use std::{ env, sync::{atomic::AtomicBool, Arc, Mutex}, }; use chrono::{DateTime, Datelike, Duration, NaiveDateTime, Timelike}; use chrono_tz::{Europe::Berlin, Tz}; use config::Plant; use esp_idf_hal::delay::Delay; use esp_idf_sys::{ esp_deep_sleep, esp_restart, gpio_deep_sleep_hold_dis, gpio_deep_sleep_hold_en, vTaskDelay, CONFIG_FREERTOS_HZ, }; use log::error; use once_cell::sync::Lazy; use plant_hal::{CreatePlantHal, PlantCtrlBoard, PlantCtrlBoardInteraction, PlantHal, PLANT_COUNT}; use serde::{Deserialize, Serialize}; use crate::{ config::{Config, WifiConfig}, espota::rollback_and_reboot, webserver::webserver::{httpd, httpd_initial}, }; mod config; pub mod espota; pub mod plant_hal; const MOIST_SENSOR_MAX_FREQUENCY: u32 = 5200; // 60kHz (500Hz margin) const MOIST_SENSOR_MIN_FREQUENCY: u32 = 500; // 0.5kHz (500Hz margin) const FROM: (f32, f32) = ( MOIST_SENSOR_MIN_FREQUENCY as f32, MOIST_SENSOR_MAX_FREQUENCY as f32, ); const TO: (f32, f32) = (0_f32, 100_f32); pub static BOARD_ACCESS: Lazy> = Lazy::new(|| PlantHal::create().unwrap()); pub static STAY_ALIVE: Lazy = Lazy::new(|| AtomicBool::new(false)); mod webserver { pub mod webserver; } #[derive(Serialize, Deserialize, Copy, Clone, Debug, PartialEq)] enum OnlineMode { Offline, Wifi, SnTp, Online, } #[derive(Serialize, Deserialize, Copy, Clone, Debug, PartialEq)] enum WaitType { InitialConfig, FlashError, NormalConfig, StayAlive, } #[derive(Serialize, Deserialize, Copy, Clone, Debug, PartialEq, Default)] struct LightState { active: bool, out_of_work_hour: bool, battery_low: bool, is_day: bool, } #[derive(Serialize, Deserialize, Copy, Clone, Debug, PartialEq, Default)] struct PlantState { a: Option, b: Option, p: Option, after_p: Option, do_water: bool, frozen: bool, dry: bool, active: bool, pump_error: bool, not_effective: bool, cooldown: bool, no_water: bool, sensor_error_a: Option, sensor_error_b: Option, sensor_error_p: Option, out_of_work_hour: bool, } #[derive(Serialize, Deserialize, Copy, Clone, Debug, PartialEq)] enum SensorError { Unknown, ShortCircuit { hz: f32, max: f32 }, OpenCircuit { hz: f32, min: f32 }, } #[derive(Serialize, Deserialize, Copy, Clone, Debug, PartialEq, Default)] struct TankState { enough_water: bool, left_ml: u32, sensor_error: bool, raw: u16, } fn safe_main() -> anyhow::Result<()> { // It is necessary to call this function once. Otherwise some patches to the runtime // implemented by esp-idf-sys might not link properly. See https://github.com/esp-rs/esp-idf-template/issues/71 esp_idf_svc::sys::link_patches(); // Bind the log crate to the ESP Logging facilities esp_idf_svc::log::EspLogger::initialize_default(); if esp_idf_sys::CONFIG_MAIN_TASK_STACK_SIZE < 20000 { error!( "stack too small: {} bail!", esp_idf_sys::CONFIG_MAIN_TASK_STACK_SIZE ); return Ok(()); } log::info!("Startup Rust"); let git_hash = env!("VERGEN_GIT_DESCRIBE"); println!("Version useing git has {}", git_hash); let partition_state: embedded_svc::ota::SlotState = embedded_svc::ota::SlotState::Unknown; match esp_idf_svc::ota::EspOta::new() { Ok(ota) => { //match ota.get_running_slot(){ // Ok(slot) => { // partition_state = slot.state; // println!( // "Booting from {} with state {:?}", // slot.label, partition_state // ); //}, // Err(err) => { // println!("Error getting running slot {}", err); // }, //} } Err(err) => { println!("Error obtaining ota info {}", err); } } println!("Board hal init"); let mut board: std::sync::MutexGuard<'_, PlantCtrlBoard<'_>> = BOARD_ACCESS.lock().unwrap(); println!("Mounting filesystem"); board.mount_file_system()?; let free_space = board.file_system_size()?; println!