From 710107fe2952418fa3fc5d97c3d2a67dc219d300 Mon Sep 17 00:00:00 2001
From: Egor Gorbachev <7gorbachevm@gmail.com>
Date: Mon, 11 Dec 2023 14:38:41 +0700
Subject: [PATCH] Replay speaking card (#23)

* Avoid reporting about unsupported Speech synthesis API on old Android

* Allow to replay speaking card
---
 src/lib/typescript/enum-values.ts        |  2 +-
 src/lib/voice-playback/speak.ts          | 14 +++------
 src/screens/deck-review/card-speaker.tsx | 40 ++++++++++++++++++++++++
 src/screens/deck-review/card.tsx         | 11 +++++--
 src/store/card-under-review-store.ts     |  8 +++--
 src/store/deck-form-store.ts             |  2 +-
 src/store/review-store.ts                | 17 +++-------
 7 files changed, 67 insertions(+), 27 deletions(-)
 create mode 100644 src/screens/deck-review/card-speaker.tsx

diff --git a/src/lib/typescript/enum-values.ts b/src/lib/typescript/enum-values.ts
index d2e6c02a..623b4f57 100644
--- a/src/lib/typescript/enum-values.ts
+++ b/src/lib/typescript/enum-values.ts
@@ -9,5 +9,5 @@ export function enumValues<E extends EnumLike>(enumObject: E): E[keyof E][] {
 export function enumEntries<E extends EnumLike>(
   enumObject: E,
 ): [keyof E, E[keyof E]][] {
-  return Object.entries(enumObject) as any
+  return Object.entries(enumObject) as any;
 }
diff --git a/src/lib/voice-playback/speak.ts b/src/lib/voice-playback/speak.ts
index 46db9e63..ea7dcc21 100644
--- a/src/lib/voice-playback/speak.ts
+++ b/src/lib/voice-playback/speak.ts
@@ -1,5 +1,3 @@
-import { reportHandledErrorOnce } from "../rollbar/rollbar.tsx";
-
 export enum SpeakLanguageEnum {
   USEnglish = "en-US",
   Italian = "it-IT",
@@ -16,6 +14,7 @@ export enum SpeakLanguageEnum {
   Japanese = "ja-JP",
   Romanian = "ro-RO",
   Portuguese = "pt-PT",
+  BrazilianPortuguese = "pt-BR",
   Thai = "th-TH",
   Croatian = "hr-HR",
   Slovak = "sk-SK",
@@ -45,15 +44,12 @@ export const languageKeyToHuman = (str: string): string => {
   return str.replace(/([A-Z])/g, " $1").trim();
 };
 
-export const speak = (text: string, language: SpeakLanguageEnum) => {
-  const isSpeechSynthesisSupported =
-    "speechSynthesis" in window &&
-    typeof SpeechSynthesisUtterance !== "undefined";
+export const isSpeechSynthesisSupported =
+  "speechSynthesis" in window &&
+  typeof SpeechSynthesisUtterance !== "undefined";
 
+export const speak = (text: string, language: SpeakLanguageEnum) => {
   if (!isSpeechSynthesisSupported) {
-    reportHandledErrorOnce(
-      `Speech synthesis is not supported in this browser. Browser info: ${navigator.userAgent}`,
-    );
     return;
   }
 
diff --git a/src/screens/deck-review/card-speaker.tsx b/src/screens/deck-review/card-speaker.tsx
new file mode 100644
index 00000000..47631520
--- /dev/null
+++ b/src/screens/deck-review/card-speaker.tsx
@@ -0,0 +1,40 @@
+import { CardUnderReviewStore } from "../../store/card-under-review-store.ts";
+import { isSpeechSynthesisSupported } from "../../lib/voice-playback/speak.ts";
+import { throttle } from "../../lib/throttle/throttle.ts";
+import { css, cx } from "@emotion/css";
+import { theme } from "../../ui/theme.tsx";
+import React from "react";
+import { observer } from "mobx-react-lite";
+
+type Props = {
+  card: CardUnderReviewStore;
+  type: "front" | "back";
+};
+
+export const CardSpeaker = observer((props: Props) => {
+  const { card, type } = props;
+  if (
+    !isSpeechSynthesisSupported ||
+    !card.isOpened ||
+    type !== card.deckSpeakField ||
+    !card.isSpeakingCardsEnabledSettings
+  ) {
+    return null;
+  }
+
+  // throttle is needed to avoid user clicking on the speaker button many times in a row hence creating many sounds
+  return (
+    <i
+      onClick={throttle(card.speak, 500)}
+      className={cx(
+        "mdi mdi-play-circle mdi-24px",
+        css({
+          cursor: "pointer",
+          position: "relative",
+          top: 3,
+          color: theme.buttonColor,
+        }),
+      )}
+    />
+  );
+});
diff --git a/src/screens/deck-review/card.tsx b/src/screens/deck-review/card.tsx
index a2bd7a92..80d8b1c4 100644
--- a/src/screens/deck-review/card.tsx
+++ b/src/screens/deck-review/card.tsx
@@ -5,6 +5,7 @@ import { theme } from "../../ui/theme.tsx";
 import { observer } from "mobx-react-lite";
 import { CardUnderReviewStore } from "../../store/card-under-review-store.ts";
 import { HorizontalDivider } from "../../ui/horizontal-divider.tsx";
+import { CardSpeaker } from "./card-speaker.tsx";
 
 export const cardSize = 310;
 
