-- https://git.l--n.de/justuswolff/cc_housebuild/raw/branch/main/src/main.lua

if not _G["turtle"] then
    error("This program only runs on turtles!")
end

local turtle = _G["turtle"]

print("House building system")
print("JUFS Technologies (c) 2026 (Justus Wolff)")

print("fuel: "..tostring(turtle.getFuelLevel()).."/"..tostring(turtle.getFuelLimit()))

local function reset()
    term.clear()
    term.setCursorPos(1,1)
end
local function incline()
    local x,y = term.getCursorPos()
    term.setCursorPos(x,y+1)
end
function term.setcol(fc, bc)
    term.setTextColor(fc)
    term.setBackgroundColor(bc)
end
local function selopt(options, title)
    reset()
    term.setcol(colors.black, colors.white)
    term.write(title)

    local selected = 1

    while true do
        for i,v in pairs(options) do
            incline()
            if i == selected then
                term.setcol(colors.black, colors.blue)
            else
                term.setcol(colors.white, colors.black)
            end
            term.write(v)
        end

        local event,key = os.pullEvent("key")
        if keys.getName(key) == "w" and selected ~= 1 then
            selected = selected - 1
        end
        if keys.getName(key) == "s" and selected ~= #options then
            selected = selected + 1
        end
        if keys.getName(key) == "enter" then
            return selected
        end
    end
end

local action = selopt({
    "New Design",
    "Print Design"
}, "Select Action")