clientside

local side = "top"
local serverid = 20

rednet.open(side)
local tArgs={...}

if #tArgs < 1 or #tArgs > 4 then
    print("fileserv made by Egor305")
    print("Wrong arguments! Try:")
    print("fileserv send <localname> <servername>")
    print("fileserv get [id] <servername> <localname>")
    print("fileserv dir")
    print("fileserv del <servername>")
    return
end

if tArgs[1] == "send" then
    if #tArgs ~= 3 then
        print("Wrong arguments!")
        return
    end
    if not fs.exists(shell.resolve(tArgs[2])) or fs.isDir(shell.resolve(tArgs[2])) then
        print("No such file!")
        return
    end
    fh=fs.open(shell.resolve(tArgs[2]),"r")
    rednet.send(serverid,"$send~!SP!~"..tArgs[3].."~!SP!~"..fh.readAll())
    fh.close()
    repeat
        id,msg = rednet.receive(5)
    until id == serverid or id == nil
    print(id and msg or "ERROR!")
elseif tArgs[1] == "get" then
    if #tArgs == 3 then
        tArgs[4] = tArgs[3]
        tArgs[3] = tArgs[2]
        tArgs[2] = os.getComputerID()
    end
    if #tArgs < 3 then
        print("Wrong arguments!")
        return
    end

    rednet.send(serverid,"$get~!SP!~"..tArgs[2].."~!SP!~"..tArgs[3])
    repeat
        id,msg = rednet.receive(5)
    until id == serverid or id == nil
    if msg == "" or id == nil then
        print("ERROR!")
        return
    end
    fh=fs.open(tArgs[4],"w")
    fh.write(msg)
    fh.close()
    print("All, ok!")
elseif tArgs[1] == "dir" then
    if #tArgs ~= 1 then
        print("Wrong arguments!")
        return
    end
    rednet.send(serverid,"$dir")
    repeat
        id,msg = rednet.receive(5)
    until id == serverid or id == nil
    if id == nil then print("ERROR!") return end
    textutils.pagedTabulate(textutils.unserialize(msg))
elseif tArgs[1] == "del" then
    if #tArgs ~= 2 then
        print("Wrong arguments!")
        return
    end
    rednet.send(serverid,"$del~!SP!~"..tArgs[2])
    repeat
        id,msg = rednet.receive(5)
    until id == serverid or id == nil
    if id == nil then print("ERROR!") return end
    print(msg)
else
    print("No such mode!")
end