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Refactor

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This commit is contained in:
Reece Browne 2025-08-24 14:11:29 +01:00
parent 62f92da0fe
commit 7cf0806749
6 changed files with 761 additions and 645 deletions
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6
.claude/settings.local.json
View File

@ -13,9 +13,11 @@
"Bash(npx tsc:*)", "Bash(npx tsc:*)",
"Bash(node:*)", "Bash(node:*)",
"Bash(npm run dev:*)", "Bash(npm run dev:*)",
"Bash(sed:*)" "Bash(sed:*)",
"Bash(cp:*)",
"Bash(rm:*)"
], ],
"deny": [], "deny": [],
"defaultMode": "acceptEdits" "defaultMode": "acceptEdits"
} }
} }

662
frontend/src/components/pageEditor/PageEditor.tsx
View File

@ -9,426 +9,28 @@ import { useFileState, useFileActions, useCurrentFile, useFileSelection } from "
import { ModeType } from "../../contexts/NavigationContext"; import { ModeType } from "../../contexts/NavigationContext";
import { PDFDocument, PDFPage } from "../../types/pageEditor"; import { PDFDocument, PDFPage } from "../../types/pageEditor";
import { ProcessedFile as EnhancedProcessedFile } from "../../types/processing"; import { ProcessedFile as EnhancedProcessedFile } from "../../types/processing";
import { useUndoRedo } from "../../hooks/useUndoRedo";
import { pdfExportService } from "../../services/pdfExportService"; import { pdfExportService } from "../../services/pdfExportService";
import { documentManipulationService } from "../../services/documentManipulationService"; import { documentManipulationService } from "../../services/documentManipulationService";
import { enhancedPDFProcessingService } from "../../services/enhancedPDFProcessingService";
import { fileProcessingService } from "../../services/fileProcessingService";
import { pdfProcessingService } from "../../services/pdfProcessingService";
import { pdfWorkerManager } from "../../services/pdfWorkerManager";
// Thumbnail generation is now handled by individual PageThumbnail components // Thumbnail generation is now handled by individual PageThumbnail components
import { fileStorage } from "../../services/fileStorage";
import { indexedDBManager, DATABASE_CONFIGS } from "../../services/indexedDBManager";
import './PageEditor.module.css'; import './PageEditor.module.css';
import PageThumbnail from './PageThumbnail'; import PageThumbnail from './PageThumbnail';
import DragDropGrid from './DragDropGrid'; import DragDropGrid from './DragDropGrid';
import SkeletonLoader from '../shared/SkeletonLoader'; import SkeletonLoader from '../shared/SkeletonLoader';
import NavigationWarningModal from '../shared/NavigationWarningModal'; import NavigationWarningModal from '../shared/NavigationWarningModal';
// V1-style DOM-first command system (replaces the old React state commands) import {
abstract class DOMCommand { DOMCommand,
abstract execute(): void; RotatePageCommand,
abstract undo(): void; DeletePagesCommand,
abstract description: string; ReorderPagesCommand,
} SplitCommand,
BulkRotateCommand,
class RotatePageCommand extends DOMCommand { BulkSplitCommand,
constructor( SplitAllCommand,
private pageId: string, UndoManager
private degrees: number } from './commands/pageCommands';
) { import { usePageDocument } from './hooks/usePageDocument';
super(); import { usePageEditorState } from './hooks/usePageEditorState';
}
execute(): void {
// Only update DOM for immediate visual feedback
const pageElement = document.querySelector(`[data-page-id="${this.pageId}"]`);
if (pageElement) {
const img = pageElement.querySelector('img');
if (img) {
// Extract current rotation from transform property to match the animated CSS
const currentTransform = img.style.transform || '';
const rotateMatch = currentTransform.match(/rotate\(([^)]+)\)/);
const currentRotation = rotateMatch ? parseInt(rotateMatch[1]) : 0;
const newRotation = currentRotation + this.degrees;
img.style.transform = `rotate(${newRotation}deg)`;
}
}
}
undo(): void {
// Only update DOM
const pageElement = document.querySelector(`[data-page-id="${this.pageId}"]`);
if (pageElement) {
const img = pageElement.querySelector('img');
if (img) {
// Extract current rotation from transform property
const currentTransform = img.style.transform || '';
const rotateMatch = currentTransform.match(/rotate\(([^)]+)\)/);
const currentRotation = rotateMatch ? parseInt(rotateMatch[1]) : 0;
const previousRotation = currentRotation - this.degrees;
img.style.transform = `rotate(${previousRotation}deg)`;
}
}
}
get description(): string {
return `Rotate page ${this.degrees > 0 ? 'right' : 'left'}`;
}
}
class DeletePagesCommand extends DOMCommand {
private originalDocument: PDFDocument | null = null;
private originalSplitPositions: Set<number> = new Set();
private originalSelectedPages: number[] = [];
private hasExecuted: boolean = false;
private pageIdsToDelete: string[] = [];
constructor(
private pagesToDelete: number[],
private getCurrentDocument: () => PDFDocument | null,
private setDocument: (doc: PDFDocument) => void,
private setSelectedPages: (pages: number[]) => void,
private getSplitPositions: () => Set<number>,
private setSplitPositions: (positions: Set<number>) => void,
private getSelectedPages: () => number[]
) {
super();
}
execute(): void {
const currentDoc = this.getCurrentDocument();
if (!currentDoc || this.pagesToDelete.length === 0) return;
// Store complete original state for undo (only on first execution)
if (!this.hasExecuted) {
this.originalDocument = {
...currentDoc,
pages: currentDoc.pages.map(page => ({...page})) // Deep copy pages
};
this.originalSplitPositions = new Set(this.getSplitPositions());
this.originalSelectedPages = [...this.getSelectedPages()];
// Convert page numbers to page IDs for stable identification
this.pageIdsToDelete = this.pagesToDelete.map(pageNum => {
const page = currentDoc.pages.find(p => p.pageNumber === pageNum);
return page?.id || '';
}).filter(id => id);
this.hasExecuted = true;
}
// Filter out deleted pages by ID (stable across undo/redo)
const remainingPages = currentDoc.pages.filter(page =>
!this.pageIdsToDelete.includes(page.id)
);
if (remainingPages.length === 0) return; // Safety check
// Renumber remaining pages
remainingPages.forEach((page, index) => {
page.pageNumber = index + 1;
});
// Update document
const updatedDocument: PDFDocument = {
...currentDoc,
pages: remainingPages,
totalPages: remainingPages.length,
};
// Adjust split positions
const currentSplitPositions = this.getSplitPositions();
const newPositions = new Set<number>();
currentSplitPositions.forEach(pos => {
if (pos < remainingPages.length - 1) {
newPositions.add(pos);
}
});
// Apply changes
this.setDocument(updatedDocument);
this.setSelectedPages([]);
this.setSplitPositions(newPositions);
}
undo(): void {
