update FSRS to v0.2.0 (#2977)

* update FSRS to v0.2.0

* update comments

* ./ninja fix:minilints

* 1000 -> 400 in translation (dae)

Cargo.lock

@@ -1794,8 +1794,9 @@ dependencies = [
 
 [[package]]
 name = "fsrs"
-version = "0.1.0"
-source = "git+https://github.com/open-spaced-repetition/fsrs-rs.git?rev=58ca25ed2bc4bb1dc376208bbcaed7f5a501b941#58ca25ed2bc4bb1dc376208bbcaed7f5a501b941"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4938928321ed55a54cd8b90f0aa9dad79ee223aed6462cc37e83eb80b8bddb5a"
 dependencies = [
  "burn",
  "itertools 0.12.0",

Cargo.toml

@@ -35,8 +35,9 @@ git = "https://github.com/ankitects/linkcheck.git"
 rev = "184b2ca50ed39ca43da13f0b830a463861adb9ca"
 
 [workspace.dependencies.fsrs]
-git = "https://github.com/open-spaced-repetition/fsrs-rs.git"
-rev = "58ca25ed2bc4bb1dc376208bbcaed7f5a501b941"
+version = "0.2.0"
+# git = "https://github.com/open-spaced-repetition/fsrs-rs.git"
+# rev = "58ca25ed2bc4bb1dc376208bbcaed7f5a501b941"
 # path = "../../../fsrs-rs"
 
 [workspace.dependencies]

cargo/licenses.json

@@ -1216,12 +1216,12 @@
   },
   {
     "name": "fsrs",
-    "version": "0.1.0",
-    "authors": null,
-    "repository": null,
+    "version": "0.2.0",
+    "authors": "Open Spaced Repetition",
+    "repository": "https://github.com/open-spaced-repetition/fsrs-rs",
     "license": "BSD-3-Clause",
     "license_file": null,
-    "description": null
+    "description": "FSRS for Rust, including Optimizer and Scheduler"
   },
   {
     "name": "futf",

ftl/core/deck-config.ftl

@@ -335,11 +335,11 @@ deck-config-invalid-weights = Parameters must be either left blank to use the de
 deck-config-not-enough-history = Insufficient review history to perform this operation.
 deck-config-unable-to-determine-desired-retention =
     Unable to determine an optimal retention.
-deck-config-must-have-1000-reviews =
+deck-config-must-have-400-reviews =
     { $count ->
         [one] Only { $count } review was found.
        *[other] Only { $count } reviews were found.
-    } You must have at least 1000 reviews for this operation.
+    } You must have at least 400 reviews for this operation.
 # Numbers that control how aggressively the FSRS algorithm schedules cards
 deck-config-weights = FSRS parameters
 deck-config-compute-optimal-weights = Optimize FSRS parameters

rslib/src/error/mod.rs

@@ -114,9 +114,9 @@ pub enum AnkiError {
     InvalidMethodIndex,
     InvalidServiceIndex,
     FsrsWeightsInvalid,
-    /// Returned by fsrs-rs; may happen even if 1000+ reviews
+    /// Returned by fsrs-rs; may happen even if 400+ reviews
     FsrsInsufficientData,
-    /// Generated by our backend if count < 1000
+    /// Generated by our backend if count < 400
     FsrsInsufficientReviews {
         count: usize,
     },
@@ -175,7 +175,7 @@ impl AnkiError {
             AnkiError::NotFound { source } => source.message(tr),
             AnkiError::FsrsInsufficientData => tr.deck_config_not_enough_history().into(),
             AnkiError::FsrsInsufficientReviews { count } => {
-                tr.deck_config_must_have_1000_reviews(*count).into()
+                tr.deck_config_must_have_400_reviews(*count).into()
             }
             AnkiError::FsrsWeightsInvalid => tr.deck_config_invalid_weights().into(),
             AnkiError::SchedulerUpgradeRequired => {

rslib/src/scheduler/fsrs/weights.rs

@@ -27,7 +27,7 @@ use crate::search::SortMode;
 pub(crate) type Weights = Vec<f32>;
 
 impl Collection {
-    /// Note this does not return an error if there are less than 1000 items -
+    /// Note this does not return an error if there are less than 400 items -
     /// the caller should instead check the fsrs_items count in the return
     /// value.
     pub fn compute_weights(
@@ -39,12 +39,12 @@ impl Collection {
         let mut anki_progress = self.new_progress_handler::<ComputeWeightsProgress>();
         let timing = self.timing_today()?;
         let revlogs = self.revlog_for_srs(search)?;
-        if revlogs.len() < 1000 {
+        if revlogs.len() < 400 {
             return Err(AnkiError::FsrsInsufficientReviews {
                 count: revlogs.len(),
             });
         }
-        let items = fsrs_items_for_training(revlogs, timing.next_day_at);
+        let items = fsrs_items_for_training(revlogs.clone(), timing.next_day_at);
         let fsrs_items = items.len() as u32;
         anki_progress.update(false, |p| {
             p.fsrs_items = fsrs_items;
@@ -70,7 +70,7 @@ impl Collection {
             }
         });
         let fsrs = FSRS::new(None)?;
-        let weights = fsrs.compute_weights(items, Some(progress2))?;
+        let weights = fsrs.compute_weights(items, revlogs.len() < 1000, Some(progress2))?;
         Ok(ComputeFsrsWeightsResponse {
             weights,
             fsrs_items,
@@ -123,7 +123,7 @@ impl Collection {
             .col
             .storage
             .get_revlog_entries_for_searched_cards_in_card_order()?;
-        if revlogs.len() < 1000 {
+        if revlogs.len() < 400 {
             return Err(AnkiError::FsrsInsufficientReviews {
                 count: revlogs.len(),
             });

rslib/src/scheduler/service/mod.rs

@@ -307,6 +307,7 @@ impl crate::services::BackendSchedulerService for Backend {
         let fsrs_items = req.items.len() as u32;
         let weights = fsrs.compute_weights(
             req.items.into_iter().map(fsrs_item_proto_to_fsrs).collect(),
+            false,
             None,
         )?;
         Ok(ComputeFsrsWeightsResponse {

ts/deck-options/FsrsOptions.svelte

@@ -108,9 +108,9 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
                     if (computeWeightsProgress) {
                         computeWeightsProgress.current = computeWeightsProgress.total;
                     }
-                    if (resp.fsrsItems < 1000) {
+                    if (resp.fsrsItems < 400) {
                         alert(
-                            tr.deckConfigMustHave1000Reviews({ count: resp.fsrsItems }),
+                            tr.deckConfigMustHave400Reviews({ count: resp.fsrsItems }),
                         );
                     } else {
                         $config.fsrsWeights = resp.weights;