Reactor Control V1.3

-------------------------
-- Konfiguration
-------------------------
local version = 3.1
local CFG = {
    tickSeconds = 1.0,
    -- Energie-Puffer in % (0..100)
    targetBuffer = 60,
    hysteresis = 4,
    startAt = 35,
    stopAt = 90,
    -- Steuerstab-Limits
    minRod = 0,
    maxRod = 100,
    -- Temperaturgrenzen
    maxFuelTemp = 2000,
    maxCasingTemp = 1500,
    -- Fuel-Schutz
    minFuelPercent = 2,
    -- Anzeige
    useMonitor = true,
    monitorScale = 0.5,
    -- WebSocket
    wsEnabled = true,
    wsUrl = "ws://lupus7x.de:7777/ws/ingest",
    wsSendEveryTicks = 1
}

local lastActiveKnown = false

-------------------------
-- Hilfsfunktionen
-------------------------
local function clamp(x, a, b)
    if x < a then
        return a
    end
    if x > b then
        return b
    end
    return x
end

local function round(x)
    return math.floor(x + 0.5)
end

local function safeCall(fn, default)
    local ok, val = pcall(fn)
    if ok then
        return val
    end
    return default
end

local function fmtPercent(x)
    return tostring(round(x)) .. "%"
end

local function getEnergyCapacity(reactor)
    local candidates = {
        "getEnergyCapacity",
        "getEnergyStoredMax",
        "getMaxEnergyStored",
        "getEnergyBufferSize",
        "getEnergyMax"
    }

    for _, m in ipairs(candidates) do
        if type(reactor[m]) == "function" then
            local ok, v = pcall(reactor[m])
            if ok and type(v) == "number" and v > 0 then
                return v, m
            end
        end
    end

    return nil, nil
end

local function findReactor()
    local candidates = {
        "BigReactors-Reactor",
        "ExtremeReactors-Reactor",
        "BiggerReactors_Reactor",
        "Reactor"
    }

    for _, t in ipairs(candidates) do
        local p = peripheral.find(t)
        if p then
            return p, t
        end
    end

    for _, name in ipairs(peripheral.getNames()) do
        local p = peripheral.wrap(name)
        if
            p and type(p.getEnergyStored) == "function" and type(p.setActive) == "function" and
                type(p.getNumberOfControlRods) == "function"
         then
            return p, peripheral.getType(name) or name
        end
    end

    return nil, nil
end

local function findMonitor()
    local m = peripheral.find("monitor")
    if m then
        pcall(
            function()
                m.setTextScale(CFG.monitorScale)
            end
        )
    end
    return m
end

local function setAllRods(reactor, level)
    local n = reactor.getNumberOfControlRods()
    for i = 0, n - 1 do
        reactor.setControlRodLevel(i, level)
    end
end

local function getAvgRodLevel(reactor)
    local n = reactor.getNumberOfControlRods()
    if n <= 0 then
        return 0
    end
    local sum = 0
    for i = 0, n - 1 do
        sum = sum + reactor.getControlRodLevel(i)
    end
    return sum / n
end

local function getReactorActive(reactor, fallback)
    local candidates = {"getActive", "getIsActive", "isActive"}
    for _, m in ipairs(candidates) do
        if type(reactor[m]) == "function" then
            local ok, v = pcall(reactor[m])
            if ok and type(v) == "boolean" then
                return v
            end
        end
    end
    return fallback
end

-------------------------
-- Self-Update (Pastebin)
-------------------------
local PASTEBIN_ID = "VeAGySQm"
local STARTUP_FILE = "startup"

local function downloadPastebin(id)
    if not http or type(http.get) ~= "function" then
        return nil, "HTTP nicht verfügbar (in CC/Tweaked config HTTP aktivieren)."
    end

    local url = "https://pastebin.com/raw/" .. tostring(id)
    local h = http.get(url)
    if not h then
        return nil, "Download fehlgeschlagen (http.get nil). URL: " .. url
    end

    local data = h.readAll()
    h.close()

    if not data or data == "" then
        return nil, "Leerer Download von Pastebin (ID ok?)."
    end

    return data, nil
end

local function writeFile(path, content)
    local h = fs.open(path, "w")
    if not h then
        return false, "Kann Datei nicht öffnen: " .. tostring(path)
    end
    h.write(content)
    h.close()
    return true, nil
end

local function selfUpdate()
    -- Script holen, BEVOR wir startup anfassen (damit wir nicht ohne Datei dastehen)
    local newCode, err = downloadPastebin(PASTEBIN_ID)
    if not newCode then
        return false, "Update abgebrochen: " .. tostring(err)
    end

