added caching, reporting to pushover

Cargo.lock

@@ -954,6 +954,7 @@ dependencies = [
  "bytes",
  "encoding_rs",
  "futures-core",
+ "futures-util",
  "h2",
  "http",
  "http-body",
@@ -965,6 +966,7 @@ dependencies = [
  "js-sys",
  "log",
  "mime",
+ "mime_guess",
  "native-tls",
  "percent-encoding",
  "pin-project-lite",
@@ -1225,7 +1227,6 @@ dependencies = [
  "tokio",
  "tower",
  "tower-http",
- "tower-livereload",
  "tracing",
  "tracing-subscriber",
 ]
@@ -1440,20 +1441,6 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "121c2a6cda46980bb0fcd1647ffaf6cd3fc79a013de288782836f6df9c48780e"
 
-[[package]]
-name = "tower-livereload"
-version = "0.9.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aa6b29b17d4540f2bd9ec304ad39d280c4bdf291d0ea6c4123eeba10939af84"
-dependencies = [
- "bytes",
- "http",
- "http-body",
- "pin-project-lite",
- "tokio",
- "tower",
-]
-
 [[package]]
 name = "tower-service"
 version = "0.3.3"

Cargo.toml

@@ -7,7 +7,7 @@ edition = "2024"
 axum = "0.8.6"
 chrono = "0.4.42"
 dotenv = "0.15.0"
-reqwest = { version = "0.12", features = ["json"] }
+reqwest = { version = "0.12", features = ["json", "multipart"] }
 serde = { version = "1.0.228", features = ["derive"] }
 tokio = { version = "1.47", features = ["full"] }
 tower-http = { version = "0.6", features = ["fs"] }
@@ -15,4 +15,4 @@ tower = "0.5.0"
 tracing = "0.1.41"
 tracing-subscriber = "0.3.20"
 anyhow = "1.0"
-tower-livereload = "0.9.6"
+#tower-livereload = "0.9.6"

src/main.rs

@@ -1,27 +1,51 @@
+use std::sync::{Arc, RwLock};
+
 use axum::{
-    Extension, Json, Router,
+    Json, Router,
+    extract::State,
     response::{ErrorResponse, Html},
     routing::get,
 };
-use chrono::prelude::*;
+use chrono::{DateTime, Days, Timelike, Utc};
 use dotenv::dotenv;
 use serde::{Deserialize, Serialize};
 use tower::ServiceBuilder;
 use tower_http::services::ServeDir;
-use tower_livereload::LiveReloadLayer;
+// use tower_livereload::LiveReloadLayer;
+
+type CachedAppState = Arc<RwLock<AppState>>;
+
+#[derive(Debug, Clone)]
+struct AppState {
+    day_checked: bool,
+    cache_reset: DateTime<Utc>,
+    values: EnergyResponse,
+}
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     dotenv().ok();
+    let app_state: CachedAppState = Arc::new(RwLock::new(AppState {
+        values: EnergyResponse {
+            energy: Energy {
+                timeUnit: "".to_string(),
+                unit: "".to_string(),
+                values: vec![],
+            },
+        },
+        day_checked: false,
+        cache_reset: Utc::now() - Days::new(1),
+    }));
 
     let app = Router::new()
         .route("/api/energy", get(energy))
+        .with_state(app_state)
         .route("/", get(index))
         .nest_service(
             "/static",
             ServiceBuilder::new().service(ServeDir::new("static")),
-        )
-        .layer(LiveReloadLayer::new());
+        );
+    // .layer(LiveReloadLayer::new());
 
     let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await.unwrap();
     println!("server on {}", listener.local_addr().unwrap());
@@ -43,50 +67,117 @@ async fn index() -> Html<String> {
     Html(html)
 }
 
-async fn energy() -> axum::response::Result<Json<EnergyResponse>, ErrorResponse> {
-    let site_id = std::env::var("SITE_ID").unwrap();
-    let api_key = std::env::var("API_KEY").unwrap();
-    let utc_now = Utc::now().date_naive();
+async fn energy(
+    State(state): State<CachedAppState>,
+) -> axum::response::Result<Json<EnergyResponse>, ErrorResponse> {
+    let energy_response = fetch_energy_response(state.clone()).await?;
+    check_energy(state, &energy_response).await?;
 
