Merge branch 'refactor/mqtt-data-serialization' into legacy/v3-support

- fix: use tagged enum serialization for TankError
- fix: rename TankInfo fields for consistent naming (volume_ml, pct, water_temp_c)
- renamed some fields for better clarity on contained value

rust/src/hal/battery.rs

@@ -27,20 +27,22 @@ pub trait BatteryInteraction {
 
 #[derive(Debug, Serialize)]
 pub struct BatteryInfo {
-    pub voltage_milli_volt: u16,
-    pub average_current_milli_ampere: i16,
-    pub cycle_count: u16,
-    pub design_milli_ampere_hour: u16,
-    pub remaining_milli_ampere_hour: u16,
-    pub state_of_charge: f32,
-    pub state_of_health: u16,
-    pub temperature: u16,
+    pub voltage_mv: Option<u16>,
+    pub avg_current_ma: Option<i16>,
+    pub soc_pct: Option<f32>,
+    pub soh_pct: Option<u16>,
+    pub temperature_c: Option<u16>,
+    pub cycle_count: Option<u16>,
+    pub remaining_mah: Option<u16>,
+    pub design_mah: Option<u16>,
+    pub error: Option<BatteryError>,
 }
 
 #[derive(Debug, Serialize)]
+#[serde(tag = "kind")]
 pub enum BatteryError {
     NoBatteryMonitor,
-    CommunicationError(String),
+    CommunicationError { message: String },
 }
 
 #[derive(Debug, Serialize)]
@@ -180,14 +182,15 @@ impl BatteryInteraction for BQ34Z100G1 {
 
     async fn get_battery_state(&mut self) -> FatResult<BatteryState> {
         Ok(BatteryState::Info(BatteryInfo {
-            voltage_milli_volt: self.voltage_milli_volt().await?,
-            average_current_milli_ampere: self.average_current_milli_ampere().await?,
-            cycle_count: self.cycle_count().await?,
-            design_milli_ampere_hour: self.design_milli_ampere_hour().await?,
-            remaining_milli_ampere_hour: self.remaining_milli_ampere_hour().await?,
-            state_of_charge: self.state_charge_percent().await?,
-            state_of_health: self.state_health_percent().await?,
-            temperature: self.bat_temperature().await?,
+            voltage_mv: Some(self.voltage_milli_volt().await?),
+            avg_current_ma: Some(self.average_current_milli_ampere().await?),
+            soc_pct: Some(self.state_charge_percent().await?),
+            soh_pct: Some(self.state_health_percent().await?),
+            temperature_c: Some(self.bat_temperature().await?),
+            cycle_count: Some(self.cycle_count().await?),
+            remaining_mah: Some(self.remaining_milli_ampere_hour().await?),
+            design_mah: Some(self.design_milli_ampere_hour().await?),
+            error: None,
         }))
     }
 }

rust/src/main.rs

@@ -26,7 +26,7 @@ use crate::{
     config::BoardVersion::INITIAL,
     hal::{PlantHal, HAL, PLANT_COUNT},
 };
-use ::log::{info, warn, error};
+use ::log::{error, info, warn};
 use alloc::borrow::ToOwned;
 use alloc::string::{String, ToString};
 use alloc::sync::Arc;
@@ -43,7 +43,7 @@ use embassy_time::{Duration, Instant, Timer};
 use esp_hal::rom::ets_delay_us;
 use esp_hal::system::software_reset;
 use esp_println::{logger, println};
-use hal::battery::BatteryState;
+use hal::battery::{BatteryError, BatteryInfo, BatteryState};
 use log::LogMessage;
 use option_lock::OptionLock;
 use plant_state::PlantState;
@@ -122,8 +122,6 @@ pub struct PumpResult {
     pump_time_s: u16,
 }
 
-
-
 async fn safe_main(spawner: Spawner) -> FatResult<()> {
     info!("Startup Rust");
 