if (!this.originalDocument) return;
// Simply restore the complete original document state
this.setDocument(this.originalDocument);
this.setSplitPositions(this.originalSplitPositions);
this.setSelectedPages(this.originalSelectedPages);
}
get description(): string {
return `Delete ${this.pagesToDelete.length} page(s)`;
}
}
class ReorderPagesCommand extends DOMCommand {
private originalPages: PDFPage[] = [];
constructor(
private sourcePageNumber: number,
private targetIndex: number,
private selectedPages: number[] | undefined,
private getCurrentDocument: () => PDFDocument | null,
private setDocument: (doc: PDFDocument) => void
) {
super();
}
execute(): void {
const currentDoc = this.getCurrentDocument();
if (!currentDoc) return;
// Store original state for undo
this.originalPages = currentDoc.pages.map(page => ({...page}));
// Perform the reorder
const sourceIndex = currentDoc.pages.findIndex(p => p.pageNumber === this.sourcePageNumber);
if (sourceIndex === -1) return;
const newPages = [...currentDoc.pages];
if (this.selectedPages && this.selectedPages.length > 1 && this.selectedPages.includes(this.sourcePageNumber)) {
// Multi-page reorder
const selectedPageObjects = this.selectedPages
.map(pageNum => currentDoc.pages.find(p => p.pageNumber === pageNum))
.filter(page => page !== undefined) as PDFPage[];
const remainingPages = newPages.filter(page => !this.selectedPages!.includes(page.pageNumber));
remainingPages.splice(this.targetIndex, 0, ...selectedPageObjects);
remainingPages.forEach((page, index) => {
page.pageNumber = index + 1;
});
newPages.splice(0, newPages.length, ...remainingPages);
} else {
// Single page reorder
const [movedPage] = newPages.splice(sourceIndex, 1);
newPages.splice(this.targetIndex, 0, movedPage);
newPages.forEach((page, index) => {
page.pageNumber = index + 1;
});
}
const reorderedDocument: PDFDocument = {
...currentDoc,
pages: newPages,
totalPages: newPages.length,
};
this.setDocument(reorderedDocument);
}
undo(): void {
const currentDoc = this.getCurrentDocument();
if (!currentDoc || this.originalPages.length === 0) return;
// Restore original page order
const restoredDocument: PDFDocument = {
...currentDoc,
pages: this.originalPages,
totalPages: this.originalPages.length,
};
this.setDocument(restoredDocument);
}
get description(): string {
return `Reorder page(s)`;
}
}
class SplitCommand extends DOMCommand {
private originalSplitPositions: Set<number> = new Set();
constructor(
private position: number,
private getSplitPositions: () => Set<number>,
private setSplitPositions: (positions: Set<number>) => void
) {
super();
}
execute(): void {
// Store original state for undo
this.originalSplitPositions = new Set(this.getSplitPositions());
// Toggle the split position
const currentPositions = this.getSplitPositions();
const newPositions = new Set(currentPositions);
if (newPositions.has(this.position)) {
newPositions.delete(this.position);
} else {
newPositions.add(this.position);
}
this.setSplitPositions(newPositions);
}
undo(): void {
// Restore original split positions
this.setSplitPositions(this.originalSplitPositions);
}
get description(): string {
const currentPositions = this.getSplitPositions();
const willAdd = !currentPositions.has(this.position);
return `${willAdd ? 'Add' : 'Remove'} split at position ${this.position + 1}`;
}
}
class BulkRotateCommand extends DOMCommand {
private originalRotations: Map<string, number> = new Map();
constructor(
private pageIds: string[],
private degrees: number
) {
super();
}
execute(): void {
this.pageIds.forEach(pageId => {
const pageElement = document.querySelector(`[data-page-id="${pageId}"]`);
if (pageElement) {
const img = pageElement.querySelector('img');
if (img) {
// Store original rotation for undo (only on first execution)
if (!this.originalRotations.has(pageId)) {
const currentTransform = img.style.transform || '';
const rotateMatch = currentTransform.match(/rotate\(([^)]+)\)/);
const currentRotation = rotateMatch ? parseInt(rotateMatch[1]) : 0;
this.originalRotations.set(pageId, currentRotation);
}
// Apply rotation using transform to trigger CSS animation
const currentTransform = img.style.transform || '';
const rotateMatch = currentTransform.match(/rotate\(([^)]+)\)/);
const currentRotation = rotateMatch ? parseInt(rotateMatch[1]) : 0;
const newRotation = currentRotation + this.degrees;
img.style.transform = `rotate(${newRotation}deg)`;
}
}
});
}
undo(): void {
this.pageIds.forEach(pageId => {
const pageElement = document.querySelector(`[data-page-id="${pageId}"]`);
if (pageElement) {
const img = pageElement.querySelector('img');
if (img && this.originalRotations.has(pageId)) {
img.style.transform = `rotate(${this.originalRotations.get(pageId)}deg)`;
}
}
});
}
get description(): string {
return `Rotate ${this.pageIds.length} page(s) ${this.degrees > 0 ? 'right' : 'left'}`;
}
}
class BulkSplitCommand extends DOMCommand {
private originalSplitPositions: Set<number> = new Set();
constructor(
private positions: number[],
private getSplitPositions: () => Set<number>,
private setSplitPositions: (positions: Set<number>) => void
) {
super();
}
execute(): void {
// Store original state for undo (only on first execution)
if (this.originalSplitPositions.size === 0) {
this.originalSplitPositions = new Set(this.getSplitPositions());
}
// Toggle each position
const currentPositions = new Set(this.getSplitPositions());
this.positions.forEach(position => {
if (currentPositions.has(position)) {
currentPositions.delete(position);
} else {
currentPositions.add(position);
}
});
this.setSplitPositions(currentPositions);
}
undo(): void {
// Restore original split positions
this.setSplitPositions(this.originalSplitPositions);
}
get description(): string {
return `Toggle ${this.positions.length} split position(s)`;
}
}
// Simple undo manager for DOM commands
class UndoManager {
private undoStack: DOMCommand[] = [];
private redoStack: DOMCommand[] = [];
private onStateChange?: () => void;
setStateChangeCallback(callback: () => void): void {
this.onStateChange = callback;
}
executeCommand(command: DOMCommand): void {
command.execute();
this.undoStack.push(command);
this.redoStack = [];
this.onStateChange?.();
}
undo(): boolean {
const command = this.undoStack.pop();
if (command) {
command.undo();
this.redoStack.push(command);
this.onStateChange?.();
return true;
}
return false;
}
redo(): boolean {
const command = this.redoStack.pop();
if (command) {
command.execute();
this.undoStack.push(command);
this.onStateChange?.();
return true;
}
return false;
}
canUndo(): boolean {
return this.undoStack.length > 0;
}
canRedo(): boolean {
return this.redoStack.length > 0;
}
clear(): void {
this.undoStack = [];
this.redoStack = [];
this.onStateChange?.();
}
}
