From 0c978e43a0f493f33406334fb58bf92ea9fd44e3 Mon Sep 17 00:00:00 2001
From: Elias Fleckenstein <eliasfleckenstein@web.de>
Date: Fri, 19 Feb 2021 10:47:49 +0100
Subject: [PATCH] Add request API

---
 mods/elidragon_request/init.lua | 64 +++++++++++++++++++++++++++++++++
 mods/elidragon_request/mod.conf |  4 +++
 2 files changed, 68 insertions(+)
 create mode 100644 mods/elidragon_request/init.lua
 create mode 100644 mods/elidragon_request/mod.conf

diff --git a/mods/elidragon_request/init.lua b/mods/elidragon_request/init.lua
new file mode 100644
index 0000000..4ee76c5
--- /dev/null
+++ b/mods/elidragon_request/init.lua
@@ -0,0 +1,64 @@
+local request = {}
+
+function request.register(def)
+	local sysname, description, progressive, preposition, func = def.name, def.description, def.progressive, def.func
+	local desc_capitalized = (description:sub(1, 1)):upper() .. description:sub(2)
+
+	local request_pool = {}
+
+	minetest.register_on_leaveplayer(function(name)
+		request_pool[name] = nil
+	end)
+
+	local main_cmd = def.main_cmd or sysname
+
+	minetest.register_chatcommand(main_cmd, {
+		description = "Request to " .. description .. " " .. preposition .. " another player",
+		params = "<player>",
+		func = function(name, param)
+			if param == "" then
+				return false, "Usage: /" .. main_cmd .. " <player>"
+			end
+			if not minetest.get_player_by_name(param) then
+				return false, "There is no player by that name. Keep in mind this is case-sensitive, and the player must be online"
+			end
+			request_pool[param] = name
+			minetest.after(60, function()
+				if request_pool[param] then
+					minetest.chat_send_player(name, "Request timed-out.")
+					minetest.chat_send_player(param, "Request timed-out.")
+					request_pool[param] = nil
+				end
+			end)
+			minetest.chat_send_player(param, name .. " is requesting to " .. description .. " " .. preposition .. " you. /" .. sysname .. "accept to accept")
+			return true, desc_capitalized .. " request sent! It will timeout in 60 seconds."
+		end
+	})
+
+	minetest.register_chatcommand(sysname .. "accept", {
+		description = "Accept " .. description .. " request from another player",
+		func = function(name)
+			if not minetest.get_player_by_name(name) then return false, "You have to be online to use this command" end
+			local other = request_pool[name]
+			if not other then return false, "Usage: /" .. sysname .. "accept allows you to accept " .. description .. " requests sent to you by other players" end
+			if not minetest.get_player_by_name(other) then return false, other .. " doesn't exist, or just disconnected/left (by timeout)." end
+			minetest.chat_send_player(other, desc_capitalized .. " request accepted!")
+			func(name, other)
+			request_pool[name] = nil
+			return true, other .. " is " .. progressive .. " " .. preposition .. " you."
+		end
+	})
+
+	minetest.register_chatcommand(sysname .. "deny", {
+		description = "Deny " .. description .." request from another player",
+		func = function(name)
+			local other = request_pool[name]
+			if not other then return false, "Usage: /" .. sysname .. "deny allows you to deny " .. description .. " requests sent to you by other players." end
+			minetest.chat_send_player(other, desc_capitalized .. " request denied.")
+			request_pool[name] = nil
+			return false, "You denied the " .. description .. " request " .. other .. " sent you."
+		end
+	})
+end
+
+elidragon.request = request
diff --git a/mods/elidragon_request/mod.conf b/mods/elidragon_request/mod.conf
new file mode 100644
index 0000000..c0e1274
--- /dev/null
+++ b/mods/elidragon_request/mod.conf
@@ -0,0 +1,4 @@
+name = elidragon_request
+author = Fleckenstein
+description = A request API used by Elidragon v2 mods
+depends = elidragon
-- 
2.44.0