@@ -197,10 +195,15 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
         info!("No wifi configured, starting initial config mode");
 
         let esp = board.board_hal.get_esp();
-        let ssid = esp.load_config().await
+        let ssid = esp
+            .load_config()
+            .await
             .map(|config| config.network.ap_ssid.to_string())
             .unwrap_or_else(|_| String::from("PlantCtrl Emergency Mode"));
-        let device = esp.interface_ap.take().context("AP interface already taken")?;
+        let device = esp
+            .interface_ap
+            .take()
+            .context("AP interface already taken")?;
         let stack = network::wifi_ap(ssid, device, &esp.controller, &mut esp.rng, spawner).await?;
 
         let reboot_now = Arc::new(AtomicBool::new(false));
@@ -225,14 +228,18 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
 
         let res = {
             let esp = board.board_hal.get_esp();
-            let ssid = esp.load_config().await
+            let ssid = esp
+                .load_config()
+                .await
                 .map(|config| config.network.ap_ssid.to_string())
                 .unwrap_or_else(|_| String::from("PlantCtrl Emergency Mode"));
             let device = match esp.interface_ap.take() {
                 Some(d) => d,
                 None => {
                     use crate::fat_error::FatError;
-                    return Err(FatError::String { error: "AP interface already taken".to_string() });
+                    return Err(FatError::String {
+                        error: "AP interface already taken".to_string(),
+                    });
                 }
             };
             network::wifi_ap(ssid, device, &esp.controller, &mut esp.rng, spawner).await
@@ -265,9 +272,9 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
     );
 
     if let network::NetworkMode::WIFI { ref ip_address, .. } = network_mode {
-        publish_firmware_info(&mut board, version, ip_address, &timezone_time.to_rfc3339()).await;
-        publish_battery_state(&mut board).await;
-        let _ = publish_mppt_state(&mut board).await;
+        mqtt::publish_firmware_info(&mut board, version, ip_address, &timezone_time.to_rfc3339()).await;
+        mqtt::publish_battery_state(&mut board).await;
+        let _ = mqtt::publish_mppt_state(&mut board).await;
     }
 
     log(
@@ -302,7 +309,7 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
         log(LogMessage::NormalRun, 0, 0, "", "");
     }
 
-    let _dry_run = false;
+    let dry_run = false;
 
     let tank_state = determine_tank_state(&mut board).await;
 
@@ -310,7 +317,7 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
         if let Some(err) = tank_state.got_error(&board.board_hal.get_config().tank) {
             match err {
                 TankError::SensorDisabled => { /* unreachable */ }
-                TankError::SensorMissing(raw_value_mv) => log(
+                TankError::SensorMissing { raw_mv: raw_value_mv } => log(
                     LogMessage::TankSensorMissing,
                     raw_value_mv as u32,
                     0,
@@ -324,8 +331,8 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
                     &format!("{value}"),
                     "",
                 ),
-                TankError::BoardError(err) => {
-                    log(LogMessage::TankSensorBoardError, 0, 0, "", &err.to_string())
+                TankError::BoardError { message: err } => {
+                    log(LogMessage::TankSensorBoardError, 0, 0, "", &err)
                 }
             }
             // disabled cannot trigger this because of wrapping if is_enabled
@@ -339,7 +346,7 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
         }
     }
 
-    let mut _water_frozen = false;
+    let mut water_frozen = false;
     let water_temp: FatResult<f32> = match board.board_hal.get_tank_sensor() {
         Ok(sensor) => sensor.water_temperature_c().await,
         Err(e) => Err(e),
@@ -347,12 +354,12 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
 
     if let Ok(res) = water_temp {
         if res < WATER_FROZEN_THRESH {
-            _water_frozen = true;
+            water_frozen = true;
         }
     }
     info!("Water temp is {}", water_temp.as_ref().unwrap_or(&0.));
 
-    publish_tank_state(&mut board, &tank_state, water_temp).await;
+    mqtt::publish_tank_state(&mut board, &tank_state, water_temp).await;
 
     let plantstate: [PlantState; PLANT_COUNT] = [
         PlantState::read_hardware_state(0, &mut board).await,
@@ -365,76 +372,72 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
         PlantState::read_hardware_state(7, &mut board).await,
     ];
 
-    publish_plant_states(&mut board, &timezone_time.clone(), &plantstate).await;
+    mqtt::publish_plant_states(&mut board, &timezone_time.clone(), &plantstate).await;
 
