-- ███████ ██████  ███████  ██████ ████████
-- ██      ██   ██ ██      ██         ██
-- ███████ ██████  █████   ██         ██
--      ██ ██   ██ ██      ██         ██
-- ███████ ██   ██ ███████  ██████    ██
-- lua parse_params_srect("10")
-- local -- TODO: set this to local once development is finished
function parse_params_srect(params_text)
	local find, _, sn1, ax1, sn2, ax2, len = params_text:find("([+-]?)([xyz]?)%s*([+-]?)([xyz]?)%s*(%d*)")
	
	-- If ax1 is nil set to player facing dir
	if ax1 == "" then ax1 = "get"
	else ax1 = {tonumber(sn1..1),string.lower(ax1)}
	end
	-- If ax2 is nil set to +y
	if ax2 == "" then ax2 = "y" end
	ax2 = {tonumber(sn2..1),string.lower(ax2)}
	
	len = tonumber(len)
	if len == nil then
		return false, "No length specified."
	end
	
	return true, ax1, ax2, len
end
worldedit.register_command("srect", {
	params = "[<axis1> [<axis2>]] <length>",
	description = "Set WorldEdit region position 2 at a set distance along 2 axes.",
	privs = {worldedit=true},
	require_pos = 1,
	parse = function(params_text)
		local values = {parse_params_srect(params_text)}
		return unpack(values)
	end,
	func = function(name, axis1, axis2, len)
		if axis1 == "get" then axis1 = worldeditadditions.player_axis2d(name) end
		
		local pos1 = worldedit.pos1[name]
		local p2 = {["x"] = pos1.x,["y"] = pos1.y,["z"] = pos1.z}
		
		p2[axis1[2]] = p2[axis1[2]] + tonumber(len) * axis1[1]
		p2[axis2[2]] = p2[axis2[2]] + tonumber(len) * axis2[1]
		
		worldedit.pos2[name] = p2
		worldedit.mark_pos2(name)
		worldedit.player_notify(name, "position 2 set to " .. minetest.pos_to_string(p2))
	end,
})

-- Tests
-- params_text = "-x z 13"
-- params_text = "-x a 13"