( "Mounted, total space {} used {} free {}", free_space.total_size, free_space.used_size, free_space.free_size ); let time = board.time(); let mut cur = match time { Ok(cur) => cur, Err(err) => { log::error!("time error {}", err); NaiveDateTime::from_timestamp_millis(0).unwrap().and_utc() } }; //check if we know the time current > 2020 if cur.year() < 2020 { if board.is_day() { //assume TZ safe times ;) cur = *cur.with_hour(15).get_or_insert(cur); } else { cur = *cur.with_hour(3).get_or_insert(cur); } } println!("cur is {}", cur); if board.is_config_reset() { board.general_fault(true); println!("Reset config is pressed, waiting 5s"); for _i in 0..25 { board.general_fault(true); Delay::new_default().delay_ms(50); board.general_fault(false); Delay::new_default().delay_ms(50); } if board.is_config_reset() { println!("Reset config is still pressed, deleting configs and reboot"); match board.remove_configs() { Ok(case) => { println!("Succeeded in deleting config {}", case); } Err(err) => { println!("Could not remove config files, system borked {}", err); //terminate main app and freeze wait_infinity(WaitType::FlashError, Arc::new(AtomicBool::new(false))); } } } else { board.general_fault(false); } } let mut online_mode = OnlineMode::Offline; let wifi_conf = board.get_wifi(); let wifi: WifiConfig; match wifi_conf { Ok(conf) => { wifi = conf; } Err(err) => { if board.is_wifi_config_file_existant() { match partition_state { embedded_svc::ota::SlotState::Invalid | embedded_svc::ota::SlotState::Unverified => { println!("Config seem to be unparsable after upgrade, reverting"); rollback_and_reboot()?; } _ => {} } } println!("Missing wifi config, entering initial config mode {}", err); board.wifi_ap().unwrap(); //config upload will trigger reboot! drop(board); let reboot_now = Arc::new(AtomicBool::new(false)); let _webserver = httpd_initial(reboot_now.clone()); wait_infinity(WaitType::InitialConfig, reboot_now.clone()); } }; println!("attempting to connect wifi"); match board.wifi(wifi.ssid, wifi.password, 5000) { Ok(_) => { online_mode = OnlineMode::Wifi; } Err(_) => { println!("Offline mode"); board.general_fault(true); } } if online_mode == OnlineMode::Wifi { match board.sntp(1000 * 5) { Ok(new_time) => { cur = new_time; online_mode = OnlineMode::SnTp; } Err(err) => { println!("sntp error: {}", err); board.general_fault(true); } } } println!("Running logic at utc {}", cur); let europe_time = cur.with_timezone(&Berlin); println!("Running logic at europe/berlin {}", europe_time); let config: Config; match board.get_config() { Ok(valid) => { config = valid; } Err(err) => { println!("Missing normal config, entering config mode {}", err); //config upload will trigger reboot! drop(board); let reboot_now = Arc::new(AtomicBool::new(false)); let _webserver = httpd(reboot_now.clone()); wait_infinity(WaitType::NormalConfig, reboot_now.clone()); } } //do mqtt before config check, as mqtt might configure if online_mode == OnlineMode::SnTp { match board.mqtt(&config) { Ok(_) => { println!("Mqtt connection ready"); online_mode = OnlineMode::Online; } Err(err) => { println!("Could not connect mqtt due to {}", err); } } } if online_mode == OnlineMode::Online { let _ = board.mqtt_publish(&config, "/firmware/githash", git_hash.as_bytes()); let _ = board.mqtt_publish(&config, "/state", "online".as_bytes()); publish_battery_state(&mut board, &config); } let tank_state = determine_tank_state(&mut board, &config); let mut water_frozen = false; for _attempt in 0..5 { let water_temperature = board.water_temperature_c(); match water_temperature { Ok(temp) => { if online_mode == OnlineMode::Online { let _ = board.mqtt_publish( &config, "/water/temperature", temp.to_string().as_bytes(), ); } //FIXME mqtt here println!