gui = require("gridgui")
ccstrings = require("cc.strings")

local burger_storage = peripheral.wrap("minecraft:chest_0")

local menu_options = {
	hamburger = {
		id = "hamburger",
		name = "Steamed Hams",
		description = "normal boring burger, required to be on the menu for legal reasons",
		price = 13.12,
	},
	the_slab = {
		id = "the_slab",
		name = "The Slab",
		description = "Carefully curated human meat (for humans)",
		price = 0.31,
	},
	mega_mega_stack = {
		id = "mega_mega_stack",
		name = "Mega Mega Stack",
		description = "WOW",
		price = 1,
	},
	pickle = {
		id = "pickle",
		name = "Just Pickles",
		description = "Soft on the outside crunchy on the inside",
		price = 70,
	},
	sour_cream = {
		id = "sour_cream",
		name = "Sour cream in a cone",
		price = 50,
		description = "Aged sour cream left out to aerate for 30 hours",
	}
}

local menu_layout = {
	{ menu_options.the_slab,        menu_options.hamburger },
	{ menu_options.mega_mega_stack, menu_options.pickle },
	{ menu_options.sour_cream },
	{ "checkout",                   "clear" }
}

local in_checkout = false
local basket = {}

function draw_menu_item(menu_item, x, y, width, height)
	if type(menu_item) == "table" then
		writeAt(menu_item.name, x + 1, y + 1)
		writeAt(" $" .. tostring(menu_item.price), x + 1, y + 2)
		for i, line in pairs(ccstrings.wrap(menu_item.description, width - 1)) do
			writeAt(line, x + 1, y + 2 + i)
		end
	elseif menu_item == "checkout" then
		writeAt("checkout (" .. #basket .. " items)", x + 1, y + 1)
	elseif menu_item == "clear" then
		writeAt("clear", x + 1, y + 1)
	end
end


function menu_gui()
	gui.setLayout(menu_layout, { 25, 24 }, { 6, 6, 6, 2 })
	while true do
		term.clear()
		term.setCursorPos(1, 1)
		if in_checkout then
			print("checkout:")
			gui.draw(30,3, function(i,x,y) writeAt(i,x+2,y+2) end)
			gui.handleInput(function (c)

			end)
		else
			print("Welcome to Spudsy's!")
			print("menu:")
			gui.draw(0, 2, draw_menu_item)
			gui.handleInput(
				function(button)
					if button.id then
						table.insert(basket, button.id)
					elseif button == "cancel" then
						basket = {}
					elseif button == "checkout" then
						in_checkout = true
						gui.setLayout({{1,2,3},{4,5,6},{9,8,7},{".",0}}, {4,4,4}, {4,4,4,4})
					end
				end
			)
		end
	end
end