import sys

p = r"C:/Users/locpham/SonicForgeStudio/native_bridge/src/main.cpp"
data = open(p, "rb").read()

def rep(old, new, count=1):
    global data
    old = old.encode(); new = new.encode()
    assert data.count(old) >= count, "pattern not found: %r" % old
    data = data.replace(old, new, count)

# unwind stack from exception context BEFORE the dump writer clobbers it
stackdump = r"""
// Unwind the LIVE stack from the exception context (MiniDumpWriteDump captures
// the context at dump time, not at raise time — by then the handler's own
// frames replace the real ones). Print return-address candidates that land in
// loaded modules, lowest stack address first.
#ifdef _WIN32
static void DumpStackTraceFromContext(const CONTEXT* ctx) {
    if (!ctx) return;
    std::cerr << "[VCRASH] stack trace (raw scan):" << std::endl;
    const unsigned char* sp = (const unsigned char*)ctx->Rsp;
    for (int i = 0; i < 512; i++) {
        uintptr_t val = 0;
        memcpy(&val, sp + i * 8, sizeof(val));  // stack is readable in a handler
        HMODULE h = nullptr;
        char m[MAX_PATH] = {0};
        if (GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
                                   GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
                               (LPCSTR)val, &h) && h && GetModuleFileNameA(h, m, MAX_PATH)) {
            const char* base = strrchr(m, '\\');
            base = base ? base + 1 : m;
            std::cerr << "  +" << i * 8 << "  " << (void*)val << "  " << base
                      << "+0x" << std::hex << (val - (uintptr_t)h) << std::dec << std::endl;
        }
    }
}
#endif
"""

rep("static LONG WINAPI VectoredCrashHandler(PEXCEPTION_POINTERS ep) {",
    stackdump + "\nstatic LONG WINAPI VectoredCrashHandler(PEXCEPTION_POINTERS ep) {")

# call it right at handler entry
rep("""    std::cerr << "[VCRASH] first-chance code=0x" << std::hex << code
              << " addr=0x" << (er ? (void*)er->ExceptionAddress : nullptr)
              << std::dec << " tid=" << GetCurrentThreadId() << std::endl;""",
    """    std::cerr << "[VCRASH] first-chance code=0x" << std::hex << code
              << " addr=0x" << (er ? (void*)er->ExceptionAddress : nullptr)
              << std::dec << " tid=" << GetCurrentThreadId() << std::endl;
    DumpStackTraceFromContext(ep ? ep->ContextRecord : nullptr);""")

open(p, "wb").write(data)
print("patched OK, size=", len(data))