Add last_failure to worker state

The `WorkerSnapshot` now includes `last_failure`, which tracks the time
of the last recorded error. This allows the UI to display a more
accurate status, especially when a failure occurs after a recent
success.

The `pick_footer_status` function has been updated to prioritize
`last_failure`. If a failure occurred more recently than the last
success, the footer will show `Offline`, regardless of the success age.
This addresses scenarios where the server might have temporarily failed,
and the UI should reflect that immediately.

The `run_loop` function now updates `last_failure` upon transient or
terminal upload errors and poll failures. This ensures that the new
state information is correctly propagated.
This commit is contained in:
2026-04-18 13:45:21 +02:00
parent 305d739f56
commit 79e91246c6
4 changed files with 144 additions and 47 deletions
+4 -2
View File
@@ -524,7 +524,8 @@ impl DoctateApp {
return;
};
let snap = worker_rx.borrow().clone();
let last_age = snap.last_success.map(|i| i.elapsed());
let last_success_age = snap.last_success.map(|i| i.elapsed());
let last_failure_age = snap.last_failure.map(|i| i.elapsed());
let threshold = self
.config
.as_ref()
@@ -535,7 +536,8 @@ impl DoctateApp {
self.finalizing.is_some(),
snap.state,
snap.queue_len,
last_age,
last_success_age,
last_failure_age,
threshold,
);
+113 -38
View File
@@ -61,28 +61,45 @@ pub enum FooterStatus {
/// Decide which footer status to show. Pure function — no side effects,
/// fully table-testable. Inputs chosen to match what `DoctateApp` can
/// observe cheaply per egui frame.
///
/// Decision rules for the `Idle` branch:
/// - A failure younger than the last success (or a failure with no
/// prior success at all) wins → `Offline`.
/// - Otherwise fall back to success-age vs. threshold (classic staleness).
///
/// `last_*_age` arguments are `Option<Duration>` = "seconds since that
/// event, or `None` if it never happened". Smaller Duration = more recent.
pub fn pick_footer_status(
finalizing: bool,
worker_state: WorkerState,
queue_len: usize,
last_success_age: Option<Duration>,
last_failure_age: Option<Duration>,
offline_threshold: Duration,
) -> FooterStatus {
if finalizing {
return FooterStatus::Finalizing;
}
if queue_len > 0 || worker_state == WorkerState::Uploading {
return FooterStatus::Uploading {
match worker_state {
WorkerState::Uploading => FooterStatus::Uploading {
count: queue_len.max(1),
};
}
if worker_state == WorkerState::Polling {
return FooterStatus::Synchronizing;
}
match last_success_age {
None => FooterStatus::NeverConnected,
Some(age) if age > offline_threshold => FooterStatus::Offline,
Some(_) => FooterStatus::Online,
},
WorkerState::Polling => FooterStatus::Synchronizing,
WorkerState::Idle => {
let failure_more_recent = match (last_success_age, last_failure_age) {
(Some(s), Some(f)) => f < s, // smaller age = younger
(None, Some(_)) => true, // only a failure on record
_ => false,
};
if failure_more_recent {
return FooterStatus::Offline;
}
match last_success_age {
None => FooterStatus::NeverConnected,
Some(age) if age > offline_threshold => FooterStatus::Offline,
Some(_) => FooterStatus::Online,
}
}
}
}
@@ -92,6 +109,16 @@ mod tests {
const THRESHOLD: Duration = Duration::from_secs(30);
/// Convenience: most tests don't care about the failure field.
fn status(
finalizing: bool,
worker_state: WorkerState,
queue_len: usize,
last_success_age: Option<Duration>,
) -> FooterStatus {
pick_footer_status(finalizing, worker_state, queue_len, last_success_age, None, THRESHOLD)
}
#[test]
fn finalizing_wins_over_everything() {
let s = pick_footer_status(
@@ -99,6 +126,7 @@ mod tests {
WorkerState::Uploading,
5,
Some(Duration::from_millis(1)),
Some(Duration::from_millis(1)),
THRESHOLD,
);
assert_eq!(s, FooterStatus::Finalizing);