-    let url = format!(
-        "https://monitoringapi.solaredge.com/site/{}/energy?timeUnit=QUARTER_OF_AN_HOUR&endDate={}&startDate={}&api_key={}",
-        site_id, utc_now, utc_now, api_key,
-    );
-
-    let mut energy_response = reqwest::get(url)
-        .await
-        .map_err(|e| ErrorResponse::from(e.to_string()))?
-        .json::<EnergyResponse>()
-        .await
-        .map_err(|e| ErrorResponse::from(e.to_string()))?;
-
-    let values: Vec<EnergyValue> = energy_response
-        .energy
-        .values
-        .iter()
-        .map(|v| EnergyValue {
-            date: format!("{}+02:00", v.date.replace(' ', "T")).to_string(),
-            value: v.value,
-        })
-        .collect();
-
-    energy_response.energy.values = values;
     Ok(Json(energy_response))
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+async fn check_energy(
+    state: CachedAppState,
+    energy_response: &EnergyResponse,
+) -> axum::response::Result<(), ErrorResponse> {
+    let now = Utc::now();
+    let hour = now.hour();
+    let is_checked_today = state.read().unwrap().day_checked;
+    if hour == 12 && !is_checked_today {
+        let energy_at_1200 = energy_response
+            .energy
+            .values
+            .iter()
+            .find(|v| v.date.ends_with("12:00:00+02:00"))
+            .map(|v| v.value)
+            .flatten();
+        if let Some(energy_at_1200) = energy_at_1200 {
+            if energy_at_1200 == 0.0 {
+                report().await?;
+            }
+        }
+        state.write().unwrap().day_checked = true;
+    }
+    //reset at 00:00
+    if hour == 0 && is_checked_today {
+        state.write().unwrap().day_checked = false;
+    }
+    Ok(())
+}
+async fn report() -> axum::response::Result<(), ErrorResponse> {
+    let user_id = std::env::var("PUSHOVER_USER_ID").unwrap();
+    let api_key = std::env::var("PUSHOVER_API_KEY").unwrap();
+
+    let url = "https://api.pushover.net/1/messages.json";
+    let form = reqwest::multipart::Form::new()
+        .text("token", api_key)
+        .text("user", user_id)
+        .text("message", "No energy measured on the solar panels");
+
+    let client = reqwest::Client::new();
+    let _ = client
+        .post(url)
+        .multipart(form)
+        .send()
+        .await
+        .map_err(|e| ErrorResponse::from(e.to_string()))?;
+    Ok(())
+}
+
+async fn fetch_energy_response(state: CachedAppState) -> axum::response::Result<EnergyResponse> {
+    let reset_ts = state.read().unwrap().cache_reset;
+    let now = Utc::now();
+    if now.signed_duration_since(reset_ts).as_seconds_f32() > 300.0 {
+        state.write().unwrap().cache_reset = now;
+        let site_id = std::env::var("SOLAREDGE_SITE_ID").unwrap();
+        let api_key = std::env::var("SOLAREDGE_API_KEY").unwrap();
+
+        let url = format!(
+            "https://monitoringapi.solaredge.com/site/{}/energy?timeUnit=QUARTER_OF_AN_HOUR&endDate={}&startDate={}&api_key={}",
+            site_id,
+            now.date_naive(),
+            now.date_naive(),
+            api_key,
+        );
+
+        let mut energy_response = reqwest::get(url)
+            .await
+            .map_err(|e| ErrorResponse::from(e.to_string()))?
+            .json::<EnergyResponse>()
+            .await
+            .map_err(|e| ErrorResponse::from(e.to_string()))?;
+
+        let values: Vec<EnergyValue> = energy_response
+            .energy
+            .values
+            .iter()
+            .map(|v| EnergyValue {
+                date: format!("{}+02:00", v.date.replace(' ', "T")).to_string(),
+                value: v.value,
+            })
+            .collect();
+
+        energy_response.energy.values = values;
+        state.write().unwrap().values = energy_response.clone();
+        Ok(energy_response)
+    } else {
+        Ok(state.read().unwrap().values.clone())
+    }
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
 struct EnergyResponse {
     energy: Energy,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 struct Energy {
     timeUnit: String,
     unit: String,
     values: Vec<EnergyValue>,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 struct EnergyValue {
     date: String,
     value: Option<f32>,

static/index.html

@@ -2,6 +2,7 @@
 <html>
     <head>
         <link rel="stylesheet" href="/static/style.css" />
+        <meta http-equiv="refresh" content="300" />
     </head>
     <body>
         <script src="/static/d3.v7.min.js"></script>