#!/usr/bin/env ruby
require File.dirname(__FILE__) + '/../config/environment'
require 'generator'
start_time = Time.now
puts ""
puts "
"
puts ""
puts "OpenStreetMap Statistics"
puts ""
puts ""
puts ""
puts "OpenStreetMap stats report run at #{start_time.to_s}
"
begin
  user_count = User.count(:conditions => "active = 1")
  tracepoint_count = Tracepoint.count()
  node_count = Node.count(:conditions => "visible = true")
  way_count = Way.count(:conditions => "visible = true")
  relation_count = Relation.count(:conditions => "visible = true")
  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.sum(:size, :group => :user_id, :order => "sum_size DESC", :limit => 50).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.count(:user_id, :distinct => true, 
                          :conditions => "timestamp > NOW() - '1 DAY'::INTERVAL")
  week_count = Trace.count(:user_id, :distinct => true, 
                           :conditions => "timestamp > NOW() - '7 DAYS'::INTERVAL")
  month_count = Trace.count(:user_id, :distinct => true, 
                            :conditions => "timestamp > NOW() - '28 DAYS'::INTERVAL")
  puts "| GPX Files | #{day_count} | #{week_count} | #{month_count} | 
|---|
"
  day_count = OldNode.count(:user_id, :distinct => true, :joins => :changeset,
                            :conditions => "timestamp > NOW() - '1 DAY'::INTERVAL")
  week_count = OldNode.count(:user_id, :distinct => true,  :joins => :changeset,
                             :conditions => "timestamp > NOW() - '7 DAYS'::INTERVAL")
  month_count = OldNode.count(:user_id, :distinct => true, :joins => :changeset,
                              :conditions => "timestamp > NOW() - '28 DAYS'::INTERVAL")
  puts "| Nodes | #{day_count} | #{week_count} | #{month_count} | 
|---|
"
  puts "
"
  
  puts "Top users editing over the past...
"
  puts ""
  puts "| Day | Week | Month | 
|---|
"
  day_users = OldNode.count(:conditions => "timestamp > NOW() - '1 DAY'::INTERVAL",
                            :joins => :changeset, :group => :user_id,
                            :order => "count_all DESC")
  week_users = OldNode.count(:conditions => "timestamp > NOW() - '7 DAYS'::INTERVAL",
                             :joins => :changeset, :group => :user_id,
                             :order => "count_all DESC", :limit => 60)
  month_users = OldNode.count(:conditions => "timestamp > NOW() - '28 DAYS'::INTERVAL",
                              :joins => :changeset, :group => :user_id,
                              :order => "count_all DESC", :limit => 60)
  SyncEnumerator.new(day_users, 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 "
"
rescue Exception => e
  puts "Exception: #{e.to_s}
#{e.backtrace.join('
')}
"
end
puts "Report took #{(Time.new - start_time).to_s} seconds to run
"
puts ""
puts ""