-- RX 2.0 UTILITY SCRIPT - SCRIPT-BLOX APPROVED VERSION (Optimized)
-- Advanced chat utility for Roblox with key verification
-- Key Generation: https://willowy-frangipane-3322fb.netlify.app
-- Key expires in 24 hours - Get a new key from the website

--!strict

--[[ Constants ]]
local KEY_WEBSITE_URL = "https://willowy-frangipane-3322fb.netlify.app"
local REQUIRED_KEY_PREFIX = "RX-FREE-"
local KEY_EXPIRATION_HOURS = 24

-- UI Colors
local BG_COLOR = Color3.fromRGB(10, 10, 20)
local ACCENT_COLOR = Color3.fromRGB(0, 120, 255)
local TEXT_COLOR = Color3.fromRGB(255, 255, 255)
local FIELD_COLOR = Color3.fromRGB(20, 20, 40)
local BORDER_COLOR = Color3.fromRGB(60, 60, 70)
local SUCCESS_COLOR = Color3.fromRGB(0, 200, 100)
local WARNING_COLOR = Color3.fromRGB(255, 165, 0)

--[[ Services ]]
local Players = game:GetService("Players")
local StarterGui = game:GetService("StarterGui")
local TextChatService = game:GetService("TextChatService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")

local LocalPlayer = Players.LocalPlayer
local PlayerGui = LocalPlayer:WaitForChild("PlayerGui")

--[[ Utility Functions ]]

-- Function to verify the key format (client-side only)
local function verifyKey(key: string): boolean
    if not key or typeof(key) ~= "string" then return false end
    
    -- Trim whitespace and convert to uppercase for robust matching
    key = key:match("^%s*(.-)%s*$"):upper()
    
    local prefix = key:sub(1, #REQUIRED_KEY_PREFIX)
    local suffix = key:sub(#REQUIRED_KEY_PREFIX + 1)
    
    -- Basic format check: prefix + 5 alphanumeric characters
    return prefix == REQUIRED_KEY_PREFIX and #suffix == 5 and suffix:match("^[A-Z0-9]+$")
end

-- Function to get key expiration time (client-side only)
local function getKeyExpirationTime(): number
    return os.time() + (KEY_EXPIRATION_HOURS * 3600)
end

-- Function to format time remaining
local function formatTimeRemaining(expirationTime: number): string
    local currentTime = os.time()
    local timeRemaining = expirationTime - currentTime
    
    if timeRemaining <= 0 then
        return "EXPIRED"
    end
    
    local hours = math.floor(timeRemaining / 3600)
    local minutes = math.floor((timeRemaining % 3600) / 60)
    
    return string.format("%dh %dm", hours, minutes)
end

-- Function to show in-game notifications
local function showNotification(title: string, text: string, duration: number?)
    pcall(function()
        StarterGui:SetCore("SendNotification", {
            Title = title,
            Text = text,
            Duration = duration or 4
        })
    end)
end

-- Function to send chat messages
local function sendMessage(msg: string)
    if not msg or msg == "" then return end
    
    pcall(function()
        local generalChannel = TextChatService:FindFirstChild("TextChannels") and TextChatService.TextChannels:FindFirstChild("RBXGeneral")
        if generalChannel then
            generalChannel:SendAsync(msg)
        else
            local chatInputBarConfig = TextChatService:FindFirstChild("ChatInputBarConfiguration")
            if chatInputBarConfig and chatInputBarConfig.TargetTextChannel then
                chatInputBarConfig.TargetTextChannel:SendAsync(msg)
            end
        end
    end)
    
    -- Fallback for older chat systems
    pcall(function()
        ReplicatedStorage.DefaultChatSystemChatEvents.SayMessageRequest:FireServer(msg, "All")
    end)
end

--[[ UI Setup ]]

-- Clean up existing UI if present
if PlayerGui:FindFirstChild("RX_Utility_V2") then
    PlayerGui.RX_Utility_V2:Destroy()
end

-- Main ScreenGui
local MainGui = Instance.new("ScreenGui")
MainGui.Name = "RX_Utility_V2"
MainGui.ResetOnSpawn = false
MainGui.Parent = PlayerGui

-- Startup Notification
showNotification("RYANxSUMIT", "RX 2.0 SYSTEM LOADED ✅", 5)

