Save last EPUB location

Author: richardr1126

src/app/epub/[id]/page.tsx

@@ -9,16 +9,21 @@ import { EPUBViewer } from '@/components/EPUBViewer';
 import { Button } from '@headlessui/react';
 import { DocumentSettings } from '@/components/DocumentSettings';
 import { SettingsIcon } from '@/components/icons/Icons';
+import { useTTS } from "@/contexts/TTSContext";
 
 export default function EPUBPage() {
   const { id } = useParams();
   const { setCurrentDocument, currDocName, clearCurrDoc } = useEPUB();
+  const { stop } = useTTS();
   const [error, setError] = useState<string | null>(null);
   const [isLoading, setIsLoading] = useState(true);
   const [isSettingsOpen, setIsSettingsOpen] = useState(false);
 
   const loadDocument = useCallback(async () => {
     if (!isLoading) return;
+    console.log('Loading new epub (from page.tsx)');
+    stop(); // Reset TTS when loading new document
+
     try {
       if (!id) {
         setError('Document not found');
@@ -31,7 +36,7 @@ export default function EPUBPage() {
     } finally {
       setIsLoading(false);
     }
-  }, [isLoading, id, setCurrentDocument]);
+  }, [isLoading, id, setCurrentDocument, stop]);
 
   useEffect(() => {
     loadDocument();

src/app/pdf/[id]/page.tsx

@@ -32,6 +32,7 @@ export default function PDFViewerPage() {
   const loadDocument = useCallback(async () => {
     if (!isLoading) return; // Prevent calls when not loading new doc
     console.log('Loading new document (from page.tsx)');
+    stop(); // Reset TTS when loading new document
     try {
       if (!id) {
         setError('Document not found');
@@ -44,7 +45,7 @@ export default function PDFViewerPage() {
     } finally {
       setIsLoading(false);
     }
-  }, [isLoading, id, setCurrentDocument]);
+  }, [isLoading, id, setCurrentDocument, stop]);
 
   useEffect(() => {
     loadDocument();
@@ -59,7 +60,7 @@ export default function PDFViewerPage() {
         <p className="text-red-500 mb-4">{error}</p>
         <Link
           href="/"
-          onClick={() => {clearCurrDoc(); stop();}}
+          onClick={() => {clearCurrDoc();}}
           className="inline-flex items-center px-3 py-1 bg-base text-foreground rounded-lg hover:bg-offbase transition-colors"
         >
           <svg className="w-4 h-4 mr-2 text-muted" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -78,7 +79,7 @@ export default function PDFViewerPage() {
           <div className="flex items-center gap-2">
             <Link
               href="/"
-              onClick={() => {clearCurrDoc(); stop();}}
+              onClick={() => {clearCurrDoc();}}
               className="inline-flex items-center px-3 py-1 bg-base text-foreground rounded-lg hover:bg-offbase transform transition-transform duration-200 ease-in-out hover:scale-[1.02]"
             >
               <svg className="w-4 h-4 mr-2" fill="currentColor" stroke="currentColor" viewBox="0 0 24 24">

src/components/EPUBViewer.tsx

@@ -1,11 +1,13 @@
 'use client';
 
 import { useEffect, useRef, useCallback } from 'react';
+import { useParams } from 'next/navigation';
 import dynamic from 'next/dynamic';
 import { useEPUB } from '@/contexts/EPUBContext';
 import { useTTS } from '@/contexts/TTSContext';
 import { DocumentSkeleton } from '@/components/DocumentSkeleton';
 import TTSPlayer from '@/components/player/TTSPlayer';
+import { setLastDocumentLocation } from '@/utils/indexedDB';
 import type { Rendition, Book, NavItem } from 'epubjs';
 
 const ReactReader = dynamic(() => import('react-reader').then(mod => mod.ReactReader), {
@@ -18,13 +20,27 @@ interface EPUBViewerProps {
 }
 
 export function EPUBViewer({ className = '' }: EPUBViewerProps) {
+  const { id } = useParams();
   const { currDocData, currDocName, currDocPage, extractPageText } = useEPUB();
   const { setEPUBPageInChapter, registerLocationChangeHandler } = useTTS();
   const bookRef = useRef<Book | null>(null);
   const rendition = useRef<Rendition | undefined>(undefined);
   const toc = useRef<NavItem[]>([]);
   const locationRef = useRef<string | number>(currDocPage);
 
