local Players = game:GetService("Players")
local LocalPlayer = Players.LocalPlayer
local UserInputService = game:GetService("UserInputService")

-- Admin userId list (put actual admin userIds here)
local AdminUserIds = {
    12345678, -- example admin 1
    87654321, -- example admin 2
    -- add more admins here
}

-- Check if admin is in game
local function isAdminPresent()
    for _, player in pairs(Players:GetPlayers()) do
        if table.find(AdminUserIds, player.UserId) then
            return true, player.Name
        end
    end
    return false
end

-- Key system
local key = "roblox"

-- Wait for PlayerGui
local playerGui = LocalPlayer:WaitForChild("PlayerGui")

-- Create Key Input GUI
local keyGui = Instance.new("ScreenGui", playerGui)
keyGui.Name = "KeyGui"

local keyFrame = Instance.new("Frame", keyGui)
keyFrame.Size = UDim2.new(0, 300, 0, 150)
keyFrame.Position = UDim2.new(0.5, -150, 0.5, -75)
keyFrame.BackgroundColor3 = Color3.fromRGB(20, 20, 50)
keyFrame.BorderSizePixel = 0
keyFrame.Active = true
keyFrame.Draggable = true

local keyLabel = Instance.new("TextLabel", keyFrame)
keyLabel.Size = UDim2.new(1, 0, 0, 40)
keyLabel.Position = UDim2.new(0, 0, 0, 10)
keyLabel.BackgroundTransparency = 1
keyLabel.Text = "Enter Key to Access GUI"
keyLabel.TextColor3 = Color3.new(1,1,1)
keyLabel.Font = Enum.Font.SourceSansBold
keyLabel.TextScaled = true

local keyBox = Instance.new("TextBox", keyFrame)
keyBox.Size = UDim2.new(0.8, 0, 0, 40)
keyBox.Position = UDim2.new(0.1, 0, 0, 60)
keyBox.PlaceholderText = "Key here"
keyBox.TextColor3 = Color3.new(1,1,1)
keyBox.BackgroundColor3 = Color3.fromRGB(40, 40, 80)
keyBox.Font = Enum.Font.SourceSans
keyBox.TextScaled = true

local submitButton = Instance.new("TextButton", keyFrame)
submitButton.Size = UDim2.new(0.6, 0, 0, 40)
submitButton.Position = UDim2.new(0.2, 0, 0, 110)
submitButton.BackgroundColor3 = Color3.fromRGB(70, 130, 180)
submitButton.TextColor3 = Color3.new(1,1,1)
submitButton.Font = Enum.Font.SourceSansBold
submitButton.TextScaled = true
submitButton.Text = "Submit"

-- Main GUI setup (hidden until correct key)
local mainGui = Instance.new("ScreenGui", playerGui)
mainGui.Name = "BrookhavenGui"
mainGui.Enabled = false

local mainFrame = Instance.new("Frame", mainGui)
mainFrame.Size = UDim2.new(0, 350, 0, 450)
mainFrame.Position = UDim2.new(0.5, -175, 0.5, -225)
mainFrame.BackgroundColor3 = Color3.fromRGB(10, 40, 80)
mainFrame.BorderSizePixel = 0
mainFrame.Active = true
mainFrame.Draggable = true

local title = Instance.new("TextLabel", mainFrame)
title.Size = UDim2.new(1, 0, 0, 50)
title.BackgroundTransparency = 1
title.TextColor3 = Color3.new(1,1,1)
title.Font = Enum.Font.SourceSansBold
title.TextScaled = true
title.Text = "Brookhaven GUI"

-- Warning label for admin presence
local adminWarning = Instance.new("TextLabel", mainFrame)
adminWarning.Size = UDim2.new(1, -20, 0, 40)
adminWarning.Position = UDim2.new(0, 10, 0, 60)
adminWarning.BackgroundTransparency = 0.2
adminWarning.BackgroundColor3 = Color3.fromRGB(180, 50, 50)
adminWarning.TextColor3 = Color3.new(1, 1, 1)
adminWarning.Font = Enum.Font.SourceSansBold
adminWarning.TextScaled = true
adminWarning.TextWrapped = true
adminWarning.Visible = false
adminWarning.Text = ""

-- ScrollFrame for features
local scrollFrame = Instance.new("ScrollingFrame", mainFrame)
scrollFrame.Size = UDim2.new(1, -20, 1, -120)
scrollFrame.Position = UDim2.new(0, 10, 0, 110)
scrollFrame.CanvasSize = UDim2.new(0, 0, 2, 0)
scrollFrame.ScrollBarThickness = 8
scrollFrame.BackgroundTransparency = 1

local UIListLayout = Instance.new("UIListLayout", scrollFrame)
UIListLayout.SortOrder = Enum.SortOrder.LayoutOrder
UIListLayout.Padding = UDim.new(0, 8)

-- Features table
local features = {}

-- Helper function to create buttons
local function createFeatureButton(name, callback)
    local btn = Instance.new("TextButton")
    btn.Size = UDim2.new(1, 0, 0, 40)
    btn.Text = name
    btn.BackgroundColor3 = Color3.fromRGB(50, 100, 180)
    btn.TextColor3 = Color3.new(1,1,1)
    btn.Font = Enum.Font.SourceSansBold
    btn.TextScaled = true
    btn.BorderSizePixel = 0
    btn.AutoButtonColor = true
    btn.MouseButton1Click:Connect(callback)
    return btn
end

