Add a load of new stats to trace stats CLI

crates/chaff-cli/src/subcommands/trace_stats.rs

@@ -2,7 +2,7 @@
 
 use std::path::PathBuf;
 
-use chaff_capture::trace::Trace;
+use chaff_capture::trace::{Direction, Trace};
 
 use crate::errors::CliError;
 
@@ -11,8 +11,64 @@ use crate::errors::CliError;
 /// # Errors
 ///
 /// - If deserialising the trace fails [`Trace::deserialise`].
+#[expect(clippy::cast_precision_loss)]
+#[expect(clippy::similar_names)]
 pub fn run(input: &PathBuf) -> Result<(), CliError> {
     let trace = Trace::deserialise(&input)?;
-    println!("Packets: {}", trace.len());
+    let deltas = trace.timing_deltas();
+    let total = trace.len();
+    let sent = trace
+        .directions()
+        .iter()
+        .filter(|direction| **direction == Direction::Send)
+        .count();
+    let avg_delta = f64::from(deltas.iter().sum::<u32>()) / total as f64;
+    let avg_size = f64::from(trace.sizes().iter().sum::<u32>()) / total as f64;
+    let largest_burst_0mus = deltas
+        .split(|&delta| delta != 0)
+        .map(<[u32]>::len)
+        .max()
+        .unwrap_or(0);
+    let largest_burst_100mus = deltas
+        .split(|&delta| delta > 100)
+        .map(<[u32]>::len)
+        .max()
+        .unwrap_or(0);
+    let largest_burst_1ms = deltas
+        .split(|&delta| delta > 1000)
+        .map(<[u32]>::len)
+        .max()
+        .unwrap_or(0);
+    let largest_burst_10ms = deltas
+        .split(|&delta| delta > 10000)
+        .map(<[u32]>::len)
+        .max()
+        .unwrap_or(0);
+    let largest_burst_100ms = deltas
+        .split(|&delta| delta > 100_000)
+        .map(<[u32]>::len)
+        .max()
+        .unwrap_or(0);
+    #[expect(clippy::cast_sign_loss)]
+    #[expect(clippy::cast_possible_truncation)]
+    let largest_burst_avg = deltas
+        .split(|&delta| delta > avg_delta as u32)
+        .map(<[u32]>::len)
+        .max()
+        .unwrap_or(0);
+    let largest_delta = deltas.iter().max().unwrap_or(&0);
+
+    println!("Packets: {total}");
+    println!("Sent: {sent}");
+    println!("Received: {}", total - sent);
+    println!("Average packet size: {avg_size:.2} bytes");
+    println!("Average time delta: {avg_delta:.2}μs");
+    println!("Largest time delta: {largest_delta}μs");
+    println!("Largest burst (0μs): {largest_burst_0mus} packets");
+    println!("Largest burst (100μs): {largest_burst_100mus} packets");
+    println!("Largest burst (1ms): {largest_burst_1ms} packets");
+    println!("Largest burst (10ms): {largest_burst_10ms} packets");
+    println!("Largest burst (100ms): {largest_burst_100ms} packets");
+    println!("Largest burst (average delta): {largest_burst_avg} packets");
     Ok(())
 }