+  // Load the last location when component mounts
+  // useEffect(() => {
+  //   const loadLastLocation = async () => {
+  //     if (id) {
+  //       const lastLocation = await getLastDocumentLocation(id as string);
+  //       if (lastLocation) {
+  //         locationRef.current = lastLocation;
+  //       }
+  //     }
+  //   };
+  //   loadLastLocation();
+  // }, [id]);
+
   const handleLocationChanged = useCallback((location: string | number) => {
     // Handle special 'next' and 'prev' cases
     if (location === 'next' && rendition.current) {
@@ -42,12 +58,21 @@ export function EPUBViewer({ className = '' }: EPUBViewerProps) {
 
       console.log('Displayed:', displayed, 'Chapter:', chapter);
 
+
+      if (locationRef.current !== 1) {
+        // Save the location to IndexedDB
+        if (id) {
+          console.log('Saving location:', location);
+          setLastDocumentLocation(id as string, location.toString());
+        }
+      }
+
       locationRef.current = location;
+      
       setEPUBPageInChapter(displayed.page, displayed.total, chapter?.label || '');
-
       extractPageText(bookRef.current, rendition.current);
     }
-  }, [setEPUBPageInChapter, extractPageText]);
+  }, [id, setEPUBPageInChapter, extractPageText]);
 
   // Register the location change handler
   useEffect(() => {

src/contexts/EPUBContext.tsx

@@ -17,7 +17,7 @@ interface EPUBContextType {
   currDocData: ArrayBuffer | undefined;
   currDocName: string | undefined;
   currDocPages: number | undefined;
-  currDocPage: number;
+  currDocPage: number | string;
   currDocText: string | undefined;
   setCurrentDocument: (id: string) => Promise<void>;
   clearCurrDoc: () => void;
@@ -28,7 +28,7 @@ interface EPUBContextType {
 const EPUBContext = createContext<EPUBContextType | undefined>(undefined);
 
 export function EPUBProvider({ children }: { children: ReactNode }) {
-  const { setText: setTTSText, stop, currDocPage, currDocPages, setCurrDocPages } = useTTS();
+  const { setText: setTTSText, currDocPage, currDocPages, setCurrDocPages } = useTTS();
 
   // Current document state
   const [currDocData, setCurrDocData] = useState<ArrayBuffer>();
@@ -51,8 +51,7 @@ export function EPUBProvider({ children }: { children: ReactNode }) {
     setCurrDocName(undefined);
     setCurrDocText(undefined);
     setCurrDocPages(undefined);
-    stop();
-  }, [setCurrDocPages, stop]);
+  }, [setCurrDocPages]);
 
   /**
    * Sets the current document based on its ID

src/contexts/PDFContext.tsx

@@ -69,7 +69,7 @@ const PDFContext = createContext<PDFContextType | undefined>(undefined);
  * Handles document loading, text processing, and integration with TTS.
  */
 export function PDFProvider({ children }: { children: ReactNode }) {
-  const { setText: setTTSText, currDocPage, currDocPages, setCurrDocPages } = useTTS();
+  const { setText: setTTSText, stop, currDocPageNumber: currDocPage, currDocPages, setCurrDocPages } = useTTS();
 
   // Current document state
   const [currDocURL, setCurrDocURL] = useState<string>();
@@ -136,8 +136,8 @@ export function PDFProvider({ children }: { children: ReactNode }) {
     setCurrDocURL(undefined);
     setCurrDocText(undefined);
     setCurrDocPages(undefined);
-    setTTSText('');
-  }, [setCurrDocPages, setTTSText]);
+    stop();
+  }, [setCurrDocPages, stop]);
 
   // Context value memoization
   const contextValue = useMemo(

src/contexts/TTSContext.tsx

@@ -26,6 +26,7 @@ import React, {
 import OpenAI from 'openai';
 import { Howl } from 'howler';
 import toast from 'react-hot-toast';
+import { useParams } from 'next/navigation';
 
 import { useConfig } from '@/contexts/ConfigContext';
 import { splitIntoSentences, preprocessSentenceForAudio } from '@/utils/nlp';
@@ -34,6 +35,7 @@ import { useAudioCache } from '@/hooks/audio/useAudioCache';
 import { useVoiceManagement } from '@/hooks/audio/useVoiceManagement';
 import { useMediaSession } from '@/hooks/audio/useMediaSession';
 import { useAudioContext } from '@/hooks/audio/useAudioContext';
+import { getLastDocumentLocation } from '@/utils/indexedDB';
 
 // Media globals
 declare global {
@@ -52,7 +54,8 @@ interface TTSContextType {
   currentSentence: string;
 
   // Navigation
-  currDocPage: number;
+  currDocPage: string | number;  // Change this to allow both types
+  currDocPageNumber: number; // For PDF
   currDocPages: number | undefined;
 