-    // let pump_required = plantstate
-    //     .iter()
-    //     .zip(&board.board_hal.get_config().plants)
-    //     .any(|(it, conf)| it.needs_to_be_watered(conf, &timezone_time))
-    //     && !water_frozen;
-    // if pump_required {
-    //     log(LogMessage::EnableMain, dry_run as u32, 0, "", "");
-    //     for (plant_id, (state, plant_config)) in plantstate
-    //         .iter()
-    //         .zip(&board.board_hal.get_config().plants.clone())
-    //         .enumerate()
-    //     {
-    //         if state.needs_to_be_watered(plant_config, &timezone_time) {
-    //             let pump_count = board.board_hal.get_esp().consecutive_pump_count(plant_id) + 1;
-    //             board
-    //                 .board_hal
-    //                 .get_esp()
-    //                 .store_consecutive_pump_count(plant_id, pump_count);
-    //
-    //             let pump_ineffective = pump_count > plant_config.max_consecutive_pump_count as u32;
-    //             if pump_ineffective {
-    //                 log(
-    //                     LogMessage::ConsecutivePumpCountLimit,
-    //                     pump_count,
-    //                     plant_config.max_consecutive_pump_count as u32,
-    //                     &(plant_id + 1).to_string(),
-    //                     "",
-    //                 );
-    //                 board.board_hal.fault(plant_id, true).await?;
-    //             }
-    //             log(
-    //                 LogMessage::PumpPlant,
-    //                 (plant_id + 1) as u32,
-    //                 plant_config.pump_time_s as u32,
-    //                 &dry_run.to_string(),
-    //                 "",
-    //             );
-    //             board
-    //                 .board_hal
-    //                 .get_esp()
-    //                 .store_last_pump_time(plant_id, cur);
-    //             board.board_hal.get_esp().last_pump_time(plant_id);
-    //             //state.active = true;
-    //
-    //             pump_info(plant_id, true, pump_ineffective, 0, 0, 0, false).await;
-    //
-    //             let result = do_secure_pump(plant_id, plant_config, dry_run).await?;
-    //             board.board_hal.pump(plant_id, false).await?;
-    //             pump_info(
-    //                 plant_id,
-    //                 false,
-    //                 pump_ineffective,
-    //                 result.median_current_ma,
-    //                 result.max_current_ma,
-    //                 result.min_current_ma,
-    //                 result.error,
-    //             )
-    //             .await;
-    //         } else if !state.pump_in_timeout(plant_config, &timezone_time) {
-    //             // plant does not need to be watered and is not in timeout
-    //             // -> reset consecutive pump count
-    //             board
-    //                 .board_hal
-    //                 .get_esp()
-    //                 .store_consecutive_pump_count(plant_id, 0);
-    //         }
-    //     }
-    // }
+    let pump_required = plantstate
+        .iter()
+        .zip(&board.board_hal.get_config().plants)
+        .any(|(it, conf)| it.needs_to_be_watered(conf, &timezone_time))
+        && !water_frozen;
+    if pump_required {
+        log(LogMessage::EnableMain, dry_run as u32, 0, "", "");
+        for (plant_id, (state, plant_config)) in plantstate
+            .iter()
+            .zip(&board.board_hal.get_config().plants.clone())
+            .enumerate()
+        {
+            if state.needs_to_be_watered(plant_config, &timezone_time) {
+                let pump_count = board.board_hal.get_esp().consecutive_pump_count(plant_id) + 1;
+                board
+                    .board_hal
+                    .get_esp()
+                    .store_consecutive_pump_count(plant_id, pump_count);
+                let pump_ineffective = pump_count > plant_config.max_consecutive_pump_count as u32;
+                if pump_ineffective {
+                    log(
+                        LogMessage::ConsecutivePumpCountLimit,
+                        pump_count,
+                        plant_config.max_consecutive_pump_count as u32,
+                        &(plant_id + 1).to_string(),
+                        "",
+                    );
+                    board.board_hal.fault(plant_id, true).await?;
+                }
+                log(
+                    LogMessage::PumpPlant,
+                    (plant_id + 1) as u32,
+                    plant_config.pump_time_s as u32,
+                    &dry_run.to_string(),
+                    "",
+                );
+                board
+                    .board_hal
+                    .get_esp()
+                    .store_last_pump_time(plant_id, cur);
+                board.board_hal.get_esp().last_pump_time(plant_id);
+                mqtt::pump_info(plant_id, true, pump_ineffective, 0, 0, 0, false).await;
+                let result = do_secure_pump(&mut board, plant_id, plant_config, dry_run).await?;
+                board.board_hal.pump(plant_id, false).await?;
+                mqtt::pump_info(
+                    plant_id,
+                    false,
+                    pump_ineffective,
+                    result.median_current_ma,
+                    result.max_current_ma,
+                    result.min_current_ma,
+                    result.error,
+                )
+                .await;
+            } else if !state.pump_in_timeout(plant_config, &timezone_time) {
+                // plant does not need to be watered and is not in timeout
+                // -> reset consecutive pump count
+                board
+                    .board_hal
+                    .get_esp()
+                    .store_consecutive_pump_count(plant_id, 0);
+            }
+        }
+    }
 
