// 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 add watermarks to OFD documents.

// Include Foxit SDK header files.
#include <iostream>
#if defined(_WIN32) || defined(_WIN64)
#include <direct.h>
#else
#include <sys/stat.h>
#endif

#include "common/fs_common.h"
#include "ofd/fs_ofdpackage.h"
#include "ofd/fs_ofddoc.h"
#include "ofd/watermark/fs_ofdwatermark.h"
#include "ofd/graphics/fs_ofdgraphicsobject.h"
#include "ofd/annots/fs_ofdannot.h"
#include "ofd/fs_ofdpage.h"

using namespace std;
using namespace foxit;
using namespace foxit::common;
using foxit::common::Library;
using namespace foxit::ofd;

static const char* sn = "fpj42y0uOGt8cNp2iJUJdW5LNQGpJDawgJ5niOHYLl+0Emd0mMDhtA==";
static const char* key = "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";

#if defined(_WIN32) || defined(_WIN64)
static WString output_path = WString::FromLocal("../output_files/");
static WString input_path = WString::FromLocal("../input_files/");
#else
static WString output_path = WString::FromLocal("./output_files/");
static WString input_path = WString::FromLocal("./input_files/");
#endif

class SdkLibMgr {
public:
  SdkLibMgr() : is_initialize_(false) {};
  ErrorCode Initialize() {
    ErrorCode error_code = Library::Initialize(sn, key);
    if (error_code != foxit::e_ErrSuccess) {
      printf("Library Initialize Error: %d\n", error_code);
    } else {
      is_initialize_ = true;
    }
    return error_code;
  }
  ~SdkLibMgr() {
    if (is_initialize_)
      Library::Release();
  }
private:
  bool is_initialize_;
};

int main(int argc, char* argv[])
{
  WString output_directory = output_path + L"ofd_watermark/";
#if defined(_WIN32) || defined(_WIN64)
  _mkdir(String::FromUnicode(output_directory));
#else
  mkdir(String::FromUnicode(output_directory), S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
#endif

  int err_ret = 0;
  SdkLibMgr sdk_lib_mgr;
  // Initialize library
  ErrorCode error_code = sdk_lib_mgr.Initialize();
  if (error_code != foxit::e_ErrSuccess) {
    return 1;
  }

  // Add text watermark with position
  try {
    cout << "Start: Add text watermark to OFD page." << endl;
    {
      WString input_file = input_path + L"sample.ofd";
      WString output_file = output_directory + L"text_watermark.ofd";

      OFDPackage pkg(input_file);
      if (pkg.IsEmpty()) {
        cout << "Failed to open OFD package." << endl;
        return 1;
      }

      OFDDoc doc = pkg.LoadDocument(0, "");
      if (doc.IsEmpty()) {
        cout << "Failed to load OFD document." << endl;
        return 1;
      }

      int page_count = doc.GetPageCount();
      if (page_count > 0) {
        OFDPage page = doc.GetPage(0);

        Watermark watermark(page);

        // Create text properties: text, font_name, font_size, char_space, text_color
        TextProperties text_props("CONFIDENTIAL", "SimSun", 20.0f, 0.5f, 0xFF0000);

        // Create watermark settings: x_pos, y_pos, width, height, rotation, opacity
        WatermarkSettings settings(50.0f, 100.0f, 80.0f, 20.0f, 30.0f, 128);

        bool result = watermark.AddTextWatermark(text_props, settings);
        if (result) {
          cout << "Text watermark added successfully." << endl;
        } else {
          cout << "Failed to add text watermark." << endl;
          err_ret = 1;
        }
      }

      pkg.SaveAs(output_file);
      cout << "Output file: text_watermark.ofd" << endl;
    }
    cout << "End: Add text watermark." << endl;
  } catch (const Exception& e) {
    cout << e.GetMessage() << endl;
    err_ret = 1;
  }

  // Add aligned text watermark
  try {
    cout << "Start: Add aligned text watermark to OFD page." << endl;
    {
      WString input_file = input_path + L"sample.ofd";
      WString output_file = output_directory + L"align_text_watermark.ofd";

      OFDPackage pkg(input_file);
      if (pkg.IsEmpty()) {
        cout << "Failed to open OFD package." << endl;
        err_ret = 1;
      } else {
        OFDDoc doc = pkg.LoadDocument(0, "");
        if (doc.IsEmpty()) {
          cout << "Failed to load OFD document." << endl;
          err_ret = 1;
        } else {
          int page_count = doc.GetPageCount();
          if (page_count > 0) {
            OFDPage page = doc.GetPage(0);

            Watermark watermark(page);

            TextProperties text_props("DRAFT", "SimHei", 30.0f, 1.0f, 0x808080);

            // Create alignment settings: h_align, v_align, width, height, rotation, opacity
            AlignmentWatermarkSettings align_settings(
              AlignmentWatermarkSettings::e_WatermarkHAlignCenter,
              AlignmentWatermarkSettings::e_WatermarkVAlignMiddle,
              100.0f, 30.0f, 45.0f, 100);

            bool result = watermark.AddAlignTextWatermark(text_props, align_settings);
            if (result) {
              cout << "Aligned text watermark added successfully." << endl;
            } else {
              cout << "Failed to add aligned text watermark." << endl;
              err_ret = 1;
            }
          }

          pkg.SaveAs(output_file);
          cout << "Output file: align_text_watermark.ofd" << endl;
        }
      }
    }
    cout << "End: Add aligned text watermark." << endl;
  } catch (const Exception& e) {
    cout << e.GetMessage() << endl;
    err_ret = 1;
  }

