local player = game.Players.LocalPlayer
local playerGui = player:WaitForChild("PlayerGui")

_G.MusicianAutoPlay = _G.MusicianAutoPlay or false

local screenGui = playerGui:FindFirstChild("MusicianAutoPlayGUI") or Instance.new("ScreenGui")
screenGui.Name = "MusicianAutoPlayGUI"
screenGui.ResetOnSpawn = false
screenGui.Parent = playerGui

local frame = screenGui:FindFirstChild("MainFrame") or Instance.new("Frame")
frame.Name = "MainFrame"
frame.Size = UDim2.new(0, 200, 0, 80)
frame.Position = UDim2.new(0.5, -100, 0, 100)
frame.BackgroundColor3 = Color3.fromRGB(30, 30, 35)
frame.BorderSizePixel = 2
frame.Active = true
frame.Draggable = true
frame.Parent = screenGui

local title = frame:FindFirstChild("Title") or Instance.new("TextLabel")
title.Name = "Title"
title.Size = UDim2.new(1, 0, 0, 30)
title.BackgroundTransparency = 1
title.TextColor3 = Color3.new(1, 0.9, 0.7)
title.Font = Enum.Font.SourceSansBold
title.TextSize = 20
title.Text = "Musician Assistant"
title.Parent = frame

local button = frame:FindFirstChild("Toggle") or Instance.new("TextButton")
button.Name = "Toggle"
button.Size = UDim2.new(1, -20, 0, 40)
button.Position = UDim2.new(0, 10, 0, 30)
button.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
button.TextColor3 = Color3.new(1, 1, 1)
button.Font = Enum.Font.SourceSans
button.TextSize = 18
button.Text = "Auto Play: OFF"
button.Parent = frame

local function updateButton()
    if _G.MusicianAutoPlay then
        button.Text = "Auto Play: ON"
        button.BackgroundColor3 = Color3.fromRGB(0, 120, 0)
    else
        button.Text = "Auto Play: OFF"
        button.BackgroundColor3 = Color3.fromRGB(120, 0, 0)
    end
end

button.Activated:Connect(function()
    _G.MusicianAutoPlay = not _G.MusicianAutoPlay
    updateButton()
end)

updateButton()

local function HookBeatTracker()
    local BeatTracker = require(game.ReplicatedStorage.Modules.Gameplay.BeatTracker)
    if _G.BeatTrackerHooked then return end
    _G.BeatTrackerHooked = true

    local oldUpdate = BeatTracker.update
    BeatTracker.update = function(self, dt)
        local v1 = tick()
        local beatHappened = false
        if self.nextBeat < v1 then
            beatHappened = true
        end

        oldUpdate(self, dt)

        if beatHappened and _G.MusicianAutoPlay then
            task.defer(function()
                if _G.MusicianAutoPlay and self.songSource and self.songSource.IsPlaying then
                    self:hit()
                end
            end)
        end
    end
end

pcall(HookBeatTracker)