rd

ver = "0.3.5"
-- Checking for directory "Downloads/". Making it if not exists.
if not fs.exists("Downloads/") then
 fs.makeDir("Downloads/")
end
-- Loading 'modemfind'
-- os.loadAPI("/lib/mf")
-- Loading 'craftnet' API
os.loadAPI("/lib/cn")
-- This function makes first GUI.
function bgd()
bg = paintutils.loadImage("rd_b")
paintutils.drawImage(bg, 0, 0)
term.setBackgroundColor(colors.white)
term.setTextColor(colors.black)
term.setCursorPos(50, 1)
print("RD v."..ver)
paintutils.drawPixel(0, 2, colors.white)
end

function clear()
paintutils.drawPixel(0, 1, colors.black)
term.clear()
end

-- I do not want to type 'boolean' ewerywhere so I made a var
s = 'boolean'

textutils.slowPrint("Loading program...")
textutils.slowPrint("Opening modem...")
os.loadAPI("/lib/mf")
textutils.slowPrint("Connecting to the Craftnet...")
ipadd = cn.getIP()
if type(ipadd) == s then
 textutils.slowPrint("Using standard RedNet lib.")
end

bgd()
print("Welcome, user! This is RD(RedNet_Downloader).")
print("Version "..ver)
function getid()
 if type(ipadd) == s then
  yourid = os.computerID()
  yourid = yourid + 0
 else
  yourid = ipadd
 end
end
num = 1
while num <= 2 do
bgd()
print("Type 'exit' for exit.")
print("Do you want to use CraftNet? ('yes'/'no')")
useCn = read()

if useCn == "exit" then
 num = num + 100
 clear()
 break
elseif useCn == 'no' or useCn == 'n' then
 ipadd=false
 getid()
elseif useCn == 'yes' then
 ipadd=cn.getIP()
 getid()
end
print("Your ID: "..yourid)
print("'sender' or 'receiver' and 'downloads'")
write("Program mode: ")
mode = read()
if mode == "downloads" then
gt = 1
while gt == 1 do
bgd()
shell.run("/lib/sr", "/Downloads/")
sleep(0.3)
print("Enter 'menu' for exit in menu.")
print("Enter 'delete' for delete files.")
dls = read()
if dls == "menu" then
 gt = 0
 end
 if dls == "delete" then
 write("Enter name file: ")
 filename = read()
if not fs.exists("/Downloads/"..filename) then
 print("File not found.")
 sleep(1)
 end
 if fs.exists("/Downloads/"..filename) then
 fs.delete("/Downloads/"..filename)
 print("File deleted.")
 sleep(1)
 end
end
clear()
end
end
if mode == "exit" then
 num = num + 100
end
if mode == "sender" then
 write("Enter a path to file: ")
 path = read()
 if type(ipadd) == s then
  write("Enter receiver's ID: ")
  ID = read() + 0
 else
  write("Enter receiver's IP: ")
  ID = read()
 end
 f = fs.open(path, "r")
 if type(ipadd) == s then
  rednet.send(ID, f.readAll())
 else
  cn.send(ID, f.readAll())
 end
 print("File successfully sent!")
 sleep(3)
end
if mode == "receiver" then
 if type(ipadd) == s then
  write("Enter sender's ID: ")
  sID = read() + 0
 else
  write("Enter sender's IP: ")
  sID = read()
 end
 write("Enter the time to listen: ")
 time = read() + 0
 textutils.slowPrint("Please wait "..time.." sec...")
 if type(ipadd) == s then
  id, msg = rednet.receive(time)
 else
  msg, id, _, _ = cn.receive(time)
 end
if id == sID then
 print("Got new file!")
 write("Enter a name for new file: ")
 nfile = read()
 d = fs.open("Downloads/"..nfile, "w")
 d.writeLine(msg)
 print("File successfully downloaded!")
 sleep(3)
else
  print("No new files.")
  sleep(3)
end
end
clear()
end