feat: add config file

daemon/main.rs

@@ -2,9 +2,29 @@ mod ipc;
 mod manager;
 mod socket;
 
-use anyhow::{Context, Result};
+use std::io::Read;
+
+use anyhow::{Context, Result, anyhow};
+use microxdg::Xdg;
+use niri_tag::Config;
 
 fn main() -> Result<()> {
+    // try to read a config
+    let xdg = Xdg::new()?;
+    let mut config_dir = xdg.config()?;
+    config_dir.push("niri-tag");
+    config_dir.push("config.toml");
+
+    let config = std::fs::File::open(config_dir)
+        .map_err(|e| anyhow!(e))
+        .and_then(|mut f| {
+            let mut buf = String::new();
+            f.read_to_string(&mut buf).map_err(|e| anyhow!(e))?;
+            Ok(buf)
+        })
+        .and_then(|buf| toml::from_str::<Config>(&buf).map_err(|e| anyhow!(e)))
+        .inspect_err(|e| tracing::error!("Using default config due to: {}", e))
+        .unwrap_or_default();
     // let systemd know we're ready
     let _ = libsystemd::daemon::notify(false, &[libsystemd::daemon::NotifyState::Ready])?;
     // debug stuff
@@ -25,7 +45,7 @@ fn main() -> Result<()> {
     smol::spawn(ipc::event_provider(event_rx, fullstate_tx)).detach();
     // begin managing niri tags
     smol::block_on(async {
-        let niri_tag = manager::NiriTag::new(event_tx)
+        let niri_tag = manager::NiriTag::new(config, event_tx)
             .await
             .context("Initialising niri tag manager")
             .unwrap();