    -- alte startup löschen (wenn möglich)
    if fs.exists(STARTUP_FILE) then
        if fs.isDir(STARTUP_FILE) then
            return false, "Update abgebrochen: 'startup' ist ein Ordner?!"
        end
        pcall(
            function()
                fs.delete(STARTUP_FILE)
            end
        )
    end

    -- neue startup schreiben
    local ok, werr = writeFile(STARTUP_FILE, newCode)
    if not ok then
        return false, "Update fehlgeschlagen beim Schreiben: " .. tostring(werr)
    end

    return true, "Update OK: neue startup installiert."
end

-------------------------
-- Persistenter Name
-------------------------
local NAME_FILE = "reactor_name.txt"

local function loadReactorName(defaultName)
    if fs.exists(NAME_FILE) and not fs.isDir(NAME_FILE) then
        local h = fs.open(NAME_FILE, "r")
        local txt = h.readAll()
        h.close()
        txt = (txt and txt:gsub("^%s+", ""):gsub("%s+$", "")) or ""
        if txt ~= "" then
            return txt
        end
    end
    return defaultName
end

local function saveReactorName(name)
    local h = fs.open(NAME_FILE, "w")
    h.write(tostring(name or ""))
    h.close()
end

-------------------------
-- WebSocket Client (Auto-Reconnect)
-------------------------
local ws = nil
local wsLastErr = nil

local function wsConnect()
    if not CFG.wsEnabled then
        return
    end
    if not http or type(http.websocket) ~= "function" then
        wsLastErr = "http.websocket nicht verfügbar (HTTP in CC config aktivieren)."
        return
    end
    if ws then
        return
    end

    local ok, connOrErr =
        pcall(
        function()
            return http.websocket(CFG.wsUrl)
        end
    )

    if ok and connOrErr then
        ws = connOrErr
        wsLastErr = nil
    else
        wsLastErr = tostring(connOrErr)
        ws = nil
    end
end

local function wsClose()
    if ws then
        pcall(
            function()
                ws.close()
            end
        )
    end
    ws = nil
end

local function wsSend(tbl)
    if not CFG.wsEnabled or not ws then
        return
    end
    local msg = textutils.serializeJSON(tbl)
    local ok =
        pcall(
        function()
            ws.send(msg)
        end
    )
    if not ok then
        wsClose()
    end
end

-------------------------
-- UI
-------------------------
local UI = {}

UI.tab = 1 -- 1=Reactor, 2=Status, 3=Temperatur, 4=Steuerung

local HAS_COLOR = (term.isColor and term.isColor()) or false
local function setBG(t, c) if HAS_COLOR and t.setBackgroundColor then t.setBackgroundColor(c) end end
local function setFG(t, c) if HAS_COLOR and t.setTextColor then t.setTextColor(c) end end

local function clampInt(x, a, b)
  if x < a then return a end
  if x > b then return b end
  return x
end

local function fill(t, x, y, w, h, ch, fg, bg)
  ch = ch or " "
  if bg then setBG(t, bg) end
  if fg then setFG(t, fg) end
  for yy = y, y + h - 1 do
    t.setCursorPos(x, yy)
    t.write(string.rep(ch, w))
  end
end

local function writeAt(t, x, y, s, fg, bg)
  if x < 1 or y < 1 then return end
  local w, h = t.getSize()
  if y > h then return end
  if x > w then return end
  if bg then setBG(t, bg) end
  if fg then setFG(t, fg) end
  t.setCursorPos(x, y)
  -- hartes Clipping nach rechts, damit nie ?aus der Box? geschrieben wird
  local maxLen = w - x + 1
  if maxLen <= 0 then return end
  if #s > maxLen then s = s:sub(1, maxLen) end
  t.write(s)
end

