Desktop app (#308)

* Implement build profiles and feature policy for offline desktop builds

* Introduce unified cross-platform Settings Hub

* Refactor main settings into a hierarchical page-based navigation model

* Refactor library projection to use shared multiplatform logic

* Refactor UI state consumption by removing intermediate screen models

* Introduce AndroidSharedStateBridge to centralize state mapping and reduction logic

* Refactor state management for tabs, selection, and pinning to use shared bridge logic

* Refactor file type management and validation into a centralized shared module

* Centralize file type resolution and improve handling of unknown types

* Centralize book import logic with SharedImportPlanner

* Refactor magnifier geometry logic and coordinate mapping

* Properly handle orientation changes in scroll-locked PDF reader

* Add screen orientation controls to EPUB and PDF readers

* Implement right-to-left (RTL) pagination support and refactor reader menus

* Separate right-to-left pagination settings for PDF and EPUB

* Ensure PDF page data is scoped by document key for multi tab support

* Implement theme-aware link styling for the epub reader

* Implement jump history for back and forward navigation in the epub reader

* Improve locator handling and navigation logic in paginated reader mode

* Implement stable pagination navigation and location tracking

* Centralize banner message management and auto-dismiss logic in MainViewModel

* Implement zoom and pan state preservation for PDF pan lock mode

* Enhance reader navigation UI and workspace layout management in desktop app

* Refactor reader navigation sidebar and relocate search controls in desktop app

* Enhance reader UI with redesigned selection menus and bottom sheet overlays

* Implement custom highlight palettes and reader theme customization in desktop app

* Implement cross-platform modal layer and refine reader UI styling

* Improve highlight accuracy and implement metadata enrichment on book open in desktop app

* Implement two-page spread layout for paginated reader on desktop

* Implement persistent caching for book loading and pagination in desktop app

* Implement persistent caching for book loading and pagination in desktop app

* Optimize reader settings updates by separating layout and appearance changes in desktop app

* Improve desktop window branding and native Windows styling

* Enhance reader selection interactions and UI across EPUB and PDF viewers in desktop app

* Refine selection handle positioning and interaction logic

* Implement EPUB selection debug logging and improve handle targeting

* Optimize desktop book loading performance and UI responsiveness

* Implement anchored zoom gestures and rendering optimizations for the Desktop PDF viewer.

* Implement smooth zoom preview for the PDF reader in desktop app

* Optimize PDF rendering performance and responsiveness in the desktop reader

* Implement conditional diagnostic logging and update desktop build configuration

* Implemented hierarchical TOC, custom scrollbars, and improved desktop modal handling

* Added management options for annotations and highlights in the sidebar in desktop app

* Implemented `SharedStableOutlinedTextField` and updated text input fields to use `TextFieldValue` for improved cursor and selection stability.

* Refined library filters and enhanced OPDS functionality in desktop app

* Improved EPUB pagination measurement and implemented layout diagnostic logging for desktop app

* Added PPTX support including document parsing, rendering, and indexing

* Improved PPTX rendering and layout accuracy

* Implemented text autofit support for PPTX rendering

* Enhanced PPTX rendering with support for custom geometry, automatic numbering, table styles, and image opacity

* Improved EPUB pagination accuracy and added layout telemetry in desktop app

* Improved folder synchronization with metadata-only mode and hashed sidecar management in desktop app

* Implemented rich text font scaling and migrated desktop ink tools to custom pointer input handling

* Implemented billing account obfuscation

* Implemented hierarchical folder navigation and improved library selection functionality in desktop app

* Implemented platform-aware directory resolution and multi-platform native library support for desktop

* Added full-screen mode for the reader workspace

* Added PDF zoom indicator and interactive vertical scrollbar with page tooltips

* Refactored speech bubble prefetching to use a limited radius and improved ML detector initialization and lifecycle management

* Updated PDF indexing to replace existing page text and removed search result item keys

* Implemented "preparing" foreground notification for TTS service

* Optimized PDF rendering performance by pre-calculating page-specific annotations

* Refactored desktop packaging tasks and improved distribution configuration

* Optimized EPUB parser memory usage and added path traversal protection

* Refactored WorkManager monitoring logic and added work pruning

* Implemented comprehensive resource cleanup and memory management for WebView-based components to prevent memory leaks

* Implemented bitmap size limits and scaling to prevent canvas rendering errors

* Split long text paragraphs into multiple semantic blocks during HTML parsing

* Implemented local ActionMode for text selection to prevent platform crashes

* Refactored PPTX text layout, optimized HtmlParser block detection, and improved banner dismissal logic

* Added desktop startup splash screen and deferred WebView initialization

* Reorganized settings hub and added separate PDF reader defaults

* Implemented embedded cover extraction and metadata support for MOBI and FB2 formats

* Implemented batching for MetadataExtractionWorker and optimized EPUB metadata extraction performance.

