--[[
				// NotificationHandler.lua

				// Handles the display of in-app notifications to the users when certain issues are
				// happening. For example, when we're doing an RCC release, we want to let the users
				// know they may experience game join issues

				// TODO: Make this system more generic. Right now this is going to be bare bolts to get
				// working for disabling parties for the update to the new party system.
]]
local CoreGui = game:GetService("CoreGui")
local GuiRoot = CoreGui:FindFirstChild("RobloxGui")
local Modules = GuiRoot:FindFirstChild("Modules")
local ShellModules = Modules:FindFirstChild("Shell")

local TextService = game:GetService('TextService')

local GlobalSettings = require(ShellModules:FindFirstChild('GlobalSettings'))
local Utility = require(ShellModules:FindFirstChild('Utility'))

local function CreateNotificationHandler(parentContainer)
	local this = {}

	local TEXT_PADDING = 4
	local MAX_LENGTH = parentContainer.AbsoluteSize.x * 0.5

	local notificationContainer = Utility.Create'Frame'
	{
		Size = UDim2.new(0, 0, 0, 0);
		Position = UDim2.new(1, 0, 0, 0);
		BackgroundTransparency = 1;
		Visible = false;
		Parent = parentContainer;
	}

	local notificationIcon = Utility.Create'ImageLabel'
	{
		Size = UDim2.new(0, 40, 0, 40);
		Position = UDim2.new(0, 0, 0, 0);
		BackgroundTransparency = 1;
		Image = 'rbxasset://textures/ui/Shell/Icons/AlertIcon.png';
		Parent = notificationContainer;
	}

	local notificationText = Utility.Create"TextLabel"
	{
		Size = UDim2.new(0, 0, 0, 0);
		Position = UDim2.new(0, 52 + TEXT_PADDING, 0, 43/2);
		BackgroundTransparency = 1;
		Text = "";
		TextColor3 = GlobalSettings.WhiteTextColor;
		FontSize = GlobalSettings.DescriptionSize;
		Font = GlobalSettings.RegularFont;
		TextXAlignment = Enum.TextXAlignment.Left;
		TextYAlignment = Enum.TextYAlignment.Center;
		Parent = notificationContainer;
	}

	local function updateLayout()
		local textSize = TextService:GetTextSize(notificationText.Text, Utility.ConvertFontSizeEnumToInt(notificationText.FontSize), notificationText.Font, Vector2.new(0, 0))
		textSize = math.min(textSize.x, MAX_LENGTH)

		local rightAlignOffset = textSize + notificationIcon.Size.X.Offset + TEXT_PADDING
		notificationContainer.Position = UDim2.new(1, -rightAlignOffset, 0, notificationIcon.Size.Y.Offset/2)
	end

	function this:SetVisible(value)
		notificationContainer.Visible = value
	end

	function this:SetText(newText)
		if newText == notificationText.Text then
			return
		end

		notificationText.Text = newText
		updateLayout()
	end

	return this
end

return CreateNotificationHandler