more bench and report impls

Cargo.toml

@@ -24,6 +24,7 @@ serde = ["dep:serde"]
 
 [dependencies]
 anyhow = "1.0.81"
+chrono = { version = "0.4.37" }
 clap = { version = "4.5.3", features = ["derive"], optional = true }
 colored = { version = "2.1.0", optional = false }
 libpt = "0.4.2"
@@ -31,6 +32,7 @@ rand = "0.8.5"
 regex = "1.10.3"
 serde = { version = "1.0.197", optional = true, features = ["serde_derive"] }
 serde_json = { version = "1.0.114", optional = true }
+# serde_with = "3.7.0"
 thiserror = "1.0.58"
 
 [[bin]]

src/bench/builtin.rs

@@ -11,8 +11,12 @@ pub struct BuiltinBenchmark<'wl, WL: WordList, SL: Solver<'wl, WL>> {
     builder: GameBuilder<'wl, WL>,
 }
 
-impl<'wl, WL: WordList, SL: Solver<'wl, WL>> Benchmark<'wl, WL, SL>
-    for BuiltinBenchmark<'wl, WL, SL>
+impl<'wl, WL, SL> Benchmark<'wl, WL, SL> for BuiltinBenchmark<'wl, WL, SL>
+where
+    WL: WordList,
+    WL: 'wl,
+    SL: Solver<'wl, WL>,
+    SL: 'wl,
 {
     fn build(wordlist: &'wl WL, solver: SL) -> crate::error::WResult<Self> {
         let builder: GameBuilder<_> = Game::builder(wordlist);

src/bench/mod.rs

@@ -19,6 +19,7 @@ where
     WL: WordList,
     WL: 'wl,
     SL: Solver<'wl, WL>,
+    SL: 'wl,
 {
     fn build(wordlist: &'wl WL, solver: SL) -> WResult<Self>;
     fn builder(&'wl self) -> &'wl GameBuilder<'wl, WL>;
@@ -27,16 +28,12 @@ where
     }
     fn solver(&'wl self) -> &'wl SL;
     fn play(&'wl self) -> WResult<GuessResponse> {
-        // FIXME: wth why does the lifetime break here?
-        let mut game: Game<'wl, WL> = self.make_game()?;
-
-        todo!()
+        self.solver().play(&mut self.make_game()?)
     }
     fn bench(&'wl self, n: usize) -> WResult<Report> {
         // PERF: it would be better to make this multithreaded
         let part = n / 20;
         let mut report = Report::new();
-        let start = std::time::Instant::now();
 
         for i in 0..n {
             // TODO: limit execution time for the following, perhaps async
@@ -46,6 +43,8 @@ where
             }
         }
 
+        report.finalize();
+
         Ok(report)
     }
 }

src/bench/report.rs

@@ -1,3 +1,4 @@
+use chrono::{self, NaiveDateTime, NaiveTime, TimeDelta};
 use std::fmt::Display;
 
 #[cfg(feature = "serde")]
@@ -6,14 +7,24 @@ use serde::{Deserialize, Serialize};
 use crate::game::response::GuessResponse;
 
 #[derive(Debug, Clone, PartialEq)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Report {
     data: Vec<GuessResponse>,
+    start: NaiveDateTime,
+    end: Option<NaiveDateTime>,
+    benchtime: Option<TimeDelta>,
+    /// is the benchmark finished?
+    finished: bool,
 }
 
 impl Report {
     pub fn new() -> Self {
-        Self { data: Vec::new() }
+        Self {
+            data: Vec::new(),
+            start: chrono::Local::now().naive_local(),
+            benchtime: None,
+            end: None,
+            finished: false,
+        }
     }
     pub fn add(&mut self, data: GuessResponse) {
         self.data.push(data)
@@ -30,6 +41,23 @@ impl Report {
     pub fn avg_score(&self) -> usize {
         todo!()
     }
+
+    /// finalize the record
+    ///
+    /// Sets the [benchtime](Report::benchtime) and [over](Report::over). In future versions, this
+    /// method might be used to precompute statistical information from the data.
+    pub(crate) fn finalize(&mut self) {
+        self.end = Some(chrono::Local::now().naive_local());
+        self.benchtime = Some(self.end.unwrap() - self.start);
+        self.finished = true;
+    }
+
+    /// is the report finished?
+    ///
+    /// Will be true after the [benchmark][super::Benchmark] is done.
+    pub fn finished(&self) -> bool {
+        self.finished
+    }
 }
 
 impl Display for Report {