* Implemented procedurally generated book covers and replaced static placeholders

* Redesigned search UI with a top bar and results overlay in desktop app

* Added PDF page gap and overlay visibility options and implemented DesktopBookImporter

* Refactored PDF reader UI with tabbed inspector and improved theme background handling in desktop

* Implemented PDF viewport persistence for zoom and scroll positions in desktop app

* Improved desktop fullscreen implementation and state restoration

* Implemented desktop window state persistence

* Implemented flavor-based branding and ProGuard configuration for desktop builds

* Implemented precise reader positioning and improved highlight rendering logic in desktop app

* Added support for user-editable book metadata

* Enhanced book metadata support and integrated info/edit dialogs

* Implemented embedded EPUB metadata editing

* Improved highlight mapping and added custom scrollbar styling for the reader.

* Reduced desktop WebView bundle size by excluding unused locales and runtime files

* Added neutral pan mode as the default PDF interaction state.

* Refactored library empty states and updated primary navigation tabs in desktop app

* Implemented native paginated reader and unified content rendering architecture in desktop epub reader

* Implemented native EPUB image rendering for desktop and improved block layout spacing with margin collapsing.

* Improved pagination overflow detection in desktop

* Implemented multi-block text selection with interactive handles and CFI support in desktop epub pagination

app/src/oss/java/com/aryan/reader/BillingClientWrapper.kt

@@ -14,6 +14,7 @@ data class ProUpgradeState(
     val creditProducts: List<ProductDetailsEntity> = emptyList(),
     val hasValidPurchase: Boolean = false,
     val activePurchases: List<PurchaseEntity> = emptyList(),
+    val hasAccountConflict: Boolean = false,
     val billingClientReady: Boolean = false,
     val error: String? = null,
     val isVerifying: Boolean = false
@@ -35,7 +36,11 @@ class BillingClientWrapper(
         // No-op
     }
 
-    fun launchPurchaseFlow(activity: Activity, productId: String = PRO_LIFETIME_PRODUCT_ID) {
+    fun launchPurchaseFlow(
+        activity: Activity,
+        productId: String = PRO_LIFETIME_PRODUCT_ID,
+        obfuscatedAccountId: String? = null
+    ) {
         _proUpgradeState.value = _proUpgradeState.value.copy(error = "Not available in Open Source version")
     }
     fun consumePurchase(purchaseToken: String) {}
@@ -44,6 +49,14 @@ class BillingClientWrapper(
         _proUpgradeState.value = _proUpgradeState.value.copy(error = null)
     }
 
+    fun markAccountConflict() {
+        _proUpgradeState.value = _proUpgradeState.value.copy(hasAccountConflict = true, isVerifying = false)
+    }
+
+    fun clearAccountConflict() {
+        _proUpgradeState.value = _proUpgradeState.value.copy(hasAccountConflict = false)
+    }
+
     fun clearVerificationState() {
         _proUpgradeState.value = _proUpgradeState.value.copy(isVerifying = false)
     }
@@ -51,4 +64,4 @@ class BillingClientWrapper(
     companion object {
         const val PRO_LIFETIME_PRODUCT_ID = "episteme_pro_lifetime"
     }
-}
+}

app/src/oss/java/com/aryan/reader/data/FirestoreRepository.kt

@@ -23,8 +23,17 @@ data class BookMetadata(
     val lastModifiedTimestamp: Long = 0L,
     val bookmarksJson: String? = null,
     val hasAnnotations: Boolean = false,
+    val fileContentModifiedTimestamp: Long = 0L,
     val customName: String? = null,
-    val highlightsJson: String? = null
+    val highlightsJson: String? = null,
+    val seriesName: String? = null,
+    val seriesIndex: Double? = null,
+    val description: String? = null,
+    val originalTitle: String? = null,
+    val originalAuthor: String? = null,
+    val originalSeriesName: String? = null,
+    val originalSeriesIndex: Double? = null,
+    val originalDescription: String? = null
 )
 
 data class DeviceItem(
@@ -135,4 +144,4 @@ class FirestoreRepository {
 
     suspend fun addMessageToThread(threadId: String, messageId: String, uid: String, text: String, sender: String, attachments: List<String>) {}
     suspend fun markThreadAsRead(threadId: String) {}
-}
+}

app/src/oss/res/values/strings.xml

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="app_name" translatable="false">Episteme (OSS)</string>
-</resources>
+    <string name="app_name">Episteme oss</string>
+</resources>