--[ Boot Manager

ver = "v3"

local handle = assert(fs.open("osros/system/config.osc", "r"), "Couldn't load the configuration!")
local input = handle.readAll()
handle.close()
local conf = textutils.unserialize(input)
desktopBarColor = conf.dBarC
safeBoot = conf.safeBoot

if safeBoot == "true" then

local function missing()
 term.setBackgroundColor(colors.red)
 term.clear()
 term.setCursorPos(1,1)
 term.setTextColor(1)
 print("One of the system files are missing!")
 print("The operating system will not boot without one.")
 print("Reinstall? [y/n]")
 write("> ")
 local reinstall = read()
 if reinstall == "y" then
  term.clear()
  term.setCursorPos(1,1)
  print("Reinstalling... (NOTHING HAPPENS, COMING IN NEXT VERSION)")
  --COMING SOON
  sleep(1)
  print("Complete.")
  sleep(2)
  os.reboot()
 elseif reinstall == "n" then
  print("Aborting boot.")
  sleep(1)
  shell.run("shell")

 else
  write("> ")
 end
end

term.clear()
term.setCursorPos(1,1)

print("SafeBoot is enabled.")
print("Veryfying system files...")
sleep(0.2)
if fs.exists("osros") then
 else
  missing()
end
if fs.exists("osros/system") then
 else
  missing()
end
if fs.exists("osros/system/desktop.ossf") then
 else
  missing()
end
if fs.exists("osros/system/filemang.ossf") then
 else
  missing()
end
if fs.exists("osros/system/progMang.ossf") then
 else
  missing()
end
if fs.exists("osros/system/settings.ossf") then
 else
  missing()
end
if fs.exists("osros/system/shell.trm") then
 else
  missing()
end

print("Creating session file..")
sleep(0.6)

if fs.exists("osros/system/session.sesf") then
 term.setBackgroundColor(colors.blue)
 term.clear()
 term.setCursorPos(1,1)
 term.setTextColor(colors.red)
 print("Woops! It's already there...")
 print("If you shutdown your computer with")
 print("CRTL+S then ignore this message, otherwise")
 print("your computer may have shutdown in a bad")
 print("way.")
 print("Press any key to boot normally (Booting SHELL)")
local timer1 = os.startTimer(5)
while true do
 event, parameter = os.pullEvent()
 if event == "timer" and parameter == timer1 then
  pressedAKey = false
  break
 elseif event == "key" then
  pressedAKey = true
  break
 end
end

if pressedAKey then
 shell.run("osros/system/desktop.ossf")
else
 term.clear()
 term.setCursorPos(1,1)
 term.setTextColor(colors.yellow)
 print("> Loading SHELL")
 term.setBackgroundColor(colors.black)
 term.clear()
 term.setCursorPos(1,1)
 sleep(0.3)
 shell.run("shell")
end

else
local session = fs.open("osros/system/session.sesf", "w")
session.write("Loaded")
session.close()
shell.run("osros/system/desktop.ossf")
end

elseif safeBoot == "false" then
term.clear()
term.setCursorPos(1,1)
print("SafeBoot is NOT enabled!")
print("Loading OSROS")
sleep(1)
shell.run("osros/system/desktop.ossf")
end