#!/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
  ActiveRecord::Base.transaction do
    user_count = User.count(:conditions => { :status => ["active", "confirmed", "suspended"] })
    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, :conditions => { :inserted => true }, :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 "
"
  end
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 ""
exit 0