-- redstoneremote.lua
-- Remote redstone receiver via ender modem
-- This runs on the remote computer that outputs redstone

------------- Config -------------
local CHANNEL = "redstone_1"    -- communication channel (must match the control script)
local REDSTONE_SIDE = "right"   -- which side outputs the redstone signal
---------------------------------

-- Open modem
for _, side in ipairs(rs.getSides()) do
  if peripheral.getType(side) == "modem" then
    rednet.open(side)
  end
end

print("Redstone Remote active")
print("Channel: '" .. CHANNEL .. "'")
print("Waiting for commands...")
print("My computer ID: " .. os.computerID())

-- Main loop
while true do
  local id, msg, channel = rednet.receive(CHANNEL)
  
  if type(msg) == "table" and msg.action then
    if msg.action == "on" then
      redstone.setOutput(REDSTONE_SIDE, true)
      print("[" .. id .. "] Redstone ON")
    elseif msg.action == "off" then
      redstone.setOutput(REDSTONE_SIDE, false)
      print("[" .. id .. "] Redstone OFF")
    end
  end
end