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Code Issues Releases Activity

fix: multiple batteries support in the battery module (#669)

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Closes #656
This commit is contained in:
Luca Rinaldi 2019-12-03 17:48:50 +01:00 committed by Matan Kushner
parent edc62f4518
commit 1558b22bb0
1 changed files with 67 additions and 18 deletions
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71
src/modules/battery.rs
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@ -75,27 +75,76 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
fn get_battery_status() -> Option<BatteryStatus> {
let battery_manager = battery::Manager::new().ok()?;
match battery_manager.batteries().ok()?.next() {
Some(Ok(battery)) => {
let batteries = battery_manager.batteries().ok()?;
let battery_contructor = batteries
.filter_map(|battery| match battery {
Ok(battery) => {
log::debug!("Battery found: {:?}", battery);
let battery_status = BatteryStatus {
percentage: battery.state_of_charge().value * 100.0,
Some(BatteryInfo {
energy: battery.energy().value,
energy_full: battery.energy_full().value,
state: battery.state(),
};
Some(battery_status)
})
}
Some(Err(e)) => {
Err(e) => {
log::debug!("Unable to access battery information:\n{}", &e);
None
}
None => {
log::debug!("No batteries found");
})
.fold(
BatteryInfo {
energy: 0.0,
energy_full: 0.0,
state: battery::State::Unknown,
},
|mut acc, x| {
acc.energy += x.energy;
acc.energy_full += x.energy_full;
acc.state = merge_battery_states(acc.state, x.state);
acc
},
);
if battery_contructor.energy_full != 0.0 {
let battery = BatteryStatus {
percentage: battery_contructor.energy / battery_contructor.energy_full * 100.0,
state: battery_contructor.state,
};
log::debug!("Battery status: {:?}", battery);
Some(battery)
} else {
None
}
}
}
/// the merge returns Charging if at least one is charging
/// Discharging if at least one is Discharging
/// Full if both are Full or one is Full and the other Unknow
/// Empty if both are Empty or one is Empty and the other Unknow
/// Unknown otherwise
fn merge_battery_states(state1: battery::State, state2: battery::State) -> battery::State {
use battery::State::{Charging, Discharging, Unknown};
if state1 == Charging || state2 == Charging {
Charging
} else if state1 == Discharging || state2 == Discharging {
Discharging
} else if state1 == state2 {
state1
} else if state1 == Unknown {
state2
} else if state2 == Unknown {
state1
} else {
Unknown
}
}
struct BatteryInfo {
energy: f32,
energy_full: f32,
state: battery::State,
}
#[derive(Debug)]
struct BatteryStatus {
percentage: f32,
state: battery::State,