local PLUGIN = PLUGIN
PLUGIN.name = "World Item Spawner"
PLUGIN.author = "Calloway" -- ORIGINALLY PUBLISHED BY BLACKTEA, THIS IS A FIXED VERSION
PLUGIN.desc = "World Item Spawner."
PLUGIN.itempoints = PLUGIN.itempoints or {}

PLUGIN.spawngroups = { -- Example is based on HL2RP items.
	["default"] = {
		{"bleach"},
	},
	["example"] = {
		{"ration"},
	},
	["junks"] = { -- for machine plugin.
		{"junk_ws"},
		{"junk_wj"},
		{"junk_be"},
		{"junk_bt"},
		{"junk_p"},
		{"junk_ss"},
		{"junk_bl"},
		{"junk_k"},
		{"junk_p"},
		{"junk_hp"},
		{"junk_ec"},
		{"junk_ej"},
	},
	-- this is an example of a primaries spawngroup
	["primary"] = {
		{"ar2"},
	},
	-- this is an example of a secondary spawngroup
	["secondary"] = {
		{"357"},
		-- {"usp"},
	},
	-- single weapon spawngroups below
	["smg1"] = {
		{"smg1"},
}

PLUGIN.spawnrate = 20 -- in seconds
PLUGIN.maxitems = 10 -- Max items until the spawner stops (every second amount)
PLUGIN.itemsperspawn = 1 -- every item spawn amount in seconds
PLUGIN.spawneditems = PLUGIN.spawneditems or {}

if SERVER then
	local spawntime = 1

	function PLUGIN:ItemShouldSave(entity)
		return (!entity.generated)
	end

	function PLUGIN:Think()
		if spawntime > CurTime() then return end
		spawntime = CurTime() + self.spawnrate
		for k, v in ipairs(self.spawneditems) do
			if (!v:IsValid()) then
				table.remove(self.spawneditems, k)
			end
		end

		if #self.spawneditems >= self.maxitems then return end

		for i = 1, self.itemsperspawn do
			if #self.spawneditems >= self.maxitems then
					table.remove(self.spawneditems)
				return
			end

			local v = table.Random(self.itempoints)

			if (!v) then
				return
			end


			local data = {}
			data.start = v[1]
			data.endpos = data.start + Vector(0, 0, 1)
			data.filter = client
			data.mins = Vector(-16, -16, 0)
			data.maxs = Vector(16, 16, 16)
			local trace = util.TraceHull(data)

			if trace.Entity:IsValid() then
				continue
			end

			local idat = table.Random(self.spawngroups[v[2]] or self.spawngroups["default"])
			nut.item.spawn(idat[1], v[1] + Vector( math.Rand(-8,8), math.Rand(-8,8), 10 ), nil, AngleRand(), idat[2] or {})
		end
	end

	function PLUGIN:LoadData()
		self.itempoints = self:getData() or {}
	end

	function PLUGIN:SaveData()
		self:setData(self.itempoints)
	end

else

	netstream.Hook("nut_DisplaySpawnPoints", function(data)
		for k, v in pairs(data) do
			local emitter = ParticleEmitter( v[1] )
			local smoke = emitter:Add( "sprites/glow04_noz", v[1] )
			smoke:SetVelocity( Vector( 0, 0, 1 ) )
			smoke:SetDieTime(10)
			smoke:SetStartAlpha(255)
			smoke:SetEndAlpha(255)
			smoke:SetStartSize(64)
			smoke:SetEndSize(64)
			smoke:SetColor(255,186,50)
			smoke:SetAirResistance(300)
		end
	end)

end

nut.command.add("itemspawnadd", {
	adminOnly = true,
	syntax = "<string itemgroup>",
	onRun = function(client, arguments)
		local trace = client:GetEyeTraceNoCursor()
		local hitpos = trace.HitPos + trace.HitNormal*5
		local spawngroup = arguments[1] or "default"
		table.insert( PLUGIN.itempoints, { hitpos, spawngroup } )
		client:notify( "You added the".. spawngroup .. " item spawner." )
	end
})

nut.command.add("itemspawnremove", {
	adminOnly = true,
	onRun = function(client, arguments)
		local trace = client:GetEyeTraceNoCursor()
		local hitpos = trace.HitPos + trace.HitNormal*5
		local range = arguments[1] or 128
		local mt = 0
		for k, v in pairs( PLUGIN.itempoints ) do
			local distance = v[1]:Distance( hitpos )
			if distance <= tonumber(range) then
				PLUGIN.itempoints[k] = nil
				mt = mt + 1
			end
		end
		client:notify( mt .. " item spawners has been removed.")
	end
})

nut.command.add("itemspawndisplay", {
	adminOnly = true,
	onRun = function(client, arguments)
		if SERVER then
			netstream.Start(client, "nut_DisplaySpawnPoints", PLUGIN.itempoints)
			client:notify( "Displayed All Points for 10 secs. (i.e Yellow stars on map.)" )
		end
	end
})