Add flexible play command with position flags

- Add -i/--now, -n/--next, -l/--last flags to play command:
  - 'play MUSIC' (default) adds to end of queue and plays
  - 'play -i MUSIC' inserts after current and skips to it
  - 'play -n MUSIC' inserts after current, doesn't skip
  - 'play -l MUSIC' adds to end of queue (default behavior)

- Add insert_after_current and track_at methods to Queue in daemon
- Update play command handler to handle position arguments
- Fix queue display to correctly show playing track (compare track_idx
  instead of display_idx with current_position)

1 files changed, 20 insertions, 2 deletions

diff --git a/src/cli.rs b/src/cli.rs
index 13ef67c..1d83262 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -21,6 +21,15 @@ pub enum Commands {
     Restart,
     /// Play a track, album, or artist
     Play {
+        /// Play immediately (add after current and skip to it)
+        #[arg(short = 'i', long = "now", group = "position")]
+        now: bool,
+        /// Add to queue after current track (don't skip)
+        #[arg(short = 'n', long = "next", group = "position")]
+        next: bool,
+        /// Add to end of queue (default)
+        #[arg(short = 'l', long = "last", group = "position")]
+        last: bool,
         #[arg(value_name = "QUERY")]
         query: Option<String>,
     },
@@ -102,9 +111,18 @@ impl Cli {
             Commands::Restart => {
                 crate::daemon::restart_daemon()?;
             }
-            Commands::Play { query } => {
+            Commands::Play {
+                now, next, query, ..
+            } => {
                 if let Some(q) = query {
-                    crate::daemon::send_command(format!("play {}", q))?;
+                    let pos = if *now {
+                        "now"
+                    } else if *next {
+                        "next"
+                    } else {
+                        "last"
+                    };
+                    crate::daemon::send_command(format!("play {} {}", pos, q))?;
                 } else {
                     crate::daemon::send_command("play".to_string())?;
                 }