local core = require("core")
local menu = require("menu")

menu.default = {
	entries = {
		{
			entry_type = core.MENU_ENTRY,
			name = "Boot",
			func = core.boot,
		},
		{
			entry_type = core.MENU_CAROUSEL_ENTRY,
			carousel_id = "unique_boot_entry_name",
			items = {"NO", "YES"},
			name = function(_, choice, _)
				return "Option: " .. choice
			end,
			func = function(_, _, _)
				loader.setenv("some_envvar", "some_value")
			end,
		},
	},
}

local core = require("core")
local menu = require("menu")

local my_entry = {
	entry_type = core.MENU_ENTRY,
	name = "Fancy Boot",
	func = core.boot,
},

local stock_entries = menu.welcome.entries
function menu.welcome.entries()
	local ents = stock_entries()
	ents[#ents + 1] = my_entry
	return ents
end

local core = require("core")
local menu = require("menu")

-- Fill in with vendor specific entries
local vendor_options = {
	entries = {
	...
	},
}

local welcome_entries = menu.welcome.all_entries
welcome_entries.vendor = {
        entry_type = core.MENU_SUBMENU,
        name = color.highlight("V") .. "endor Options",
        submenu = vendor_options,
        alias = {"v", "V"},
	visible = function()
		return true
	end,
}

-- This is a silly example that rotates local_option through the values
-- 0 to 4.  local_option would still need to be used elsewhere.
local local_option = 0

-- The `entries` of a menu may either be a table or a function.  In this
-- example we're augmenting a menu that just has a static table, but if we
-- wanted to be more robust then we would need to instead check the type
-- of `stock_options` here to determine our next move.
--
-- If `entries` is a table, then the stock menu system won't be changing it
-- so we can just add our menu option as we do below.
--
-- If `entries` is a function, then we would need to provide a new function to
-- replace `entries` that does a core.deepCopyTable() of the result and adds
-- the below item to it.  The deep copy is necessary to avoid duplicating our
-- new menu item and allowing the menu to alter its behavior however it pleases.
local stock_options = menu.boot_options.entries
stock_options[#stock_options + 1] = {
	entry_type = core.MENU_ENTRY,
	name = function()
		return color.highlight('L') ..
		    "ocal Option     : " .. local_option
	end,
	func = function()
		local_option = (local_option + 1) % 5
	end,
	alias= {"l", "L"}
}