Class: FuzzySearcher

Inherits:
Object
  • Object
show all
Defined in:
lib/fuzzy_searcher.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FuzzySearcher

Returns a new instance of FuzzySearcher.



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# File 'lib/fuzzy_searcher.rb', line 2

def initialize
  @exiter = Exiter.new
end

Instance Method Details



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# File 'lib/fuzzy_searcher.rb', line 38

def create_link_and_index_hashes(filtered_links)
  # Create 2 hashes
  links_hash = Hash.new
  index_hash = Hash.new

  filtered_links.each_with_index do |link, i|
    # Get class name
    class_name = link.partition("label:\"").last.partition("\"").first

    # Get relative URL
    class_url = link.partition("link:\"").last.partition("\"").first

    # Map class name to relative URL
    links_hash[class_name] = class_url

    # Map index to class name
    index_hash[i] = class_name
  end

  return links_hash, index_hash
end

#get_verified_user_input(selection_options_size) ⇒ Object 



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

def get_verified_user_input(selection_options_size)
  index = $stdin.gets.chomp.to_i - 1
  if index < 0 || index >= selection_options_size
    @exiter.exit_due_to_incorrect_index
    return
  end

  return index
end

#search(search_term, links) ⇒ Object 



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# File 'lib/fuzzy_searcher.rb', line 6

def search (search_term, links)

  # Grep the links array to fuzzily match our search term
  filtered_links = links.grep(/#{search_term}/i)

  # Error out and return if we don't find anything
  if filtered_links.empty?
    @exiter.exit_due_to_doc_not_found
    return
  end

  # Create link and index hashes
  # links_hash will map each class name to it's relative URL
  # index_hash will match each selection index (that we show the user) to the class name
  links_hash, index_hash = create_link_and_index_hashes(filtered_links)

  # Show all the selection options to the user
  show_selection_options(links_hash)

  # Get the user selected index and verify if it's alright
  index = get_verified_user_input(index_hash.size)

  # Get the relative URL of the required class
  relative_url = links_hash[index_hash[index]]

  # Append to base URL to form complete URL
  target_link = "#{Constants::BASE_URL}/#{relative_url}"

  return target_link

end

#show_selection_options(links_hash) ⇒ Object 



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# File 'lib/fuzzy_searcher.rb', line 60

def show_selection_options(links_hash)
  puts "Enter the index of the docs you want. ex: Enter 1 if you wish to select the first option.".green
  links_hash.keys.each_with_index do |class_name, i|
    puts "#{i+1}: #{class_name}"
  end
end