local function hr(t, y, fg, bg)
  local w = t.getSize()
  fill(t, 1, y, w, 1, " ", fg, bg)
end

local function bar(t, x, y, w, pct, label, colFill, colEmpty, colText, bg)
  pct = pct or 0
  if w < 6 then
    writeAt(t, x, y, tostring(math.floor(pct+0.5)) .. "%", colText, bg)
    return
  end
  local inner = math.max(1, w - 2)
  local filled = clampInt(math.floor((pct / 100) * inner + 0.5), 0, inner)

  writeAt(t, x, y, "[", colText, bg)
  writeAt(t, x + w - 1, y, "]", colText, bg)

  if filled > 0 then
    writeAt(t, x + 1, y, string.rep("=", filled), colFill, bg)
  end
  if inner - filled > 0 then
    writeAt(t, x + 1 + filled, y, string.rep("-", inner - filled), colEmpty, bg)
  end

  if label and label ~= "" then
    local txt = label
    if #txt > inner then txt = txt:sub(1, inner) end
    local lx = x + 1 + math.floor((inner - #txt) / 2)
    writeAt(t, lx, y, txt, colText, bg)
  end
end

local function pill(t, x, y, text, active, fgActive, bgActive, fgInactive, bgInactive)
  if active then
    writeAt(t, x, y, " " .. text .. " ", fgActive, bgActive)
  else
    writeAt(t, x, y, " " .. text .. " ", fgInactive, bgInactive)
  end
  return x + #text + 2
end

local function drawHeaderAndTabs(t, state)
  local w, h = t.getSize()

  local BG = HAS_COLOR and colors.black or nil
  local TOP = HAS_COLOR and colors.blue or BG
  local TXT = HAS_COLOR and colors.white or nil
  local MUTED = HAS_COLOR and colors.lightGray or nil

  -- Header
  fill(t, 1, 1, w, 1, " ", TXT, TOP)
  local title = (state.reactorName or "Reactor Control")
  local right = "V" .. tostring(state.version)
  local head = " " .. title
  if #head + #right + 2 <= w then
    head = head .. string.rep(" ", w - (#head + #right) - 1) .. right
  end
  writeAt(t, 1, 1, head, TXT, TOP)

  -- Tabs row
  fill(t, 1, 2, w, 1, " ", TXT, BG)
  local x = 2
  local tabBG = HAS_COLOR and colors.gray or BG
  local tabFG = HAS_COLOR and colors.white or nil
  local offBG = BG
  local offFG = MUTED

  x = pill(t, x, 2, "1 Reactor",      UI.tab == 1, tabFG, tabBG, offFG, offBG) + 1
  x = pill(t, x, 2, "2 Status",       UI.tab == 2, tabFG, tabBG, offFG, offBG) + 1
  x = pill(t, x, 2, "3 Temperatur", UI.tab == 3, tabFG, tabBG, offFG, offBG) + 1
  x = pill(t, x, 2, "4 Steuerung",    UI.tab == 4, tabFG, tabBG, offFG, offBG)

  -- Separator
  hr(t, 3, TXT, HAS_COLOR and colors.gray or BG)
  return 4 -- content start y
end

local function drawFooter(t, state)
  local w, h = t.getSize()
  local BG = HAS_COLOR and colors.black or nil
  local FOOT = HAS_COLOR and colors.gray or BG
  local TXT = HAS_COLOR and colors.white or nil
  local MUTED = HAS_COLOR and colors.lightGray or nil

  fill(t, 1, h - 1, w, 2, " ", TXT, FOOT)
  writeAt(t, 2, h - 1, "Tabs: 1-4 | Q quit | S SCRAM | R rename | U update", TXT, FOOT)
  local hint = ("ID " .. tostring(os.getComputerID()) .. (os.getComputerLabel() and (" | " .. os.getComputerLabel()) or ""))
  writeAt(t, w - #hint - 1, h, hint, MUTED, FOOT)
end