     info!("state of charg");
     let is_day = board.board_hal.is_day();
@@ -558,7 +561,8 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
 
     if stay_alive {
         let reboot_now = Arc::new(AtomicBool::new(false));
-        let _webserver = http_server(reboot_now.clone(), stack.take().unwrap());
+
+        spawner.spawn(http_server(reboot_now.clone(), stack.take().unwrap())?);
         wait_infinity(board, WaitType::MqttConfig, reboot_now.clone(), UTC).await;
     } else {
         //TODO wait for all mqtt publishes?
@@ -699,111 +703,6 @@ async fn update_charge_indicator(
     Ok(())
 }
 
-async fn publish_tank_state(
-    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
-    tank_state: &TankState,
-    water_temp: FatResult<f32>,
-) {
-    let state = serde_json::to_string(
-        &tank_state.as_mqtt_info(&board.board_hal.get_config().tank, &water_temp),
-    )
-    .unwrap();
-    let _ = mqtt::publish("/water", &*state).await;
-}
-
-async fn publish_plant_states(
-    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
-    timezone_time: &DateTime<Tz>,
-    plantstate: &[PlantState; 8],
-) {
-    for (plant_id, (plant_state, plant_conf)) in plantstate
-        .iter()
-        .zip(&board.board_hal.get_config().plants.clone())
-        .enumerate()
-    {
-        let state =
-            serde_json::to_string(&plant_state.to_mqtt_info(plant_conf, timezone_time)).unwrap();
-        let plant_topic = format!("/plant{}", plant_id + 1);
-        let _ = mqtt::publish(&plant_topic, &state).await;
-    }
-}
-
-async fn publish_firmware_info(
-    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
-    version: VersionInfo,
-    ip_address: &str,
-    timezone_time: &str,
-) {
-    mqtt::publish("/firmware/address", ip_address).await;
-    mqtt::publish("/firmware/state", format!("{:?}", &version).as_str())
-        .await;
-    mqtt::publish("/firmware/last_online", timezone_time)
-        .await;
-    mqtt::publish("/state", "online").await;
-}
-async fn pump_info(
-    plant_id: usize,
-    pump_active: bool,
-    pump_ineffective: bool,
-    median_current_ma: u16,
-    max_current_ma: u16,
-    min_current_ma: u16,
-    _error: bool,
-) {
-    let pump_info = mqtt::PumpInfo {
-        enabled: pump_active,
-        pump_ineffective,
-        median_current_ma,
-        max_current_ma,
-        min_current_ma,
-    };
-    let pump_topic = format!("/pump{}", plant_id + 1);
-
-    match serde_json::to_string(&pump_info) {
-        Ok(state) => {
-            let _ = mqtt::publish(&pump_topic, &state).await;
-        }
-        Err(err) => {
-            warn!("Error publishing pump state {}", err);
-        }
-    };
-}
-
-async fn publish_mppt_state(
-    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
-) -> FatResult<()> {
-    let current = board.board_hal.get_mptt_current().await?;
-    let voltage = board.board_hal.get_mptt_voltage().await?;
-    let solar_state = mqtt::Solar {
-        current_ma: current.as_milliamperes() as u32,
-        voltage_ma: voltage.as_millivolts() as u32,
-    };
-    if let Ok(serialized_solar_state_bytes) = serde_json::to_string(&solar_state) {
-        let _ = mqtt::publish("/mppt", &serialized_solar_state_bytes).await;
-    }
-    Ok(())
-}
-
-async fn publish_battery_state(
-    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
-) -> () {
-    let state = board
-        .board_hal
-        .get_battery_monitor()
-        .get_battery_state()
-        .await;
-    let value = match state {
-        Ok(state) => {
-            let json = serde_json::to_string(&state).unwrap().to_owned();
-            json.to_owned()
-        }
-        Err(_) => "error".to_owned(),
-    };
-    {
-        let _ = mqtt::publish("/battery", &*value).await;
-    }
-}
-
 async fn wait_infinity(
     board: MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
     wait_type: WaitType,