-- Helper function for creating TextBoxes
local function createTextBox(parent: Instance, size: UDim2, position: UDim2, placeholder: string, defaultText: string?): TextBox
    local textBox = Instance.new("TextBox")
    textBox.Size = size
    textBox.Position = position
    textBox.BackgroundColor3 = FIELD_COLOR
    textBox.TextColor3 = TEXT_COLOR
    textBox.PlaceholderText = placeholder
    textBox.Text = defaultText or ""
    textBox.TextSize = 12
    textBox.Font = Enum.Font.Gotham
    textBox.BorderSizePixel = 1
    textBox.BorderColor3 = BORDER_COLOR
    textBox.Parent = parent
    return textBox
end

-- Helper function for creating TextButtons
local function createTextButton(parent: Instance, size: UDim2, position: UDim2, text: string, bgColor: Color3, textColor: Color3, textSize: number, font: Enum.Font, onClick: () -> ()): TextButton
    local button = Instance.new("TextButton")
    button.Size = size
    button.Position = position
    button.BackgroundColor3 = bgColor
    button.TextColor3 = textColor
    button.Text = text
    button.TextSize = textSize
    button.Font = font
    button.BorderSizePixel = 1
    button.BorderColor3 = BORDER_COLOR
    button.MouseButton1Click:Connect(onClick)
    button.Parent = parent
    return button
end

--[[ Key Input UI ]]
local KeyFrame = Instance.new("Frame")
KeyFrame.Size = UDim2.new(0, 380, 0, 280)
KeyFrame.Position = UDim2.new(0.5, -190, 0.4, -140)
KeyFrame.BackgroundColor3 = BG_COLOR
KeyFrame.BorderSizePixel = 2
KeyFrame.BorderColor3 = ACCENT_COLOR
KeyFrame.Active = true
KeyFrame.Draggable = true
KeyFrame.Parent = MainGui

local KeyTitle = Instance.new("TextLabel")
KeyTitle.Size = UDim2.new(1, 0, 0, 40)
KeyTitle.BackgroundColor3 = Color3.fromRGB(15, 15, 18)
KeyTitle.BorderSizePixel = 0
KeyTitle.Text = "  RX 2.0 UTILITY SYSTEM"
KeyTitle.TextColor3 = ACCENT_COLOR
KeyTitle.TextSize = 16
KeyTitle.Font = Enum.Font.GothamBold
KeyTitle.TextXAlignment = Enum.TextXAlignment.Left
KeyTitle.Parent = KeyFrame

local KeyDescription = Instance.new("TextLabel")
KeyDescription.Size = UDim2.new(1, 0, 0, 70)
KeyDescription.Position = UDim2.new(0, 0, 0, 45)
KeyDescription.BackgroundTransparency = 1
KeyDescription.Text = "Enter your key to unlock the utility.\n\nKey expires in 24 hours.\nGet a new key from our website."
KeyDescription.TextColor3 = TEXT_COLOR
KeyDescription.TextSize = 12
KeyDescription.Font = Enum.Font.Gotham
KeyDescription.TextWrapped = true
KeyDescription.Parent = KeyFrame

local keyInputTextBox = createTextBox(
    KeyFrame,
    UDim2.new(0, 300, 0, 40),
    UDim2.new(0.5, -150, 0, 125),
    "Enter Key Here (RX-FREE-XXXXX)..."
)
keyInputTextBox.TextSize = 14 -- Override default size for this specific textbox

local getKeyButton = createTextButton(
    KeyFrame,
    UDim2.new(0, 140, 0, 40),
    UDim2.new(0.5, -210, 0, 180),
    "🔑 GET KEY",
    ACCENT_COLOR,
    TEXT_COLOR,
    11,
    Enum.Font.GothamBold,
    function()
        pcall(function() setclipboard(KEY_WEBSITE_URL) end)
        showNotification("✅ URL Copied!", "Website URL copied to clipboard.")
    end
)
getKeyButton.BorderSizePixel = 0

local submitKeyButton = createTextButton(
    KeyFrame,
    UDim2.new(0, 140, 0, 40),
    UDim2.new(0.5, 70, 0, 180),
    "✓ SUBMIT KEY",
    SUCCESS_COLOR,
    TEXT_COLOR,
    11,
    Enum.Font.GothamBold,
    function()
        if verifyKey(keyInputTextBox.Text) then
            mainUtilityUI()
        else
            showNotification("❌ Invalid Key", "Key format: RX-FREE-XXXXX.")
        end
    end
)
submitKeyButton.BorderSizePixel = 0

local expirationInfoLabel = Instance.new("TextLabel")
expirationInfoLabel.Size = UDim2.new(1, 0, 0, 20)
expirationInfoLabel.Position = UDim2.new(0, 0, 1, -20)
expirationInfoLabel.BackgroundColor3 = WARNING_COLOR
expirationInfoLabel.TextColor3 = Color3.fromRGB(0, 0, 0)
expirationInfoLabel.Text = "⚠️ Keys expire in 24 hours - Get a new key from the website"
expirationInfoLabel.TextSize = 10
expirationInfoLabel.Font = Enum.Font.GothamBold
expirationInfoLabel.BorderSizePixel = 0
expirationInfoLabel.Parent = KeyFrame