local function pageReactor(t, state, x, y, w, h)
  local BG = HAS_COLOR and colors.black or nil
  local TXT = HAS_COLOR and colors.white or nil
  local MUTED = HAS_COLOR and colors.lightGray or nil
  local GOOD = HAS_COLOR and colors.lime or nil
  local WARN = HAS_COLOR and colors.orange or nil
  local BAD  = HAS_COLOR and colors.red or nil
  local CYAN = HAS_COLOR and colors.cyan or nil

  local barW = math.max(10, w - 4)
  local bufferColor = (state.bufferPct >= 80) and GOOD or ((state.bufferPct >= 40) and WARN or BAD)
  local fuelColor   = (state.fuelPct   >= 10) and GOOD or ((state.fuelPct   >= 4)  and WARN or BAD)

  writeAt(t, x, y, "Energie & Fuel", CYAN, BG); y = y + 2
  bar(t, x, y, barW, state.bufferPct, "Buffer " .. state.bufferTxt, bufferColor, MUTED, TXT, BG); y = y + 2
  bar(t, x, y, barW, state.fuelPct,   "Fuel   " .. state.fuelTxt,   fuelColor,   MUTED, TXT, BG); y = y + 2

  writeAt(t, x, y, "RF/tick:", CYAN, BG)
  writeAt(t, x + 12, y, state.rfTxt, TXT, BG); y = y + 1

  writeAt(t, x, y, "Energy:", CYAN, BG)
  writeAt(t, x + 12, y, state.energyTxt, TXT, BG); y = y + 1

  if state.capMethod and state.capMethod ~= "" then
    writeAt(t, x, y, "CapMeth:", CYAN, BG)
    writeAt(t, x + 12, y, tostring(state.capMethod), MUTED, BG)
  end
end

local function pageStatus(t, state, x, y, w, h)
  local BG = HAS_COLOR and colors.black or nil
  local TXT = HAS_COLOR and colors.white or nil
  local MUTED = HAS_COLOR and colors.lightGray or nil
  local GOOD = HAS_COLOR and colors.lime or nil
  local WARN = HAS_COLOR and colors.orange or nil
  local BAD  = HAS_COLOR and colors.red or nil
  local CYAN = HAS_COLOR and colors.cyan or nil

  local function badge(label, ok, yy)
    local c = ok and GOOD or WARN
    local sym = ok and "[OK]" or "[..]"
    writeAt(t, x, yy, label, CYAN, BG)
    writeAt(t, x + 18, yy, sym, c, BG)
  end

  writeAt(t, x, y, "Systemstatus", CYAN, BG); y = y + 2
  badge("Reaktor Active", state.active, y); y = y + 1

  local wsOK = (state.wsState == "connected")
  badge("WebSocket", wsOK, y); y = y + 1
  writeAt(t, x, y, "WS:", CYAN, BG)
  writeAt(t, x + 18, y, state.wsState, MUTED, BG); y = y + 2

  local statusColor = (state.status:find("SCRAM")) and BAD or (state.status == "OK" and GOOD or WARN)
  writeAt(t, x, y, "Controller:", CYAN, BG); y = y + 1
  writeAt(t, x, y, tostring(state.status), statusColor, BG)
end

local function pageTemps(t, state, x, y, w, h)
  local BG = HAS_COLOR and colors.black or nil
  local TXT = HAS_COLOR and colors.white or nil
  local GOOD = HAS_COLOR and colors.lime or nil
  local WARN = HAS_COLOR and colors.orange or nil
  local BAD  = HAS_COLOR and colors.red or nil
  local CYAN = HAS_COLOR and colors.cyan or nil

  local function tempLine(label, value, max, yy)
    local c = (value <= max * 0.75) and GOOD or ((value <= max * 0.92) and WARN or BAD)
    writeAt(t, x, yy, label, CYAN, BG)
    writeAt(t, x + 18, yy, string.format("%4d C", value), c, BG)
    writeAt(t, x + 28, yy, ("(max " .. tostring(max) .. ")"), TXT, BG)
  end

  writeAt(t, x, y, "Temperatur", CYAN, BG); y = y + 2
  tempLine("Fuel Temp",   state.fuelTemp,   state.maxFuelTemp,   y); y = y + 1
  tempLine("Casing Temp", state.casingTemp, state.maxCasingTemp, y); y = y + 2

