Some cleaning

src/callbacks.lua

@@ -1,10 +1,15 @@
+local http, storage = ...
+local init_bags = i3.files.bags()
+local fill_caches = i3.files.caches(http)
+local init_detached = i3.files.detached()
 local _, get_inventory_fs = i3.files.gui()
+local init_hud = i3.files.hud()
 local set_fs = i3.set_fs
 
 IMPORT("vec_eq", "vec_round")
 IMPORT("reg_items", "reg_aliases")
 IMPORT("sort", "copy", "insert", "remove", "indexof")
-IMPORT("S", "min", "random", "translate", "ItemStack")
+IMPORT("S", "slz", "min", "random", "translate", "ItemStack")
 IMPORT("fmt", "find", "match", "sub", "lower", "split", "toupper")
 IMPORT("msg", "is_fav", "pos_to_str", "str_to_pos", "add_hud_waypoint", "play_sound", "spawn_item")
 IMPORT("search", "get_sorting_idx", "sort_inventory", "sort_by_category", "get_recipes", "get_detached_inv")
@@ -523,3 +528,140 @@ core.register_on_player_inventory_action(function(player, _, _, info)
 		set_fs(player)
 	end
 end)
+
+if core.global_exists("armor") then
+	i3.modules.armor = true
+	armor:register_on_update(set_fs)
+end
+
+if core.global_exists("skins") then
+	i3.modules.skins = true
+end
+
+if core.global_exists("awards") then
+	i3.modules.awards = true
+
+	core.register_on_craft(function(_, player)
+		set_fs(player)
+	end)
+
+	core.register_on_dignode(function(_, _, player)
+		set_fs(player)
+	end)
+
+	core.register_on_placenode(function(_, _, player)
+		set_fs(player)
+	end)
+
+	core.register_on_chat_message(function(name)
+		local player = core.get_player_by_name(name)
+		set_fs(player)
+	end)
+end
+
+local function disable_inventories()
+	if rawget(_G, "sfinv") then
+		function sfinv.set_player_inventory_formspec() return end
+		sfinv.enabled = false
+	end
+
+	if rawget(_G, "unified_inventory") then
+		function unified_inventory.set_inventory_formspec() return end
+	end
+end
+
+core.register_on_mods_loaded(function()
+	fill_caches()
+	disable_inventories()
+end)
+
+local function get_lang_code(info)
+	return info and info.lang_code
+end
+
+local function get_formspec_version(info)
+	return info and info.formspec_version or 1
+end
+
+local function outdated(name)
+	core.show_formspec(name, "i3_outdated",
+		("size[6.5,1.3]image[0,0;1,1;i3_book.png]label[1,0;%s]button_exit[2.6,0.8;1,1;;OK]"):format(
+		"Your Minetest client is outdated.\nGet the latest version on minetest.net to play the game."))
+end
+
+local function init_data(player, info)
+	local name = player:get_player_name()
+	i3.data[name] = i3.data[name] or {}
+	local data = i3.data[name]
+
+	data.player_name     = name
+	data.filter          = ""
+	data.pagenum         = 1
+	data.items           = i3.init_items
+	data.items_raw       = i3.init_items
+	data.favs            = {}
+	data.sort            = "alphabetical"
+	data.show_setting    = "home"
+	data.ignore_hotbar   = false
+	data.auto_sorting    = false
+	data.reverse_sorting = false
+	data.inv_compress    = true
+	data.export_counts   = {}
+	data.tab             = 1
+	data.itab            = 1
+	data.subcat          = 1
+	data.scrbar_inv      = 0
+	data.lang_code       = get_lang_code(info)
+	data.fs_version      = info.formspec_version
+
+	local inv = player:get_inventory()
+	inv:set_size("main", i3.settings.inv_size)
+
+	core.after(0, set_fs, player)
+end
+
+local function save_data(player_name)
+	local _data = copy(i3.data)
+
+	for name, v in pairs(_data) do
+	for dat in pairs(v) do
+		if not i3.saves[dat] then
+			_data[name][dat] = nil
+
+			if player_name and i3.data[player_name] then
+				i3.data[player_name][dat] = nil -- To free up some memory
+			end
+		end
+	end
+	end
+
+	storage:set_string("data", slz(_data))
+end
+
+core.register_on_joinplayer(function(player)
+	local name = player:get_player_name()
+	local info = core.get_player_information and core.get_player_information(name)
+
+	if not info or get_formspec_version(info) < i3.settings.min_fs_version then
+		return outdated(name)
+	end
+
+	init_data(player, info)
+	init_bags(player)
+	init_detached(player)
+	init_hud(player)
+end)
+
+core.register_on_leaveplayer(function(player)
+	local name = player:get_player_name()
+	save_data(name)
+end)
+
+core.register_on_shutdown(save_data)
+
+local function routine()
+	save_data()
+	core.after(i3.settings.save_interval, routine)
+end
+
+core.after(i3.settings.save_interval, routine)