@@ -106,84 +134,131 @@ mod tests {
#[test]
fn uploading_when_queue_non_empty() {
let s = pick_footer_status(
let s = status(
false,
WorkerState::Uploading,
3,
Some(Duration::from_millis(1)),
THRESHOLD,
);
assert_eq!(s, FooterStatus::Uploading { count: 3 });
}
#[test]
fn uploading_reports_at_least_one_even_if_scan_raced() {
// Edge case: WorkerState says Uploading, but scan returned 0
// (just finished a file and the next scan hasn't happened yet).
// We still want to show "Uploading" to avoid a flicker back to
// Online right before the next file starts.
let s = pick_footer_status(
let s = status(
false,
WorkerState::Uploading,
0,
Some(Duration::from_millis(1)),
THRESHOLD,
);
assert_eq!(s, FooterStatus::Uploading { count: 1 });
}
#[test]
fn synchronizing_when_polling_and_no_queue() {
let s = pick_footer_status(
false,
WorkerState::Polling,
0,
Some(Duration::from_millis(1)),
THRESHOLD,
);
let s = status(false, WorkerState::Polling, 0, Some(Duration::from_millis(1)));
assert_eq!(s, FooterStatus::Synchronizing);
}
#[test]
fn never_connected_without_last_success() {
let s = pick_footer_status(false, WorkerState::Idle, 0, None, THRESHOLD);
let s = status(false, WorkerState::Idle, 0, None);
assert_eq!(s, FooterStatus::NeverConnected);
}
#[test]
fn offline_when_last_success_is_stale() {
let s = pick_footer_status(
let s = status(
false,
WorkerState::Idle,
0,
Some(Duration::from_secs(120)),
THRESHOLD,
);
assert_eq!(s, FooterStatus::Offline);
}
#[test]
fn online_when_last_success_is_fresh() {
let s = pick_footer_status(
false,
WorkerState::Idle,
0,
Some(Duration::from_secs(5)),
THRESHOLD,
);
let s = status(false, WorkerState::Idle, 0, Some(Duration::from_secs(5)));
assert_eq!(s, FooterStatus::Online);
}
#[test]
fn offline_threshold_is_inclusive_of_equal_age_as_online() {
// Exactly at threshold: still online (strict ">" in logic).
let s = status(false, WorkerState::Idle, 0, Some(THRESHOLD));
assert_eq!(s, FooterStatus::Online);
}
#[test]
fn offline_while_queue_has_items_but_worker_backing_off() {
let s = status(
false,
WorkerState::Idle,
3,
Some(Duration::from_secs(120)),
);
assert_eq!(s, FooterStatus::Offline);
}
#[test]
fn online_while_queue_has_items_but_worker_idle_and_recent_success() {
let s = status(false, WorkerState::Idle, 3, Some(Duration::from_secs(2)));
assert_eq!(s, FooterStatus::Online);
}
#[test]
fn never_connected_while_queue_has_items_and_no_success_ever() {
let s = status(false, WorkerState::Idle, 3, None);
assert_eq!(s, FooterStatus::NeverConnected);
}
// --- last_failure-driven scenarios ---
/// Core regression this fix addresses: server was reachable (fresh
/// last_success), then went offline mid-session; a single failed
/// upload must flip the footer to Offline immediately, without
/// waiting for the success-age threshold.
#[test]
fn failure_younger_than_success_forces_offline() {
let s = pick_footer_status(
false,
WorkerState::Idle,
1,
Some(Duration::from_secs(10)), // was online 10s ago
Some(Duration::from_secs(1)), // but failed 1s ago
THRESHOLD,
);
assert_eq!(s, FooterStatus::Offline);
}
/// Complement: success younger than the last failure → the server
/// recovered. Show Online.
#[test]
fn success_younger_than_failure_wins_back_online() {
let s = pick_footer_status(
false,
WorkerState::Idle,
0,
Some(THRESHOLD),
Some(Duration::from_secs(1)), // succeeded 1s ago
Some(Duration::from_secs(10)), // previous failure 10s ago
THRESHOLD,
);
assert_eq!(s, FooterStatus::Online);
}
/// Only a failure ever, no success: treat as Offline, not
/// NeverConnected — we tried and got rejected, which is a stronger
/// signal than "silent cold start".
#[test]
fn only_failure_no_success_is_offline() {
let s = pick_footer_status(
false,
WorkerState::Idle,
0,
None,
Some(Duration::from_secs(5)),
THRESHOLD,
);
assert_eq!(s, FooterStatus::Offline);
}
}