@@ -42,9 +43,15 @@ export const Card = observer(({ card, style, animate }: Props) => {
           color: theme.textColor,
         })}
       >
-        <div>{card.front}</div>
+        <div>
+          {card.front} <CardSpeaker card={card} type={"front"} />
+        </div>
         {card.isOpened ? <HorizontalDivider /> : null}
-        {card.isOpened ? <div>{card.back}</div> : null}
+        {card.isOpened ? (
+          <div>
+            {card.back} <CardSpeaker card={card} type={"back"} />
+          </div>
+        ) : null}
         {card.isOpened && card.example ? (
           <div
             className={css({ fontWeight: 400, fontSize: 14, paddingTop: 8 })}
diff --git a/src/store/card-under-review-store.ts b/src/store/card-under-review-store.ts
index a40e27d3..92784069 100644
--- a/src/store/card-under-review-store.ts
+++ b/src/store/card-under-review-store.ts
@@ -25,7 +25,11 @@ export class CardUnderReviewStore {
   isOpened = false;
   state?: CardState;
 
-  constructor(card: DeckCardDbType, deck: DeckWithCardsWithReviewType) {
+  constructor(
+    card: DeckCardDbType,
+    deck: DeckWithCardsWithReviewType,
+    public isSpeakingCardsEnabledSettings: boolean,
+  ) {
     this.id = card.id;
     this.front = card.front;
     this.back = card.back;
@@ -51,7 +55,7 @@ export class CardUnderReviewStore {
   }
 
   speak() {
-    if (!this.deckSpeakLocale || !this.deckSpeakField) {
+    if (!this.isSpeakingCardsEnabledSettings || !this.deckSpeakLocale || !this.deckSpeakField) {
       return;
     }
     if (!isEnumValid(this.deckSpeakLocale, SpeakLanguageEnum)) {
diff --git a/src/store/deck-form-store.ts b/src/store/deck-form-store.ts
index 354dc793..d7d0fc07 100644
--- a/src/store/deck-form-store.ts
+++ b/src/store/deck-form-store.ts
@@ -337,7 +337,7 @@ export class DeckFormStore {
     })
       .then((response) => {
         this.form = createUpdateForm(response.id, response);
-        deckListStore.replaceDeck(response)
+        deckListStore.replaceDeck(response);
       })
       .finally(
         action(() => {
diff --git a/src/store/review-store.ts b/src/store/review-store.ts
index 863fa633..cb3f450b 100644
--- a/src/store/review-store.ts
+++ b/src/store/review-store.ts
@@ -24,7 +24,6 @@ export class ReviewStore {
   initialCardCount?: number;
 
   isReviewSending = false;
-  isSpeakingCards = false;
 
   constructor() {
     makeAutoObservable(this, {}, { autoBind: true });
@@ -32,13 +31,13 @@ export class ReviewStore {
 
   startDeckReview(
     deck: DeckWithCardsWithReviewType,
-    isSpeakingCards?: boolean,
+    isSpeakingCardsEnabledSettings?: boolean,
   ) {
     if (!deck.cardsToReview.length) {
       return;
     }
     deck.cardsToReview.forEach((card) => {
-      this.cardsToReview.push(new CardUnderReviewStore(card, deck));
+      this.cardsToReview.push(new CardUnderReviewStore(card, deck, !!isSpeakingCardsEnabledSettings));
     });
 
     this.initialCardCount = this.cardsToReview.length;
@@ -46,13 +45,11 @@ export class ReviewStore {
     if (this.cardsToReview.length > 1) {
       this.nextCardId = this.cardsToReview[1].id;
     }
-
-    this.isSpeakingCards = !!isSpeakingCards;
   }
 
   startAllRepeatReview(
     myDecks: DeckWithCardsWithReviewType[],
-    isSpeakingCards?: boolean,
+    isSpeakingCardsEnabledSettings?: boolean,
   ) {
     if (!myDecks.length) {
       return;
@@ -62,7 +59,7 @@ export class ReviewStore {
       deck.cardsToReview
         .filter((card) => card.type === "repeat")
         .forEach((card) => {
-          this.cardsToReview.push(new CardUnderReviewStore(card, deck));
+          this.cardsToReview.push(new CardUnderReviewStore(card, deck, !!isSpeakingCardsEnabledSettings));
         });
     });
 
@@ -75,8 +72,6 @@ export class ReviewStore {
     if (this.cardsToReview.length > 1) {
       this.nextCardId = this.cardsToReview[1].id;
     }
-
-    this.isSpeakingCards = !!isSpeakingCards;
   }
 
   get currentCard() {
@@ -103,9 +98,7 @@ export class ReviewStore {
     const currentCard = this.currentCard;
     assert(currentCard, "Current card should not be empty");
     currentCard.open();
-    if (this.isSpeakingCards) {
-      currentCard.speak();
-    }
+    currentCard.speak();
   }
 
   changeState(cardState: CardState) {