From bbf575e491d3e620b0b1a85304f858269bdbd0fe Mon Sep 17 00:00:00 2001
From: Luc Mcgrady <lucmcgrady@gmail.com>
Date: Fri, 31 Oct 2025 12:06:58 +0000
Subject: [PATCH] Added: TypeAnswer replacement

---
 proto/anki/scheduler.proto            |  1 +
 rslib/src/scheduler/service/mod.rs    | 39 ++++++++++++++++++++++++++-
 ts/routes/reviewer/reviewer.ts        |  6 ++++-
 ts/routes/reviewer/reviewerRequest.ts |  7 ++++-
 4 files changed, 50 insertions(+), 3 deletions(-)

diff --git a/proto/anki/scheduler.proto b/proto/anki/scheduler.proto
index 3588c4117..2cf0108f8 100644
--- a/proto/anki/scheduler.proto
+++ b/proto/anki/scheduler.proto
@@ -306,6 +306,7 @@ message NextCardDataResponse {
     string css = 5;
     string body_class = 6;
     bool autoplay = 7;
+    optional string typed_answer = 12;
 
     repeated card_rendering.AVTag question_av_tags = 8;
     repeated card_rendering.AVTag answer_av_tags = 9;
diff --git a/rslib/src/scheduler/service/mod.rs b/rslib/src/scheduler/service/mod.rs
index addbc4c87..5ba32acb9 100644
--- a/rslib/src/scheduler/service/mod.rs
+++ b/rslib/src/scheduler/service/mod.rs
@@ -4,6 +4,8 @@
 mod answering;
 mod states;
 
+use std::sync::LazyLock;
+
 use anki_proto::cards;
 use anki_proto::generic;
 use anki_proto::scheduler;
@@ -25,6 +27,7 @@ use fsrs::ComputeParametersInput;
 use fsrs::FSRSItem;
 use fsrs::FSRSReview;
 use fsrs::FSRS;
+use regex::Regex;
 
 use crate::backend::Backend;
 use crate::card_rendering::service::rendered_nodes_to_proto;
@@ -34,7 +37,9 @@ use crate::scheduler::new::NewCardDueOrder;
 use crate::scheduler::states::CardState;
 use crate::scheduler::states::SchedulingStates;
 use crate::search::SortMode;
+use crate::services::NotesService;
 use crate::stats::studied_today;
+use crate::template::RenderedNode;
 
 impl crate::services::SchedulerService for Collection {
     /// This behaves like _updateCutoff() in older code - it also unburies at
@@ -411,16 +416,48 @@ impl crate::services::SchedulerService for Collection {
 
             let config = self.deck_config_for_card(&next_card.card)?;
 
+            // Typed answer replacements
+            static ANSWER_REGEX: LazyLock<Regex> =
+                LazyLock::new(|| Regex::new(r"\[\[type:(.+?:)?(.+?)\]\]").unwrap());
+
+            const ANSWER_HTML: &str = "<center>
+<input type=text id=typeans onkeypress=\"_typeAnsPress();\"
+   style=\"font-family: '{self.typeFont}'; font-size: {self.typeSize}px;\">
+</center>";
+
+            let mut q_nodes = render.qnodes;
+            let typed_answer_parent_node = q_nodes.iter_mut().find_map(|node| {
+                if let RenderedNode::Text { text } = node {
+                    let mut out = None;
+                    *text = ANSWER_REGEX
+                        .replace(text, |cap: &regex::Captures<'_>| {
+                            out = Some(cap[2].to_string());
+                            ANSWER_HTML
+                        })
+                        .to_string();
+                    out
+                } else {
+                    None
+                }
+            });
+
+            let typed_answer = typed_answer_parent_node.map(|field| {
+                let note = self.get_note(next_card.card.note_id.into()).unwrap();
+                let notetype = self.get_notetype(note.notetype_id.into()).unwrap().unwrap();
+                note.fields[notetype.get_field_ord(&field).unwrap()].clone()
+            });
+
             Ok(NextCardDataResponse {
                 next_card: Some(NextCardData {
                     queue: Some(queue.into()),
 
                     css: render.css.clone(),
-                    partial_front: rendered_nodes_to_proto(render.qnodes),
+                    partial_front: rendered_nodes_to_proto(q_nodes),
                     partial_back: rendered_nodes_to_proto(render.anodes),
 
                     answer_buttons,
                     autoplay: !config.inner.disable_autoplay,
+                    typed_answer,
 
                     // Filled by python
                     front: "".to_string(),
diff --git a/ts/routes/reviewer/reviewer.ts b/ts/routes/reviewer/reviewer.ts
index cac8429fd..40149c457 100644
--- a/ts/routes/reviewer/reviewer.ts
+++ b/ts/routes/reviewer/reviewer.ts
@@ -27,6 +27,7 @@ export function updateNightMode() {
 
 export class ReviewerState {
     answerHtml = "";
+    currentTypedAnswer = "";
     _cardData: NextCardDataResponse_NextCardData | undefined = undefined;
     beginAnsweringMs = Date.now();
     readonly cardClass = writable("");
@@ -42,13 +43,16 @@ export class ReviewerState {
         addEventListener("message", this.onMessage.bind(this));
     }
 
-    onMessage(e: MessageEvent<ReviewerRequest>) {
+    async onMessage(e: MessageEvent<ReviewerRequest>) {
         switch (e.data.type) {
             case "audio": {
                 const tags = get(this.answerShown) ? this._cardData!.answerAvTags : this._cardData!.questionAvTags;
                 playAvtags({ tags: [tags[e.data.index]] });
                 break;
             }
+            case "typed": {
+                this.currentTypedAnswer = e.data.value;
+            }
         }
     }
 
diff --git a/ts/routes/reviewer/reviewerRequest.ts b/ts/routes/reviewer/reviewerRequest.ts
index aa4d3c786..6cefa1919 100644
--- a/ts/routes/reviewer/reviewerRequest.ts
+++ b/ts/routes/reviewer/reviewerRequest.ts
@@ -6,4 +6,9 @@ interface AudioMessage {
     index: number;
 }
 
-export type ReviewerRequest = AudioMessage;
+interface CompareTypedAnswerMessage {
+    type: "typed";
+    value: string;
+}
+
+export type ReviewerRequest = AudioMessage | CompareTypedAnswerMessage;