finish activity ui

app/models/statistics.rb

@@ -9,6 +9,11 @@ class Statistics
     Activity.where(user: user).count
   end
 
+  def total_plays_year
+    year_start = Date.today.beginning_of_year
+    Activity.where(user: user, created_at: year_start..Date.today.end_of_day).count
+  end
+
   def activity_by_day
     start_date = 1.year.ago.to_date
     end_date = Date.today
@@ -37,4 +42,37 @@ class Statistics
   def since_date
     Activity.where(user: user).order(:created_at).limit(1).pick(:created_at)
   end
+
+  # Returns a hash with streak info: :start_date, :end_date, :length, :total_plays, :most_played_song, :most_played_song_count
+  def longest_streak
+    days = activity_by_day.keys.map { |d| Date.parse(d) }.sort
+    return nil if days.empty?
+    streaks = []
+    current_streak = []
+    days.each_with_index do |day, i|
+      if i == 0 || day == days[i-1] + 1
+        current_streak << day
+      else
+        streaks << current_streak
+        current_streak = [day]
+      end
+    end
+    streaks << current_streak unless current_streak.empty?
+    best = streaks.max_by(&:length)
+    return nil unless best && best.length > 0
+    streak_start = best.first
+    streak_end = best.last
+    plays = Activity.where(user: user, created_at: streak_start.beginning_of_day..streak_end.end_of_day)
+    total_plays = plays.count
+    song_counts = plays.group(:item_title).order('count_id DESC').limit(1).count(:id)
+    most_played_song, most_played_song_count = song_counts.first || [nil, 0]
+    {
+      start_date: streak_start,
+      end_date: streak_end,
+      length: best.length,
+      total_plays: total_plays,
+      most_played_song: most_played_song,
+      most_played_song_count: most_played_song_count
+    }
+  end
 end

app/models/user.rb

@@ -3,4 +3,8 @@ class User < ApplicationRecord
   # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :validatable
+
+  def is_admin?
+    id == 1
+  end
 end