--[[ Main Utility UI ]]
function mainUtilityUI()
    KeyFrame:Destroy()
    
    -- Activation Message in Server Chat
    sendMessage("ENABLED")
    
    local MainPanel = Instance.new("Frame")
    MainPanel.Size = UDim2.new(0, 580, 0, 300)
    MainPanel.AnchorPoint = Vector2.new(0.5, 0)
    MainPanel.Position = UDim2.new(0.5, 0, 0.05, 0)
    MainPanel.BackgroundColor3 = BG_COLOR
    MainPanel.BorderSizePixel = 2
    MainPanel.BorderColor3 = ACCENT_COLOR
    MainPanel.Active = true
    MainPanel.Draggable = true
    MainPanel.Parent = MainGui

    local PanelTitle = Instance.new("TextLabel")
    PanelTitle.Size = UDim2.new(1, 0, 0, 35)
    PanelTitle.BackgroundColor3 = Color3.fromRGB(15, 15, 18)
    PanelTitle.BorderSizePixel = 0
    PanelTitle.Text = "   RX 2.0 UTILITY PANEL"
    PanelTitle.TextColor3 = ACCENT_COLOR
    PanelTitle.TextSize = 14
    PanelTitle.Font = Enum.Font.GothamBold
    PanelTitle.TextXAlignment = Enum.TextXAlignment.Left
    PanelTitle.Parent = MainPanel

    local MinimizeButton = createTextButton(
        MainPanel,
        UDim2.new(0, 35, 0, 35),
        UDim2.new(1, -35, 0, 0),
        "⚡",
        Color3.fromRGB(30, 30, 35),
        ACCENT_COLOR,
        16,
        Enum.Font.GothamBold,
        function()
            MainPanel.Visible = false
            CompactButton.Visible = true
        end
    )
    MinimizeButton.BorderSizePixel = 0

    local ContentFrame = Instance.new("Frame")
    ContentFrame.Size = UDim2.new(1, 0, 1, -35)
    ContentFrame.Position = UDim2.new(0, 0, 0, 35)
    ContentFrame.BackgroundTransparency = 1
    ContentFrame.Parent = MainPanel

    local CompactButton = createTextButton(
        MainGui,
        UDim2.new(0, 45, 0, 45),
        UDim2.new(0.5, 0, 0.02, 0),
        "⚡",
        BG_COLOR,
        ACCENT_COLOR,
        12,
        Enum.Font.GothamBold,
        function()
            CompactButton.Visible = false
            MainPanel.Position = UDim2.new(0.5, 0, 0.05, 0)
            MainPanel.Visible = true
        end
    )
    CompactButton.BorderSizePixel = 2
    CompactButton.BorderColor3 = ACCENT_COLOR
    CompactButton.Visible = false
    CompactButton.Active = true
    CompactButton.Draggable = true

    local enemyNameBox = createTextBox(ContentFrame, UDim2.new(0, 160, 0, 35), UDim2.new(0, 15, 0, 20), "Enemy name...")
    local patternBox = createTextBox(ContentFrame, UDim2.new(0, 160, 0, 35), UDim2.new(0, 15, 0, 65), "Symbol pattern", "~")
    local delayBox = createTextBox(ContentFrame, UDim2.new(0, 160, 0, 35), UDim2.new(0, 15, 0, 110), "Delay (seconds)", "2.0")
    local symbolCountBox = createTextBox(ContentFrame, UDim2.new(0, 160, 0, 35), UDim2.new(0, 15, 0, 155), "COUNT", "130") 
    
    local messageBox1 = createTextBox(ContentFrame, UDim2.new(0, 200, 0, 35), UDim2.new(0, 185, 0, 20), "Custom message 1...")
    local messageBox2 = createTextBox(ContentFrame, UDim2.new(0, 200, 0, 35), UDim2.new(0, 185, 0, 65), "Custom message 2...")
    local messageBox3 = createTextBox(ContentFrame, UDim2.new(0, 200, 0, 35), UDim2.new(0, 185, 0, 110), "Custom message 3...")