export interface PageEditorProps { export interface PageEditorProps {
onFunctionsReady?: (functions: { onFunctionsReady?: (functions: {
@ -485,127 +87,20 @@ const PageEditor = ({
// DOM-first undo manager (replaces the old React state undo system) // DOM-first undo manager (replaces the old React state undo system)
const undoManagerRef = useRef(new UndoManager()); const undoManagerRef = useRef(new UndoManager());
// Thumbnail generation is now handled on-demand by individual PageThumbnail components using modern services // Document state management
const { document: mergedPdfDocument, isVeryLargeDocument, isLoading: documentLoading } = usePageDocument();
// Get primary file record outside useMemo to track processedFile changes // UI state management
const primaryFileRecord = primaryFileId ? selectors.getFileRecord(primaryFileId) : null; const {
const processedFilePages = primaryFileRecord?.processedFile?.pages; selectionMode, selectedPageNumbers, movingPage, isAnimating, splitPositions, exportLoading,
const processedFileTotalPages = primaryFileRecord?.processedFile?.totalPages; setSelectionMode, setSelectedPageNumbers, setMovingPage, setIsAnimating, setSplitPositions, setExportLoading,
togglePage, toggleSelectAll, animateReorder
// Compute merged document with stable signature (prevents infinite loops) } = usePageEditorState();
const mergedPdfDocument = useMemo((): PDFDocument | null => {
if (activeFileIds.length === 0) return null;
const primaryFile = primaryFileId ? selectors.getFile(primaryFileId) : null;
// If we have file IDs but no file record, something is wrong - return null to show loading
if (!primaryFileRecord) {
console.log('🎬 PageEditor: No primary file record found, showing loading');
return null;
}
const name =
activeFileIds.length === 1
? (primaryFileRecord.name ?? 'document.pdf')
: activeFileIds
.map(id => (selectors.getFileRecord(id)?.name ?? 'file').replace(/\.pdf$/i, ''))
.join(' + ');
// Debug logging for merged document creation
console.log(`🎬 PageEditor: Building merged document for ${name} with ${activeFileIds.length} files`);
// Collect pages from ALL active files, not just the primary file
let pages: PDFPage[] = [];
let totalPageCount = 0;
activeFileIds.forEach((fileId, fileIndex) => {
const fileRecord = selectors.getFileRecord(fileId);
if (!fileRecord) {
console.warn(`🎬 PageEditor: No record found for file ${fileId}`);
return;
}
const processedFile = fileRecord.processedFile;
console.log(`🎬 PageEditor: Processing file ${fileIndex + 1}/${activeFileIds.length} (${fileRecord.name})`);
console.log(`🎬 ProcessedFile exists:`, !!processedFile);
console.log(`🎬 ProcessedFile pages:`, processedFile?.pages?.length || 0);
console.log(`🎬 ProcessedFile totalPages:`, processedFile?.totalPages || 'unknown');
let filePages: PDFPage[] = [];
if (processedFile?.pages && processedFile.pages.length > 0) {
// Use fully processed pages with thumbnails
filePages = processedFile.pages.map((page, pageIndex) => ({
id: `${fileId}-${page.pageNumber}`,
pageNumber: totalPageCount + pageIndex + 1,
thumbnail: page.thumbnail || null,
rotation: page.rotation || 0,
selected: false,
splitAfter: page.splitAfter || false,
originalPageNumber: page.originalPageNumber || page.pageNumber || pageIndex + 1,
originalFileId: fileId,
}));
} else if (processedFile?.totalPages) {
// Fallback: create pages without thumbnails but with correct count
console.log(`🎬 PageEditor: Creating placeholder pages for ${fileRecord.name} (${processedFile.totalPages} pages)`);
filePages = Array.from({ length: processedFile.totalPages }, (_, pageIndex) => ({
id: `${fileId}-${pageIndex + 1}`,
pageNumber: totalPageCount + pageIndex + 1,
originalPageNumber: pageIndex + 1,
originalFileId: fileId,
rotation: 0,
thumbnail: null, // Will be generated later
selected: false,
splitAfter: false,
}));
}
pages = pages.concat(filePages);
totalPageCount += filePages.length;
});
if (pages.length === 0) {
console.warn('🎬 PageEditor: No pages found in any files');
return null;
}
console.log(`🎬 PageEditor: Created merged document with ${pages.length} total pages`);
const mergedDoc: PDFDocument = {
id: activeFileIds.join('-'),
name,
file: primaryFile!,
pages,
totalPages: pages.length,
};
return mergedDoc;
}, [activeFileIds, primaryFileId, primaryFileRecord, processedFilePages, processedFileTotalPages, selectors, filesSignature]);
// Large document detection for smart loading
const isVeryLargeDocument = useMemo(() => {
return mergedPdfDocument ? mergedPdfDocument.totalPages > 2000 : false;
}, [mergedPdfDocument?.totalPages]);
// Thumbnails are now generated on-demand by PageThumbnail components
// No bulk generation needed - modern thumbnail service handles this efficiently
// Selection and UI state management
const [selectionMode, setSelectionMode] = useState(false);
const [selectedPageNumbers, setSelectedPageNumbers] = useState<number[]>([]);
const [movingPage, setMovingPage] = useState<number | null>(null);
const [isAnimating, setIsAnimating] = useState(false);
// Position-based split tracking (replaces page-based splitAfter)
const [splitPositions, setSplitPositions] = useState<Set<number>>(new Set());
// Grid container ref for positioning split indicators // Grid container ref for positioning split indicators
const gridContainerRef = useRef<HTMLDivElement>(null); const gridContainerRef = useRef<HTMLDivElement>(null);
// Export state
const [exportLoading, setExportLoading] = useState(false);
// Undo/Redo state // Undo/Redo state
const [canUndo, setCanUndo] = useState(false); const [canUndo, setCanUndo] = useState(false);
const [canRedo, setCanRedo] = useState(false); const [canRedo, setCanRedo] = useState(false);
@ -624,53 +119,28 @@ const PageEditor = ({
}, [updateUndoRedoState]); }, [updateUndoRedoState]);
// Interface functions for parent component
const displayDocument = editedDocument || mergedPdfDocument;
// DOM-first command handlers // DOM-first command handlers
const handleRotatePages = useCallback((pageIds: string[], rotation: number) => { const handleRotatePages = useCallback((pageIds: string[], rotation: number) => {
const bulkRotateCommand = new BulkRotateCommand(pageIds, rotation); const bulkRotateCommand = new BulkRotateCommand(pageIds, rotation);
undoManagerRef.current.executeCommand(bulkRotateCommand); undoManagerRef.current.executeCommand(bulkRotateCommand);
}, []); }, []);
// Page selection handlers // Command factory functions for PageThumbnail
const togglePage = useCallback((pageNumber: number) => { const createRotateCommand = useCallback((pageIds: string[], rotation: number) => ({
setSelectedPageNumbers(prev => execute: () => {
prev.includes(pageNumber) const bulkRotateCommand = new BulkRotateCommand(pageIds, rotation);
? prev.filter(n => n !== pageNumber)
