-- vi: ft=lua

require("git-scripts.utils")

local function printUsage()
    print("Usage:")
    print("send_file <filename> <receiver ID>")
end
 
local args = { ... }
if #args < 2 then
    printUsage()
    return
end

local filename = args[1]
local file = fs.open(filename, "r")
if file == nil then
    print("Error: File not found")
    return
end
content = file.readAll()
local data = {} --pack filename, content
data.filename = filename
data.content = content
data = textutils.serialize(data) --convert to string
file.close()
local receiver = tonumber(args[2])

--init rednet
modemSide = utils.getSideOf("modem")
if modemSide == nil then
    print("Error: No modem detected!")
    return
end
rednet.open(modemSide)

print("Waiting for receiver...")
repeat
    id, msg, sth = rednet.receive("fileRX") --keep waiting
until id == receiver

--receiver is online!
rednet.send(id, data, "fileTX")
print("Sent!")

--finish up
rednet.close(modemSide)