#pragma once

/**
 * Applies a BSDIFF43 binary patch to an input file and writes the patched result to an output file.
 *
 * @param inputFilename   The path to the original input file to be patched.
 * @param patchFilename   The path to the BSDIFF43 patch file (bzip2-compressed).
 * @param outputFilename  The path to the output file where the patched result will be written.
 * @param compressMethod  0:Not compress 1: bzip 2:zstd
 * @return true if the patch is applied successfully; false otherwise.
 *
 * The function performs the following steps:
 * 1. Validates input, patch, and output file names.
 * 2. Reads the input file into memory.
 * 3. Opens the patch file and verifies its BSDIFF43 header.
 * 4. Reads the expected output file size from the patch header and allocates a buffer for the output.
 * 5. Initializes bzip2 decompression for the patch data.
 * 6. Uses the bspatch algorithm to apply the patch, writing the result to the output buffer.
 * 7. Writes the patched data to the output file.
 * 8. Cleans up all resources and returns true on success, or false if any error occurs.
 */
bool applyPatch(const char* inputFilename, const char* patchFilename, const char* outputFilename, int32_t compressMethod);