: [...prev, pageNumber]
);
}, []);
const toggleSelectAll = useCallback(() => {
if (!mergedPdfDocument) return;
const allPageNumbers = mergedPdfDocument.pages.map(p => p.pageNumber);
setSelectedPageNumbers(prev =>
prev.length === allPageNumbers.length ? [] : allPageNumbers
);
}, [mergedPdfDocument]);
// Animation helpers
const animateReorder = useCallback(() => {
setIsAnimating(true);
setTimeout(() => setIsAnimating(false), 500);
}, []);
// Placeholder command classes for PageThumbnail compatibility
class RotatePagesCommand {
constructor(public pageIds: string[], public rotation: number) {}
execute() {
const bulkRotateCommand = new BulkRotateCommand(this.pageIds, this.rotation);
undoManagerRef.current.executeCommand(bulkRotateCommand); undoManagerRef.current.executeCommand(bulkRotateCommand);
} }
} }), []);
class DeletePagesWrapper { const createDeleteCommand = useCallback((pageIds: string[]) => ({
constructor(public pageIds: string[]) {} execute: () => {
execute() {
// Convert page IDs to page numbers for the real delete command
if (!displayDocument) return; if (!displayDocument) return;
const pagesToDelete = this.pageIds.map(pageId => { const pagesToDelete = pageIds.map(pageId => {
const page = displayDocument.pages.find(p => p.id === pageId); const page = displayDocument.pages.find(p => p.id === pageId);
return page?.pageNumber || 0; return page?.pageNumber || 0;
}).filter(num => num > 0); }).filter(num => num > 0);
@ -688,19 +158,18 @@ const PageEditor = ({
undoManagerRef.current.executeCommand(deleteCommand); undoManagerRef.current.executeCommand(deleteCommand);
} }
} }
} }), [displayDocument, splitPositions, selectedPageNumbers]);
class ToggleSplitCommand { const createSplitCommand = useCallback((position: number) => ({
constructor(public position: number) {} execute: () => {
execute() {
const splitCommand = new SplitCommand( const splitCommand = new SplitCommand(
this.position, position,
() => splitPositions, () => splitPositions,
setSplitPositions setSplitPositions
); );
undoManagerRef.current.executeCommand(splitCommand); undoManagerRef.current.executeCommand(splitCommand);
} }
} }), [splitPositions]);
// Command executor for PageThumbnail // Command executor for PageThumbnail
const executeCommand = useCallback((command: any) => { const executeCommand = useCallback((command: any) => {
@ -708,9 +177,6 @@ const PageEditor = ({
command.execute(); command.execute();
} }
}, []); }, []);
// Interface functions for parent component
const displayDocument = editedDocument || mergedPdfDocument;
const handleUndo = useCallback(() => { const handleUndo = useCallback(() => {
@ -792,47 +258,11 @@ const PageEditor = ({
const handleSplitAll = useCallback(() => { const handleSplitAll = useCallback(() => {
if (!displayDocument) return; if (!displayDocument) return;
// Create a command that toggles all splits const splitAllCommand = new SplitAllCommand(
class SplitAllCommand extends DOMCommand { displayDocument.pages.length,
private originalSplitPositions: Set<number> = new Set(); () => splitPositions,
private allPossibleSplits: Set<number> = new Set(); setSplitPositions
);
constructor() {
super();
// Calculate all possible split positions
for (let i = 0; i < displayDocument!.pages.length - 1; i++) {
this.allPossibleSplits.add(i);
}
}
execute(): void {
// Store original state for undo
this.originalSplitPositions = new Set(splitPositions);
// Check if all splits are already active
const hasAllSplits = Array.from(this.allPossibleSplits).every(pos => splitPositions.has(pos));
if (hasAllSplits) {
// Remove all splits
setSplitPositions(new Set());
} else {
// Add all splits
setSplitPositions(this.allPossibleSplits);
}
}
undo(): void {
// Restore original split positions
setSplitPositions(this.originalSplitPositions);
}
get description(): string {
const hasAllSplits = Array.from(this.allPossibleSplits).every(pos => splitPositions.has(pos));
return hasAllSplits ? 'Remove all splits' : 'Split all pages';
}
}
const splitAllCommand = new SplitAllCommand();
undoManagerRef.current.executeCommand(splitAllCommand); undoManagerRef.current.executeCommand(splitAllCommand);
}, [displayDocument, splitPositions]); }, [displayDocument, splitPositions]);
@ -1059,7 +489,7 @@ const PageEditor = ({
</Button> </Button>
{selectionMode && ( {selectionMode && (
<> <>
<Button variant="outline" onClick={toggleSelectAll}> <Button variant="outline" onClick={() => toggleSelectAll(displayDocument?.pages.length || 0)}>
{selectedPageNumbers.length === displayDocument.pages.length ? "Deselect All" : "Select All"} {selectedPageNumbers.length === displayDocument.pages.length ? "Deselect All" : "Select All"}
</Button> </Button>
<Text size="sm" c="dimmed"> <Text size="sm" c="dimmed">
@ -1139,9 +569,9 @@ const PageEditor = ({
onSetStatus={() => {}} onSetStatus={() => {}}
onSetMovingPage={setMovingPage} onSetMovingPage={setMovingPage}
onDeletePage={handleDeletePage} onDeletePage={handleDeletePage}
RotatePagesCommand={RotatePagesCommand} createRotateCommand={createRotateCommand}
DeletePagesCommand={DeletePagesWrapper} createDeleteCommand={createDeleteCommand}
ToggleSplitCommand={ToggleSplitCommand} createSplitCommand={createSplitCommand}
pdfDocument={displayDocument} pdfDocument={displayDocument}
setPdfDocument={setEditedDocument} setPdfDocument={setEditedDocument}
splitPositions={splitPositions} splitPositions={splitPositions}

55
frontend/src/components/pageEditor/PageThumbnail.tsx
View File

@ -11,12 +11,6 @@ import { PDFPage, PDFDocument } from '../../types/pageEditor';
import { useThumbnailGeneration } from '../../hooks/useThumbnailGeneration'; import { useThumbnailGeneration } from '../../hooks/useThumbnailGeneration';
import styles from './PageEditor.module.css'; import styles from './PageEditor.module.css';
// DOM Command types (match what PageEditor expects)
abstract class DOMCommand {
abstract execute(): void;
abstract undo(): void;
abstract description: string;
}
interface PageThumbnailProps { interface PageThumbnailProps {
page: PDFPage; page: PDFPage;
@ -31,13 +25,13 @@ interface PageThumbnailProps {
onReorderPages: (sourcePageNumber: number, targetIndex: number, selectedPages?: number[]) => void; onReorderPages: (sourcePageNumber: number, targetIndex: number, selectedPages?: number[]) => void;
onTogglePage: (pageNumber: number) => void; onTogglePage: (pageNumber: number) => void;
onAnimateReorder: () => void; onAnimateReorder: () => void;
onExecuteCommand: (command: DOMCommand) => void; onExecuteCommand: (command: { execute: () => void }) => void;
onSetStatus: (status: string) => void; onSetStatus: (status: string) => void;
onSetMovingPage: (page: number | null) => void; onSetMovingPage: (page: number | null) => void;
