-- Clear the screen and set up colors
term.clear()
term.setBackgroundColor(colors.black)
term.setTextColor(colors.white)
term.clear()

-- Define the width and height of the screen
local width, height = term.getSize()

-- Helper function to center text on the screen
local function centerText(y, text, textColor)
    local x = math.floor((width - #text) / 2)
    term.setCursorPos(x, y)
    term.setTextColor(textColor)
    term.write(text)
end

-- Helper function to display text at a specific position
local function displayText(x, y, text, textColor)
    term.setCursorPos(x, y)
    term.setTextColor(textColor)
    term.write(text)
end

-- Function to display the error screen
local function displayErrorScreen()
    -- Display the dog ASCII art with red Xes for eyes
    local dogArt = {
        "     |\\_/|                  ",
        "     | X X   RECOVERY ERROR! ",
        "     |   <>              _   ",
        "     |  _/\\------____ ((| |))",
        "     |               `--' |  ",
        " _____|_       ___|   |___.  ",
        "/_/_____/____/_______|       "
    }

    local startLine = math.floor((height - #dogArt) / 2) - 2

    -- Display the dog ASCII art with red Xes for eyes in red
    term.setTextColor(colors.red)
    for i, line in ipairs(dogArt) do
        centerText(startLine + i, line, colors.red)
    end

    -- Display updated error message below the dog ASCII art in white
    term.setTextColor(colors.white)
    centerText(startLine + #dogArt + 2, "System Recovery Disabled", colors.white)
    centerText(startLine + #dogArt + 3, "Error: /recovery/ cannot be mounted", colors.white)

    -- Display "F1 - Ignore" on the left side, closer to the bottom
    displayText(3, height - 2, "F1 - Ignore", colors.white)

    -- Display "F8 - Attempt Repairs" on the right side, closer to the bottom
    displayText(width - #("F8 - Attempt Repairs") - 3, height - 2, "F8 - Attempt Repairs", colors.white)

    -- Wait for user input
    while true do
        local event, key = os.pullEvent("key")
        if key == keys.f1 then
            -- Run BIOS if F1 is pressed
            shell.run("/disk/boot/BIOS")
            break
        elseif key == keys.f8 then
            -- Attempt repairs if F8 is pressed
            shell.run("/disk/error/repair-recovery")
            break
        end
    end
end

-- Main program logic
if fs.exists("/recovery") then
    -- If /recovery exists, run the BIOS
    shell.run("/disk/boot/BIOS")
else
    -- If /recovery does not exist, display the error screen
    displayErrorScreen()
end