-- Function to handle redstone signal at the start
local function checkRedstoneSignal()
    if redstone.getInput("right") then
        shell.run(".emgrec/bootloader")
        return true -- Indicates that the emergency bootloader was executed
    end
    return false -- Indicates no signal was detected
end

-- List of required files
local requiredFiles = {
    "/disk/bootloader/VA11-ILLA.lua",
    "/disk/os/home.lua",
    "/disk/os/lock.lua",
    "/disk/boot/boot-animation",
    "/disk/error/BSOD.lua",
    -- Add more file names as needed
}

-- Function to check if all required files exist
os.pullEvent = os.pullEventRaw

local function checkFiles()
    local missingFiles = {}
    print("
[36m[INFO][0m Checking required files...
")
sleep(1)

    for _, fileName in ipairs(requiredFiles) do
        if fs.exists(fileName) then
            print("[32m[OK][0m " .. fileName)
sleep(0.5)
sleep(0.5)
        else
            print("[31m[MISSING][0m " .. fileName)
sleep(0.5)
sleep(0.5)
            table.insert(missingFiles, fileName)
        end
    end

    return missingFiles
end

-- Main function to execute no-os.lua if files are missing
local function main()
    local missing = checkFiles()

    if #missing > 0 then
        print("
[31m[ERROR][0m Missing files detected! Running no-os.lua...
")
sleep(1)
sleep(1)
        shell.run("no-os")
    else
        print("
[32m[SUCCESS][0m All required files are present! Proceeding with boot...
")
sleep(1)
sleep(1)
        shell.run("/disk/boot/boot-animation")
        -- Add your code to run if all files exist
    end
end

-- Check for redstone signal at the very start
if checkRedstoneSignal() then
    return -- Exit immediately if the emergency bootloader was executed
end

-- Run the main function if no redstone signal was detected
main()