rust/src/mqtt.rs

@@ -1,16 +1,23 @@
-use crate::bail;
 use crate::config::NetworkConfig;
 use crate::fat_error::{ContextExt, FatError, FatResult};
-use crate::hal::PlantHal;
+use crate::hal::battery::{BatteryError, BatteryInfo, BatteryState};
+use crate::hal::{PlantHal, HAL};
 use crate::log::{log, LogMessage};
+use crate::plant_state::PlantState;
+use crate::tank::TankState;
+use crate::{bail, VersionInfo};
 use alloc::string::String;
 use alloc::{format, string::ToString};
+use chrono::DateTime;
+use chrono_tz::Tz;
 use core::sync::atomic::Ordering;
 use embassy_executor::Spawner;
 use embassy_net::Stack;
+use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
+use embassy_sync::mutex::MutexGuard;
 use embassy_sync::once_lock::OnceLock;
 use embassy_time::{Duration, Timer, WithTimeout};
-use log::info;
+use log::{info, warn};
 use mcutie::{
     Error, McutieBuilder, McutieReceiver, McutieTask, MqttMessage, PublishDisplay, Publishable,
     QoS, Topic,
@@ -18,21 +25,6 @@ use mcutie::{
 use portable_atomic::AtomicBool;
 use serde::{Deserialize, Serialize};
 
