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Ensure fuzz doesn't go backwards

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Closes #2694
This commit is contained in:
Damien Elmes 2023-10-03 13:23:27 +10:00
parent 259ed9c34d
commit 41bddfc6cb
1 changed files with 27 additions and 3 deletions
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30
rslib/src/scheduler/states/review.rs
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@ -160,9 +160,33 @@ impl ReviewState {
ctx: &StateContext,
states: &NextStates,
) -> (u32, u32, u32) {
let hard = constrain_passing_interval(ctx, states.hard.interval as f32, 1, true);
let good = constrain_passing_interval(ctx, states.good.interval as f32, hard + 1, true);
let easy = constrain_passing_interval(ctx, states.easy.interval as f32, good + 1, true);
// If the interval is larger than last time, don't allow fuzz to go backwards
let greater_than_last = |interval: u32| {
if interval > self.scheduled_days {
self.scheduled_days + 1
} else {
// User may have changed their retention factor; don't limit
0
}
};
let hard = constrain_passing_interval(
ctx,
states.hard.interval as f32,
greater_than_last(states.hard.interval).max(1),
true,
);
let good = constrain_passing_interval(
ctx,
states.good.interval as f32,
greater_than_last(states.good.interval).max(hard + 1),
true,
);
let easy = constrain_passing_interval(
ctx,
states.easy.interval as f32,
greater_than_last(states.easy.interval).max(good + 1),
true,
);
(hard, good, easy)
}