class ServerStatistics

# File lib/server_statistics.rb, line 2
def self.get
        cpu_rvm_count = `ps -ef | grep rben |wc -l`
        cpu_count = `ps -ef | wc -l`
        uptime = `uptime`

        captures = (`uptime`.match /up (?:(?:(\d+) day?.,)?\s*(\d+):(\d+)|(\d+) min)/)
          # puts captures.inspect
          if captures.nil?
            captures = (`uptime`.match /up (?:(?:(\d+) day?.,)?\s*(\d+) min)/)
            if captures.nil?
              captures = (`uptime`.match /up (?:(?:(\d+) day?.,)?\s*(\d+):(\d+) min)/)
              if captures.nil?
                captures = (`uptime`.match /up (?:(?:(\d+) day?.,)?\s*(\d+):(\d+))/)
                # puts captures.captures.inspect
                captures = captures.captures.insert(3, nil)
              else
                # puts captures.captures.inspect
                captures = captures.captures.insert(3, nil)
              end
            else
              # puts captures.inspect
              captures = captures.captures.insert(1, nil).insert(3, nil)
            end

          else
            captures = captures.captures
          end
        elapsed_seconds = captures.zip([86440, 3600, 60, 60]).inject(0) do |total, (x,y)|
            total + (x.nil? ? 0 : x.to_i * y)
        end
        up = Time.now - elapsed_seconds
        memory_usage = `free -m | awk '/Mem:/ {total=$2}  /Mem:/ {used=$3} END {print used/total*100}'`
        swap_to_ram_usage = `free -m |    awk '/Mem:/ { total=$2 } /Swap:/ { used=$3 } END { print used/total*100}'`
        cpu_usage = uptime.split.last(3).join(' ')
        free_hdd = (100 - `df -h | awk '/dev/ {print $5}'`.split("\n")[0].to_i).to_s + '%'

        hash = {
          cpu_count: cpu_count.chomp,
          uptime: up,
          cpu_rvm_count: cpu_rvm_count.chomp,
          cpu_usage: cpu_usage,
          memory_usage: memory_usage.to_f.round(2).to_s,
          swap_to_ram_usage: swap_to_ram_usage.to_f.round(2).to_s,
          checked: Time.now,
          free_disk: free_hdd
        }

        return hash
end