Module: FrothyBeer

Defined in:
lib/frothybeer.rb,
lib/frothybeer/beer.rb,
lib/frothybeer/version.rb,
lib/frothybeer/webpage.rb

Defined Under Namespace

Modules: WebPage Classes: Beer

Constant Summary collapse

VERSION = 
"0.0.1"

Class Method Summary collapse

Class Method Details

.beersearch(beerToFind) ⇒ Object

Main search function used to find the beer



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# File 'lib/frothybeer.rb', line 22

def self.beersearch(beerToFind)
  return nil if beerToFind.nil? # TODO raise an exception
  
  # Clean query string
  query = beerToFind.gsub(" ", "+")
  url = "http://beeradvocate.com/search?q=#{query}&qt=beer"
  
  resultsPage = WebPage::getPage(url)
  if WebPage::hasResults?(resultsPage)
    results = WebPage::getResults(resultsPage)
  else
    # TODO raise an exception
    return []
  end

  # find the best match beers
  beer = nil
  suggestions = []
  results.each do |beer_name, beer_link|
    beer_page = WebPage::getPage(beer_link)
    b = Beer.new(self.makeBeerHash(beer_page))
    
    if beer_name == beerToFind # TODO Figure out a better matching algorithm
      beer = b
    else
      suggestions << b
    end
  end
  
  return suggestions.unshift(beer)
end

.makeBeerHash(page) ⇒ Object 



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# File 'lib/frothybeer.rb', line 54

def self.makeBeerHash(page)
  hash = {}
  
  hash[:name] = self.scrapeName(page)
  hash[:brewery] = self.scrapeBrewery(page)
  hash[:rating] = self.scrapeRating(page)
  hash[:style] = self.scrapeStyle(page)
  hash[:abv] = self.scrapeABV(page)
  
  hash
end

.scrapeABV(page) ⇒ Object 



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# File 'lib/frothybeer.rb', line 86

def self.scrapeABV(page)
  raw = page.search("a/b")[3].parent().next().inspect
  return nil if raw.match(/\?/) # There is no abv specified
  abv = raw.match(/([\d\.]*)%/)[0]
end

.scrapeBrewery(page) ⇒ Object 



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# File 'lib/frothybeer.rb', line 71

def self.scrapeBrewery(page)
  page.search("a/b")[2].html
end

.scrapeName(page) ⇒ Object

Methods to scrape the beer profile page.



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# File 'lib/frothybeer.rb', line 67

def self.scrapeName(page)
  page.search("h1[@class='norm']").html
end

.scrapeRating(page) ⇒ Object

Given a beer page, returns rating for the beer (returns nil if rating N/A)



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# File 'lib/frothybeer.rb', line 77

def self.scrapeRating(page)
  rating = page.search("span[@class='BAscore_big']").first.html
  (rating == "N/A") ? nil : "#{rating}/100"
end

.scrapeStyle(page) ⇒ Object 



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# File 'lib/frothybeer.rb', line 82

def self.scrapeStyle(page)
  page.search("a/b")[3].html
end