-- IOC.lua — I/O Controller (AtlasOS Terminal v2.0)
-- out[1] = display_text    → Terminal
-- out[2] = display_clear   → Terminal
-- out[3] = display_color   → Terminal
-- out[4] = cmd_tx          → CMC.in[1] (IN|command)
-- in[1]  = user_input      ← Terminal
-- in[2]  = text_rx         ← CMC.out[1] (OUT|text)
-- in[3]  = clear_rx        ← CMC.out[2] (1 = clear)
-- in[4]  = color_rx        ← CMC.out[3] (R,G,B)

local txActive = false

inp = {}

function upd()
  if inp[1] ~= nil then
    out[4] = "IN|" .. tostring(inp[1])
    txActive = true
  elseif txActive then
    out[4] = ""
    txActive = false
  end

  if inp[2] ~= nil then
    local msg = tostring(inp[2])
    local _, arg = msg:match("^(%w+)%|(.+)$")
    if arg then out[1] = arg end
  end

  if inp[3] ~= nil and tonumber(inp[3]) == 1 then
    out[2] = 1
  end

  if inp[4] ~= nil then
    out[3] = tostring(inp[4])
  end

  table.clear(inp)
end