install

-- Auto-generated Nova installer
local root = "https://fozogt-jpg.github.io/NovaShell/os"

local files = {
  -- Lua files (entry points and CraftOS-required files)
  { url = root.."/nova/sys/bios.lua",              path = "/nova/.sys/bios.lua" },
  { url = root.."/nova/sys/shell.lua",             path = "/nova/.sys/shell.lua" },
  { url = root.."/nova/sys/bin/cp.lua",            path = "/nova/.sys/bin/cp.lua" },
  { url = root.."/nova/sys/bin/dir.lua",           path = "/nova/.sys/bin/dir.lua" },
  { url = root.."/nova/sys/bin/ls.lua",            path = "/nova/.sys/bin/ls.lua" },
  { url = root.."/nova/sys/bin/mv.lua",            path = "/nova/.sys/bin/mv.lua" },
  { url = root.."/nova/sys/bin/nam.lua",           path = "/nova/.sys/bin/nam.lua" },
  { url = root.."/nova/sys/bin/rm.lua",            path = "/nova/.sys/bin/rm.lua" },
  { url = root.."/nova/sys/boot/kernel.lua",       path = "/nova/.sys/boot/kernel.lua" },
  { url = root.."/nova/sys/boot/nova.lua",         path = "/nova/.sys/boot/nova.lua" },
  { url = root.."/nova/sys/boot/desktop/gwm.lua",  path = "/nova/.sys/boot/desktop/gwm.lua" },
  { url = root.."/nova/sys/boot/desktop/workspace.lua", path = "/nova/.sys/boot/desktop/workspace.lua" },
  { url = root.."/nova/sys/boot/menu/bootmenu.lua",path = "/nova/.sys/boot/menu/bootmenu.lua" },
  { url = root.."/nova/sys/boot/menu/reboot1.lua", path = "/nova/.sys/boot/menu/reboot1.lua" },
  { url = root.."/nova/sys/boot/menu/shutdown1.lua",path = "/nova/.sys/boot/menu/shutdown1.lua" },
  { url = root.."/nova/sys/desktop/screensaver.lua",path = "/nova/.sys/desktop/screensaver.lua" },
  { url = root.."/nova/sys/utils/autofill.lua",    path = "/nova/.sys/utils/autofill.lua" },
  { url = root.."/nova/sys/utils/loading.lua",     path = "/nova/.sys/utils/loading.lua" },
  { url = root.."/nova/sys/v",                     path = "/nova/.sys/v" },
  { url = root.."/startup.lua",                    path = "startup.lua" },
  -- Nova Script runtime (v5.1+)
  { url = root.."/nova/sys/nv_runtime.lua",        path = "/nova/.sys/nv_runtime.lua" },
  -- Nova Script (.nv) OS files (v5.1+)
  { url = root.."/nova/sys/boot/kernel.nv",        path = "/nova/.sys/boot/kernel.nv" },
  { url = root.."/nova/sys/bios.nv",               path = "/nova/.sys/bios.nv" },
  { url = root.."/nova/sys/boot/nova.nv",          path = "/nova/.sys/boot/nova.nv" },
  { url = root.."/nova/sys/boot/menu/bootmenu.nv", path = "/nova/.sys/boot/menu/bootmenu.nv" },
  { url = root.."/nova/sys/utils/loading.nv",      path = "/nova/.sys/utils/loading.nv" },
  -- CraftOS Compat Layer (v5.1+)
  { url = root.."/nova/sys/bin/COCL.lua",          path = "/nova/.sys/bin/COCL.lua" },
}

-- Default update exclude list
local update_exclude = {
  "",
}

local args = {...}
local mode = args[1] or ""

-- Clean terminal and header
if term and term.clear then term.clear() end
if term and term.setCursorPos then term.setCursorPos(1,1) end
if term and term.setTextColor then term.setTextColor(colors.purple) end
print("Nova Installer")
if term and term.setTextColor then term.setTextColor(colors.white) end

-- Disk handling: target will be /disk or /disk2
local disk_target = nil
if mode == "-d" then
  local function findAvailableDisks()
    local avail = {}
    if fs.exists("/disk") then table.insert(avail, "/disk") end
    if fs.exists("/disk2") then table.insert(avail, "/disk2") end
    return avail
  end

  local avail = findAvailableDisks()
  while #avail == 0 do
    print("No disks mounted at /disk or /disk2. Insert a disk and press Enter to retry, or type 'c' to cancel.")
    local ans = read()
    if ans == "c" then
      print("Disk install cancelled")
      return
    end
    avail = findAvailableDisks()
  end

  if #avail == 1 then
    disk_target = avail[1]
  else
    print("Select target disk:")
    for i, v in ipairs(avail) do
      print(i..") "..v)
    end
    local sel = tonumber(read()) or 1
    disk_target = avail[sel] or avail[1]
  end

  print("Installing to "..disk_target)
  if not fs.exists(disk_target.."/nova") then fs.makeDir(disk_target.."/nova") end
end

-- Ensure HTTP API is available
if not http then
  print("Error: HTTP API disabled")
  return
end

local function ensureDir(p)
  local dir = p:match("(.+)/[^/]+$")
  if dir and not fs.exists(dir) then fs.makeDir(dir) end
end

local function isExcluded(path)
  for _, v in ipairs(update_exclude) do
    if v == path then return true end
  end
  return false
end

local function download(f)
  if mode == "-u" and isExcluded(f.path) then
    print("  Skipping excluded file "..f.path)
    return true
  end

  local writePath = f.path
  if disk_target then
    if f.path == "/startup.lua" then
      writePath = disk_target.."/startup.lua"
    else
      writePath = disk_target..f.path
    end
  end

  if writePath == "/startup.lua" and fs.exists("/startup.lua") then
    print("  Existing startup.lua found. Renaming to startup_old.lua")
    if fs.exists("/startup_old.lua") then fs.delete("/startup_old.lua") end
    fs.move("/startup.lua", "/startup_old.lua")
  elseif fs.exists(writePath) then
    fs.delete(writePath)
  end

  ensureDir(writePath)
  local res = http.get(f.url)
  if not res then
    print("  FAILED to fetch "..f.url)
    return false
  end

  local h = fs.open(writePath, "w")
  h.write(res.readAll())
  h.close()
  res.close()
  return true
end

for _, f in ipairs(files) do
  if not download(f) then
    print("Installation aborted.")
    return
  end
end

if not fs.exists("/nova/packages") then fs.makeDir("/nova/packages") end

print()
print("Installation complete")
if mode ~= "-u" then
  sleep(1.5)
  print("Rebooting...")
  pcall(shell.run, "reboot")
end