// Copyright (C) 2003-2026, Foxit Software Inc..
// All Rights Reserved.
//
// http://www.foxitsoftware.com
//
// The following code is copyrighted and contains proprietary information and trade secrets of Foxit Software Inc..
// You cannot distribute any part of Foxit PDF SDK to any third party or general public,
// unless there is a separate license agreement with Foxit Software Inc. which explicitly grants you such rights.
//
// This file contains an example to demonstrate how to use Foxit PDF SDK to edit paragraph in a PDF document.


#include "FSPDFObjC.h"

NSString *input_path = @"../input_files/";
NSString *output_path = @"../output_files/";

NSString* sn = @"bPxThFlBAYifO3yiW0C51bKbjPap1zHaf5aG5sX378TjFvB7Q0802A==";
NSString* key = @"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";

@interface FxParagraphEditingProviderCallbackOC : NSObject <FSParagraphEditingProviderCallback>
{
    @private
    FSPDFPage* page;
}
-(id)init;
-(id)initWithPage:(FSPDFPage*)page_;
@end

@implementation FxParagraphEditingProviderCallbackOC
-(id)init {
    page = nil;
    return self;
}

-(id)initWithPage:(FSPDFPage*)page_{
    page = page_;
    return self;
}

- (FSMatrix2D *)getRenderMatrix:(FSPDFDoc *)document page_index:(int)pageIndex {
    int width = (int)[self->page getWidth];
    int height = (int)[self->page getHeight];
    FSMatrix2D *matrix = [self->page getDisplayMatrix:0 top:0 width:width height:height rotate:FSRotation0];
    return matrix;
}

- (void*)getPageViewHandle:(FSPDFDoc *)document page_index:(int)pageIndex {
    return nil;
}

- (FSRectF *)getClientRect:(FSPDFDoc *)document {
    return [[FSRectF alloc] init];
}

- (float)getScale:(FSPDFDoc *)document page_index:(int)pageIndex {
    return 1.0f;
}

- (BOOL)gotoPageView:(FSPDFDoc *)document page_index:(int)pageIndex left:(float)left top:(float)top {
    return YES;
}


- (NSArray<NSNumber *> *)getVisiblePageIndexArray:(FSPDFDoc *)document {    
    NSMutableArray<NSNumber *> *pageArray = [NSMutableArray array];
    int pageIndex = (int)[self->page getIndex];
    [pageArray addObject:@(pageIndex)];
    return [pageArray copy];
}

- (FSRectF *)getPageVisibleRect:(FSPDFDoc *)document page_index:(int)pageIndex {
    return [[FSRectF alloc] init];
}

- (FSRectF *)getPageRect:(FSPDFDoc *)document page_index:(int)pageIndex {
    int width = (int)[self->page getWidth];
    int height = (int)[self->page getHeight];
	FSRectF* rect = [[FSRectF alloc] initWithLeft1:0 bottom1:height right1:width top1:0];
    return rect;
}

- (int)getCurrentPageIndex:(FSPDFDoc *)document {
    return (int)[self->page getIndex];
}

- (FSRotation)getRotation:(FSPDFDoc *)document page_index:(int)pageIndex {
    return [self->page getRotation];
}
    

- (void)invalidateRect:(FSPDFDoc *)document page_index:(int)pageIndex invalid_rects:(FSRectFArray*)invalid_rects {

}

- (void)addUndoItem:(FSParagraphEditingUndoItem *)undoItem {
}

- (void)setDocChangeMark:(FSPDFDoc *)document {
}

- (void)notifyTextInputReachLimit:(FSPDFDoc *)document page_index:(int)pageIndex {
}

