local pcall = pcall
local RealTime = RealTime
local ScrW = ScrW
local ScrH = ScrH
local IsValid = IsValid

local FullscreenCvar = MediaPlayer.Cvars.Fullscreen

--[[---------------------------------------------------------
	Convar callback
-----------------------------------------------------------]]

local function OnFullscreenConVarChanged( name, old, new )

	new = tobool(new)
	old = tobool(old)

	if new ~= old then
		print("=====================================")
		print("MediaPlayer Fullscreen - Updated Behavior")
		print("=====================================")
		print("")
		print("The 'mediaplayer_fullscreen' ConVar is no longer used.")
		print("")
		print("NEW INSTRUCTIONS:")
		print("  • Look directly at a media player screen")
		print("  • Press F11 to toggle fullscreen for that specific screen")
		print("  • Only the targeted screen will enter fullscreen mode")
		print("  • Other screens will continue playing normally")
		print("")
		print("=====================================")
	end

end
cvars.AddChangeCallback( FullscreenCvar:GetName(), OnFullscreenConVarChanged )

--[[---------------------------------------------------------
	Centralized fullscreen toggle logic
-----------------------------------------------------------]]

function MediaPlayer.ToggleFullscreen( targetMP )
	if not targetMP then
		-- First, check if any media player is already in fullscreen
		for _, mp in pairs(MediaPlayer.List) do
			if mp._isFullscreen then
				targetMP = mp
				break
			end
		end

		-- If no fullscreen player found, find which media player we're looking at
		if not targetMP then
			MediaPlayer.DispatchScreenTrace(function(mp, x, y)
				if not targetMP then
					targetMP = mp
				end
			end)
		end

		-- only toggle if there's an active media player
		if not targetMP then
			return false
		end
	else
		-- targetMP was provided (e.g. context menu). If a different player
		-- is already fullscreen, exit it first.
		for _, mp in pairs(MediaPlayer.List) do
			if mp._isFullscreen and mp ~= targetMP then
				MediaPlayer.ToggleFullscreen(mp)
				break
			end
		end
	end

	-- Toggle fullscreen for this specific player
	targetMP._isFullscreen = not targetMP._isFullscreen
	targetMP._LastMediaUpdate = RealTime()

	-- Update browser size
	local media = targetMP:CurrentMedia()
	if IsValid(media) and IsValid(media.Browser) then
		local w, h = targetMP._isFullscreen and ScrW() or nil, targetMP._isFullscreen and ScrH() or nil
		media.Browser:SetSize(w, h, targetMP._isFullscreen)
	end

	hook.Run(MP.EVENTS.FULLSCREEN_STATE_CHANGED, targetMP._isFullscreen, not targetMP._isFullscreen)

	return true
end

--[[---------------------------------------------------------
	Client controls for toggling fullscreen
-----------------------------------------------------------]]

inputhook.AddKeyPress( KEY_F11, "Toggle MediaPlayer Fullscreen", function()
	MediaPlayer.ToggleFullscreen()
end )


--[[---------------------------------------------------------
	Draw functions
-----------------------------------------------------------]]

function MEDIAPLAYER:DrawFullscreen()

	-- Don't draw if we're not fullscreen
	if not self._isFullscreen then return end

	-- Signal to Draw() that HUDPaint is firing properly
	self._hudPaintFired = true

	local w, h = ScrW(), ScrH()
	local media = self:CurrentMedia()

	if IsValid(media) then

		-- Custom media draw function
		if media.Draw then
			media:Draw( w, h )
		else
			draw.SimpleText( MediaPlayer.L("mp.ui.unsupported_media"), "DermaDefault", w / 2, h / 2, color_white, TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER )
		end

		-- Draw media info
		local succ, err = pcall( self.DrawMediaInfo, self, media, w, h )
		if not succ then
			print( err )
		end

	else

		local browser = MediaPlayer.GetIdlescreen()

		if IsValid(browser) then
			self:DrawHTML( browser, w, h )
		end

	end

end