-- FEATURE METHODS


function Icon:bindEvent(iconEventName, eventFunction)
	local event = self[iconEventName]
	assert(event and typeof(event) == "table" and event.Connect, "argument[1] must be a valid topbarplus icon event name!")
	assert(typeof(eventFunction) == "function", "argument[2] must be a function!")
	self._bindedEvents[iconEventName] = event:Connect(function(...)
		eventFunction(self, ...)
	end)
	return self
end

function Icon:unbindEvent(iconEventName)
	local eventConnection = self._bindedEvents[iconEventName]
	if eventConnection then
		eventConnection:Disconnect()
		self._bindedEvents[iconEventName] = nil
	end
	return self
end

function Icon:bindToggleKey(keyCodeEnum)
	assert(typeof(keyCodeEnum) == "EnumItem", "argument[1] must be a KeyCode EnumItem!")
	self._bindedToggleKeys[keyCodeEnum] = true
	return self
end

function Icon:unbindToggleKey(keyCodeEnum)
	assert(typeof(keyCodeEnum) == "EnumItem", "argument[1] must be a KeyCode EnumItem!")
	self._bindedToggleKeys[keyCodeEnum] = nil
	return self
end

function Icon:lock()
	self.instances.iconButton.Active = false
	self.locked = true
	task.defer(function()
		-- We do this to prevent the overlay remaining enabled if :lock is called right after an icon is selected
		if self.locked then
			self.overlayLocked = true
		end
	end)
	return self
end

function Icon:unlock()
	self.instances.iconButton.Active = true
	self.locked = false
	self.overlayLocked = false
	return self
end

function Icon:debounce(seconds)
	self:lock()
	task.wait(seconds)
	self:unlock()
	return self
end

function Icon:autoDeselect(bool)
	if bool == nil then
		bool = true
	end
	self.deselectWhenOtherIconSelected = bool
	return self
end

function Icon:setTopPadding(offset, scale)
	local newOffset = offset or 4
	local newScale = scale or 0
	self.topPadding = UDim.new(newScale, newOffset)
	self.updated:Fire()
	return self
end

function Icon:bindToggleItem(guiObjectOrLayerCollector)
	if not guiObjectOrLayerCollector:IsA("GuiObject") and not guiObjectOrLayerCollector:IsA("LayerCollector") then
		error("Toggle item must be a GuiObject or LayerCollector!")
	end
	self.toggleItems[guiObjectOrLayerCollector] = true
	self:updateSelectionInstances()
	return self
end

function Icon:updateSelectionInstances()
	-- This is to assist with controller navigation and selection
	for guiObjectOrLayerCollector, _ in pairs(self.toggleItems) do
		local buttonInstancesArray = {}
		for _, instance in pairs(guiObjectOrLayerCollector:GetDescendants()) do
			if (instance:IsA("TextButton") or instance:IsA("ImageButton")) and instance.Active then
				table.insert(buttonInstancesArray, instance)
			end
		end
		self.toggleItems[guiObjectOrLayerCollector] = buttonInstancesArray
	end
end

function Icon:addBackBlocker(func)
	-- This is custom behaviour that can block the default behaviour of going back or closing a page when Controller B is pressed
	-- If the function returns ``true`` then the B Back behaviour is blocked
	-- This is useful for instance when a user is purchasing an item and you don't want them to return to the previous page
	-- if they pressed B during this pending period
	table.insert(self.blockBackBehaviourChecks, func)
	return self
end

function Icon:unbindToggleItem(guiObjectOrLayerCollector)
	self.toggleItems[guiObjectOrLayerCollector] = nil
	return self
end

function Icon:_setToggleItemsVisible(bool, byIcon)
	for toggleItem, _ in pairs(self.toggleItems) do
		if not byIcon or byIcon.toggleItems[toggleItem] == nil then
			local property = "Visible"
			if toggleItem:IsA("LayerCollector") then
				property = "Enabled"
			end
			toggleItem[property] = bool
		end
	end
end

function Icon:call(func)
	task.spawn(func, self)
	return self
end

function Icon:give(userdata)
	local valueToGive = userdata
	if typeof(userdata) == "function" then
		local returnValue = userdata(self)
		if typeof(userdata) ~= "function" then
			valueToGive = returnValue
		else
			valueToGive = nil
		end
	end
	if valueToGive ~= nil then
		self._maid:give(valueToGive)
	end
	return self
end