solar_client

-- Simple Solar Panel Client - Uses only available methods
local modem = peripheral.find("modem")
local solar = peripheral.wrap("top")

if not modem then
    print("No modem found!")
    return
end

if not solar then
    print("No solar panel found on top!")
    return
end

-- Open wireless channels
modem.open(100)
modem.open(101)

local computerID = os.getComputerID()
print("Solar Client " .. computerID .. " ready")

while true do
    local event, side, channel, replyChannel, message = os.pullEvent("modem_message")

    if channel == 100 and message == "REQUEST_DATA" then
        -- Get only the data we actually have
        local energy = solar.getEnergy() or 0
        local maxEnergy = solar.getMaxEnergy() or 0
        local energyNeeded = solar.getEnergyNeeded() or 0
        local maxOutput = solar.getMaxOutput() or 0

        local data = {
            id = computerID,
            energy = energy,
            maxEnergy = maxEnergy,
            energyNeeded = energyNeeded,
            maxOutput = maxOutput,
            timestamp = os.time()
        }

        modem.transmit(101, 100, data)
        print("ID:" .. computerID .. " Energy:" .. energy .. "/" .. maxEnergy .. " Need:" .. energyNeeded)
    end

    sleep(0.1)
end