From 52c04fd817392d6ec06b9d7dd11b7be1922e5b29 Mon Sep 17 00:00:00 2001
From: Jarrett Ye <jarrett.ye@outlook.com>
Date: Tue, 24 Dec 2024 18:26:50 +0800
Subject: [PATCH 1/3] Fix/last date of existing card should not be positive in
 simulation

---
 rslib/src/scheduler/fsrs/simulator.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rslib/src/scheduler/fsrs/simulator.rs b/rslib/src/scheduler/fsrs/simulator.rs
index 70a6d90012..d9fc2bafac 100644
--- a/rslib/src/scheduler/fsrs/simulator.rs
+++ b/rslib/src/scheduler/fsrs/simulator.rs
@@ -75,10 +75,11 @@ impl Card {
                 CardQueue::DayLearn | CardQueue::Review => {
                     let due = card.original_or_current_due();
                     let relative_due = due - days_elapsed;
+                    let last_date = (relative_due - card.interval as i32).min(0) as f32;
                     Some(fsrs::Card {
                         difficulty: state.difficulty,
                         stability: state.stability,
-                        last_date: (relative_due - card.interval as i32) as f32,
+                        last_date,
                         due: relative_due as f32,
                     })
                 }

From 91ab83bd29a58d1637874f4a20ecc32e9ea1b6f2 Mon Sep 17 00:00:00 2001
From: Jarrett Ye <jarrett.ye@outlook.com>
Date: Wed, 25 Dec 2024 10:03:59 +0800
Subject: [PATCH 2/3] update fsrs-rs to v1.4.9

---
 Cargo.lock | 4 ++--
 Cargo.toml | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index d7e43c53e0..789a8f31a3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1860,9 +1860,9 @@ dependencies = [
 
 [[package]]
 name = "fsrs"
-version = "1.4.7"
+version = "1.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61218a50bf5c8da66b62be02f495c5d0b43de52ec37fae036a0e68d4539ff59d"
+checksum = "a98432a03a213c1913372a40adb29132bec7dbd3562cd9c00cc440b477e5a904"
 dependencies = [
  "burn",
  "itertools 0.12.1",
diff --git a/Cargo.toml b/Cargo.toml
index 3d6926043e..c11abc07ae 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ git = "https://github.com/ankitects/linkcheck.git"
 rev = "184b2ca50ed39ca43da13f0b830a463861adb9ca"
 
 [workspace.dependencies.fsrs]
-version = "=1.4.7"
+version = "=1.4.9"
 # git = "https://github.com/open-spaced-repetition/fsrs-rs.git"
 # rev = "58ca25ed2bc4bb1dc376208bbcaed7f5a501b941"
 # path = "../open-spaced-repetition/fsrs-rs"

From 33874971cc90ae92f9d334611997f44ea2ddbf65 Mon Sep 17 00:00:00 2001
From: Jarrett Ye <jarrett.ye@outlook.com>
Date: Wed, 25 Dec 2024 10:09:17 +0800
Subject: [PATCH 3/3] ./ninja fix:minilints

---
 cargo/licenses.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cargo/licenses.json b/cargo/licenses.json
index 3d350ee2fa..b1ce26b98e 100644
--- a/cargo/licenses.json
+++ b/cargo/licenses.json
@@ -1225,7 +1225,7 @@
   },
   {
     "name": "fsrs",
-    "version": "1.4.7",
+    "version": "1.4.9",
     "authors": "Open Spaced Repetition",
     "repository": "https://github.com/open-spaced-repetition/fsrs-rs",
     "license": "BSD-3-Clause",