-- @Title: Spawn Visualizer
-- @Description: Draws spawn radius circles as an overlay on the map
-- @Author: VLL Systems
-- @Version: 1.0.0
-- @AutoRun: true
if not app.hasMap() then
	return
end

-- Register the overlay
app.mapView.addOverlay("spawn_visualizer", {
	enabled = true,
	order = 10,

	ondraw = function(ctx)
		local view = ctx.view
		local map = app.map
		if not map then
			return
		end

		local z = view.z

		-- Scan visible area for spawns
		for y = view.y1, view.y2 do
			for x = view.x1, view.x2 do
				local tile = map:getTile(x, y, z)
				if tile and tile.hasSpawn then
					local spawn = tile.spawn
					local radius = spawn.size

					-- Draw spawn radius as a rectangle outline (circle approximation)
					ctx.rect({
						x = x - radius,
						y = y - radius,
						z = z,
						w = radius * 2 + 1,
						h = radius * 2 + 1,
						filled = false,
						width = 1,
						style = "dashed",
						color = {
							r = 255,
							g = 100,
							b = 100,
							a = 140,
						},
					})

					-- Draw center marker
					ctx.rect({
						x = x,
						y = y,
						z = z,
						w = 1,
						h = 1,
						filled = true,
						color = {
							r = 255,
							g = 50,
							b = 50,
							a = 180,
						},
					})

					-- Draw creature name if present
					if tile.hasCreature then
						local creature = tile.creature
						if creature then
							ctx.text({
								x = x,
								y = y - 1,
								z = z,
								text = creature.name,
								color = {
									r = 255,
									g = 200,
									b = 200,
									a = 220,
								},
							})
						end
					end
				end
			end
		end
	end,

	onhover = function(info)
		local tile = info.tile
		if not tile then
			return nil
		end

		if tile.hasSpawn then
			local spawn = tile.spawn
			local text = "Spawn (radius: " .. spawn.size .. ")"
			if tile.hasCreature then
				local creature = tile.creature
				text = text .. "\n" .. creature.name .. " (spawn: " .. creature.spawnTime .. "s)"
			end
			return {
				tooltip = text,
				highlight = {
					x = tile.x - spawn.size,
					y = tile.y - spawn.size,
					z = tile.z,
					w = spawn.size * 2 + 1,
					h = spawn.size * 2 + 1,
					filled = false,
					width = 2,
					color = {
						r = 255,
						g = 255,
						b = 0,
						a = 180,
					},
				},
			}
		end

		return nil
	end,
})

-- Register toggle in View menu
app.mapView.registerShow("Spawn Radius Overlay", "spawn_visualizer", {
	enabled = true,
})

print("[Spawn Visualizer] Overlay registered. Toggle via View menu.")