Class: JekyllStats::StatsCalculator

Inherits:
Object
  • Object
show all
Defined in:
lib/jekyll-stats/stats_calculator.rb

Constant Summary collapse

WORDS_PER_MINUTE = 
200

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(site, include_drafts: false) ⇒ StatsCalculator

Returns a new instance of StatsCalculator.



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# File 'lib/jekyll-stats/stats_calculator.rb', line 9

def initialize(site, include_drafts: false)
  @site = site
  @include_drafts = include_drafts
end

Instance Attribute Details

#include_drafts ⇒ Object (readonly)

Returns the value of attribute include_drafts.



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# File 'lib/jekyll-stats/stats_calculator.rb', line 7

def include_drafts
  @include_drafts
end

#site ⇒ Object (readonly)

Returns the value of attribute site.



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# File 'lib/jekyll-stats/stats_calculator.rb', line 7

def site
  @site
end

Instance Method Details

#calculate ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 14

def calculate
  posts = collect_posts
  return empty_stats if posts.empty?

  word_counts = posts.map { |p| [p, word_count(p)] }
  sorted_by_words = word_counts.sort_by { |_, count| -count }
  sorted_by_date = posts.sort_by { |p| p.date }

  total_words = word_counts.sum { |_, count| count }
  dates = sorted_by_date.map(&:date)

  {
    generated_at: Time.now.utc.iso8601,
    total_posts: posts.size,
    total_words: total_words,
    reading_minutes: (total_words / WORDS_PER_MINUTE.to_f).ceil,
    average_words: (total_words / posts.size.to_f).round,
    longest_post: post_info(sorted_by_words.first[0], sorted_by_words.first[1]),
    shortest_post: post_info(sorted_by_words.last[0], sorted_by_words.last[1]),
    first_post: post_info_with_date(sorted_by_date.first),
    last_post: post_info_with_date(sorted_by_date.last),
    years_active: years_active(dates.first, dates.last),
    posts_per_month: posts_per_month(posts.size, dates.first, dates.last),
    posts_by_year: posts_by_year(posts),
    posts_by_month: posts_by_month(posts),
    posts_by_day_of_week: posts_by_day_of_week(posts),
    tags: tag_counts(posts),
    categories: category_counts(posts),
    drafts_count: drafts_count
  }
end

#category_counts(posts) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 121

def category_counts(posts)
  counts = Hash.new(0)
  posts.each do |post|
    categories = post.data["categories"] || []
    categories.each { |cat| counts[cat] += 1 }
  end
  counts.sort_by { |_, count| -count }
        .map { |name, count| { name: name, count: count } }
end

#collect_posts ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 46

def collect_posts
  posts = site.posts.docs.dup
  posts += site.drafts if include_drafts && site.respond_to?(:drafts)
  posts
end

#drafts_count ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 131

def drafts_count
  return 0 unless site.respond_to?(:drafts) && site.drafts

  site.drafts.size
end

#empty_stats ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 137

def empty_stats
  {
    generated_at: Time.now.utc.iso8601,
    total_posts: 0,
    total_words: 0,
    reading_minutes: 0,
    average_words: 0,
    longest_post: nil,
    shortest_post: nil,
    first_post: nil,
    last_post: nil,
    years_active: 0,
    posts_per_month: 0,
    posts_by_year: [],
    posts_by_month: [],
    posts_by_day_of_week: %w[sunday monday tuesday wednesday thursday friday saturday].each_with_object({}) { |d, h| h[d] = 0 },
    tags: [],
    categories: [],
    drafts_count: 0
  }
end

#post_info(post, words) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 62

def post_info(post, words)
  {
    title: post.data["title"] || "(untitled)",
    url: post.url,
    words: words
  }
end

#post_info_with_date(post) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 70

def post_info_with_date(post)
  {
    title: post.data["title"] || "(untitled)",
    url: post.url,
    date: post.date.strftime("%Y-%m-%d")
  }
end

#posts_by_day_of_week(posts) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 104

def posts_by_day_of_week(posts)
  days = %w[sunday monday tuesday wednesday thursday friday saturday]
  counts = Hash.new(0)
  posts.each { |p| counts[days[p.date.wday]] += 1 }
  days.each_with_object({}) { |day, h| h[day] = counts[day] }
end

#posts_by_month(posts) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 96

def posts_by_month(posts)
  counts = posts.group_by { |p| p.date.strftime("%Y-%m") }
                .transform_values(&:size)
                .sort_by { |month, _| month }
                .reverse
  counts.map { |month, count| { month: month, count: count } }
end

#posts_by_year(posts) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 89

def posts_by_year(posts)
  counts = posts.group_by { |p| p.date.year }
                .transform_values(&:size)
                .sort_by { |year, _| -year }
  counts.map { |year, count| { year: year, count: count } }
end

#posts_per_month(count, first_date, last_date) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 84

def posts_per_month(count, first_date, last_date)
  months = ((last_date.year - first_date.year) * 12) + (last_date.month - first_date.month) + 1
  (count / months.to_f).round(1)
end

#tag_counts(posts) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 111

def tag_counts(posts)
  counts = Hash.new(0)
  posts.each do |post|
    tags = post.data["tags"] || []
    tags.each { |tag| counts[tag] += 1 }
  end
  counts.sort_by { |_, count| -count }
        .map { |name, count| { name: name, count: count } }
end

#word_count(post) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 52

def word_count(post)
  content = post.content.to_s
  text = content.gsub(/<[^>]*>/, " ")
  text = text.gsub(/```[\s\S]*?```/, " ")
  text = text.gsub(/`[^`]*`/, " ")
  text = text.gsub(/\[([^\]]*)\]\([^)]*\)/, '\1')
  text = text.gsub(/[#*_~`]/, "")
  text.split(/\s+/).count { |w| w.match?(/\w/) }
end

#years_active(first_date, last_date) ⇒ Object 



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# File 'lib/jekyll-stats/stats_calculator.rb', line 78

def years_active(first_date, last_date)
  seconds = (last_date - first_date).to_f
  days = seconds / 86400.0
  (days / 365.25).round(1)
end