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-- Define all presets
local presets = {
    default = {
        {colors.white, 0xf0f0f0}, {colors.orange, 0xf2b233}, {colors.magenta, 0xe57fd8},
        {colors.lightBlue, 0x99b2f2}, {colors.yellow, 0xdede6c}, {colors.lime, 0x7fcc19},
        {colors.pink, 0xf2b2cc}, {colors.gray, 0x4c4c4c}, {colors.lightGray, 0x999999},
        {colors.cyan, 0x4c99b2}, {colors.purple, 0xb266e5}, {colors.blue, 0x3366cc},
        {colors.brown, 0x7f664c}, {colors.green, 0x57a64e}, {colors.red, 0xcc4c4c},
        {colors.black, 0x111111}
    },
    inverted = {
        {colors.white, 0x111111}, {colors.black, 0xf0f0f0}, {colors.gray, 0x999999},
        {colors.lightGray, 0x4c4c4c}, {colors.orange, 0xf2b233}, {colors.magenta, 0xe57fd8},
        {colors.lightBlue, 0x99b2f2}, {colors.yellow, 0xdede6c}, {colors.lime, 0x7fcc19},
        {colors.pink, 0xf2b2cc}, {colors.cyan, 0x4c99b2}, {colors.purple, 0xb266e5},
        {colors.blue, 0x3366cc}, {colors.brown, 0x7f664c}, {colors.green, 0x57a64e},
        {colors.red, 0xcc4c4c}
    },
    rgb = {
        {colors.white, 0xffffff}, {colors.orange, 0xff7f00}, {colors.magenta, 0xbe00ff},
        {colors.lightBlue, 0x7f7fff}, {colors.yellow, 0xffff00}, {colors.lime, 0x00ff00},
        {colors.pink, 0xff00ff}, {colors.gray, 0x555555}, {colors.lightGray, 0xbebebe},
        {colors.cyan, 0x007fff}, {colors.purple, 0x5500ff}, {colors.blue, 0x0000ff},
        {colors.brown, 0x7f4000}, {colors.green, 0x007f00}, {colors.red, 0xff0000},
        {colors.black, 0x000000}
    },
    retro = {
        {colors.white, 0xf4f4f4}, {colors.orange, 0xef7d57}, {colors.magenta, 0x566c86},
        {colors.lightBlue, 0x41a6f6}, {colors.yellow, 0xffcd75}, {colors.lime, 0xa7f070},
        {colors.pink, 0x94b0c2}, {colors.gray, 0x505050}, {colors.lightGray, 0xb0b0b0},
        {colors.cyan, 0x3e82e0}, {colors.purple, 0x333c57}, {colors.blue, 0x3b5dc9},
        {colors.brown, 0x7f664c}, {colors.green, 0x38b764}, {colors.red, 0xb13e53},
        {colors.black, 0x151515}
    },
    hacker = {
        {colors.white, 0x00ff00}, {colors.orange, 0x00ff00}, {colors.magenta, 0x00ec05},
        {colors.lightBlue, 0x00da09}, {colors.yellow, 0x00ff00}, {colors.lime, 0x00c70e},
        {colors.pink, 0x00b513}, {colors.gray, 0x006000}, {colors.lightGray, 0x00b000},
        {colors.cyan, 0x00a217}, {colors.purple, 0x00901c}, {colors.blue, 0x003333},
        {colors.brown, 0x007d20}, {colors.green, 0x006b25}, {colors.red, 0x00582a},
        {colors.black, 0x001100}
    }
}

-- Function to generate a random palette
local function generateRandomPalette()
    local keys = {
        colors.white, colors.orange, colors.magenta, colors.lightBlue,
        colors.yellow, colors.lime, colors.pink, colors.gray,
        colors.lightGray, colors.cyan, colors.purple, colors.blue,
        colors.brown, colors.green, colors.red, colors.black
    }
    local palette = {}
    for _, color in ipairs(keys) do
        table.insert(palette, {color, math.random(0, 0xFFFFFF)})
    end
    return palette
end

-- Set palette on term and write to file
local function applyPalette(preset)
    local file = fs.open("/startup/paletteSetter.lua", "w")
    for _, pair in ipairs(preset) do
        local color, hex = table.unpack(pair)
        term.setPaletteColor(color, hex)
        file.writeLine("term.setPaletteColor("..color..", "..hex..")")
    end
    file.close()
end

-- Flashing colors on monitor loop
local function startFlashing(palette, monitor)
    monitor.setTextScale(1)
    monitor.clear()
    while true do
        for _, pair in ipairs(palette) do
            monitor.setBackgroundColor(pair[1])
            monitor.clear()
            sleep(0.4)
        end
    end
end

-- Setup
local monitor = peripheral.wrap("top")
if not monitor then
    print("No monitor on top!")
    return
end

monitor.setTextScale(1)
monitor.setBackgroundColor(colors.black)
monitor.setTextColor(colors.white)
monitor.clear()

local options = {"default", "inverted", "rgb", "retro", "hacker", "random"}

-- Draw menu
for i, name in ipairs(options) do
    monitor.setCursorPos(2, i + 1)
    monitor.write("[" .. name .. "]")
end

-- Wait for touch
while true do
    local event, side, x, y = os.pullEvent("monitor_touch")
    local choice = options[y - 1]
    if choice then
        local selected = choice == "random" and generateRandomPalette() or presets[choice]
        applyPalette(selected)
        monitor.setTextScale(1)
        monitor.clear()
        startFlashing(selected, monitor)
    end
end