Reactor Disk Query

-- Uses ender chests and floppy disks to transfer data across dimensions.
-- This program queries the reactor, writes active status, stored energy, current fuel amount, max fuel, and waste to a floppy.
-- Then the floppy is moved into an ender chest to be read by the querying system.

-- Placement:
--  1. Back of turtle to reactor's ComputerCraft interface.
--  2. Enderchest in front of the turtle.
--  3. Disk drive on top of turtle

-- Define whose reactor this is for. This will allow multiple reactor checks to share a disk if necessary.
reactor_name = "rungok_moon"

-- Wrap the reactor now.
reactor = peripheral.wrap("back")

-- Define reactor stats variable.
-- Yes, it's a global variable. Dealwithit.jpg
 t_reactor_stats = {
   ["energyStored"] = 0,
   ["fuelAmount"] = 0,
   ["fuelMax"] = 0,
   ["active"] = 0,
   ["waste"] = 0
 }

function disk_to_chest()
 print("Pulling disk from drive.")
 turtle.suckUp()
 print("Putting disk in ender chest.")
 turtle.drop()
end

function disk_to_drive()
 print("Pulling disk from ender chest.")
 -- If we try to pull the disk and the job fails, sleep 1 second before trying again.
 while not turtle.suck() do
  print("Disk pull failed; sleeping for 1 second.")
  os.sleep(1)
 end
 print("Putting disk into drive.")
 turtle.dropUp()
end

function pull_reactor_stats()
 t_reactor_stats["active"] = reactor.getActive()
 t_reactor_stats["energyStored"] = reactor.getEnergyStored()
 t_reactor_stats["fuelAmount"] = reactor.getFuelAmount()
 t_reactor_stats["fuelMax"] = reactor.getFuelAmountMax()
 t_reactor_stats["waste"] = reactor.getWasteAmount()
 -- Print results
 -- for key,value in pairs(t_reactor_stats) do print(key,value) end
end

function main()
 -- First, we run a job to pull the disk from the drive and put it into the ender chest, just in case things rebooted mid-run.
 -- This will put the disk in the chest even if it is in the turtle's inventory.
 disk_to_chest()

 -- Now we begin the procedure.
 while true do
  -- First, load the disk into the drive.
  disk_to_drive()

  -- Populate the table with the reactor's current stats
  pull_reactor_stats()

  -- Write the results to the disk
  print("Writing reactor stats to disk...")
  reactor_dump = fs.open("/disk/"..reactor_name, "w")
  reactor_dump.write(textutils.serialize(t_reactor_stats))
  reactor_dump.close()

  -- Move the disk back to the ender chest
  disk_to_chest()

  -- Sleep for 60 seconds to save computing cycles and give other systems a chance to query.
  print("Sleeping...")
  os.sleep(60)
 end
end

main()