Show errors in TUI instead of nothing

Once the terminal was setup, errors were not shown in case the
application stopped because of an error.

So, show errors explicitely in TUI to be able to debug easily the deck
for example.

1 files changed, 20 insertions, 2 deletions

diff --git a/src/main.rs b/src/main.rs
index bed2ce1..c2373f4 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,6 +7,7 @@ mod util;
 
 use crate::util::event::Events;
 use anyhow::Result;
+use rusqlite::Connection;
 use std::path::PathBuf;
 use structopt::StructOpt;
 
@@ -23,8 +24,25 @@ fn main() -> Result<()> {
     let deck_name = deck::pp_from_path(&deck_path).unwrap_or_else(|| "Deck".to_string());
     let mut term = gui::terminal()?;
     let events = Events::new();
-    gui::synchronize(&conn, &mut term, &events, &deck_path, &deck_name)?;
-    gui::start(&conn, &mut term, &events, &deck_name)
+    match run_tui(conn, &deck_path, &deck_name, &mut term, &events) {
+        Ok(()) => Ok(()),
+        Err(msg) => {
+            // Show errors in TUI, otherwise they are hidden
+            gui::message::show(&mut term, &events, &deck_name, &format!("{}", msg), true)?;
+            Err(msg)
+        }
+    }
+}
+
+fn run_tui(
+    conn: Connection,
+    deck_path: &str,
+    deck_name: &str,
+    term: &mut gui::Term,
+    events: &Events,
+) -> Result<()> {
+    gui::synchronize(&conn, term, &events, &deck_path, &deck_name)?;
+    gui::start(&conn, term, &events, &deck_name)
 }
 
 fn db_path(deck_path: &str) -> String {