-#[derive(Serialize, Deserialize, Debug, PartialEq, Default)]
-pub struct PumpInfo {
-    pub enabled: bool,
-    pub pump_ineffective: bool,
-    pub median_current_ma: u16,
-    pub max_current_ma: u16,
-    pub min_current_ma: u16,
-}
-
-#[derive(Serialize, Debug, PartialEq)]
-pub struct Solar {
-    pub current_ma: u32,
-    pub voltage_ma: u32,
-}
-
 static MQTT_CONNECTED_EVENT_RECEIVED: AtomicBool = AtomicBool::new(false);
 static MQTT_ROUND_TRIP_RECEIVED: AtomicBool = AtomicBool::new(false);
 pub static MQTT_STAY_ALIVE: AtomicBool = AtomicBool::new(false);
@@ -265,3 +257,142 @@ async fn mqtt_incoming_task(
         }
     }
 }
+
+pub async fn publish_tank_state(
+    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
+    tank_state: &TankState,
+    water_temp: FatResult<f32>,
+) {
+    let state = serde_json::to_string(
+        &tank_state.as_mqtt_info(&board.board_hal.get_config().tank, &water_temp),
+    )
+    .unwrap();
+    let _ = publish("/water", &*state).await;
+}
+
+pub async fn publish_plant_states(
+    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
+    timezone_time: &DateTime<Tz>,
+    plantstate: &[PlantState; 8],
+) {
+    for (plant_id, (plant_state, plant_conf)) in plantstate
+        .iter()
+        .zip(&board.board_hal.get_config().plants.clone())
+        .enumerate()
+    {
+        let state =
+            serde_json::to_string(&plant_state.to_mqtt_info(plant_conf, timezone_time)).unwrap();
+        let plant_topic = format!("/plant{}", plant_id + 1);
+        let _ = publish(&plant_topic, &state).await;
+    }
+}
+
+pub async fn publish_firmware_info(
+    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
+    version: VersionInfo,
+    ip_address: &str,
+    timezone_time: &str,
+) {
+    publish("/firmware/address", ip_address).await;
+    publish("/firmware/state", &serde_json::to_string(&version).unwrap()).await;
+    publish("/firmware/last_online", timezone_time).await;
+    publish("/state", "online").await;
+}
+
+#[derive(Serialize, Deserialize, Debug, PartialEq, Default)]
+struct PumpInfo {
+    pub enabled: bool,
+    pub pump_ineffective: bool,
+    pub median_current_ma: u16,
+    pub max_current_ma: u16,
+    pub min_current_ma: u16,
+}
+
+pub async fn pump_info(
+    plant_id: usize,
+    pump_active: bool,
+    pump_ineffective: bool,
+    median_current_ma: u16,
+    max_current_ma: u16,
+    min_current_ma: u16,
+    _error: bool,
+) {
+    let pump_info = PumpInfo {
+        enabled: pump_active,
+        pump_ineffective,
+        median_current_ma,
+        max_current_ma,
+        min_current_ma,
+    };
+    let pump_topic = format!("/pump{}", plant_id + 1);
+
+    match serde_json::to_string(&pump_info) {
+        Ok(state) => {
+            let _ = publish(&pump_topic, &state).await;
+        }
+        Err(err) => {
+            warn!("Error publishing pump state {}", err);
+        }
+    };
+}
+
+#[derive(Serialize, Debug, PartialEq)]
+pub struct Solar {
+    pub current_ma: u32,
+    pub voltage_ma: u32,
+}
+
+pub async fn publish_mppt_state(
+    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
+) -> FatResult<()> {
+    let current = board.board_hal.get_mptt_current().await?;
+    let voltage = board.board_hal.get_mptt_voltage().await?;
+    let solar_state = Solar {
+        current_ma: current.as_milliamperes() as u32,
+        voltage_ma: voltage.as_millivolts() as u32,
+    };
+    if let Ok(serialized_solar_state_bytes) = serde_json::to_string(&solar_state) {
+        let _ = publish("/mppt", &serialized_solar_state_bytes).await;
+    }
+    Ok(())
+}
+
+pub async fn publish_battery_state(
+    board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'static>>,
+) -> () {
+    let telemetry = match board
+        .board_hal
+        .get_battery_monitor()
+        .get_battery_state()
+        .await
+    {
+        Ok(BatteryState::Info(info)) => info,
+        Ok(BatteryState::Unknown) => BatteryInfo {
+            voltage_mv: None,
+            avg_current_ma: None,
+            soc_pct: None,
+            soh_pct: None,
+            temperature_c: None,
+            cycle_count: None,
+            remaining_mah: None,
+            design_mah: None,
+            error: Some(BatteryError::NoBatteryMonitor),
+        },
+        Err(e) => BatteryInfo {
+            voltage_mv: None,
+            avg_current_ma: None,
+            soc_pct: None,
+            soh_pct: None,
+            temperature_c: None,
+            cycle_count: None,
+            remaining_mah: None,
+            design_mah: None,
+            error: Some(BatteryError::CommunicationError {
+                message: alloc::format!("{:?}", e),
+            }),
+        },
+    };
+    if let Ok(json) = serde_json::to_string(&telemetry) {
+        let _ = publish("/battery", &json).await;
+    }
+}

rust/src/plant_state.rs

@@ -11,11 +11,12 @@ use serde::{Deserialize, Serialize};
 const MOIST_SENSOR_MAX_FREQUENCY: f32 = 7500.; // 60kHz (500Hz margin)
 const MOIST_SENSOR_MIN_FREQUENCY: f32 = 150.; // this is really, really dry, think like cactus levels
 
-#[derive(Debug, PartialEq, Serialize)]
+#[derive(Debug, PartialEq, Clone, Serialize)]
+#[serde(tag = "kind")]
 pub enum MoistureSensorError {
     ShortCircuit { hz: f32, max: f32 },
     OpenLoop { hz: f32, min: f32 },
-    BoardError(String),
+    BoardError { message: String },
 }
 