("Water temp is {}", temp); if temp < 4_f32 { water_frozen = true; } break; } Err(err) => { if online_mode == OnlineMode::Online { let _ = board.mqtt_publish(&config, "/water/temperature", "Error".as_bytes()); } println!("Could not get water temp {}", err) } } } let mut plantstate = [PlantState { ..Default::default() }; PLANT_COUNT]; let plant_to_pump = determine_next_plant( online_mode, &mut plantstate, europe_time, &tank_state, water_frozen, &config, &mut board, ); if STAY_ALIVE.load(std::sync::atomic::Ordering::Relaxed) { drop(board); let reboot_now = Arc::new(AtomicBool::new(false)); let _webserver = httpd(reboot_now.clone()); wait_infinity(WaitType::StayAlive, reboot_now.clone()); } match plant_to_pump { Some(plant) => { let mut state = plantstate[plant]; let consecutive_pump_count = board.consecutive_pump_count(plant) + 1; board.store_consecutive_pump_count(plant, consecutive_pump_count); let plant_config = config.plants[plant]; println!( "Trying to pump for {}s with pump {} now", plant_config.pump_time_s, plant ); board.any_pump(true)?; board.store_last_pump_time(plant, cur); board.pump(plant, true)?; board.last_pump_time(plant); state.active = true; //FIXME do periodic pump test here and state update unsafe { vTaskDelay(plant_config.pump_time_s as u32 * CONFIG_FREERTOS_HZ) }; board.pump(plant, false)?; match map_range_moisture( board.measure_moisture_hz(plant, plant_hal::Sensor::PUMP)? as f32 ) { Ok(p) => state.after_p = Some(p), Err(err) => { board.fault(plant, true); state.sensor_error_p = Some(err); } } if state.after_p.is_none() || state.p.is_none() || state.after_p.unwrap() < state.p.unwrap() + 5 { state.pump_error = true; board.fault(plant, true); //mqtt sync pump error value } } None => { println!("Nothing to do"); } } let mut light_state = LightState { ..Default::default() }; light_state.is_day = board.is_day(); light_state.out_of_work_hour = !in_time_range( europe_time, config.night_lamp_hour_start, config.night_lamp_hour_end, ); let state_of_charge = board.state_charge_percent().unwrap_or(0); if state_of_charge < 30 { board.set_low_voltage_in_cycle(); } else if state_of_charge > 50 { board.clear_low_voltage_in_cycle(); } light_state.battery_low = board.low_voltage_in_cycle(); if !light_state.out_of_work_hour { if config.night_lamp_only_when_dark { if !light_state.is_day { if light_state.battery_low { board.light(false).unwrap(); } else { light_state.active = true; board.light(true).unwrap(); } } } else { if light_state.battery_low { board.light(false).unwrap(); } else { light_state.active = true; board.light(true).unwrap(); } } } else { light_state.active = false; board.light(false).unwrap(); } println!("Lightstate is {:?}", light_state); if online_mode == OnlineMode::Online { match serde_json::to_string(&light_state) { Ok(state) => { let _ = board.mqtt_publish(&config, "/light/active", state.as_bytes()); } Err(err) => { println!("Error publishing lightstate {}", err); } }; } //relatch unsafe { gpio_deep_sleep_hold_dis() }; unsafe { gpio_deep_sleep_hold_en() }; //determine next event //is light out of work trigger soon? //is battery low ?? //is deep sleep unsafe { esp_deep_sleep(1000 * 1000 * 20) }; } fn publish_battery_state( board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>, config: &Config, ) { match board.voltage_milli_volt() { Ok(v) => { let _ = board.mqtt_publish( &config, "/battery/voltage_milli_volt", v.to_string().as_bytes(), ); } Err(err) => { let _ = board.mqtt_publish(&config, "/battery/voltage_milli_volt", "-1".as_bytes()); let _ = board.mqtt_publish(&config, "/errorlog", format!("{:?