From 09373cda56ecc1b00478a28a55a1cb7e8a76d341 Mon Sep 17 00:00:00 2001
From: Sebastian Kuzminsky <seb@highlab.com>
Date: Sun, 6 Jul 2025 00:12:22 -0600
Subject: [PATCH] add `ent new`

---
 src/bin/ent/main.rs | 21 ++++++++++--------
 src/issue.rs        | 52 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+), 9 deletions(-)

diff --git a/src/bin/ent/main.rs b/src/bin/ent/main.rs
index 65e36dc..e0dca3c 100644
--- a/src/bin/ent/main.rs
+++ b/src/bin/ent/main.rs
@@ -22,10 +22,7 @@ enum Commands {
     List,
 
     /// Create a new issue.
-    New {
-        title: Option<String>,
-        description: Option<String>,
-    },
+    New { description: Option<String> },
 }
 
 fn handle_command(args: &Args, issues_dir: &std::path::Path) -> anyhow::Result<()> {
@@ -37,11 +34,17 @@ fn handle_command(args: &Args, issues_dir: &std::path::Path) -> anyhow::Result<(
                 println!("{} {} ({:?})", uuid, issue.title(), issue.state);
             }
         }
-        Commands::New { title, description } => {
-            println!(
-                "should make a new issue, title={:?}, description={:?}",
-                title, description
-            );
+        Commands::New {
+            description: Some(description),
+        } => {
+            let mut issue = entomologist::issue::Issue::new(issues_dir)?;
+            issue.set_description(description)?;
+            println!("created new issue '{}'", issue.title());
+        }
+        Commands::New { description: None } => {
+            let mut issue = entomologist::issue::Issue::new(issues_dir)?;
+            issue.edit_description()?;
+            println!("created new issue '{}'", issue.title());
         }
     }
 
diff --git a/src/issue.rs b/src/issue.rs
index 753454b..b91d3c6 100644
--- a/src/issue.rs
+++ b/src/issue.rs
@@ -1,3 +1,4 @@
+use std::io::Write;
 use std::str::FromStr;
 
 #[derive(Debug, PartialEq, serde::Deserialize)]
@@ -30,6 +31,10 @@ pub enum IssueError {
     StdIoError(#[from] std::io::Error),
     #[error("Failed to parse issue")]
     IssueParseError,
+    #[error("Failed to run git")]
+    GitError(#[from] crate::git::GitError),
+    #[error("Failed to run editor")]
+    EditorError,
 }
 
 impl FromStr for State {
@@ -95,6 +100,53 @@ impl Issue {
         })
     }
 
+    pub fn new(dir: &std::path::Path) -> Result<Self, IssueError> {
+        let mut issue_dir = std::path::PathBuf::from(dir);
+        let rnd: u128 = rand::random();
+        issue_dir.push(&format!("{:0x}", rnd));
+        std::fs::create_dir(&issue_dir)?;
+        Ok(Self {
+            description: String::from(""), // FIXME: kind of bogus to use the empty string as None
+            state: State::New,
+            dependencies: None,
+            dir: issue_dir,
+        })
+    }
+
+    pub fn set_description(&mut self, description: &str) -> Result<(), IssueError> {
+        self.description = String::from(description);
+        let mut description_filename = std::path::PathBuf::from(&self.dir);
+        description_filename.push("description");
+        let mut description_file = std::fs::File::create(&description_filename)?;
+        write!(description_file, "{}", description)?;
+        crate::git::git_commit_file(&description_filename)?;
+        Ok(())
+    }
+
+    pub fn read_description(&mut self) -> Result<(), IssueError> {
+        let mut description_filename = std::path::PathBuf::from(&self.dir);
+        description_filename.push("description");
+        self.description = std::fs::read_to_string(description_filename)?;
+        Ok(())
+    }
+
+    pub fn edit_description(&mut self) -> Result<(), IssueError> {
+        let mut description_filename = std::path::PathBuf::from(&self.dir);
+        description_filename.push("description");
+        let result = std::process::Command::new("vi")
+            .arg(&description_filename.as_mut_os_str())
+            .spawn()?
+            .wait_with_output()?;
+        if !result.status.success() {
+            println!("stdout: {}", std::str::from_utf8(&result.stdout).unwrap());
+            println!("stderr: {}", std::str::from_utf8(&result.stderr).unwrap());
+            return Err(IssueError::EditorError);
+        }
+        crate::git::git_commit_file(&description_filename)?;
+        self.read_description()?;
+        Ok(())
+    }
+
     pub fn title<'a>(&'a self) -> &'a str {
         match self.description.find("\n") {
             Some(index) => &self.description.as_str()[..index],