onDeletePage: (pageNumber: number) => void; onDeletePage: (pageNumber: number) => void;
RotatePagesCommand: any; createRotateCommand: (pageIds: string[], rotation: number) => { execute: () => void };
DeletePagesCommand: any; createDeleteCommand: (pageIds: string[]) => { execute: () => void };
ToggleSplitCommand: any; createSplitCommand: (position: number) => { execute: () => void };
pdfDocument: PDFDocument; pdfDocument: PDFDocument;
setPdfDocument: (doc: PDFDocument) => void; setPdfDocument: (doc: PDFDocument) => void;
splitPositions: Set<number>; splitPositions: Set<number>;
@ -60,18 +54,18 @@ const PageThumbnail: React.FC<PageThumbnailProps> = ({
onSetStatus, onSetStatus,
onSetMovingPage, onSetMovingPage,
onDeletePage, onDeletePage,
RotatePagesCommand, createRotateCommand,
DeletePagesCommand, createDeleteCommand,
ToggleSplitCommand, createSplitCommand,
pdfDocument, pdfDocument,
setPdfDocument, setPdfDocument,
splitPositions, splitPositions,
}: PageThumbnailProps) => { }: PageThumbnailProps) => {
const [thumbnailUrl, setThumbnailUrl] = useState<string | null>(page.thumbnail);
const [isDragging, setIsDragging] = useState(false); const [isDragging, setIsDragging] = useState(false);
const [isMouseDown, setIsMouseDown] = useState(false); const [isMouseDown, setIsMouseDown] = useState(false);
const [mouseStartPos, setMouseStartPos] = useState<{x: number, y: number} | null>(null); const [mouseStartPos, setMouseStartPos] = useState<{x: number, y: number} | null>(null);
const dragElementRef = useRef<HTMLDivElement>(null); const dragElementRef = useRef<HTMLDivElement>(null);
const [thumbnailUrl, setThumbnailUrl] = useState<string | null>(page.thumbnail);
const { getThumbnailFromCache, requestThumbnail } = useThumbnailGeneration(); const { getThumbnailFromCache, requestThumbnail } = useThumbnailGeneration();
// Update thumbnail URL when page prop changes // Update thumbnail URL when page prop changes
@ -79,9 +73,9 @@ const PageThumbnail: React.FC<PageThumbnailProps> = ({
if (page.thumbnail && page.thumbnail !== thumbnailUrl) { if (page.thumbnail && page.thumbnail !== thumbnailUrl) {
setThumbnailUrl(page.thumbnail); setThumbnailUrl(page.thumbnail);
} }
}, [page.thumbnail, page.id]); }, [page.thumbnail, thumbnailUrl]);
// Request thumbnail on-demand using modern service // Request thumbnail if missing (on-demand, virtualized approach)
useEffect(() => { useEffect(() => {
let isCancelled = false; let isCancelled = false;
@ -100,8 +94,7 @@ const PageThumbnail: React.FC<PageThumbnailProps> = ({
// Request thumbnail generation if we have the original file // Request thumbnail generation if we have the original file
if (originalFile) { if (originalFile) {
// Extract page number from page.id (format: fileId-pageNumber) const pageNumber = page.originalPageNumber;
const pageNumber = parseInt(page.id.split('-').pop() || '1');
requestThumbnail(page.id, originalFile, pageNumber) requestThumbnail(page.id, originalFile, pageNumber)
.then(thumbnail => { .then(thumbnail => {
@ -153,6 +146,8 @@ const PageThumbnail: React.FC<PageThumbnailProps> = ({
const pagesToMove = selectionMode && selectedPages.includes(page.pageNumber) const pagesToMove = selectionMode && selectedPages.includes(page.pageNumber)
? selectedPages ? selectedPages
: undefined; : undefined;
// Trigger animation for drag & drop
onAnimateReorder();
onReorderPages(page.pageNumber, targetIndex, pagesToMove); onReorderPages(page.pageNumber, targetIndex, pagesToMove);
} }
} }
@ -186,18 +181,18 @@ const PageThumbnail: React.FC<PageThumbnailProps> = ({
const handleRotateLeft = useCallback((e: React.MouseEvent) => { const handleRotateLeft = useCallback((e: React.MouseEvent) => {
e.stopPropagation(); e.stopPropagation();
// Use the command system for undo/redo support // Use the command system for undo/redo support
const command = new RotatePagesCommand([page.id], -90); const command = createRotateCommand([page.id], -90);
onExecuteCommand(command); onExecuteCommand(command);
onSetStatus(`Rotated page ${page.pageNumber} left`); onSetStatus(`Rotated page ${page.pageNumber} left`);
}, [page.id, page.pageNumber, onExecuteCommand, onSetStatus, RotatePagesCommand]); }, [page.id, page.pageNumber, onExecuteCommand, onSetStatus, createRotateCommand]);
const handleRotateRight = useCallback((e: React.MouseEvent) => { const handleRotateRight = useCallback((e: React.MouseEvent) => {
e.stopPropagation(); e.stopPropagation();
// Use the command system for undo/redo support // Use the command system for undo/redo support
const command = new RotatePagesCommand([page.id], 90); const command = createRotateCommand([page.id], 90);
onExecuteCommand(command); onExecuteCommand(command);
onSetStatus(`Rotated page ${page.pageNumber} right`); onSetStatus(`Rotated page ${page.pageNumber} right`);
}, [page.id, page.pageNumber, onExecuteCommand, onSetStatus, RotatePagesCommand]); }, [page.id, page.pageNumber, onExecuteCommand, onSetStatus, createRotateCommand]);
const handleDelete = useCallback((e: React.MouseEvent) => { const handleDelete = useCallback((e: React.MouseEvent) => {
e.stopPropagation(); e.stopPropagation();
@ -209,13 +204,13 @@ const PageThumbnail: React.FC<PageThumbnailProps> = ({
e.stopPropagation(); e.stopPropagation();
// Create a command to toggle split at this position // Create a command to toggle split at this position
const command = new ToggleSplitCommand(index); const command = createSplitCommand(index);
onExecuteCommand(command); onExecuteCommand(command);
const hasSplit = splitPositions.has(index); const hasSplit = splitPositions.has(index);
const action = hasSplit ? 'removed' : 'added'; const action = hasSplit ? 'removed' : 'added';
onSetStatus(`Split marker ${action} after position ${index + 1}`); onSetStatus(`Split marker ${action} after position ${index + 1}`);
}, [index, splitPositions, onExecuteCommand, onSetStatus, ToggleSplitCommand]); }, [index, splitPositions, onExecuteCommand, onSetStatus, createSplitCommand]);
// Handle click vs drag differentiation // Handle click vs drag differentiation
const handleMouseDown = useCallback((e: React.MouseEvent) => { const handleMouseDown = useCallback((e: React.MouseEvent) => {
@ -254,8 +249,8 @@ const PageThumbnail: React.FC<PageThumbnailProps> = ({
return ( return (
<div <div
ref={pageElementRef} ref={pageElementRef}
data-page-number={page.pageNumber}
data-page-id={page.id} data-page-id={page.id}
data-page-number={page.pageNumber}
className={` className={`
${styles.pageContainer} ${styles.pageContainer}
!rounded-lg !rounded-lg
@ -402,8 +397,11 @@ const PageThumbnail: React.FC<PageThumbnailProps> = ({
e.stopPropagation(); e.stopPropagation();
if (index > 0 && !movingPage && !isAnimating) { if (index > 0 && !movingPage && !isAnimating) {