}", err).as_bytes()); } }; match board.average_current_milli_ampere() { Ok(v) => { let _ = board.mqtt_publish( &config, "/battery/average_current_milli_ampere", v.to_string().as_bytes(), ); } Err(err) => { let _ = board.mqtt_publish( &config, "/battery/average_current_milli_ampere", "-1".as_bytes(), ); let _ = board.mqtt_publish(&config, "/errorlog", format!("{:?}", err).as_bytes()); } }; match board.cycle_count() { Ok(v) => { let _ = board.mqtt_publish(&config, "/battery/cycle_count", v.to_string().as_bytes()); } Err(err) => { let _ = board.mqtt_publish(&config, "/battery/cycle_count", "-1".as_bytes()); let _ = board.mqtt_publish(&config, "/errorlog", format!("{:?}", err).as_bytes()); } }; match board.design_milli_ampere_hour() { Ok(v) => { let _ = board.mqtt_publish( &config, "/battery/design_milli_ampere_hour", v.to_string().as_bytes(), ); } Err(err) => { let _ = board.mqtt_publish( &config, "/battery/design_milli_ampere_hour", "-1".as_bytes(), ); let _ = board.mqtt_publish(&config, "/errorlog", format!("{:?}", err).as_bytes()); } }; match board.max_milli_ampere_hour() { Ok(v) => { let _ = board.mqtt_publish( &config, "/battery/max_milli_ampere_hour", v.to_string().as_bytes(), ); } Err(err) => { let _ = board.mqtt_publish(&config, "/battery/max_milli_ampere_hour", "-1".as_bytes()); let _ = board.mqtt_publish(&config, "/errorlog", format!("{:?}", err).as_bytes()); } }; match board.remaining_milli_ampere_hour() { Ok(v) => { let _ = board.mqtt_publish( &config, "/battery/remaining_milli_ampere_hour", v.to_string().as_bytes(), ); } Err(err) => { let _ = board.mqtt_publish( &config, "/battery/remaining_milli_ampere_hour", "-1".as_bytes(), ); let _ = board.mqtt_publish(&config, "/errorlog", format!("{:?}", err).as_bytes()); } }; match board.state_charge_percent() { Ok(v) => { let _ = board.mqtt_publish( &config, "/battery/state_charge_percent", v.to_string().as_bytes(), ); } Err(err) => { let _ = board.mqtt_publish(&config, "/battery/state_charge_percent", "-1".as_bytes()); let _ = board.mqtt_publish(&config, "/errorlog", format!("{:?}", err).as_bytes()); } }; match board.state_health_percent() { Ok(v) => { let _ = board.mqtt_publish( &config, "/battery/state_health_percent", v.to_string().as_bytes(), ); } Err(err) => { let _ = board.mqtt_publish(&config, "/battery/state_health_percent", "-1".as_bytes()); let _ = board.mqtt_publish(&config, "/errorlog", format!("{:?}", err).as_bytes()); } }; } fn determine_tank_state( board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>, config: &Config, ) -> TankState { if config.tank_sensor_enabled { let mut rv: TankState = TankState { ..Default::default() }; let success = board .tank_sensor_percent() .and_then(|raw| { rv.raw = raw; return map_range( ( config.tank_empty_percent as f32, config.tank_full_percent as f32, ), raw as f32, ); }) .and_then(|percent| { rv.left_ml = (percent * config.tank_useable_ml as f32) as u32; println!( "Tank sensor returned mv {} as {}% leaving {} ml useable", rv.raw, percent as u8, rv.left_ml ); if config.tank_warn_percent > percent as u8 { board.general_fault(true); println!( "Low water, current percent is {}, minimum warn level is {}", percent as u8, config.tank_warn_percent ); } if config.tank_empty_percent > percent as u8 { println!( "Empty water, current percent is {}, minimum empty level is {}", percent as u8, config.tank_empty_percent ); rv.enough_water = false; } return Ok(()); }); match success { Err(err) => { println!("Could not determine tank value due to {}", err); board.general_fault(true); rv.sensor_error = true; } Ok(_) => {} } return rv; } return TankState { enough_water: true, left_ml: 1337, sensor_error: false, raw: 0, }; } fn map_range(from_range: (f32, f32), s: f32) -> anyhow::Result { if s < from_range.0 { anyhow::bail!