initial implementation

.gitignore

@@ -1 +1,2 @@
 /target
+.env

Cargo.toml

@@ -5,6 +5,9 @@ authors = ["Robin Appelman <robin@icewind.nl>"]
 edition = "2018"
 
 [dependencies]
+dotenv = "0.15.0"
 main_error = "0.1.0"
+tokio = { version = "0.2", features = ["macros"] }
+warp = "0.2"
 mitemp = { version = "0.1.0", git = "https://github.com/icewind1991/mitemp-rs" }
 

src/main.rs

@@ -1,3 +1,41 @@
-fn main() {
-    println!("Hello, world!");
+use main_error::MainError;
+use mitemp::{adapter_by_mac, BDAddr, Sensor};
+use std::collections::HashMap;
+use std::str::FromStr;
+use warp::Filter;
+
+#[tokio::main]
+async fn main() -> Result<(), MainError> {
+    let mut env: HashMap<String, String> = dotenv::vars().collect();
+    let adapter = BDAddr::from_str(&env.remove("ADAPTER").ok_or("No ADDR set")?)
+        .map_err(|_| "Invalid adapter address")?;
+    let device = BDAddr::from_str(&env.remove("DEVICE").ok_or("No KEYFILE set")?)
+        .map_err(|_| "Invalid device address")?;
+    let port = env
+        .get("PORT")
+        .and_then(|s| u16::from_str(s).ok())
+        .unwrap_or(80);
+
+    let adapter = adapter_by_mac(adapter).map_err(|_| "Adapter not found")?;
+
+    let sensor = Sensor::new(adapter, device).start();
+
+    let metrics = warp::path!("metrics").map(move || {
+        let data = sensor.get_data();
+        if data.battery > 0 {
+            format!(
+                "sensor_temperature {}\nsensor_humidity {}\nsensor_battery {}\n",
+                data.temperature, data.humidity, data.battery
+            )
+        } else {
+            format!(
+                "sensor_temperature {}\nsensor_humidity {}\n",
+                data.temperature, data.humidity
+            )
+        }
+    });
+
+    warp::serve(metrics).run(([0, 0, 0, 0], port)).await;
+
+    Ok(())
 }