 #[derive(Debug, PartialEq, Serialize)]
@@ -49,6 +50,14 @@ impl MoistureSensorState {
 impl MoistureSensorState {}
 
 #[derive(Debug, PartialEq, Serialize)]
+pub struct SensorTelemetry {
+    pub moisture_pct: Option<f32>,
+    pub raw_hz: Option<f32>,
+    pub error: Option<MoistureSensorError>,
+}
+
+#[derive(Debug, PartialEq, Serialize)]
+#[serde(tag = "kind")]
 pub enum PumpError {
     PumpNotWorking {
         failed_attempts: usize,
@@ -134,9 +143,9 @@ impl PlantState {
                     },
                     Err(err) => MoistureSensorState::SensorError(err),
                 },
-                Err(err) => MoistureSensorState::SensorError(MoistureSensorError::BoardError(
-                    err.to_string(),
-                )),
+                Err(err) => MoistureSensorState::SensorError(MoistureSensorError::BoardError {
+                    message: err.to_string(),
+                })
             }
         } else {
             MoistureSensorState::Disabled
@@ -159,9 +168,9 @@ impl PlantState {
                     },
                     Err(err) => MoistureSensorState::SensorError(err),
                 },
-                Err(err) => MoistureSensorState::SensorError(MoistureSensorError::BoardError(
-                    err.to_string(),
-                )),
+                Err(err) => MoistureSensorState::SensorError(MoistureSensorError::BoardError {
+                    message: err.to_string(),
+                })
             }
         } else {
             MoistureSensorState::Disabled
@@ -277,19 +286,21 @@ impl PlantState {
         &self,
         plant_conf: &PlantConfig,
         current_time: &DateTime<Tz>,
-    ) -> PlantInfo<'_> {
+    ) -> PlantInfo {
+        let (moisture_pct, _) = self.plant_moisture();
         PlantInfo {
-            sensor_a: &self.sensor_a,
-            sensor_b: &self.sensor_b,
+            moisture_pct,
+            sensor_a: Self::sensor_to_telemetry(&self.sensor_a),
+            sensor_b: Self::sensor_to_telemetry(&self.sensor_b),
             mode: plant_conf.mode,
             do_water: self.needs_to_be_watered(plant_conf, current_time),
-            dry: if let Some(moisture_percent) = self.plant_moisture().0 {
+            dry: if let Some(moisture_percent) = moisture_pct {
                 moisture_percent < plant_conf.target_moisture
             } else {
                 false
             },
             cooldown: self.pump_in_timeout(plant_conf, current_time),
-            out_of_work_hour: in_time_range(
+            out_of_work_hour: !in_time_range(
                 current_time,
                 plant_conf.pump_hour_start,
                 plant_conf.pump_hour_end,
@@ -316,15 +327,40 @@ impl PlantState {
             },
         }
     }
+
+    fn sensor_to_telemetry(sensor: &MoistureSensorState) -> SensorTelemetry {
+        match sensor {
+            MoistureSensorState::Disabled => SensorTelemetry {
+                moisture_pct: None,
+                raw_hz: None,
+                error: None,
+            },
+            MoistureSensorState::MoistureValue {
+                raw_hz,
+                moisture_percent,
+            } => SensorTelemetry {
+                moisture_pct: Some(*moisture_percent),
+                raw_hz: Some(*raw_hz),
+                error: None,
+            },
+            MoistureSensorState::SensorError(err) => SensorTelemetry {
+                moisture_pct: None,
+                raw_hz: None,
+                error: Some(err.clone()),
+            },
+        }
+    }
 }
 
