625277593652"
ALREADY_POSTED_FILE = "/home/sam/Programming/Ruby/flick_tweet/already_posted.txt"

def post_photo_to_twitter(flickr_url, description, image_url)
  p "Attempting to post photo '#{description}' #{flickr_url} #{image_url}"

  client = Twitter::REST::Client.new do |config|
    config.consumer_key        = "..."
    config.consumer_secret     = "..."
    config.access_token        = "..."
    config.access_token_secret = "..."
  end

  `wget #{image_url}`
  image_file = File.new(URI(image_url).path.split('/').last)

  #TODO try to find hashtag for brewery
  result = client.update_with_media("#{description} #{flickr_url} #beer", image_file)

  p "Posted with tweet id #{result.id}"

  File.delete(URI(image_url).path.split('/').last)

  p "Done"
end

class FlickrPhoto
  def initialize(photo_json)
    @json = photo_json
  end

  def photo_id
    @json['id']
  end

  def title
    @json['title']
  end

  def flickr_url
    "https://flic.kr/p/#{Base58.encode photo_id.to_i}"
  end

  def image_url
    @json['url_s']
  end

  def to_s
    "#{title} (#{photo_id})"
  end
end

def random_flickr_photo
  p "Fletching flickr photos for photoset #{FLICKR_PHOTOSET}"
  agent = Mechanize.new
  photos = []
  page_count = 1
  json_results = {}
  begin
    p "Fetch page #{page_count}"
    page = agent.get "https://api.flickr.com/services/rest/?method=flickr.photosets.getPhotos&page=#{page_count}&api_key=#{FLICKR_API_KEY}&photoset_id=#{FLICKR_PHOTOSET}&format=json&nojsoncallback=1&extras=url_s"
    json_results = JSON.parse(page.body)
    photos = photos + json_results['photoset']['photo'].collect {|j| FlickrPhoto.new(j)}
    page_count = page_count + 1
  end while json_results['photoset']['total'].to_i > photos.size
  p "Fetched #{photos.size} photos"

  already_posted = IO.read(ALREADY_POSTED_FILE).split("\n").collect { |s| s.strip }.uniq rescue []
  photos.reject! { |p| already_posted.include? p.photo_id }
  raise "No photos to post!" if photos.empty?
  p "Unposted photos #{photos.size}"

  return photos.sample
end

photo = random_flickr_photo
p "Posting photo #{photo}"
post_photo_to_twitter photo.flickr_url, photo.title, photo.image_url
open(ALREADY_POSTED_FILE, 'a') { |f| f << "#{photo.photo_id}\n" }