onSetMovingPage(page.pageNumber); onSetMovingPage(page.pageNumber);
// Trigger animation
onAnimateReorder(); onAnimateReorder();
setTimeout(() => onSetMovingPage(null), 500); // Actually move the page left (swap with previous page)
onReorderPages(page.pageNumber, index - 1);
setTimeout(() => onSetMovingPage(null), 650);
onSetStatus(`Moved page ${page.pageNumber} left`); onSetStatus(`Moved page ${page.pageNumber} left`);
} }
}} }}
@ -422,8 +420,11 @@ const PageThumbnail: React.FC<PageThumbnailProps> = ({
e.stopPropagation(); e.stopPropagation();
if (index < totalPages - 1 && !movingPage && !isAnimating) { if (index < totalPages - 1 && !movingPage && !isAnimating) {
onSetMovingPage(page.pageNumber); onSetMovingPage(page.pageNumber);
// Trigger animation
onAnimateReorder(); onAnimateReorder();
setTimeout(() => onSetMovingPage(null), 500); // Actually move the page right (swap with next page)
onReorderPages(page.pageNumber, index + 1);
setTimeout(() => onSetMovingPage(null), 650);
onSetStatus(`Moved page ${page.pageNumber} right`); onSetStatus(`Moved page ${page.pageNumber} right`);
} }
}} }}

451
frontend/src/components/pageEditor/commands/pageCommands.ts Normal file
View File

@ -0,0 +1,451 @@
import { PDFDocument, PDFPage } from '../../../types/pageEditor';
// V1-style DOM-first command system (replaces the old React state commands)
export abstract class DOMCommand {
abstract execute(): void;
abstract undo(): void;
abstract description: string;
}
export class RotatePageCommand extends DOMCommand {
constructor(
private pageId: string,
private degrees: number
) {
super();
}
execute(): void {
// Only update DOM for immediate visual feedback
const pageElement = document.querySelector(`[data-page-id="${this.pageId}"]`);
if (pageElement) {
const img = pageElement.querySelector('img');
if (img) {
// Extract current rotation from transform property to match the animated CSS
const currentTransform = img.style.transform || '';
const rotateMatch = currentTransform.match(/rotate\(([^)]+)\)/);
const currentRotation = rotateMatch ? parseInt(rotateMatch[1]) : 0;
const newRotation = currentRotation + this.degrees;
img.style.transform = `rotate(${newRotation}deg)`;
}
}
}
undo(): void {
// Only update DOM
const pageElement = document.querySelector(`[data-page-id="${this.pageId}"]`);
if (pageElement) {
const img = pageElement.querySelector('img');
if (img) {
// Extract current rotation from transform property
const currentTransform = img.style.transform || '';
const rotateMatch = currentTransform.match(/rotate\(([^)]+)\)/);
const currentRotation = rotateMatch ? parseInt(rotateMatch[1]) : 0;
const previousRotation = currentRotation - this.degrees;
img.style.transform = `rotate(${previousRotation}deg)`;
}
}
}
get description(): string {
return `Rotate page ${this.degrees > 0 ? 'right' : 'left'}`;
}
}
export class DeletePagesCommand extends DOMCommand {
private originalDocument: PDFDocument | null = null;
private originalSplitPositions: Set<number> = new Set();
private originalSelectedPages: number[] = [];
private hasExecuted: boolean = false;
private pageIdsToDelete: string[] = [];
constructor(
private pagesToDelete: number[],
private getCurrentDocument: () => PDFDocument | null,
private setDocument: (doc: PDFDocument) => void,
private setSelectedPages: (pages: number[]) => void,
private getSplitPositions: () => Set<number>,
private setSplitPositions: (positions: Set<number>) => void,
private getSelectedPages: () => number[]
) {
super();
}
execute(): void {
const currentDoc = this.getCurrentDocument();
if (!currentDoc || this.pagesToDelete.length === 0) return;
// Store complete original state for undo (only on first execution)
if (!this.hasExecuted) {
this.originalDocument = {
...currentDoc,
pages: currentDoc.pages.map(page => ({...page})) // Deep copy pages
};
this.originalSplitPositions = new Set(this.getSplitPositions());
this.originalSelectedPages = [...this.getSelectedPages()];
// Convert page numbers to page IDs for stable identification
this.pageIdsToDelete = this.pagesToDelete.map(pageNum => {
const page = currentDoc.pages.find(p => p.pageNumber === pageNum);
return page?.id || '';
}).filter(id => id);
this.hasExecuted = true;
}
// Filter out deleted pages by ID (stable across undo/redo)
const remainingPages = currentDoc.pages.filter(page =>
!this.pageIdsToDelete.includes(page.id)
);
if (remainingPages.length === 0) return; // Safety check
// Renumber remaining pages
remainingPages.forEach((page, index) => {
page.pageNumber = index + 1;
});
// Update document
const updatedDocument: PDFDocument = {
...currentDoc,
pages: remainingPages,
totalPages: remainingPages.length,
};
// Adjust split positions
const currentSplitPositions = this.getSplitPositions();
const newPositions = new Set<number>();
currentSplitPositions.forEach(pos => {
if (pos < remainingPages.length - 1) {
newPositions.add(pos);
}
});
// Apply changes
this.setDocument(updatedDocument);
this.setSelectedPages([]);
this.setSplitPositions(newPositions);
}
undo(): void {
if (!this.originalDocument) return;
// Simply restore the complete original document state
this.setDocument(this.originalDocument);
this.setSplitPositions(this.originalSplitPositions);
this.setSelectedPages(this.originalSelectedPages);
}
get description(): string {
return `Delete ${this.pagesToDelete.length} page(s)`;
}
}
export class ReorderPagesCommand extends DOMCommand {
private originalPages: PDFPage[] = [];
constructor(
private sourcePageNumber: number,
private targetIndex: number,
private selectedPages: number[] | undefined,
private getCurrentDocument: () => PDFDocument | null,
private setDocument: (doc: PDFDocument) => void
) {
super();
}
execute(): void {
const currentDoc = this.getCurrentDocument();
if (!currentDoc) return;
// Store original state for undo
this.originalPages = currentDoc.pages.map(page => ({...page}));
// Perform the reorder
const sourceIndex = currentDoc.pages.findIndex(p => p.pageNumber === this.sourcePageNumber);
if (sourceIndex === -1) return;
const newPages = [...currentDoc.pages];
if (this.selectedPages && this.selectedPages.length > 1 && this.selectedPages.includes(this.sourcePageNumber)) {
// Multi-page reorder
const selectedPageObjects = this.selectedPages
.map(pageNum => currentDoc.pages.find(p => p.pageNumber === pageNum))
.filter(page => page !== undefined) as PDFPage[];
const remainingPages = newPages.filter(page => !this.selectedPages!.includes(page.pageNumber));
remainingPages.splice(this.targetIndex, 0, ...selectedPageObjects);
remainingPages.forEach((page, index) => {
page.pageNumber = index + 1;
});
newPages.splice(0, newPages.length, ...remainingPages);
} else {
// Single page reorder
const [movedPage] = newPages.splice(sourceIndex, 1);
newPages.splice(this.targetIndex, 0, movedPage);