  -- kleine Warnzeile
  writeAt(t, x, y, "Hinweis: SCRAM bei Grenzwertüberschreitung.", TXT, BG)
end

local function pageControl(t, state, x, y, w, h)
  local BG = HAS_COLOR and colors.black or nil
  local TXT = HAS_COLOR and colors.white or nil
  local MUTED = HAS_COLOR and colors.lightGray or nil
  local GOOD = HAS_COLOR and colors.lime or nil
  local WARN = HAS_COLOR and colors.orange or nil
  local BAD  = HAS_COLOR and colors.red or nil
  local CYAN = HAS_COLOR and colors.cyan or nil

  local barW = math.max(10, w - 4)
  local rodColor = (state.rod <= 20) and GOOD or ((state.rod <= 70) and WARN or BAD)

  writeAt(t, x, y, "Steuerung", CYAN, BG); y = y + 2
  bar(t, x, y, barW, state.rod, "Rod " .. state.rodTxt, rodColor, MUTED, TXT, BG); y = y + 2

  writeAt(t, x, y, "TargetBuffer:", CYAN, BG)
  writeAt(t, x + 18, y, tostring(state.targetBuffer) .. "%", TXT, BG); y = y + 1

  writeAt(t, x, y, "Hysterese:", CYAN, BG)
  writeAt(t, x + 18, y, tostring(state.hysteresis) .. "%", TXT, BG); y = y + 1

  writeAt(t, x, y, "Start/Stop:", CYAN, BG)
  writeAt(t, x + 18, y, tostring(state.startAt) .. "% / " .. tostring(state.stopAt) .. "%", TXT, BG); y = y + 2

  writeAt(t, x, y, "Rod: 0=raus, 100=rein", MUTED, BG)
end

function UI.render(t, state)
  local w, h = t.getSize()
  local BG = HAS_COLOR and colors.black or nil
  local TXT = HAS_COLOR and colors.white or nil

  setBG(t, BG); setFG(t, TXT)
  t.clear()

  local contentY = drawHeaderAndTabs(t, state)

  -- Content area: von contentY bis h-2 (weil Footer 2 Zeilen)
  local top = contentY
  local bottom = h - 2
  local contentH = bottom - top + 1

  if contentH < 4 then
    writeAt(t, 1, top, "Monitor zu klein :(", TXT, BG)
    drawFooter(t, state)
    return
  end

  local padX = 2
  local x = padX
  local y = top + 1
  local cw = w - (padX * 2) + 1

  -- leichtes Background-Fill für Content
  fill(t, 1, top, w, contentH, " ", TXT, BG)

  if UI.tab == 1 then
    pageReactor(t, state, x, y, cw, contentH)
  elseif UI.tab == 2 then
    pageStatus(t, state, x, y, cw, contentH)
  elseif UI.tab == 3 then
    pageTemps(t, state, x, y, cw, contentH)
  else
    pageControl(t, state, x, y, cw, contentH)
  end

  drawFooter(t, state)
end

-------------------------
-- Hauptlogik
-------------------------
local reactor, rType = findReactor()
if not reactor then
    print("Kein Reaktor-Peripheral gefunden.")
    print("Tipps:")
    print("- Computer direkt an den Reaktor stellen oder per Modem verbinden")
    print("- Prüfen: peripheral.getNames()")
    return
end

local monitor = CFG.useMonitor and findMonitor() or nil

local reactorName = loadReactorName("Reactor")
if reactorName == "Reactor" then
    reactorName = loadReactorName("Reactor Control")
end

local scrammed = false
local lastRod = nil
local tickCounter = 0

local function scram(reason)
    scrammed = true
    pcall(
        function()
            reactor.setActive(false)
        end
    )
    pcall(
        function()
            setAllRods(reactor, 100)
        end
    )
    return reason or "SCRAM"
end