-- Features Implementation (Examples)

features["Fly"] = function()
    -- Simple fly by changing Humanoid state
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid.PlatformStand = false
        local bodyVelocity = Instance.new("BodyVelocity")
        bodyVelocity.MaxForce = Vector3.new(0, math.huge, 0)
        bodyVelocity.Velocity = Vector3.new(0, 50, 0)
        bodyVelocity.Parent = character.HumanoidRootPart
        wait(5)
        bodyVelocity:Destroy()
    end
end

features["Speed Boost"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid.WalkSpeed = 100
        wait(10)
        humanoid.WalkSpeed = 16
    end
end

features["Jump Boost"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid.JumpPower = 100
        wait(10)
        humanoid.JumpPower = 50
    end
end

features["Rejoin"] = function()
    game:GetService("TeleportService"):Teleport(game.PlaceId, LocalPlayer)
end

features["Change Shirt"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local shirt = character:FindFirstChildWhichIsA("Shirt")
    if shirt then shirt:Destroy() end
    local newShirt = Instance.new("Shirt", character)
    newShirt.ShirtTemplate = "rbxassetid://144076891" -- Example shirt asset
end

features["Change Pants"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local pants = character:FindFirstChildWhichIsA("Pants")
    if pants then pants:Destroy() end
    local newPants = Instance.new("Pants", character)
    newPants.PantsTemplate = "rbxassetid://144076896" -- Example pants asset
end

features["Sit"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid.Sit = true
    end
end

features["No Clip Toggle"] = function()
    -- Simple no clip implementation toggle on/off
    local noclip = false
    local character = LocalPlayer.Character
    if not character then return end
    local hrp = character:FindFirstChild("HumanoidRootPart")
    if not hrp then return end

    noclip = not noclip

    if noclip then
        for _, part in pairs(character:GetChildren()) do
            if part:IsA("BasePart") then
                part.CanCollide = false
            end
        end
    else
        for _, part in pairs(character:GetChildren()) do
            if part:IsA("BasePart") then
                part.CanCollide = true
            end
        end
    end
end

features["Fly Speed Up"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local hrp = character:FindFirstChild("HumanoidRootPart")
    if not hrp then return end
    local bodyVelocity = hrp:FindFirstChildOfClass("BodyVelocity")
    if bodyVelocity then
        bodyVelocity.Velocity = hrp.CFrame.LookVector * 150
        wait(5)
        bodyVelocity:Destroy()
    end
end

features["God Mode"] = function()
    -- Just as example, sets health to very high
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid.MaxHealth = math.huge
        humanoid.Health = humanoid.MaxHealth
    end
end

features["Heal"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid.Health = humanoid.MaxHealth
    end
end

features["Jump"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid:ChangeState(Enum.HumanoidStateType.Jumping)
    end
end

features["Open Door"] = function()
    -- Example: open a door (depends on map, dummy example)
    print("Door opened! (Example feature)")
end

features["Invisible"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    for _, part in pairs(character:GetChildren()) do
        if part:IsA("BasePart") then
            part.Transparency = 1
            if part:FindFirstChild("Decal") then
                part.Decal.Transparency = 1
            end
        end
    end
end

features["Walk Speed Reset"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid.WalkSpeed = 16
    end
end

features["Jump Power Reset"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid.JumpPower = 50
    end
end

features["Sit Toggle"] = function()
    local character = LocalPlayer.Character
    if not character then return end
    local humanoid = character:FindFirstChildOfClass("Humanoid")
    if humanoid then
        humanoid.Sit = not humanoid.Sit
    end
end

features["Anti Fall Damage"] = function()
    -- Prevent fall damage by resetting health before damage
    -- Example: depends on game mechanics, dummy here
    print("Anti fall damage activated!")
end

features["Rejoin Server"] = function()
    game:GetService("TeleportService"):Teleport(game.PlaceId)
end

features["Disable GUI"] = function()
    mainGui.Enabled = false
    keyGui.Enabled = true
end

-- Add buttons for features
for name, func in pairs(features) do
    local btn = createFeatureButton(name, function()
        -- Disable features if admin detected and feature is restricted
        local adminPresent = isAdminPresent()
        if adminPresent then
            warn("Feature disabled due to admin presence.")
            return
        end
        func()
    end)
    btn.Parent = scrollFrame
end

-- Submit button logic
submitButton.MouseButton1Click:Connect(function()
    if keyBox.Text:lower() == key then
        keyGui.Enabled = false
        mainGui.Enabled = true

        -- Check admin presence
        local adminPresent, adminName = isAdminPresent()
        if adminPresent then
            adminWarning.Text = "WARNING: Admin detected in game: "..adminName..". Some features disabled."
            adminWarning.Visible = true

            -- Optional: kick player (uncomment to enable)
            -- wait(5)
            -- LocalPlayer:Kick("Admin detected. You have been kicked.")
        else
            adminWarning.Visible = false
        end

    else
        keyLabel.Text = "Incorrect Key! Try again."
        keyLabel.TextColor3 = Color3.fromRGB(255, 80, 80)
    end
end)

-- Allow dragging main GUI by dragging frame
local dragging, dragInput, dragStart, startPos

mainFrame.InputBegan:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseButton1 then
        dragging = true
        dragStart = input.Position
        startPos = mainFrame.Position
        input.Changed:Connect(function()
            if input.UserInputState == Enum.UserInputState.End then
                dragging = false
            end
        end)
    end
end)

mainFrame.InputChanged:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseMovement then
        dragInput = input
    end
end)

UserInputService.InputChanged:Connect(function(input)
    if dragging and input == dragInput then
        local delta = input.Position - dragStart
        mainFrame.Position = UDim2.new(
            startPos.X.Scale,
            startPos.X.Offset + delta.X,
            startPos.Y.Scale,
            startPos.Y.Offset + delta.Y
        )
    end
end)