newPages.forEach((page, index) => {
page.pageNumber = index + 1;
});
}
const reorderedDocument: PDFDocument = {
...currentDoc,
pages: newPages,
totalPages: newPages.length,
};
this.setDocument(reorderedDocument);
}
undo(): void {
const currentDoc = this.getCurrentDocument();
if (!currentDoc || this.originalPages.length === 0) return;
// Restore original page order
const restoredDocument: PDFDocument = {
...currentDoc,
pages: this.originalPages,
totalPages: this.originalPages.length,
};
this.setDocument(restoredDocument);
}
get description(): string {
return `Reorder page(s)`;
}
}
export class SplitCommand extends DOMCommand {
private originalSplitPositions: Set<number> = new Set();
constructor(
private position: number,
private getSplitPositions: () => Set<number>,
private setSplitPositions: (positions: Set<number>) => void
) {
super();
}
execute(): void {
// Store original state for undo
this.originalSplitPositions = new Set(this.getSplitPositions());
// Toggle the split position
const currentPositions = this.getSplitPositions();
const newPositions = new Set(currentPositions);
if (newPositions.has(this.position)) {
newPositions.delete(this.position);
} else {
newPositions.add(this.position);
}
this.setSplitPositions(newPositions);
}
undo(): void {
// Restore original split positions
this.setSplitPositions(this.originalSplitPositions);
}
get description(): string {
const currentPositions = this.getSplitPositions();
const willAdd = !currentPositions.has(this.position);
return `${willAdd ? 'Add' : 'Remove'} split at position ${this.position + 1}`;
}
}
export class BulkRotateCommand extends DOMCommand {
private originalRotations: Map<string, number> = new Map();
constructor(
private pageIds: string[],
private degrees: number
) {
super();
}
execute(): void {
this.pageIds.forEach(pageId => {
const pageElement = document.querySelector(`[data-page-id="${pageId}"]`);
if (pageElement) {
const img = pageElement.querySelector('img');
if (img) {
// Store original rotation for undo (only on first execution)
if (!this.originalRotations.has(pageId)) {
const currentTransform = img.style.transform || '';
const rotateMatch = currentTransform.match(/rotate\(([^)]+)\)/);
const currentRotation = rotateMatch ? parseInt(rotateMatch[1]) : 0;
this.originalRotations.set(pageId, currentRotation);
}
// Apply rotation using transform to trigger CSS animation
const currentTransform = img.style.transform || '';
const rotateMatch = currentTransform.match(/rotate\(([^)]+)\)/);
const currentRotation = rotateMatch ? parseInt(rotateMatch[1]) : 0;
const newRotation = currentRotation + this.degrees;
img.style.transform = `rotate(${newRotation}deg)`;
}
}
});
}
undo(): void {
this.pageIds.forEach(pageId => {
const pageElement = document.querySelector(`[data-page-id="${pageId}"]`);
if (pageElement) {
const img = pageElement.querySelector('img');
if (img && this.originalRotations.has(pageId)) {
img.style.transform = `rotate(${this.originalRotations.get(pageId)}deg)`;
}
}
});
}
get description(): string {
return `Rotate ${this.pageIds.length} page(s) ${this.degrees > 0 ? 'right' : 'left'}`;
}
}
export class BulkSplitCommand extends DOMCommand {
private originalSplitPositions: Set<number> = new Set();
constructor(
private positions: number[],
private getSplitPositions: () => Set<number>,
private setSplitPositions: (positions: Set<number>) => void
) {
super();
}
execute(): void {
// Store original state for undo (only on first execution)
if (this.originalSplitPositions.size === 0) {
this.originalSplitPositions = new Set(this.getSplitPositions());
}
// Toggle each position
const currentPositions = new Set(this.getSplitPositions());
this.positions.forEach(position => {
if (currentPositions.has(position)) {
currentPositions.delete(position);
} else {
currentPositions.add(position);
}
});
this.setSplitPositions(currentPositions);
}
undo(): void {
// Restore original split positions
this.setSplitPositions(this.originalSplitPositions);
}
get description(): string {
return `Toggle ${this.positions.length} split position(s)`;
}
}
export class SplitAllCommand extends DOMCommand {
private originalSplitPositions: Set<number> = new Set();
private allPossibleSplits: Set<number> = new Set();
constructor(
private totalPages: number,
private getSplitPositions: () => Set<number>,
private setSplitPositions: (positions: Set<number>) => void
) {
super();
// Calculate all possible split positions (between pages, not after last page)
for (let i = 0; i < this.totalPages - 1; i++) {
this.allPossibleSplits.add(i);
}
}
execute(): void {
// Store original state for undo
this.originalSplitPositions = new Set(this.getSplitPositions());
// Check if all splits are already active
const currentSplits = this.getSplitPositions();
const hasAllSplits = Array.from(this.allPossibleSplits).every(pos => currentSplits.has(pos));
if (hasAllSplits) {
// Remove all splits
this.setSplitPositions(new Set());
} else {
// Add all splits
this.setSplitPositions(this.allPossibleSplits);
}
}
undo(): void {
// Restore original split positions
this.setSplitPositions(this.originalSplitPositions);
}
get description(): string {
const currentSplits = this.getSplitPositions();
const hasAllSplits = Array.from(this.allPossibleSplits).every(pos => currentSplits.has(pos));
return hasAllSplits ? 'Remove all splits' : 'Split all pages';
}
}
// Simple undo manager for DOM commands
export class UndoManager {
private undoStack: DOMCommand[] = [];
private redoStack: DOMCommand[] = [];
private onStateChange?: () => void;
setStateChangeCallback(callback: () => void): void {
this.onStateChange = callback;
}
executeCommand(command: DOMCommand): void {
command.execute();
this.undoStack.push(command);
this.redoStack = [];
this.onStateChange?.();
}
undo(): boolean {
const command = this.undoStack.pop();
if (command) {
command.undo();
this.redoStack.push(command);
this.onStateChange?.();
return true;
}
return false;
}
redo(): boolean {
const command = this.redoStack.pop();
if (command) {
command.execute();
this.undoStack.push(command);
this.onStateChange?.();
return true;
}
return false;
}
canUndo(): boolean {
return this.undoStack.length > 0;
}
canRedo(): boolean {
return this.redoStack.length > 0;
}
clear(): void {
this.undoStack = [];
this.redoStack = [];
this.onStateChange?.();
}
}

136
frontend/src/components/pageEditor/hooks/usePageDocument.ts Normal file
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@ -0,0 +1,136 @@
import { useMemo } from 'react';
import { useFileState } from '../../../contexts/FileContext';
import { PDFDocument, PDFPage } from '../../../types/pageEditor';
export interface PageDocumentHook {
document: PDFDocument | null;
isVeryLargeDocument: boolean;
isLoading: boolean;
}
/**
