client

local tArgs = {...}

print("Beta version of printer client made by 1lann")

local modemPresent = false

for k,v in pairs(rs.getSides()) do
    if peripheral.getType(v) == "modem" then
        modemPresent = true
        rednet.open(v)
        break
    end
end

if not modemPresent then print("No modem found") error() end

local function copyTable(tableid)
    local newTable = {}
    for k,v in pairs(tableid) do
        newTable[k] = v
    end
    return newTable
end

local oldPeripheral = copyTable(peripheral)

end
local printerID = 1
print("Connecting to printer...")
rednet.send(printerID, "printerConnect")
local startClock = os.clock()
success = false
while os.clock() - startClock < 0.2 do
    local id, msg = rednet.receive(0.2)
    if id == printerID and msg == "printerConnectSuccess" then
        success = true
        break
    end
end
if success then
    function peripheral.isPresent(side)
        if side == "left" then
            return true
        else
            return oldPeripheral.isPresent(side)
        end
    end
    function peripheral.getType(side)
        if side == "left" then
            return "printer"
        else
            return oldPeripheral.getType(side)
        end
    end
    function peripheral.getMethods(side)
        if side == "left" then
            return {"write","setCursorPos","getCursorPos","getPageSize","newPage","endPage","getInkLevel","setPageTitle","getPaperLevel"}
        else
            return oldPeripheral.getMethods(side)
        end
    end
    function peripheral.call(side, methodName, p1,p2,p3,p4,p5)
        if side == "left" then
            local tableData = {"callFunction", methodName,p1,p2,p3,p4,p5}
            rednet.send(printerID, textutils.serialize(tableData))
            local time = os.clock()
            local successAction = false
            while os.clock() - time < 1 do
                local rID, msg = rednet.receive(1)
                if rID == printerID then
                    local toBeProcessed = textutils.unserialize(msg)
                    if type(toBeProcessed) == "table" then
                        return unpack(toBeProcessed)
                    else
                        return nil
                    end
                end
            end
            print("Warning: Printer connection lost!")
            return nil
        else
            return oldPeripheral.call(side, methodName, p1,p2,p3,p4,p5)
        end
    end
    print("Printer connected!")
else
    print("Could not connect to printer!")
end