// 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 do output preview.


#include "FSPDFObjC.h"

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

NSString *output_directory = [output_path stringByAppendingString:@"output_preview/"];

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

int main(int argc, const char * argv[]) {
	bool is_run_success = false;
	@autoreleasepool {
		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* pdf_file_name = @"page_organization_123.pdf";
			NSString* pdf_path = [input_path stringByAppendingPathComponent:pdf_file_name];

			// "default_icc_folder_path" is the path of the folder which contains default icc profile files. Please refer to Developer Guide for more details.
			NSString* default_icc_folder_path = @"";
			
			if ([default_icc_folder_path length] < 1) {
				NSLog(@"default_icc_folder_path is still empty. Please set it with a valid path to the folder which contains default icc profile files.");
				return -1;
			}
			[FSLibrary setDefaultICCProfilesPath:default_icc_folder_path];

			FSPDFDoc *pdf_doc = [[FSPDFDoc alloc] initWithPath:pdf_path];
			FSErrorCode errorCode = [pdf_doc load:nil];
			if (errorCode != FSErrSuccess) {
				NSLog(@"The Doc [%@] Error: %ld", pdf_path, errorCode);
				return -1;
			}
			FSPDFPage* pdf_page = [pdf_doc getPage:0];
			[pdf_page startParse:FSPDFPageParsePageNormal pause:nil is_reparse:NO];
			float page_width = [pdf_page getWidth];
			float page_height = [pdf_page getHeight];
			int width = (int)page_width;
			int height = (int)page_height;

			FSBitmapDIBFormat bitmap_format = FSBitmapDIBInvalid;
			unsigned int background_color = 0x000000;
			if ([pdf_page hasTransparency]) {
				background_color = 0x000000;
				bitmap_format = FSBitmapDIBArgb;
			} else {
				background_color = 0xFFFFFF;
				bitmap_format = FSBitmapDIBRgb32;
			}
			FSBitmap* bitmap = [[FSBitmap alloc] initWithWidth:width height:height format:bitmap_format buffer:nil pitch:0];
			[bitmap fillRect:background_color rect:nil];

			FSMatrix2D* display_matrix = [pdf_page getDisplayMatrix:0 top:0 width:width height:height rotate:FSRotation0];
			// Render page
			FSRenderer* renderer = [[FSRenderer alloc] initWithBitmap:bitmap is_rgb_order:NO];

			FSOutputPreview* output_preview = [[FSOutputPreview alloc] initWithPdf_doc:pdf_doc];
			NSString* simulation_icc_file_path = [input_path stringByAppendingPathComponent:@"icc_profile/USWebCoatedSWOP.icc"];
			[output_preview setSimulationProfile:simulation_icc_file_path];
			[output_preview setShowType:FSOutputPreviewShowAll];
			NSArray<NSString *>* process_plates = [output_preview getPlates:FSOutputPreviewColorantTypeProcess];
			NSArray<NSString *>* spot_plates = [output_preview getPlates:FSOutputPreviewColorantTypeSpot];

			// Set check status of spot plate to be true, if there's any spot plate.
			for (int i = 0; i < [spot_plates count]; i++) {
				[output_preview setCheckStatus:[spot_plates objectAtIndex:i] to_check:true];
			}

			// Only set one process plate to be checked each time and generate the preview bitmap.
			for (int i = 0; i < [process_plates count]; i++) {
				if (0 != i)
					[output_preview setCheckStatus:[process_plates objectAtIndex:(i-1)] to_check:false];
				[output_preview setCheckStatus:[process_plates objectAtIndex:i] to_check:true];

				FSBitmap* preview_bitmap = [output_preview generatePreviewBitmap:pdf_page matrix:display_matrix renderer:renderer];

				FSImage* image = [FSImage new];
				[image addFrame:preview_bitmap];
				NSString* file_name = [NSString stringWithFormat:@"preview_result_ProcessPlate[%d]_true.bmp",i];
				NSString* save_image_path = [NSString stringWithFormat:@"%@%@", output_directory, file_name];
				[image saveAs:save_image_path];
			}
			is_run_success = true;
		}
		@catch (NSException *e) {
			NSLog(@"Unknown Exception, %@", e);
		}
		NSLog(@"[END] demo output_preview.");
	}
	[FSLibrary destroy];
	return is_run_success ? 0 : 1;
}