* Hook for managing PDF document state and metadata in PageEditor
* Handles document merging, large document detection, and loading states
*/
export function usePageDocument(): PageDocumentHook {
const { state, selectors } = useFileState();
// Prefer IDs + selectors to avoid array identity churn
const activeFileIds = state.files.ids;
const primaryFileId = activeFileIds[0] ?? null;
// Stable signature for effects (prevents loops)
const filesSignature = selectors.getFilesSignature();
// UI state
const globalProcessing = state.ui.isProcessing;
// Get primary file record outside useMemo to track processedFile changes
const primaryFileRecord = primaryFileId ? selectors.getFileRecord(primaryFileId) : null;
const processedFilePages = primaryFileRecord?.processedFile?.pages;
const processedFileTotalPages = primaryFileRecord?.processedFile?.totalPages;
// Compute merged document with stable signature (prevents infinite loops)
const mergedPdfDocument = useMemo((): PDFDocument | null => {
if (activeFileIds.length === 0) return null;
const primaryFile = primaryFileId ? selectors.getFile(primaryFileId) : null;
// If we have file IDs but no file record, something is wrong - return null to show loading
if (!primaryFileRecord) {
console.log('🎬 PageEditor: No primary file record found, showing loading');
return null;
}
const name =
activeFileIds.length === 1
? (primaryFileRecord.name ?? 'document.pdf')
: activeFileIds
.map(id => (selectors.getFileRecord(id)?.name ?? 'file').replace(/\.pdf$/i, ''))
.join(' + ');
// Debug logging for merged document creation
console.log(`🎬 PageEditor: Building merged document for ${name} with ${activeFileIds.length} files`);
// Collect pages from ALL active files, not just the primary file
let pages: PDFPage[] = [];
let totalPageCount = 0;
activeFileIds.forEach((fileId, fileIndex) => {
const fileRecord = selectors.getFileRecord(fileId);
if (!fileRecord) {
console.warn(`🎬 PageEditor: No record found for file ${fileId}`);
return;
}
const processedFile = fileRecord.processedFile;
console.log(`🎬 PageEditor: Processing file ${fileIndex + 1}/${activeFileIds.length} (${fileRecord.name})`);
console.log(`🎬 ProcessedFile exists:`, !!processedFile);
console.log(`🎬 ProcessedFile pages:`, processedFile?.pages?.length || 0);
console.log(`🎬 ProcessedFile totalPages:`, processedFile?.totalPages || 'unknown');
let filePages: PDFPage[] = [];
if (processedFile?.pages && processedFile.pages.length > 0) {
// Use fully processed pages with thumbnails
filePages = processedFile.pages.map((page, pageIndex) => ({
id: `${fileId}-${page.pageNumber}`,
pageNumber: totalPageCount + pageIndex + 1,
thumbnail: page.thumbnail || null,
rotation: page.rotation || 0,
selected: false,
splitAfter: page.splitAfter || false,
originalPageNumber: page.originalPageNumber || page.pageNumber || pageIndex + 1,
originalFileId: fileId,
}));
} else if (processedFile?.totalPages) {
// Fallback: create pages without thumbnails but with correct count
console.log(`🎬 PageEditor: Creating placeholder pages for ${fileRecord.name} (${processedFile.totalPages} pages)`);
filePages = Array.from({ length: processedFile.totalPages }, (_, pageIndex) => ({
id: `${fileId}-${pageIndex + 1}`,
pageNumber: totalPageCount + pageIndex + 1,
originalPageNumber: pageIndex + 1,
originalFileId: fileId,
rotation: 0,
thumbnail: null, // Will be generated later
selected: false,
splitAfter: false,
}));
}
pages = pages.concat(filePages);
totalPageCount += filePages.length;
});
if (pages.length === 0) {
console.warn('🎬 PageEditor: No pages found in any files');
return null;
}
console.log(`🎬 PageEditor: Created merged document with ${pages.length} total pages`);
const mergedDoc: PDFDocument = {
id: activeFileIds.join('-'),
name,
file: primaryFile!,
pages,
totalPages: pages.length,
};
return mergedDoc;
}, [activeFileIds, primaryFileId, primaryFileRecord, processedFilePages, processedFileTotalPages, selectors, filesSignature]);
// Large document detection for smart loading
const isVeryLargeDocument = useMemo(() => {
return mergedPdfDocument ? mergedPdfDocument.totalPages > 2000 : false;
}, [mergedPdfDocument?.totalPages]);
// Loading state
const isLoading = globalProcessing && !mergedPdfDocument;
return {
document: mergedPdfDocument,
isVeryLargeDocument,
isLoading
};
}

96
frontend/src/components/pageEditor/hooks/usePageEditorState.ts Normal file
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@ -0,0 +1,96 @@
import { useState, useCallback } from 'react';
export interface PageEditorState {
// Selection state
selectionMode: boolean;
selectedPageNumbers: number[];
// Animation state
movingPage: number | null;
isAnimating: boolean;
// Split state
splitPositions: Set<number>;
// Export state
exportLoading: boolean;
// Actions
setSelectionMode: (mode: boolean) => void;
setSelectedPageNumbers: (pages: number[]) => void;
setMovingPage: (pageNumber: number | null) => void;
setIsAnimating: (animating: boolean) => void;
setSplitPositions: (positions: Set<number>) => void;
setExportLoading: (loading: boolean) => void;
// Helper functions
togglePage: (pageNumber: number) => void;
toggleSelectAll: (totalPages: number) => void;
animateReorder: () => void;
}
/**
* Hook for managing PageEditor UI state
* Handles selection, animation, splits, and export states
*/
export function usePageEditorState(): PageEditorState {
// Selection state
const [selectionMode, setSelectionMode] = useState(false);
const [selectedPageNumbers, setSelectedPageNumbers] = useState<number[]>([]);
// Animation state
const [movingPage, setMovingPage] = useState<number | null>(null);
const [isAnimating, setIsAnimating] = useState(false);
// Split state - position-based split tracking (replaces page-based splitAfter)
const [splitPositions, setSplitPositions] = useState<Set<number>>(new Set());
// Export state
const [exportLoading, setExportLoading] = useState(false);
// Helper functions
const togglePage = useCallback((pageNumber: number) => {
setSelectedPageNumbers(prev =>
prev.includes(pageNumber)
? prev.filter(n => n !== pageNumber)
: [...prev, pageNumber]
);
}, []);
const toggleSelectAll = useCallback((totalPages: number) => {
if (!totalPages) return;
const allPageNumbers = Array.from({ length: totalPages }, (_, i) => i + 1);
setSelectedPageNumbers(prev =>
prev.length === allPageNumbers.length ? [] : allPageNumbers
);
}, []);
const animateReorder = useCallback(() => {
setIsAnimating(true);
setTimeout(() => setIsAnimating(false), 500);
}, []);
return {
// State
selectionMode,
selectedPageNumbers,
movingPage,
isAnimating,
splitPositions,
exportLoading,
// Setters
setSelectionMode,
setSelectedPageNumbers,
setMovingPage,
setIsAnimating,
setSplitPositions,
setExportLoading,
// Helpers
togglePage,
toggleSelectAll,
animateReorder,
};
}