--
-- Playerlist mod
-- By Kaadmy, for Pixture
--

playerlist = {}

playerlist.step = tonumber(minetest.setting_get("playerlist_step")) or 3

-- current players format:
-- {<playername> = <last connect(if connected, or nil)>}
playerlist.players = {}

local function divmod(f, d)
   return {math.floor(f / d), f % d}
end

local function prettytime(time)
   local a = divmod(time, 60)
   local seconds = a[2]
   local minutes = a[1]

   local b = divmod(minutes, 60)
   local hours = b[1]
   minutes = b[2]

   local c = divmod(hours, 24)
   local days = c[1]
   hours = c[2]

   local str = ""
   if days ~= 0 then str = str .. days .. "d " end
   if hours ~= 0 then str = str .. hours .. "h " end
   if minutes ~= 0 then str = str .. minutes .. "m " end
   str = str .. seconds .. "s"

   return str
end

local function on_joinplayer(player)
   local name = player:get_player_name()

   playerlist.players[name] = minetest.get_gametime()
end

local function on_leaveplayer(player)
   local name = player:get_player_name()

   playerlist.players[name] = minetest.get_gametime()
end

minetest.register_on_joinplayer(on_joinplayer)
minetest.register_on_leaveplayer(on_leaveplayer)

minetest.register_chatcommand(
   "plist",
   {
      description = "List players that are connected and have connected since the last server restart",
      func = function(name, param)
		local time = minetest.get_gametime()

		minetest.chat_send_player(name, "Player list:")

		local player_count = 0
		for name, jointime in pairs(playerlist.players) do
		   if minetest.get_player_by_name(name) ~= nil then
		      player_count = player_count + 1
		      minetest.chat_send_player(name, "  " .. name .. ": connected for " .. prettytime(time - jointime))
		   else
		      minetest.chat_send_player(name, "  " .. name .. ": last seen " .. prettytime(time - jointime) .. " ago")
		   end
		end

		minetest.chat_send_player(name, player_count .. " players connected")
	     end
   })
default.log("mod:playerlist", "loaded")