From 3ec2d176417f376f63016fbe74861e0bbec4b038 Mon Sep 17 00:00:00 2001
From: AFCMS <afcm.contact@gmail.com>
Date: Fri, 9 Dec 2022 23:22:50 +0100
Subject: [PATCH] Add `mcl_player_csm` mod to check if a player have the
 official CSM enabled

---
 mods/PLAYER/mcl_player_csm/init.lua | 37 +++++++++++++++++++++++++++++
 mods/PLAYER/mcl_player_csm/mod.conf |  5 ++++
 2 files changed, 42 insertions(+)
 create mode 100644 mods/PLAYER/mcl_player_csm/init.lua
 create mode 100644 mods/PLAYER/mcl_player_csm/mod.conf

diff --git a/mods/PLAYER/mcl_player_csm/init.lua b/mods/PLAYER/mcl_player_csm/init.lua
new file mode 100644
index 000000000..3dfe26712
--- /dev/null
+++ b/mods/PLAYER/mcl_player_csm/init.lua
@@ -0,0 +1,37 @@
+mcl_player_csm = {}
+
+---@type table<string, boolean>
+local activated = {}
+
+---Return whatever player with specified name have official CSM enabled
+---@param name string
+---@return boolean? # `nil` if player not found, boolean overwise
+function mcl_player_csm.is_enabled(name)
+	return activated[name]
+end
+
+minetest.mod_channel_join("mcl_player_csm:activate")
+
+minetest.register_on_modchannel_message(function(channel_name, sender, message)
+	if channel_name == "mcl_player_csm:activate" and message == "activated" then
+		activated[sender] = true
+	end
+end)
+
+minetest.register_on_joinplayer(function(player, last_login)
+	activated[player:get_player_name()] = false
+end)
+
+minetest.register_on_leaveplayer(function(player, timed_out)
+	activated[player:get_player_name()] = nil
+end)
+
+minetest.register_chatcommand("have_csm", {
+	description = "Show whatever player have official CSM enabled",
+	params = "[<name>]",
+	privs = {debug = true},
+	func = function(name, param)
+		local pname = param ~= "" and param or name
+		return true, "Player [" .. pname .. "]: " .. tostring(activated[pname])
+	end
+})
diff --git a/mods/PLAYER/mcl_player_csm/mod.conf b/mods/PLAYER/mcl_player_csm/mod.conf
new file mode 100644
index 000000000..331a75036
--- /dev/null
+++ b/mods/PLAYER/mcl_player_csm/mod.conf
@@ -0,0 +1,5 @@
+name = mcl_player_csm
+description = 
+depends = 
+optional_depends = 
+author = AFCM