Add sinks command

src/pulse.rs

@@ -0,0 +1,62 @@
+use serde::{Deserialize, Serialize};
+
+use crate::{
+    output::{self, SinkList},
+    util::CommandExt,
+};
+
+#[derive(Serialize, Deserialize)]
+pub struct Sink {
+    pub state: String,
+    pub name: String,
+    pub description: String,
+    pub mute: bool,
+}
+
+pub fn get_sinks() -> eyre::Result<output::SinkList> {
+    let default_sink = pactl_get_default_sink_name()?;
+    let sinks = pactl_get_sinks()?;
+
+    let mut output = SinkList::default();
+
+    for sink in sinks {
+        let default = dbg!(&sink.name) == dbg!(&default_sink);
+
+        let sink = output::Sink {
+            name: sink.name,
+            pretty_name: sink.description,
+            muted: sink.mute,
+            default,
+            volume: 0, // TODO
+        };
+
+        if default {
+            output.default = Some(sink.clone());
+        }
+
+        output.all.push(sink);
+    }
+
+    output.all.sort_by_key(|s| s.pretty_name.clone());
+
+    Ok(output)
+}
+
+fn pactl_get_sinks() -> eyre::Result<Vec<Sink>> {
+    std::process::Command::new("pactl")
+        .args(["--format", "json"])
+        .args(["list", "sinks"])
+        .just_exec_json()
+}
+
+fn pactl_get_default_sink_name() -> eyre::Result<String> {
+    let mut default_sink = std::process::Command::new("pactl")
+        .arg("get-default-sink")
+        .just_exec()?;
+
+    while default_sink.ends_with(char::is_whitespace) {
+        default_sink.pop();
+    }
+
+    Ok(default_sink)
+}