@end

int main(int argc, const char * argv[]) {
	bool is_run_success = false;
	@autoreleasepool {
        NSString *output_directory = [output_path stringByAppendingString:@"paragraph_editing/"];
        NSFileManager *fileManager = [NSFileManager defaultManager];
		BOOL isDir = NO;
		if ([fileManager fileExistsAtPath:output_directory isDirectory:&isDir]) {
			if (!isDir) {
				NSError *error = nil;
				if (![fileManager removeItemAtPath:output_directory error:&error] || error) {
					return -1;
				}
				if (![fileManager createDirectoryAtPath:output_directory withIntermediateDirectories:YES attributes:nil error:&error] || error) {
					return -1;
				}
			}
		} else {
			NSError *error = nil;
			if (![fileManager createDirectoryAtPath:output_directory withIntermediateDirectories:YES attributes:nil error:&error] || error) {
				return -1;
			}
		}
    
		// Initialize library
		FSErrorCode errorCode = [FSLibrary initialize:sn key:key];
		if (errorCode != FSErrSuccess) {
			NSLog(@"Library Initialize Error: %ld", errorCode);
			return -1;
		}
		
		@try {
            NSString* input_pdf_name = @"AboutFoxit.pdf";
            NSString* input_pdf_path = [input_path stringByAppendingPathComponent:input_pdf_name];
            
            FSPDFDoc* doc = [[FSPDFDoc alloc] initWithPath:input_pdf_path];
            FSErrorCode errorCode = [doc load:nil];
            if (errorCode != FSErrSuccess) {
                NSLog(@"The Doc [%@] Error: %ld", input_pdf_path, errorCode);
                return -1;
            }

			FSPDFPage *page = [doc getPage:0];
			[page startParse:FSPDFPageParsePageNormal pause:nil is_reparse:NO];
			int height = static_cast<int>([page getHeight]);
			height = height ;
			FxParagraphEditingProviderCallbackOC *callback = [[FxParagraphEditingProviderCallbackOC alloc] initWithPage:page];
			FSParagraphEditingMgr *touchup_mgr = [[FSParagraphEditingMgr alloc] initWithCallback:callback document:doc];

			//Paragraph_editing
            FSParagraphEditing* paragraphEditing = [touchup_mgr getParagraphEditing];
			[paragraphEditing activate];
			FSPointF* point = [FSPointF new];
            [point set:95 y:height- 728];
            [paragraphEditing startEditing:0 start_point:point end_point:point];
			[paragraphEditing setFontSize:24];
            [paragraphEditing setUnderline:YES];
			NSString* insert_text = @"InsertText_Paragraph_editing";
            [paragraphEditing insertText:insert_text];
            [paragraphEditing deactivate];
            NSString* save_pdf_path = [NSString  stringWithFormat:@"%@%@", output_directory, @"Paragraph_editing.pdf"];
            [doc saveAs:save_pdf_path save_flags:FSPDFDocSaveFlagNoOriginal];
            
			//Join&split
			FSJoinSplit* joinSplit = [touchup_mgr getJoinSplit];
            [point set:289 y:height- 659];
			[joinSplit activate];
			[joinSplit onLButtonDown:0 point:point];
			[joinSplit onLButtonUp:0 point:point];
			[joinSplit splitBoxes];
			[joinSplit deactivate];
			save_pdf_path = [NSString  stringWithFormat:@"%@%@", output_directory, @"Split_Boxes.pdf"];
            [doc saveAs:save_pdf_path save_flags:FSPDFDocSaveFlagNoOriginal];
			
			[point set:307 y:height - 637];
			[joinSplit activate];
			[joinSplit onLButtonDown:0 point:point];
			[joinSplit onLButtonUp:0 point:point];
			[point set:307 y:height - 453];
			[joinSplit onLButtonDown:0 point:point];
			[joinSplit onLButtonUp:0 point:point];
			[joinSplit joinBoxes];
			[joinSplit deactivate];
			save_pdf_path = [NSString  stringWithFormat:@"%@%@", output_directory, @"Join_Boxes.pdf"];
            [doc saveAs:save_pdf_path save_flags:FSPDFDocSaveFlagNoOriginal];
			
            NSLog(@"Paragraph editing successfully.");
		}
		@catch (NSException *e) {
			NSLog(@"Unknown Exception, %@", e);
		}
	}
	[FSLibrary destroy];
	return is_run_success ? 0 : 1;
}

