start maildir work

Cargo.lock

@@ -32,9 +32,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.38"
+version = "1.0.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afddf7f520a80dbf76e6f50a35bca42a2331ef227a28b3b6dc5c2e2338d114b1"
+checksum = "81cddc5f91628367664cc7c69714ff08deee8a3efc54623011c772544d7b2767"
 
 [[package]]
 name = "archery"
@@ -1481,9 +1481,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "libc"
-version = "0.2.89"
+version = "0.2.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "538c092e5586f4cdd7dd8078c4a79220e3e168880218124dcbce860f0ea938c6"
+checksum = "ba4aede83fc3617411dc6993bc8c70919750c1c257c6ca6a502aed6e0e2394ae"
 
 [[package]]
 name = "libgit2-sys"
@@ -1860,6 +1860,16 @@ dependencies = [
  "webpki-roots",
 ]
 
+[[package]]
+name = "panorama-maildir"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "futures 0.3.13",
+ "tempfile",
+ "tokio 1.3.0",
+]
+
 [[package]]
 name = "panorama-smtp"
 version = "0.1.0"
@@ -2486,9 +2496,9 @@ dependencies = [
 
 [[package]]
 name = "siphasher"
-version = "0.3.3"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa8f3741c7372e75519bd9346068370c9cdaabcc1f9599cbcf2a2719352286b7"
+checksum = "cbce6d4507c7e4a3962091436e56e95290cb71fa302d0d270e32130b75fbff27"
 
 [[package]]
 name = "sized-chunks"
@@ -2939,9 +2949,9 @@ checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
 
 [[package]]
 name = "vec-arena"
-version = "1.0.0"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eafc1b9b2dfc6f5529177b62cf806484db55b32dc7c9658a118e11bbeb33061d"
+checksum = "34b2f665b594b07095e3ac3f718e13c2197143416fae4c5706cffb7b1af8d7f1"
 
 [[package]]
 name = "vec_map"

Cargo.toml

@@ -9,10 +9,14 @@ readme = "README.md"
 license = "GPL-3.0-or-later"
 
 [workspace]
-members = ["imap", "smtp"]
+members = [
+    "imap",
+    "smtp",
+    "maildir",
+]
 
 [dependencies]
-anyhow = "1.0.38"
+anyhow = "1.0.39"
 async-trait = "0.1.48"
 cfg-if = "1.0.0"
 chrono = "0.4.19"

maildir/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "panorama-maildir"
+version = "0.1.0"
+authors = ["Michael Zhang <mail@mzhang.io>"]
+edition = "2018"
+
+[dependencies]
+anyhow = "1.0.39"
+futures = "0.3.13"
+tempfile = "3.2.0"
+tokio = { version = "1.3.0", features = ["full"] }

maildir/src/lib.rs

@@ -0,0 +1,50 @@
+use std::path::{Path, PathBuf};
+
+use tokio::fs::{File, self};
+use anyhow::Result;
+use tempfile::NamedTempFile;
+
+pub struct Maildir {
+    path: PathBuf,
+}
+
+impl Maildir {
+    // TODO: should this double as create (aka create tmp cur new if they don't exist)?
+    pub async fn open(path: impl AsRef<Path>) -> Result<Self> {
+        Ok(Maildir {
+            path: path.as_ref().to_path_buf(),
+        })
+    }
+
+    /// Stores a new message into the `new` directory
+    // TODO: maybe have a streaming option?
+    pub async fn store(&self) -> Result<()> {
+        let unique_name = "hellosu";
+        let tmp_file = self.tmp_dir().join(unique_name);
+        {
+            let mut file = File::create(&tmp_file).await?;
+        }
+
+        let new_file = self.new_dir().join(unique_name);
+        fs::rename(tmp_file, new_file).await?;
+        Ok(())
+    }
+
+    /// Returns the path to the `tmp` subdirectory
+    #[inline]
+    pub fn tmp_dir(&self) -> PathBuf {
+        self.path.join("tmp")
+    }
+
+    /// Returns the path to the `new` subdirectory
+    #[inline]
+    pub fn new_dir(&self) -> PathBuf {
+        self.path.join("new")
+    }
+
+    /// Returns the path to the `cur` subdirectory
+    #[inline]
+    pub fn cur_dir(&self) -> PathBuf {
+        self.path.join("cur")
+    }
+}

src/ui/colon_prompt.rs

@@ -10,11 +10,11 @@ pub struct ColonPrompt {
 }
 
 impl ColonPrompt {
-    pub fn init(term: TermType) -> Self {
-        let s = term.size().unwrap();
-        term.set_cursor(1, s.height - 1);
-        term.show_cursor();
-        ColonPrompt::default()
+    pub fn init(term: TermType) -> Result<Self> {
+        let s = term.size()?;
+        term.set_cursor(1, s.height - 1)?;
+        term.show_cursor()?;
+        Ok(ColonPrompt::default())
     }
 }
 

src/ui/input.rs

@@ -41,7 +41,7 @@ impl HandlesInput for BaseInputHandler {
             KeyCode::Char('j') => self.1.store(1, Ordering::Relaxed),
             KeyCode::Char('k') => self.1.store(-1, Ordering::Relaxed),
             KeyCode::Char(':') => {
-                let colon_prompt = Box::new(ColonPrompt::init(term));
+                let colon_prompt = Box::new(ColonPrompt::init(term)?);
                 return Ok(InputResult::Push(colon_prompt));
             }
             _ => {}

src/ui/mod.rs

@@ -286,16 +286,14 @@ pub async fn run_ui(
                 // handle states in the state stack
                 // although this is written in a for loop, every case except one should break
                 let mut should_pop = false;
-                for input_state in input_states.iter_mut().rev() {
+                if let Some(input_state) = input_states.last_mut() {
                     match input_state.handle_key(&mut term, evt)? {
-                        InputResult::Ok => break,
+                        InputResult::Ok => {},
                         InputResult::Push(state) => {
                             input_states.push(state);
-                            break;
                         }
                         InputResult::Pop => {
                             should_pop = true;
-                            break;
                         }
                     }
                 }