From 09ec573753eef123c52c4c6106e63be707675b76 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gustav=20S=C3=B6rn=C3=A4s?= <gustav@sornas.net>
Date: Sun, 25 Apr 2021 18:03:25 +0200
Subject: termion, show inbox

---
 Cargo.toml  |  4 ++--
 src/main.rs | 49 ++++++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 48 insertions(+), 5 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 007c8c7..adcfe8b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,8 +7,8 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-crossterm = "0.19"  # terminal control (cursor, style)
-termimad = "0.10"   # markdown renderer
+termion = "1"  # terminal control (cursor, style)
+# termimad = "0.10"   # markdown renderer
 
 notmuch = { path = "notmuch" }
 
diff --git a/src/main.rs b/src/main.rs
index 1b30c67..ea7830c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,9 +1,52 @@
+use std::io::{Stdout, Write, stdin, stdout};
+use termion::color;
+use termion::event::Key;
+use termion::input::TermRead;
+use termion::raw::{IntoRawMode, RawTerminal};
+
 fn main() {
+    let stdin = stdin();
+    let mut stdout = stdout().into_raw_mode().unwrap();
+
+    // open database
     let db = notmuch::Database::open(&"/home/gustav/.mail", notmuch::DatabaseMode::ReadOnly).unwrap();
-    let query = db.create_query("tag:inbox and tag:unread").unwrap();
+
+    // get threads
+    let query = db.create_query("tag:inbox").unwrap();
     let threads = query.search_threads().unwrap();
+    let threads = threads
+        .map(|t| format!("thread {:?}, {:?}",
+                         t.subject(),
+                         t.authors()))
+        .collect();
+
+    let mut i: isize = 0;
+    show_threads(&mut stdout, &threads, i as usize);
+
+    for c in stdin.keys() {
+        match c.unwrap() {
+            Key::Char('j') => i += 1,
+            Key::Char('k') => i -= 1,
+            Key::Char('q') => break,
+            _ => ()
+        }
+        i = i.rem_euclid(threads.len() as isize);
+        show_threads(&mut stdout, &threads, i as usize);
+    }
+}
+
+fn show_threads(stdout: &mut RawTerminal<Stdout>, threads: &Vec<String>, highlight: usize) {
+    write!(stdout, "{}", termion::clear::All).unwrap();
 
-    for thread in threads {
-        println!("thread {:?}, {:?}", thread.subject(), thread.authors());
+    for (i, thread) in threads.iter().enumerate() {
+        write!(stdout, "{}", termion::cursor::Goto(1, (i + 1) as u16)).unwrap();
+        let highlight = highlight == i;
+        if highlight {
+            write!(stdout, "{}", color::Fg(color::Red)).unwrap();
+        }
+        writeln!(stdout, "{}", thread).unwrap();
+        if highlight {
+            write!(stdout, "{}", color::Fg(color::Reset)).unwrap();
+        }
     }
 }
-- 
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