Get your daily dose of food...

food_by_email.rb

# email everyone in the group a list of things we might like to read ?
# steps required to accomplish this, ie, pseudocode

# 1. indentify site to visit # once there decide to access specific
# 2. obtain content in html format of that url
# 3. figure out which part of the html to get (nokogiri)
# 4. Extract that data we want -
# 5. formatting the data in a way that we want (emailing the data)
# 6. email the links

# make sure to run 'gem install new_gem_name'
# for any gem not already installed on your system
# run 'gem list' to see all the gems on your system

require 'open-uri'
require 'nokogiri'
require 'gmail'

def get_page(url)
  Nokogiri::HTML(open(url))
end

def extract_data(page)
  articles = []
  page.css('.entry-title a').each do |article|
    articles.push({:title => article.text, :href => article["href"]})
  end
  articles
end

def generate_message(articles)
  message = ""
  articles.each do |article|
    message << "<a href='#{article[:href]}'>#{article[:title]}</a> </br>"
  end
  message
end

def send_mail(recipient, message, subject)
  return unless recipient
  gmail = Gmail.connect(ENV['GMAIL_EMAIL'], ENV['GMAIL_PWD'])
  gmail.deliver do
    to recipient
    subject subject
    html_part do
      body message
    end
  end
end


if __FILE__ == $0
  page = get_page("http://sfist.com/tags/burritos")
  articles = extract_data(page)
  message = generate_message(articles)
  subject = "The Daily Dose of Food"
  email = nil #replace this with the actual recipient
  send_mail(email, message, subject)
end

# original code that we wrote during class
# .each_with_object isn't such a common method

# def find_links(url)
#   page = Nokogiri::HTML(open(url))
#   page.css('.entry-title a').each_with_object([]) {|element, object| object.push(element)}
# end

# def extract_data(links)
#   extracted_hrefs = links.each_with_object([]) do |link, object|
#     object.push({:title => link.text, :href => link["href"]})
#   end
# end