Class: ChimpsFBAnalyzer::FBAnalyzer

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

Constant Summary collapse

FB_STATS = 
[
  "date", 
  "shared",
  "updated status",
  "likes a page",
  "is now friends",
  "changed profile pic",
  "creates event",
  "went to a place",
  "going to a place",
  "adds a new photo",
  "was tagged in a friend's status",
  "was tagged in a photo",
  "friend writes on timeline",
  "joined a group", 
  "using Facebook in another language"
]
ARRAY_LENGTH = 
FB_STATS.count

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(directory_path, options = {}) ⇒ FBAnalyzer

Returns a new instance of FBAnalyzer.



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# File 'lib/chimps_fb_analyzer.rb', line 32

def initialize(directory_path, options={})
  @directory_pathname = Pathname.new(directory_path)
  @output_file = options[:output_path]
  @wall_path = @directory_pathname.join("html", "wall.htm")
  @data = []
  @get_status_update = false
end

Instance Attribute Details

#wall_path ⇒ Object (readonly)

Returns the value of attribute wall_path.



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# File 'lib/chimps_fb_analyzer.rb', line 10

def wall_path
  @wall_path
end

Instance Method Details

#analyze_wall ⇒ Object 



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# File 'lib/chimps_fb_analyzer.rb', line 40

def analyze_wall
  f = @wall_path.open
  html = Nokogiri::HTML(f)
  f.close
  @name =  html.css('html body div.contents h1').first.text

  at_date = Date.new
  html_data = html.css('html body div.contents').children
  
  @data = [FB_STATS]
  
  current_data = Array.new(ARRAY_LENGTH, 0)

  while !html_data.empty?
    html_node = html_data.shift

    if valid_date?(html_node.text)
      new_date = Date.parse(html_node.text)
      
      if  at_date != new_date

        if at_date.to_s  == "-4712-01-01"
          at_date = new_date
        else
          @data.push(current_data)

          at_date = new_date
          current_data = Array.new(ARRAY_LENGTH, 0)
          index = FB_STATS.index('date')
          current_data[index] = at_date.to_s
        end
      end
    elsif @get_status_update
      @get_status_update = false
      index = FB_STATS.index("updated status")

      if current_data[index] == 0
        current_data[index] = html_node.text
      else
        current_data[index] = ("|" + html_node.text)
      end
    else
      current_data = scan_html_node(html_node, current_data, @name)
    end
  end

  @data
end

#scan_html_node(html_node, current_data, name) ⇒ Object 



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# File 'lib/chimps_fb_analyzer.rb', line 89

def scan_html_node(html_node, current_data, name)
  case html_node.text
  when /#{name} updated (his|her) status/
    @get_status_update = true
  when /#{name} shared a/
    index = FB_STATS.index("shared")
    current_data[index] += 1
  when /#{name} likes/
    index = FB_STATS.index("likes a page")
    current_data[index] += 1
  when /#{name} is going to/
    index = FB_STATS.index("going to a place")
    current_data[index] += 1
  when /#{name} went to/
    index = FB_STATS.index("went to a place")
    current_data[index] += 1
  when /#{name} joined/
    index = FB_STATS.index("joined a group")
    current_data[index] += 1
  when /#{name} was tagged in .+ photo/ # TODO Finish
    index = FB_STATS.index("was tagged in a photo")
    current_data[index] += 1
  when /#{name} and .+ are now friends/
    index = FB_STATS.index("is now friends")
    current_data[index] += 1
  when /#{name} changed (his|her) profile picture/
    index = FB_STATS.index("changed profile pic")
    current_data[index] += 1
  when /#{name} created/
    index = FB_STATS.index("creates event")
    current_data[index] += 1
  when /#{name} added a new photo to the album/
    index = FB_STATS.index("adds a new photo")
    current_data[index] += 1
  when /wrote on your timeline/
    index = FB_STATS.index("friend writes on timeline")
    current_data[index] += 1
  when /#{name} is now using Facebook in/
    index = FB_STATS.index("using Facebook in another language")
    current_data[index] += 1
  end
  current_data
end

#valid_date?(date) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chimps_fb_analyzer.rb', line 150

def valid_date?(date)
  Date.parse(date) rescue false
end

#write_data_to_csv(data_array, output_path = nil) ⇒ Object 



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# File 'lib/chimps_fb_analyzer.rb', line 133

def write_data_to_csv(data_array, output_path=nil)
  filepath = ""

  if output_path
    filepath = Pathname.new(output_path)
  else
    filepath = File.join(Dir.pwd, "#{@name.split.join("_")}_stats.csv")
  end

  puts "Writing to #{filepath}"
  CSV.open(filepath, 'w') do |csv|
    data_array.each do |set|
      csv << set
    end
  end
end