JyNetAPI

local JyNetChannel = 127
local allFreqs = false
local side,freq,id,message,senderChannel,num,_
local frequencies = {}

function setJyNetChannel(num)
    JyNetChannel = num
end

function getJyNetChannel()
    return JyNetChannel
end

function open(side)
    if peripheral.getType(side) == "modem" then
        peripheral.call(side,"open",JyNetChannel)
        return true
    else
        return false
    end
end

function close(side)
    if peripheral.getType(side) == "modem" then
        peripheral.call(side,"close",JyNetChannel)
        return true
    else
        return false
    end
end

function isOpen(side)
    return peripheral.call(side,"isOpen",JyNetChannel)
end

function openAll()
    for i = 1,6 do
        open(rs.getSides()[i])
    end
end

function closeAll()
    for i = 1,6 do
        close(rs.getSides()[i])
    end
end

function addFreq(freq)
    if not frequencies[freq] then
        frequencies[freq] = true
        return true
    else
        return false
    end
end

function removeFreq(freq)
    if frequencies[freq] then
        frequencies[freq] = false
        return true
    else
        return false
    end
end

function addAll()
    allFreqs = true
end

function removeAll()
    allFreqs = false
end

function getFreq(freq)
    return frequencies[freq]
end

function send(message,freq,side,id)
    message = textutils.serialize{freq,message}
    if peripheral.getType(side) == "modem" then
        peripheral.call(side,"transmit",JyNetChannel,id,message)
        return true
    else
        return false
    end
end

function recieve()
    senderChannel = 0
    freq = nil
    while senderChannel ~= JyNetChannel or not (frequencies[freq] or allFreqs) do
        _,side,senderChannel,id,message = os.pullEvent("modem_message")
        freq = textutils.unserialize(message)[1]
        message = textutils.unserialize(message)[2]
    end
    return message,id,freq,side
end