   // Voice settings
@@ -110,6 +113,9 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
     locationChangeHandlerRef.current = handler;
   }, []);
 
+  // Get document ID from URL params
+  const { id } = useParams();
+
   /**
    * State Management
    */
@@ -120,13 +126,15 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
   const [isProcessing, setIsProcessing] = useState(false);
   const [speed, setSpeed] = useState(voiceSpeed);
   const [voice, setVoice] = useState(configVoice);
-  const [currDocPage, setCurrDocPage] = useState<number>(1);
+  const [currDocPage, setCurrDocPage] = useState<string | number>(1);
   const [currDocPages, setCurrDocPages] = useState<number>();
   const [nextPageLoading, setNextPageLoading] = useState(false);
 
   // Add this state to track if we're in EPUB mode
   const [isEPUB, setIsEPUB] = useState(false);
 
+  const currDocPageNumber = (!isEPUB ? parseInt(currDocPage.toString()) : 1);
+
   console.log('page:', currDocPage, 'pages:', currDocPages);
 
   /**
@@ -137,8 +145,8 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
    */
   const incrementPage = useCallback((num = 1) => {
     setNextPageLoading(true);
-    setCurrDocPage(currDocPage + num);
-  }, [currDocPage]);
+    setCurrDocPage(currDocPageNumber + num);
+  }, [currDocPageNumber]);
 
   /**
    * Sets the current text and splits it into sentences
@@ -167,12 +175,12 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
           position: 'top-center',
         });
         return;
-      } else if (currDocPage < currDocPages!) {
+      } else if (currDocPageNumber < currDocPages!) {
         // For PDF, increment the page
         incrementPage();
 
-        toast.success(`Skipping blank page ${currDocPage}`, {
-          id: `page-${currDocPage}`,
+        toast.success(`Skipping blank page ${currDocPageNumber}`, {
+          id: `page-${currDocPageNumber}`,
           iconTheme: {
             primary: 'var(--accent)',
             secondary: 'var(--background)',
@@ -190,7 +198,7 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
 
     setSentences(newSentences);
     setNextPageLoading(false);
-  }, [isPlaying, skipBlank, currDocPage, currDocPages, incrementPage, isEPUB]);
+  }, [isPlaying, skipBlank, currDocPageNumber, currDocPages, incrementPage, isEPUB]);
 
   /**
    * Stops the current audio playback and clears the active Howl instance
@@ -299,8 +307,8 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
     // For PDFs and other documents, check page bounds
     if (!isEPUB) {
       // Handle next/previous page transitions
-      if ((nextIndex >= sentences.length && currDocPage < currDocPages!) || 
-          (nextIndex < 0 && currDocPage > 1)) {
+      if ((nextIndex >= sentences.length && currDocPageNumber < currDocPages!) || 
+          (nextIndex < 0 && currDocPageNumber > 1)) {
         console.log('PDF: Advancing to next/prev page');
         setCurrentIndex(0);
         setSentences([]);
@@ -309,12 +317,12 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
       }
 
       // Handle end of document (PDF only)
-      if (nextIndex >= sentences.length && currDocPage >= currDocPages!) {
+      if (nextIndex >= sentences.length && currDocPageNumber >= currDocPages!) {
         console.log('PDF: Reached end of document');
         setIsPlaying(false);
       }
     }
-  }, [currentIndex, incrementPage, sentences, currDocPage, currDocPages, isEPUB]);
+  }, [currentIndex, incrementPage, sentences, currDocPageNumber, currDocPages, isEPUB]);
 
   /**
    * Moves forward one sentence in the text
@@ -637,6 +645,7 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
     isProcessing,
     currentSentence: sentences[currentIndex] || '',
     currDocPage,
+    currDocPageNumber,
     currDocPages,
     availableVoices,
     togglePlay,
@@ -657,6 +666,7 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
     sentences,
     currentIndex,
     currDocPage,
+    currDocPageNumber,
     currDocPages,
     availableVoices,
     togglePlay,
@@ -680,6 +690,20 @@ export function TTSProvider({ children }: { children: React.ReactNode }) {
     skipBackward,
   });
 
+  // Load last location on mount for EPUB only
+  useEffect(() => {
+    if (id && isEPUB) {
+      getLastDocumentLocation(id as string).then(lastLocation => {
+        if (lastLocation) {
+          setCurrDocPage(lastLocation);
+          if (locationChangeHandlerRef.current) {
+            locationChangeHandlerRef.current(lastLocation);
+          }
+        }
+      });
+    }
+  }, [id, isEPUB]);
+
   /**
    * Renders the TTS context provider with its children
    *