See if it works with an existing plugin

lua/rabbit-buffers/init.lua

@@ -10,19 +10,15 @@ local M = { ---@type Rabbit.Plugin
 	func = {},
 	switch = "b",
 	listing = {},
-	empty_msg = "No opened buffers",
+	empty_msg = "There's nowhere to jump to! Get started by opening another buffer",
 	skip_same = true,
 	keys = {},
 	evt = {},
 
 	---@param p Rabbit.Plugin.Buffers
 	init = function(p)
-		p.listing[0] = {}
-		p.listing.paths = {}
-		-- p.listing.persist = {} --set.clean(set.read(p.memory))
-		-- p.listing.opened = {}
-		-- p.listing.collections = {}
-		-- p.listing.recursive = nil
+		p.listing.last_closed = {}
+		p.listing.opened = {}
 	end,
 
 	---@type Rabbit.Plugin.Buffers.Options
@@ -31,29 +27,35 @@ local M = { ---@type Rabbit.Plugin
 	},
 }
 
-function M.evt.RabbitEnter(_, _)
-	M.listing.paths = nil
-	M.listing[0] = nil
-	local bufs = vim.api.nvim_list_bufs()
-	for _, b in ipairs(bufs) do
-		local path = vim.api.nvim_buf_get_name(b)
-		set.add(M.listing.paths, path)
-		set.add(M.listing[0], path)
+function M.evt.BufEnter(evt, winid)
+	local is_listed = vim.api.nvim_get_option_value("buflisted", { buf = evt.buf })
+	if M.opts.ignore_unlisted and not is_listed then
+		return
 	end
+	set.add(M.listing[winid], evt.buf)
+	set.add(M.listing.opened, evt.buf)
 end
--- function M.evt.BufEnter(evt, winid)
---     local is_listed = vim.api.nvim_get_option_value("buflisted", { buf = evt.buf })
---     if M.opts.ignore_unlisted and not is_listed then
---         return
---     end
---     set.add(M.listing[winid], evt.buf)
---     set.add(M.listing.opened, evt.buf)
--- end
 
--- function M.evt.BufDelete(evt, winid)
---     set.sub(M.listing[winid], evt.buf)
---     set.sub(M.listing.opened, evt.buf)
--- end
+function M.evt.BufDelete(evt, winid)
+	set.sub(M.listing[winid], evt.buf)
+	set.sub(M.listing.opened, evt.buf)
+end
+
+function M.evt.RabbitEnter(_, winid)
+	M.listing[0] = nil
+	if #M.listing[winid] > 1 then
+		return
+	end
+
+	if #M.listing.last_closed > 1 then
+		M.listing[0] = vim.deepcopy(M.listing.last_closed)
+		table.insert(M.listing[0], 1, "rabbitmsg://Restore full history")
+		M.listing.last_closed = {}
+	elseif #M.listing.opened > 1 then
+		M.listing[0] = vim.deepcopy(M.listing.opened)
+		table.insert(M.listing[0], 1, "rabbitmsg://Open all buffers")
+	end
+end
 
 function M.evt.WinClosed(_, winid)
 	if M.listing[winid] ~= nil and #M.listing[winid] > 0 then