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use crate::obis::*;
use crate::types::*;
#[derive(Default, Debug)]
pub struct MeterReading {
pub to: Option<f64>,
pub by: Option<f64>,
}
#[derive(Default, Debug)]
pub struct Line {
pub voltage_sags: Option<u64>,
pub voltage_swells: Option<u64>,
pub voltage: Option<f64>,
pub current: Option<u64>,
pub active_power_plus: Option<f64>,
pub active_power_neg: Option<f64>,
}
#[derive(Default, Debug)]
pub struct Slave {
pub device_type: Option<u64>,
pub meter_reading: Option<(TST, f64)>,
}
#[derive(Default, Debug)]
pub struct State {
pub datetime: Option<TST>,
pub meterreadings: [MeterReading; 2],
pub tariff_indicator: Option<[u8; 2]>,
pub power_delivered: Option<f64>,
pub power_received: Option<f64>,
pub power_failures: Option<u64>,
pub long_power_failures: Option<u64>,
pub lines: [Line; 3],
pub slaves: [Slave; 4],
}
impl<'a> core::convert::From<&crate::Telegram<'a>> for crate::Result<State> {
fn from(t: &crate::Telegram<'a>) -> Self {
t.objects().try_fold(State::default(), |mut state, o| {
match o? {
OBIS::DateTime(tst) => {
state.datetime = Some(tst);
}
OBIS::MeterReadingTo(t, mr) => {
state.meterreadings[t as usize].to = Some(f64::from(&mr));
}
OBIS::MeterReadingBy(t, mr) => {
state.meterreadings[t as usize].by = Some(f64::from(&mr));
}
OBIS::TariffIndicator(ti) => {
let mut buf = [0u8; 2];
let mut octets = ti.as_octets();
buf[0] = octets.next().unwrap_or(Err(crate::Error::InvalidFormat))?;
buf[1] = octets.next().unwrap_or(Err(crate::Error::InvalidFormat))?;
state.tariff_indicator = Some(buf);
}
OBIS::PowerDelivered(p) => {
state.power_delivered = Some(f64::from(&p));
}
OBIS::PowerReceived(p) => {
state.power_received = Some(f64::from(&p));
}
OBIS::PowerFailures(UFixedInteger(pf)) => {
state.power_failures = Some(pf);
}
OBIS::LongPowerFailures(UFixedInteger(lpf)) => {
state.long_power_failures = Some(lpf);
}
OBIS::VoltageSags(l, UFixedInteger(n)) => {
state.lines[l as usize].voltage_sags = Some(n);
}
OBIS::VoltageSwells(l, UFixedInteger(n)) => {
state.lines[l as usize].voltage_swells = Some(n);
}
OBIS::InstantaneousVoltage(l, v) => {
state.lines[l as usize].voltage = Some(f64::from(&v));
}
OBIS::InstantaneousCurrent(l, UFixedInteger(a)) => {
state.lines[l as usize].current = Some(a);
}
OBIS::InstantaneousActivePowerPlus(l, p) => {
state.lines[l as usize].active_power_plus = Some(f64::from(&p));
}
OBIS::InstantaneousActivePowerNeg(l, p) => {
state.lines[l as usize].active_power_neg = Some(f64::from(&p));
}
OBIS::SlaveDeviceType(s, UFixedInteger(dt)) => {
state.slaves[s as usize].device_type = Some(dt);
}
OBIS::SlaveMeterReading(s, tst, mr) => {
state.slaves[s as usize].meter_reading = Some((tst, f64::from(&mr)));
}
_ => {}
}
Ok(state)
})
}
}
#[cfg(test)]
mod tests {
#[test]
fn example() {
let mut buffer = [0u8; 2048];
let file = std::fs::read("test/telegram.txt").unwrap();
let (left, _right) = buffer.split_at_mut(file.len());
left.copy_from_slice(file.as_slice());
let readout = crate::Readout { buffer };
let telegram = readout.to_telegram().unwrap();
let state = crate::Result::<crate::state::State>::from(&telegram).unwrap();
assert_eq!(
state.datetime.as_ref().unwrap(),
&crate::types::TST {
year: 19,
month: 3,
day: 20,
hour: 18,
minute: 14,
second: 3,
dst: false
}
);
use crate::obis::Tariff::*;
assert_eq!(state.meterreadings[Tariff1 as usize].to.unwrap(), 576.239);
assert_eq!(state.meterreadings[Tariff2 as usize].to.unwrap(), 465.162);
assert_eq!(state.tariff_indicator.unwrap(), [0, 2]);
eprintln!("{:?}", state);
}
}