SolarEnergy/custom_consumption/src/main.rs

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Rust
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use custom_consumption::app_config::AppConfig;
use custom_consumption::utils::time_millis;
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fn main() {
env_logger::init();
let options = eframe::NativeOptions {
viewport: egui::ViewportBuilder::default().with_inner_size([220.0, 60.0]),
..Default::default()
};
eframe::run_native(
"Custom consumption",
options,
Box::new(|_cc| Box::<MyApp>::default()),
)
.unwrap()
}
struct MyApp {
consumption: i64,
last_saved_consumption: i64,
last_save_time: u128,
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}
impl Default for MyApp {
fn default() -> Self {
let mut prev_consumption = 42;
if AppConfig::get().file_path().is_file() {
prev_consumption = std::fs::read_to_string(AppConfig::get().file_path())
.unwrap_or("43".to_string())
.parse()
.unwrap_or(44)
}
Self {
consumption: prev_consumption,
last_saved_consumption: prev_consumption,
last_save_time: time_millis(),
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}
}
}
impl eframe::App for MyApp {
fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
if self.consumption != self.last_saved_consumption
&& self.last_save_time + AppConfig::get().min_save_interval < time_millis()
{
log::info!("Persist {}", self.consumption);
self.last_saved_consumption = self.consumption;
self.last_save_time = time_millis();
std::fs::write(AppConfig::get().file_path(), self.consumption.to_string())
.expect("Failed to save value!");
}
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egui::CentralPanel::default().show(ctx, |ui| {
ui.heading("Custom consumption");
ui.add(
egui::Slider::new(
&mut self.consumption,
AppConfig::get().min..=AppConfig::get().max,
)
.text("W"),
);
});
}
}