From 19a99c6b0e041d1c0cb1ebfd0c13e8c0e11847ef Mon Sep 17 00:00:00 2001
From: Sebastian Kuzminsky <seb@highlab.com>
Date: Mon, 7 Jul 2025 23:45:03 -0600
Subject: [PATCH] WIP

---
 Cargo.toml          |  1 +
 src/bin/ent/main.rs |  1 +
 src/comment.rs      |  7 +++++--
 src/git.rs          | 28 ++++++++++++++++++++++++++++
 src/issue.rs        |  2 +-
 src/issues.rs       |  1 +
 6 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index fccb9c9..af271d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,6 +9,7 @@ log = ["dep:log", "dep:simple_logger"]
 
 [dependencies]
 anyhow = "1.0.95"
+chrono = "0.4.41"
 clap = { version = "4.5.26", features = ["derive"] }
 log = { version = "0.4.27", optional = true }
 rand = "0.9.1"
diff --git a/src/bin/ent/main.rs b/src/bin/ent/main.rs
index 1c9ddaa..9f8b6da 100644
--- a/src/bin/ent/main.rs
+++ b/src/bin/ent/main.rs
@@ -99,6 +99,7 @@ fn handle_command(args: &Args, issues_dir: &std::path::Path) -> anyhow::Result<(
                     for (uuid, comment) in issue.comments.iter() {
                         println!("");
                         println!("comment: {}", uuid);
+                        println!("timestamp: {}", comment.timestamp);
                         println!("{}", comment.description);
                     }
                 }
diff --git a/src/comment.rs b/src/comment.rs
index ab2ced9..fd83b5c 100644
--- a/src/comment.rs
+++ b/src/comment.rs
@@ -3,6 +3,7 @@ use std::io::Write;
 #[derive(Debug, PartialEq)]
 pub struct Comment {
     pub description: String,
+    pub timestamp: chrono::DateTime<chrono::Local>,
 
     /// This is the directory that the comment lives in.  Only used
     /// internally by the entomologist library.
@@ -39,13 +40,15 @@ impl Comment {
                 }
             }
         }
-
         if description == None {
             return Err(CommentError::CommentParseError);
         }
 
+        let timestamp = crate::git::git_log_oldest_timestamp(comment_dir)?;
+
         Ok(Self {
             description: description.unwrap(),
+            timestamp,
             dir: std::path::PathBuf::from(comment_dir),
         })
     }
@@ -96,7 +99,7 @@ mod tests {
         let comment = Comment::new_from_dir(comment_dir).unwrap();
         let expected = Comment {
             description: String::from("This is a comment on issue dd79c8cfb8beeacd0460429944b4ecbe95a31561\n\nIt has multiple lines\n"),
-
+            timestamp: chrono::DateTime::parse_from_rfc3339("2025-07-01T15:26:26").unwrap().with_timezone(&chrono::Local),
             dir: std::path::PathBuf::from(comment_dir),
         };
         assert_eq!(comment, expected);
diff --git a/src/git.rs b/src/git.rs
index caa5e4b..9fa9ffe 100644
--- a/src/git.rs
+++ b/src/git.rs
@@ -4,6 +4,8 @@ use std::io::Write;
 pub enum GitError {
     #[error(transparent)]
     StdIoError(#[from] std::io::Error),
+    #[error(transparent)]
+    ParseIntError(#[from] std::num::ParseIntError),
     #[error("Oops, something went wrong")]
     Oops,
 }
@@ -124,6 +126,32 @@ pub fn git_commit_file(file: &std::path::Path) -> Result<(), GitError> {
     Ok(())
 }
 
+pub fn git_log_oldest_timestamp(
+    path: &std::path::Path,
+) -> Result<chrono::DateTime<chrono::Local>, GitError> {
+    let result = std::process::Command::new("git")
+        .args(["log", "--pretty=format:%at", &path.to_string_lossy()])
+        .output()?;
+    println!("git logging path is {:?}", path);
+    if !result.status.success() {
+        println!("stdout: {}", std::str::from_utf8(&result.stdout).unwrap());
+        println!("stderr: {}", std::str::from_utf8(&result.stderr).unwrap());
+        return Err(GitError::Oops);
+    }
+    let timestamp_str = std::str::from_utf8(&result.stdout).unwrap();
+    println!(
+        "timestamp of '{}': {}",
+        path.file_name().unwrap().to_string_lossy(),
+        timestamp_str
+    );
+    let timestamp_i64 = timestamp_str.parse::<i64>()?;
+    let timestamp: chrono::DateTime<chrono::Local> =
+        chrono::DateTime::from_timestamp(timestamp_i64, 0)
+            .unwrap()
+            .with_timezone(&chrono::Local);
+    Ok(timestamp)
+}
+
 pub fn create_orphan_branch(branch: &str) -> Result<(), GitError> {
     {
         let tmp_worktree = tempfile::tempdir().unwrap();
diff --git a/src/issue.rs b/src/issue.rs
index c762c82..f8adcde 100644
--- a/src/issue.rs
+++ b/src/issue.rs
@@ -75,7 +75,6 @@ impl fmt::Display for State {
             State::InProgress => "inprogress",
             State::Done => "done",
             State::WontDo => "wontdo",
-            
         };
         write!(f, "{fmt_str}")
     }
@@ -155,6 +154,7 @@ impl Issue {
 
         Ok(crate::comment::Comment {
             description: String::from(""), // FIXME
+            timestamp: chrono::Local::now(),
             dir,
         })
     }
diff --git a/src/issues.rs b/src/issues.rs
index 28df2e9..29162c6 100644
--- a/src/issues.rs
+++ b/src/issues.rs
@@ -154,6 +154,7 @@ mod tests {
             String::from(&comment_uuid),
             crate::comment::Comment {
                 description: String::from("This is a comment on issue dd79c8cfb8beeacd0460429944b4ecbe95a31561\n\nIt has multiple lines\n"),
+                timestamp: chrono::DateTime::parse_from_rfc3339("2025-07-01T15:26:26").unwrap().with_timezone(&chrono::Local),
                 dir: std::path::PathBuf::from(comment_dir),
             }
         );