local function controlStep()
    local active = getReactorActive(reactor, lastActiveKnown)
    lastActiveKnown = active
    local eStored =
        safeCall(
        function()
            return reactor.getEnergyStored()
        end,
        0
    )
    local eMax, capMethod = getEnergyCapacity(reactor)

    local bufferPct
    if not eMax then
        bufferPct = 0
    else
        bufferPct = (eStored / eMax) * 100
    end
    bufferPct = clamp(bufferPct, 0, 100)

    local fuelAmt =
        safeCall(
        function()
            return reactor.getFuelAmount()
        end,
        0
    )
    local fuelMax =
        safeCall(
        function()
            return reactor.getFuelAmountMax()
        end,
        1
    )
    local fuelPct = (fuelAmt / math.max(fuelMax, 1)) * 100

    local fuelTemp =
        safeCall(
        function()
            return reactor.getFuelTemperature()
        end,
        0
    )
    local casingTemp =
        safeCall(
        function()
            return reactor.getCasingTemperature()
        end,
        0
    )

    local rfTick =
        safeCall(
        function()
            return reactor.getEnergyProducedLastTick()
        end,
        0
    )
    local rodAvg =
        safeCall(
        function()
            return getAvgRodLevel(reactor)
        end,
        0
    )

    -- Safety
    if fuelPct < CFG.minFuelPercent then
        return bufferPct, fuelPct, fuelTemp, casingTemp, rfTick, rodAvg, active, scram("SCRAM: Fuel zu niedrig"), eStored, eMax, capMethod
    end
    if fuelTemp > CFG.maxFuelTemp then
        return bufferPct, fuelPct, fuelTemp, casingTemp, rfTick, rodAvg, active, scram("SCRAM: FuelTemp zu hoch"), eStored, eMax, capMethod
    end
    if casingTemp > CFG.maxCasingTemp then
        return bufferPct, fuelPct, fuelTemp, casingTemp, rfTick, rodAvg, active, scram("SCRAM: CasingTemp zu hoch"), eStored, eMax, capMethod
    end

    scrammed = false

    -- Start/Stop
    if bufferPct <= CFG.startAt and not active then
        pcall(
            function()
                reactor.setActive(true)
            end
        )
        active = true
        lastActiveKnown = true
    elseif bufferPct >= CFG.stopAt then
        pcall(
            function()
                reactor.setActive(false)
            end
        )
        active = false
        lastActiveKnown = false
    end

    if not active then
        return bufferPct, fuelPct, fuelTemp, casingTemp, rfTick, rodAvg, active, "OFF (Puffer hoch genug)", eStored, eMax, capMethod
    end

    -- Hysterese
    local low = CFG.targetBuffer - CFG.hysteresis
    local high = CFG.targetBuffer + CFG.hysteresis

    local newRod = rodAvg

    if bufferPct < low then
        local err = (low - bufferPct)
        local step = clamp(math.floor(err * 0.6) + 1, 1, 10)
        newRod = rodAvg - step
    elseif bufferPct > high then
        local err = (bufferPct - high)
        local step = clamp(math.floor(err * 0.6) + 1, 1, 10)
        newRod = rodAvg + step
    end

    newRod = clamp(newRod, CFG.minRod, CFG.maxRod)

    if lastRod == nil or math.abs(newRod - lastRod) >= 1 then
        pcall(
            function()
                setAllRods(reactor, newRod)
            end
        )
        lastRod = newRod
    end

    return bufferPct, fuelPct, fuelTemp, casingTemp, rfTick, newRod, active, "OK", eStored, eMax, capMethod
end

-- UI Loop
local function uiLoop()
    while true do
        tickCounter = tickCounter + 1

        -- WS connect (wenn down, versuchen wir es einfach periodisch)
        if CFG.wsEnabled and not ws then
            wsConnect()
        end

        local bufferPct, fuelPct, fuelTemp, casingTemp, rfTick, rod, active, status, eStored, eMax, capMethod =
            controlStep()

