#pragma once

/**
 * Creates a binary diff patch file between two input files using the BSDIFF43 format and bzip2 compression.
 *
 * @param inputFilename1  The path to the original (old) input file.
 * @param inputFilename2  The path to the new input file to compare against.
 * @param outputFilename  The path to the output file where the diff patch will be written.
 * @param compressMethod  0:Not compress 1: bzip 2:zstd
 * @return true if the diff file is created successfully; false otherwise.
 *
 * The function performs the following steps:
 * 1. Validates input and output file names.
 * 2. Reads both input files into memory buffers.
 * 3. Opens the output file for writing and writes the BSDIFF43 header and the new file size.
 * 4. Initializes bzip2 compression for the output file.
 * 5. Uses the bsdiff algorithm to generate the binary diff between the two buffers, writing the result through a bzip2 stream.
 * 6. Finalizes the bzip2 stream and closes all files and buffers.
 * 7. Returns true on success, or false if any error occurs during processing.
 */
bool createDiff(const char* inputFilename, const char* inputFilename2, const char* outputFilename, int32_t compressMethod);