 #[derive(Debug, PartialEq, Serialize)]
 /// State of a single plant to be tracked
-pub struct PlantInfo<'a> {
+pub struct PlantInfo {
+    /// combined plant moisture from available sensors
+    moisture_pct: Option<f32>,
     /// state of humidity sensor on bank a
-    sensor_a: &'a MoistureSensorState,
+    sensor_a: SensorTelemetry,
     /// state of humidity sensor on bank b
-    sensor_b: &'a MoistureSensorState,
+    sensor_b: SensorTelemetry,
     /// configured plant watering mode
     mode: PlantWateringMode,
     /// the plant needs to be watered

rust/src/tank.rs

@@ -10,11 +10,12 @@ const OPEN_TANK_VOLTAGE: f32 = 3.0;
 pub const WATER_FROZEN_THRESH: f32 = 4.0;
 
 #[derive(Debug, Clone, Serialize)]
+#[serde(tag = "kind")]
 pub enum TankError {
     SensorDisabled,
-    SensorMissing(f32),
+    SensorMissing { raw_mv: f32 },
     SensorValueError { value: f32, min: f32, max: f32 },
-    BoardError(String),
+    BoardError { message: String },
 }
 
 pub enum TankState {
@@ -25,7 +26,7 @@ pub enum TankState {
 
 fn raw_voltage_to_divider_percent(raw_value_mv: f32) -> Result<f32, TankError> {
     if raw_value_mv > OPEN_TANK_VOLTAGE {
-        return Err(TankError::SensorMissing(raw_value_mv));
+        return Err(TankError::SensorMissing { raw_mv: raw_value_mv });
     }
 
     let r2 = raw_value_mv * 50.0 / (3.3 - raw_value_mv);
@@ -141,15 +142,15 @@ impl TankState {
         TankInfo {
             enough_water,
             warn_level,
-            left_ml,
+            volume_ml: left_ml,
             sensor_error: tank_err,
-            raw,
+            fill_raw_v: raw,
             water_frozen: water_temp
                 .as_ref()
                 .is_ok_and(|temp| *temp < WATER_FROZEN_THRESH),
-            water_temp: water_temp.as_ref().copied().ok(),
+            water_temp_c: water_temp.as_ref().copied().ok(),
             temp_sensor_error: water_temp.as_ref().err().map(|err| err.to_string()),
-            percent,
+            fill_pct: percent,
         }
     }
 }
@@ -164,7 +165,7 @@ pub async fn determine_tank_state(
             .and_then(|f| core::prelude::v1::Ok(f.tank_sensor_voltage()))
         {
             Ok(raw_sensor_value_mv) => TankState::Present(raw_sensor_value_mv.await.unwrap()),
-            Err(err) => TankState::Error(TankError::BoardError(err.to_string())),
+            Err(err) => TankState::Error(TankError::BoardError { message: err.to_string() }),
         }
     } else {
         TankState::Disabled
@@ -179,16 +180,16 @@ pub struct TankInfo {
     /// warning that water needs to be refilled soon
     pub(crate) warn_level: bool,
     /// estimation how many ml are still in the tank
-    pub(crate) left_ml: Option<f32>,
+    pub(crate) volume_ml: Option<f32>,
     /// if there is an issue with the water level sensor
     pub(crate) sensor_error: Option<TankError>,
     /// raw water sensor value
-    pub(crate) raw: Option<f32>,
+    pub(crate) fill_raw_v: Option<f32>,
     /// percent value
-    pub(crate) percent: Option<f32>,
+    pub(crate) fill_pct: Option<f32>,
     /// water in the tank might be frozen
     pub(crate) water_frozen: bool,
     /// water temperature
-    pub(crate) water_temp: Option<f32>,
+    pub(crate) water_temp_c: Option<f32>,
     pub(crate) temp_sensor_error: Option<String>,
 }

rust/src/webserver/mod.rs

@@ -221,12 +221,18 @@ where
     let mut data_store = Vec::new();
     let mut total_read = 0;
     loop {
+        let left = max_read - total_read;
         let mut buf = [0_u8; 64];
-        let read = request.read(&mut buf).await?;
+        let s_buf = if buf.len() <= left {
+            &mut buf
+        } else {
+            &mut buf[0..left]
+        };
+        let read = request.read(s_buf).await?;
         if read == 0 {
             break;
         }
-        let actual_data = &buf[0..read];
+        let actual_data = &s_buf[0..read];
         total_read += read;
         if total_read > max_read {
             bail!("Request too large {total_read} > {max_read}");