    local function buildMessage(baseMsg: string, pattern: string?, enemy: string?): string
        local symbolCount = tonumber(symbolCountBox.Text) or 130
        local patternStr = pattern or "~"
        if patternStr == "" then patternStr = "~" end
        
        local prefix = string.rep(patternStr, symbolCount)
        
        local finalMsg = prefix .. " "
        if enemy and enemy ~= "" then
            finalMsg = finalMsg .. "[" .. enemy .. "] "
        end
        finalMsg = finalMsg .. baseMsg
        
        return finalMsg
    end
    
    -- Preset Buttons
    createTextButton(
        ContentFrame,
        UDim2.new(0, 140, 0, 25),
        UDim2.new(0, 395, 0, 20),
        "RX SPECIAL",
        Color3.fromRGB(40, 40, 45),
        TEXT_COLOR,
        10,
        Enum.Font.GothamBold,
        function()
            messageBox1.Text = "TMX MARE RYXN AND SUMIT PAPA"
            messageBox2.Text = "TMX MEH ROAD ROLLER 🚜"
            messageBox3.Text = "TMX MARE VIYAY THALAPATHY 🦁"
            showNotification("Preset Loaded", "RX SPECIAL messages loaded successfully")
        end
    )
    
    createTextButton(
        ContentFrame,
        UDim2.new(0, 140, 0, 25),
        UDim2.new(0, 395, 0, 55),
        "RX BEAST",
        Color3.fromRGB(40, 40, 45),
        TEXT_COLOR,
        10,
        Enum.Font.GothamBold,
        function()
            messageBox1.Text = "TMX MARE WILD GORILA 🦍"
            messageBox2.Text = "TMX MARE PHANTER 🐆"
            messageBox3.Text = "TMX MEH OBSIDIAN 💎"
            showNotification("Preset Loaded", "RX BEAST messages loaded successfully")
        end
    )
    
    local activeSending = false
    local SendToggleButton = createTextButton(
        ContentFrame,
        UDim2.new(0, 140, 0, 40),
        UDim2.new(0, 395, 0, 90),
        "SEND MESSAGE",
        ACCENT_COLOR,
        TEXT_COLOR,
        11,
        Enum.Font.GothamBold,
        function()
            activeSending = not activeSending
            SendToggleButton.BackgroundColor3 = activeSending and SUCCESS_COLOR or ACCENT_COLOR
            SendToggleButton.Text = activeSending and "STOP SENDING" or "SEND MESSAGE"
            
            if activeSending then
                task.spawn(function()
                    while activeSending do
                        local messages = {}
                        if messageBox1.Text ~= "" then table.insert(messages, messageBox1.Text) end
                        if messageBox2.Text ~= "" then table.insert(messages, messageBox2.Text) end
                        if messageBox3.Text ~= "" then table.insert(messages, messageBox3.Text) end
                        
                        if #messages == 0 then table.insert(messages, "rx 2.0 utility") end
                        
                        local delayTime = tonumber(delayBox.Text) or 2.0
                        if delayTime < 0.1 then delayTime = 0.1 end -- Prevent excessively fast sending

                        for _, msg in ipairs(messages) do
                            if not activeSending then break end
                            sendMessage(buildMessage(msg, patternBox.Text, enemyNameBox.Text))
                            task.wait(delayTime)
                        end
                        task.wait(0.5) -- Small pause between cycles of messages
                    end
                end)
            end
        end
    )
    SendToggleButton.TextWrapped = true

    createTextButton(
        ContentFrame,
        UDim2.new(0, 140, 0, 30),
        UDim2.new(0, 395, 0, 140),
        "Settings",
        Color3.fromRGB(50, 50, 60),
        TEXT_COLOR,
        10,
        Enum.Font.GothamBold,
        function()
            showNotification("Settings", "Delay: " .. delayBox.Text .. "s | Symbols: " .. symbolCountBox.Text)
        end
    )
    
    local keyInfoDisplayLabel = Instance.new("TextLabel")
    keyInfoDisplayLabel.Size = UDim2.new(1, 0, 0, 30)
    keyInfoDisplayLabel.Position = UDim2.new(0, 0, 1, -30)
    keyInfoDisplayLabel.BackgroundTransparency = 1
    keyInfoDisplayLabel.Text = "Key expires in 24 hours | Get new key from website"
    keyInfoDisplayLabel.TextColor3 = WARNING_COLOR
    keyInfoDisplayLabel.TextSize = 10
    keyInfoDisplayLabel.Font = Enum.Font.Gotham
    keyInfoDisplayLabel.TextWrapped = true
    keyInfoDisplayLabel.Parent = ContentFrame
    
    showNotification("✅ Unlocked", "RX 2.0 Utility is now active. Key expires in 24 hours.")
end

-- Initial UI display
-- The KeyFrame is already parented to MainGui and visible by default. The mainUtilityUI function will be called upon successful key submission.