        -- Telemetrie senden
        if CFG.wsEnabled and ws and (tickCounter % math.max(CFG.wsSendEveryTicks, 1) == 0) then
            wsSend(
                {
                    type = "reactor_telemetry_single",
                    computerId = os.getComputerID(),
                    label = os.getComputerLabel(),
                    reactorName = reactorName,
                    reactorType = rType,
                    timeUtcMs = (os.epoch and os.epoch("utc")) or nil,
                    active = active,
                    status = status,
                    bufferPct = bufferPct,
                    fuelPct = fuelPct,
                    fuelTemp = fuelTemp,
                    casingTemp = casingTemp,
                    rod = rod,
                    rfTick = rfTick,
                    energyStored = eStored,
                    energyMax = eMax,
                    energyCapMethod = capMethod
                }
            )
        end

local state = {
  version = version,
  reactorName = reactorName,
  active = active,
  status = tostring(status),

  bufferPct = bufferPct,
  fuelPct = fuelPct,
  fuelTemp = round(fuelTemp),
  casingTemp = round(casingTemp),

  rod = round(rod),
  rfTick = round(rfTick),

  energyStored = eStored,
  energyMax = eMax,
  capMethod = capMethod,

  -- config echoes
  targetBuffer = CFG.targetBuffer,
  startAt = CFG.startAt,
  stopAt = CFG.stopAt,
  maxFuelTemp = CFG.maxFuelTemp,
  maxCasingTemp = CFG.maxCasingTemp,

  -- preformatted strings
  bufferTxt = fmtPercent(bufferPct),
  fuelTxt = fmtPercent(fuelPct),
  rodTxt = tostring(round(rod)) .. "%",
  rfTxt = tostring(round(rfTick)),
  energyTxt = (eMax and (tostring(math.floor(eStored)) .. "/" .. tostring(math.floor(eMax))) or tostring(math.floor(eStored))),
  wsState = (CFG.wsEnabled and (ws and "connected" or "down") or "disabled"),

  -- UI
  hysteresis = CFG.hysteresis,
}

UI.render(term, state)
if monitor then UI.render(monitor, state) end

        local timer = os.startTimer(CFG.tickSeconds)
        while true do
            local ev, p1 = os.pullEvent()
            if ev == "timer" and p1 == timer then
                break
            elseif ev == "websocket_closed" or ev == "websocket_failure" then
                wsClose()
                wsLastErr = (ev == "websocket_failure") and tostring(p1) or "websocket_closed"
            elseif ev == "char" then
                local c = string.lower(p1)
if c == "\t" then
  UI.tab = (UI.tab % 4) + 1
elseif c == "1" then UI.tab = 1
elseif c == "2" then UI.tab = 2
elseif c == "3" then UI.tab = 3
elseif c == "4" then UI.tab = 4
                elseif c == "q" then
                    term.setCursorPos(1, 1)
                    term.clear()
                    print("Beendet.")
                    wsClose()
                    return
                elseif c == "s" then
                    scram("SCRAM: Manuell")
                elseif c == "r" then
                    term.setCursorPos(1, 1)
                    term.clear()
                    if monitor then
                        monitor.setCursorPos(1, 1)
                        monitor.clear()
                    end

                    print("Neuer Reaktor-Name (leer = abbrechen):")
                    write("> ")
                    local newName = read()

                    newName = (newName and newName:gsub("^%s+", ""):gsub("%s+$", "")) or ""
                    if newName ~= "" then
                        reactorName = newName
                        saveReactorName(reactorName)
                    end
                elseif c == "u" then
                    -- Update durchführen
                    term.setCursorPos(1, 1)
                    term.clear()
                    if monitor then
                        monitor.setCursorPos(1, 1)
                        monitor.clear()
                    end

                    print("Update wird geladen (Pastebin: " .. tostring(PASTEBIN_ID) .. ") ...")
                    local ok, msg = selfUpdate()
                    print(msg)

                    if ok then
                        print("Neustart...")
                        wsClose()
                        os.sleep(1)
                        os.reboot()
                    else
                        print("Beliebige Taste zum Fortfahren...")
                        os.pullEvent("char")
                    end
                end
            end
        end
    end
end

uiLoop()