-— Stargate Universe controller for SGJourney

-- === Peripherals ===
local gate = peripheral.find("advanced_crystal_interface")
if not gate then error("No advanced_crystal_interface found!") end

local display = peripheral.find("monitor")
if not display then error("No monitor found!") end

-- === Address List ===
local addressList = {
    {1,2,3,4,5,6,7,8,0},
    {8,1,22,14,36,19,0},
    {10,11,12,13,14,15,16,17,0}
    -- Add more if needed
}

-- === Timers (in seconds) ===
local minReentryWait = 3200    -- 1 hour
local maxReentryWait = 7200    -- 2 hours
local minGateTime     = 1800   -- 30 minutes
local maxGateTime     = 7200   -- 2 hours

-- === Network Setup ===
local destinyNetworkID = 450321

-- === Logging ===
local function timestamp()
    return "[" .. textutils.formatTime(os.time(), true) .. "]"
end

local function log(msg)
    print(timestamp() .. " " .. msg)
end

-- === Monitor Output ===
display.setTextScale(0.5)
display.setBackgroundColor(colors.black)

local function updateMonitor(status)
    display.clear()
    display.setCursorPos(2, 2)
    display.setTextColor(colors.yellow)
    display.write("DESTINY STATUS")
    display.setCursorPos(2, 4)
    display.setTextColor(colors.lime)
    display.write(status)
end

-- === Strip origin symbol (0) ===
local function stripOrigin(address)
    local clean = {}
    for _, symbol in ipairs(address) do
        if symbol ~= 0 then table.insert(clean, symbol) end
    end
    return clean
end

-- === Dial Address ===
local function dialAddress(address)
    for _, symbol in ipairs(address) do
        gate.engageSymbol(symbol)
        sleep(1)
    end
end

-- === Countdown with no visible timer (SGU style) ===
local function countdown(duration)
    updateMonitor("IN FTL")
    for i = duration, 0, -1 do
        sleep(1) -- Quiet FTL travel, no time shown
    end
end

-- === Random Address Picker ===
local lastIndex = nil
local function pickNewTarget()
    local index
    repeat
        index = math.random(1, #addressList)
    until index ~= lastIndex
    lastIndex = index
    return addressList[index]
end

-- === Main Loop ===
log("Destiny controller started.")
updateMonitor("IN FTL")

while true do
    -- PHASE 1: FTL Countdown (no visible time)
    local ftlWait = math.random(minReentryWait, maxReentryWait)
    log("Destiny in FTL. Countdown to re-entry started.")
    countdown(ftlWait)

    -- PHASE 2: Re-entry — pick and dial destination
    local target = pickNewTarget()
    log("Re-entry complete. Dialing: {" .. table.concat(target, ",") .. "}")

    gate.clearWhitelist()
    gate.addToWhitelist(stripOrigin(target))
    gate.setFilterType(1) -- Whitelist mode
    gate.setNetwork(destinyNetworkID)
    gate.restrictNetwork(true)

    dialAddress(target)

    log("Whitelist and network restriction set.")
    updateMonitor("GATE ONLINE")

    -- PHASE 3: Gate window remains open
    local openTime = math.random(minGateTime, maxGateTime)
    log("Gate will remain open for " .. math.floor(openTime / 60) .. " minutes.")
    sleep(openTime)

    -- PHASE 4: FTL resumes
    gate.clearWhitelist()
    gate.setFilterType(1) -- Keep gate locked
    updateMonitor("IN FTL")
    log("Gate locked. Destiny has re-entered FTL.")
end