function Log(fmt, ...)
    str = os.date("[%H:%M:%S] ") .. fmt:format(...) .. "\n"

    file.Append(os.date("log/%m-%d-%y.txt"), str)
end

hook.Add("Initialize", "log", function()
    Log("New map: %s", game.GetMap())
end)

hook.Add("ShutDown", "log", function()
    Log("Server is shutting down/changing levels.")
end)

hook.Add("PlayerSay", "log", function(ply, str)
    Log("%s: %s", ply:GetName(), str)
end)

hook.Add("PlayerConnect", "log", function(name, ip)
    Log("Client %q connected (%s).", name, ip)
end)

hook.Add("PlayerInitialSpawn", "log", function(ply)
    if ply:IsValid() then
        Log("Client %q spawned in server (%s)<%s>.", ply:GetName(), ply:IPAddress(), ply:SteamID())
    end
end)

hook.Add("EntityRemoved", "log", function(ent)
    if ent:IsValid() and ent:IsPlayer() then
        Log("Dropped %q from server <%s>", ent:GetName(), ent:SteamID())
    end
end)

-- prop spawn

hook.Add("PlayerSpawnedProp", "log", function(ply, str)
    Log("%s<%s>: spawned model %s", ply:GetName(), ply:SteamID(), str)
end)

hook.Add("PlayerSpawnedRagdoll", "log", function(ply, str)
    Log("%s<%s>: spawned ragdoll %s", ply:GetName(), ply:SteamID(), str)
end)

hook.Add("PlayerSpawnedEffect", "log", function(ply, str)
    Log("%s<%s>: spawned effect %s", ply:GetName(), ply:SteamID(), str)
end)

hook.Add("PlayerSpawnedSENT", "log", function(ply, ent)
    Log("%s<%s>: spawned sent %s", ply:GetName(), ply:SteamID(), ent:GetClass())
end)

hook.Add("PlayerSpawnedNPC", "log", function(ply, ent)
    Log("%s<%s>: spawned npc %s", ply:GetName(), ply:SteamID(), ent:GetClass())
end)

hook.Add("PlayerSpawnedVehicle", "log", function(ply, ent)
    Log("%s<%s>: spawned vehicle %s", ply:GetName(), ply:SteamID(), ent:GetClass())
end)