  // Add tiled text watermark
  try {
    cout << "Start: Add tiled text watermark to OFD page." << endl;
    {
      WString input_file = input_path + L"sample.ofd";
      WString output_file = output_directory + L"tiled_text_watermark.ofd";

      OFDPackage pkg(input_file);
      if (pkg.IsEmpty()) {
        cout << "Failed to open OFD package." << endl;
        err_ret = 1;
      } else {
        OFDDoc doc = pkg.LoadDocument(0, "");
        if (doc.IsEmpty()) {
          cout << "Failed to load OFD document." << endl;
          err_ret = 1;
        } else {
          int page_count = doc.GetPageCount();
          if (page_count > 0) {
            OFDPage page = doc.GetPage(0);

            Watermark watermark(page);

            TextProperties text_props("SAMPLE", "SimSun", 15.0f, 0.5f, 0x0000FF);

            // Create tiled settings: x_pos, y_pos, width, height, rotation, opacity, x_step, y_step
            TiledWatermarkSettings tiled_settings(10.0f, 10.0f, 60.0f, 15.0f, 30.0f, 80, 80.0f, 60.0f);

            bool result = watermark.AddTiledTextWatermark(text_props, tiled_settings);
            if (result) {
              cout << "Tiled text watermark added successfully." << endl;
            } else {
              cout << "Failed to add tiled text watermark." << endl;
              err_ret = 1;
            }
          }

          pkg.SaveAs(output_file);
          cout << "Output file: tiled_text_watermark.ofd" << endl;
        }
      }
    }
    cout << "End: Add tiled text watermark." << endl;
  } catch (const Exception& e) {
    cout << e.GetMessage() << endl;
    err_ret = 1;
  }

  // Add region text watermark
  try {
    cout << "Start: Add region text watermark to OFD page." << endl;
    {
      WString input_file = input_path + L"sample.ofd";
      WString output_file = output_directory + L"region_text_watermark.ofd";

      OFDPackage pkg(input_file);
      if (pkg.IsEmpty()) {
        cout << "Failed to open OFD package." << endl;
        err_ret = 1;
      } else {
        OFDDoc doc = pkg.LoadDocument(0, "");
        if (doc.IsEmpty()) {
          cout << "Failed to load OFD document." << endl;
          err_ret = 1;
        } else {
          int page_count = doc.GetPageCount();
          if (page_count > 0) {
            OFDPage page = doc.GetPage(0);

            Watermark watermark(page);

            TextProperties text_props("RESTRICTED", "SimSun", 12.0f, 0.3f, 0xFF0000);

            // Region: left, bottom, right, top
            RectF region(20.0f, 100.0f, 100.0f, 20.0f);

            TiledWatermarkSettings tiled_settings(0.0f, 0.0f, 20.0f, 20.0f, 30.0f, 60, 50.0f, 50.0f);

            bool result = watermark.AddRegionTextWatermark(region, text_props, tiled_settings);
            if (result) {
              cout << "Region text watermark added successfully." << endl;
            } else {
              cout << "Failed to add region text watermark." << endl;
              err_ret = 1;
            }
          }

          pkg.SaveAs(output_file);
          cout << "Output file: region_text_watermark.ofd" << endl;
        }
      }
    }
    cout << "End: Add region text watermark." << endl;
  } catch (const Exception& e) {
    cout << e.GetMessage() << endl;
    err_ret = 1;
  }

  // Add multi-area text watermark
  try {
    cout << "Start: Add multi-area text watermark to OFD page." << endl;
    {
      WString input_file = input_path + L"sample.ofd";
      WString output_file = output_directory + L"multi_area_text_watermark.ofd";

      OFDPackage pkg(input_file);
      if (pkg.IsEmpty()) {
        cout << "Failed to open OFD package." << endl;
        err_ret = 1;
      } else {
        OFDDoc doc = pkg.LoadDocument(0, "");
        if (doc.IsEmpty()) {
          cout << "Failed to load OFD document." << endl;
          err_ret = 1;
        } else {
          int page_count = doc.GetPageCount();
          if (page_count > 0) {
            OFDPage page = doc.GetPage(0);

            Watermark watermark(page);

            TextProperties text_props("INTERNAL", "SimHei", 10.0f, 0.5f, 0x008000);

            WatermarkSettings settings(0.0f, 0.0f, 40.0f, 10.0f, 45.0f, 80);

            // 3 horizontal areas x 4 vertical areas
            bool result = watermark.AddMultiAreaTextWatermark(3, 4, text_props, settings);
            if (result) {
              cout << "Multi-area text watermark added successfully." << endl;
            } else {
              cout << "Failed to add multi-area text watermark." << endl;
              err_ret = 1;
            }
          }

          pkg.SaveAs(output_file);
          cout << "Output file: multi_area_text_watermark.ofd" << endl;
        }
      }
    }
    cout << "End: Add multi-area text watermark." << endl;
  } catch (const Exception& e) {
    cout << e.GetMessage() << endl;
    err_ret = 1;
  }

  return err_ret;
}
