menu test

--[[ Local Variables ]]--

local termWidth, termHeight = term.getSize()
local selectedItem = 1
local InMainMenu = true
local InAdminMenu = false
local InCartMenu = false

--[[ Menu Methods ]]--
function Choice1()
        InCartMenu = true
        selectedItem = 1
        while InCartMenu do
                term.clear()
                term.setCursorPos(1,1)
                printMenu(CartMenu)

                event, key = os.pullEvent("key")
                onKeyPressed(key, CartMenu)
        end
end

function Choice2()
        InAdminMenu = true
        selectedItem = 1
        while InAdminMenu do
                term.clear()
                term.setCursorPos(1,1)
                printMenu(AdminMenu)

                event, key = os.pullEvent("key")
                onKeyPressed(key, AdminMenu)
        end
end

function login()
      InCartMenu = true
        selectedItem = 1
        while InCartMenu do
                term.clear()
                term.setCursorPos(1,1)
                printMenu(CartMenu)

                event, key = os.pullEvent("key")
                onKeyPressed(key, CartMenu)
        end
end

function Exit()
        InMainMenu = false
end

function lime()

end

function red()

end

function green()

end

function blue()
end


--[[ Menu Definitions ]]--

MainMenu = {
        [1] = { text = "Mannage carts ", handler = Choice1 },
        [2] = { text = "adimn area", handler = Choice2 },
        [3] = { text = "Exit", handler = Exit }
}

Adminmenu = {
        [1] = { text = "login", handler = login },
        [2] = { text = "exit", handler = Exit }
}
Cartmenu = {
        [1] = { text = "lime", handler = lime },
        [2] = { text = "red", handler = red },
        [3] = { text = "blue", handler = blue },
        [4] = { text = "green", handler = green }
}


--[[ Printing Methods ]]--

function printMenu(menu)
        for i=1, #menu do
                if i == selectedItem then
                        print (">> "..menu[i].text)
                else
                        print ("   "..menu[i].text)
                end
        end
end

--[[ Handler Methods ]]--

function onKeyPressed( key, menu )
        if key == keys.enter then
                onItemSelected(menu)
        elseif key == keys.up then
                if selectedItem > 1 then
                        selectedItem = selectedItem -1
                end
        elseif key == keys.down then
                if selectedItem < #menu then
                        selectedItem = selectedItem +1
                end
        end
end

function onItemSelected( menu )
        menu[selectedItem].handler()
end

--[[ Main Method ]]--

function main()
        while InMainMenu do
                term.clear()
                term.setCursorPos(1,1)
                printMenu(MainMenu)

                event, key = os.pullEvent("key")
                onKeyPressed(key, MainMenu)
        end
end

main()