( "Value out of range, min {} but current is {}", from_range.0, s ); } if s > from_range.1 { anyhow::bail!( "Value out of range, max {} but current is {}", from_range.1, s ); } return Ok(TO.0 + (s - from_range.0) * (TO.1 - TO.0) / (from_range.1 - from_range.0)); } fn map_range_moisture(s: f32) -> Result { if s < FROM.0 { return Err(SensorError::OpenCircuit { hz: s, min: FROM.0 }); } if s > FROM.1 { return Err(SensorError::ShortCircuit { hz: s, max: FROM.1 }); } let tmp = TO.0 + (s - FROM.0) * (TO.1 - TO.0) / (FROM.1 - FROM.0); return Ok(tmp as u8); } fn in_time_range(cur: DateTime, start: u8, end: u8) -> bool { let curhour = cur.hour() as u8; //eg 10-14 if start < end { return curhour > start && curhour < end; } else { //eg 20-05 return curhour > start || curhour < end; } } fn option_to_string(value: Option) -> String { match value { Some(v) => v.to_string(), None => "Error".to_owned(), } } fn determine_state_target_moisture_for_plant( board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>, plant: usize, state: &mut PlantState, config: &Config, tank_state: &TankState, water_frozen: bool, cur: DateTime, ) { let plant_config = &config.plants[plant]; match board.measure_moisture_hz(plant, plant_hal::Sensor::A) { Ok(a) => { let mapped = map_range_moisture(a as f32); match mapped { Ok(result) => state.a = Some(result), Err(err) => { state.sensor_error_a = Some(err); } } } Err(_) => { state.sensor_error_a = Some(SensorError::Unknown); } } match board.measure_moisture_hz(plant, plant_hal::Sensor::B) { Ok(b) => { let mapped = map_range_moisture(b as f32); match mapped { Ok(result) => state.b = Some(result), Err(err) => { state.sensor_error_b = Some(err); } } } Err(_) => { state.sensor_error_b = Some(SensorError::Unknown); } } //FIXME how to average analyze whatever? let a_low = state.a.is_some() && state.a.unwrap() < plant_config.target_moisture; let b_low = state.b.is_some() && state.b.unwrap() < plant_config.target_moisture; if a_low || b_low { state.dry = true; if tank_state.sensor_error && !config.tank_allow_pumping_if_sensor_error || !tank_state.enough_water { state.no_water = true; } } let duration = Duration::minutes((plant_config.pump_cooldown_min).into()); let next_pump = board.last_pump_time(plant) + duration; if next_pump > cur { state.cooldown = true; } if !in_time_range( cur, plant_config.pump_hour_start, plant_config.pump_hour_end, ) { state.out_of_work_hour = true; } if water_frozen { state.frozen = true; } if state.dry && !state.no_water && !state.cooldown && !state.out_of_work_hour { if water_frozen { state.frozen = true; } else { state.do_water = true; } } } fn determine_next_plant( online_mode: OnlineMode, plantstate: &mut [PlantState; PLANT_COUNT], cur: DateTime, tank_state: &TankState, water_frozen: bool, config: &Config, board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>, ) -> Option { for plant in 0..PLANT_COUNT { let state = &mut plantstate[plant]; let plant_config = &config.plants[plant]; match plant_config.mode { config::Mode::OFF => {} config::Mode::TargetMoisture => { determine_state_target_moisture_for_plant( board, plant, state, config, tank_state, water_frozen, cur, ); } config::Mode::TimerOnly => { let duration = Duration::minutes((plant_config.pump_cooldown_min).into()); let next_pump = board.last_pump_time(plant) + duration; if next_pump > cur { state.cooldown = true; } else { if water_frozen { state.frozen = true; } else { state.do_water = true; } } } config::Mode::TimerAndDeadzone => { let duration = Duration::minutes((60 * plant_config.pump_cooldown_min).into()); let next_pump = board.last_pump_time(plant) + duration; if next_pump > cur { state.cooldown = true; } if !in_time_range( cur, plant_config.pump_hour_start, plant_config.pump_hour_end, ) { state.out_of_work_hour = true; } if !state.cooldown && !state.out_of_work_hour { if water_frozen { state.frozen = true; } else { state.do_water = true; } } } } if state.sensor_error_a.is_some() || state.sensor_error_b.is_some() || state.sensor_error_p.is_some() { board.fault(plant, true); } if state.do_water { if board.consecutive_pump_count(plant) > config.max_consecutive_pump_count.into() { state.not_effective = true; board.fault(plant, true); } } else { board.store_consecutive_pump_count(plant, 0); } println!("Plant {} state is {:?}", plant, state); } if online_mode == OnlineMode::Online { for plant in 0..PLANT_COUNT { let state = &plantstate[plant]; let _ = board.mqtt_publish( &config, format!("/plant{}/Sensor A", plant).as_str(), option_to_string(state.a).as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Sensor B", plant).as_str(), option_to_string(state.b).as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Sensor P before", plant).as_str(), option_to_string(state.p).as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Sensor P after", plant).as_str(), option_to_string(state.after_p).as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Should water", plant).as_str(), state.do_water.to_string().as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Is frozen", plant).as_str(), state.frozen.to_string().as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Is dry", plant).as_str(), state.dry.to_string().as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Pump Error", plant).as_str(), state.pump_error.to_string().as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Pump Ineffective", plant).as_str(), state.not_effective.to_string().as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Is in Cooldown", plant).as_str(), state.cooldown.to_string().as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/No Water", plant).as_str(), state.no_water.to_string().as_bytes(), ); let _ = board.mqtt_publish( &config, format!("/plant{}/Out of Work Hour", plant).as_str(), state.out_of_work_hour.to_string().as_bytes(), ); } } for plant in 0..PLANT_COUNT { let state = &plantstate[plant]; println!( "Checking for water plant {} with state {}", plant, state.do_water ); if state.do_water { return Some(plant); } } println!("No plant needs water"); return None; } fn wait_infinity(wait_type: WaitType, reboot_now: Arc) -> ! { let delay = match wait_type { WaitType::InitialConfig => 250_u32, WaitType::FlashError => 100_u32, WaitType::NormalConfig => 500_u32, WaitType::StayAlive => 1000_u32, }; let led_count = match wait_type { WaitType::InitialConfig => 8, WaitType::FlashError => 8, WaitType::NormalConfig => 4, WaitType::StayAlive => 2, }; loop { unsafe { //do not trigger watchdog for i in 0..8 { BOARD_ACCESS.lock().unwrap().fault(i, i < led_count); } BOARD_ACCESS.lock().unwrap().general_fault(true); vTaskDelay(delay); BOARD_ACCESS.lock().unwrap().general_fault(false); for i in 0..8 { BOARD_ACCESS.lock().unwrap().fault(i, false); } vTaskDelay(delay); if wait_type == WaitType::StayAlive && !STAY_ALIVE.load(std::sync::atomic::Ordering::Relaxed) { reboot_now.store(true, std::sync::atomic::Ordering::Relaxed); } if reboot_now.load(std::sync::atomic::Ordering::Relaxed) { println!("Rebooting"); esp_restart(); } } } } fn main() { let result = safe_main(); result.unwrap(); } //error codes //error_reading_config_after_upgrade //error_no_config_after_upgrade //error_tank_sensor_fault