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local comp = require("component")
local event = require("event")
local term = require("term")
local os = require("os")
local core_computer = require("computer")
local gpu = comp.gpu

-- Прокси для Redstone I/O (S-A 128V Switcher)
local rs = comp.proxy("ba91dfa5-d6aa-4236-82f9-aff904e1684b")
if not rs then
  error("Error: Redstone I/O with specified ID not found!")
end

local relay_on = false -- По умолчанию выключено при старте

local function updateRelay()
  if relay_on then
    for s = 0, 5 do pcall(rs.setOutput, s, 15) end -- 15 на все стороны при ON
  else
    for s = 0, 5 do pcall(rs.setOutput, s, 0) end  -- 0 на все стороны при OFF
  end
end

-- При запуске ставим дефолтное состояние
updateRelay()

local w, h = gpu.getResolution()
gpu.setBackground(0x000000)
gpu.fill(1, 1, w, h, " ")

local function redrawScreen()
  gpu.fill(1, 1, w, 19, " ")

  gpu.setForeground(0xFFCC00)
  gpu.set(1, 1, "=== HORIZON SYSTEMS TEC. Interface ===")

  gpu.setForeground(0x00FFFF)
  gpu.set(1, 2, "Redstone Power Control System")
  gpu.set(1, 3, "----------------------------------------------------------")

  gpu.setForeground(0x00FF00)
  gpu.set(1, 4, "Сектор: S-A (128V Line)")
  
  gpu.setForeground(0x00FFFF)
  gpu.set(1, 5, "Реле статус: ")
  if relay_on then
    gpu.setBackground(0x005500)
    gpu.setForeground(0x00FF00)
    gpu.set(14, 5, " ON ")
  else
    gpu.setBackground(0x550000)
    gpu.setForeground(0xFF2222)
    gpu.set(14, 5, " OFF ")
  end
  
  gpu.setBackground(0x000000)
  gpu.setForeground(0x00FFFF)
  gpu.set(1, 6, "----------------------------------------------------------")
  gpu.set(1, 7, "==========================================================")

  gpu.setForeground(0x555555)
  gpu.set(1, 9, "Press Ctrl+C to close program.")
end

redrawScreen()

while true do
  local e_id, _, x, y = event.pull(0.01)

  if e_id == "interrupted" then
    gpu.setForeground(0xFFFFFF)
    term.clear()
    -- Полностью убран сброс в 0. Состояние сохраняется на физическом блоке Redstone I/O
    print("Program closed. Redstone state preserved.")
    return
  elseif e_id == "touch" then
    if y == 5 and x >= 14 and x <= 19 then
      relay_on = not relay_on
      updateRelay()
      redrawScreen()
    end
  end
end