#!/usr/bin/env ruby
require File.join(File.dirname(__FILE__), "..", "config", "environment")
start_time = Time.now.utc
puts ""
puts "
"
puts ""
puts "OpenStreetMap Statistics"
puts ""
puts ""
puts ""
puts "OpenStreetMap stats
"
puts "Report run at #{start_time}
"
begin
  ActiveRecord::Base.transaction do
    user_count = User.where(:status => %w[active confirmed suspended]).count
    tracepoint_count = Tracepoint.count
    node_count = Node.where(:visible => true).count
    way_count = Way.where(:visible => true).count
    relation_count = Relation.where(:visible => true).count
    puts ""
    puts "| Number of users | #{user_count} | 
"
    puts "| Number of uploaded GPS points | #{tracepoint_count} | 
"
    puts "| Number of nodes | #{node_count} | 
"
    puts "| Number of ways | #{way_count} | 
"
    puts "| Number of relations | #{relation_count} | 
"
    puts "
"
    puts 'Top 50 users for uploads of GPS data
'
    puts ""
    puts "| User | Number of Points | 
|---|
"
    Trace.where(:inserted => true).group(:user_id).order("sum_size DESC").limit(50).sum(:size).each do |user, count|
      display_name = User.find(user).display_name.gsub("@", " at ").gsub(".", " dot ")
      puts "| #{display_name} | #{count} | 
"
    end
    puts "
"
    puts 'Number of users editing over the past...
'
    puts ""
    puts "| Data Type | Day | Week | Month | 
|---|
"
    day_count = Trace.where("timestamp > NOW() - '1 DAY'::INTERVAL").distinct.count(:user_id)
    week_count = Trace.where("timestamp > NOW() - '7 DAYS'::INTERVAL").distinct.count(:user_id)
    month_count = Trace.where("timestamp > NOW() - '28 DAYS'::INTERVAL").distinct.count(:user_id)
    puts "| GPX Files | #{day_count} | #{week_count} | #{month_count} | 
|---|
"
    day_count = OldNode.where("timestamp > NOW() - '1 DAY'::INTERVAL").joins(:changeset).distinct.count(:user_id)
    week_count = OldNode.where("timestamp > NOW() - '7 DAYS'::INTERVAL").joins(:changeset).distinct.count(:user_id)
    month_count = OldNode.where("timestamp > NOW() - '28 DAYS'::INTERVAL").joins(:changeset).distinct.count(:user_id)
    puts "| Nodes | #{day_count} | #{week_count} | #{month_count} | 
|---|
"
    puts "
"
    puts 'Top users editing over the past...
'
    puts ""
    puts "| Day | Week | Month | 
|---|
"
    day_users = OldNode.where("timestamp > NOW() - '1 DAY'::INTERVAL").joins(:changeset).order("count_all DESC").group(:user_id).count
    week_users = OldNode.where("timestamp > NOW() - '7 DAYS'::INTERVAL").joins(:changeset).order("count_all DESC").limit(60).group(:user_id).count
    month_users = OldNode.where("timestamp > NOW() - '28 DAYS'::INTERVAL").joins(:changeset).order("count_all DESC").limit(60).group(:user_id).count
    day_users.zip(week_users, month_users).each do |row|
      puts ""
      row.each do |column|
        if column.nil?
          puts "| "
        else
          display_name = User.find(column[0]).display_name.gsub("@", " at ").gsub(".", " dot ")
          count = column[1]
          puts " | #{count} #{display_name}"
        end
      end
      puts " | 
"
    end
    puts "
"
  end
rescue StandardError => e
  puts "Exception: #{e}
#{e.backtrace.join('
')}
"
end
puts "Report took #{Time.now.utc - start_time} seconds to run
"
puts ""
puts ""
exit 0