from fastapi import BackgroundTasks, Depends, FastAPI

app = FastAPI()


def write_log(message: str):
    with open("log.txt", mode="a") as log:
        log.write(message)


def get_query(background_tasks: BackgroundTasks, q: Union[str, None] = None):
    if q:
        message = f"found query: {q}\n"
        background_tasks.add_task(write_log, message)
    return q


@app.post("/send-notification/{email}")

        long MILLISECONDS_BETWEEN_1970_AND_1601 = 11644473600000L;
        writeLong(buffer, 0, (create + MILLISECONDS_BETWEEN_1970_AND_1601) * 10000L);
        writeLong(buffer, 8, (lastAccess + MILLISECONDS_BETWEEN_1970_AND_1601) * 10000L);
        writeLong(buffer, 16, (lastWrite + MILLISECONDS_BETWEEN_1970_AND_1601) * 10000L);
        writeLong(buffer, 24, (change + MILLISECONDS_BETWEEN_1970_AND_1601) * 10000L);

    @Test
    @DisplayName("writeULong writes little endian bytes")
    void testWriteULong() {
        byte[] dest = new byte[4];
        NtlmMessage.writeULong(dest, 0, 0x01020304);
        assertArrayEquals(new byte[] { 4, 3, 2, 1 }, dest, "Writer must be little‑endian");
    }

    @Test
    @DisplayName("writeULong handles negative values as unsigned")
    void testWriteULongNegative() {

            dos.writeInt(Integer.reverseBytes(10));
            dos.writeLong(Long.reverseBytes(100));

            dos.writeInt(Integer.reverseBytes(PacConstants.SERVER_CHECKSUM));
            dos.writeInt(Integer.reverseBytes(16));
            dos.writeLong(Long.reverseBytes(200));

            dos.writeInt(Integer.reverseBytes(PacConstants.PRIVSVR_CHECKSUM));

    }

    @Test
    void testWriteULong() {
        // Test writeULong
        byte[] data = new byte[4];
        ByteBuffer expectedBuffer = ByteBuffer.allocate(4).order(ByteOrder.LITTLE_ENDIAN);

        // Test with a positive value
        int value = 0x12345678;
        NtlmMessage.writeULong(data, 0, value);
        expectedBuffer.putInt(0, value);

            }
            final byte[] type1 = new byte[hostInfo ? 32 + domain.length + workstation.length : 16];
            System.arraycopy(NTLMSSP_SIGNATURE, 0, type1, 0, 8);
            writeULong(type1, 8, 1);
            writeULong(type1, 12, flags);
            if (hostInfo) {
                writeSecurityBuffer(type1, 16, 32, domain);
                writeSecurityBuffer(type1, 24, 32 + domain.length, workstation);
            }

            Type2Message.writeULong(truncatedMessage, 8, Type2Message.NTLMSSP_TYPE2);
            // Set empty target name buffer
            Type2Message.writeUShort(truncatedMessage, 12, 0); // length
            Type2Message.writeUShort(truncatedMessage, 14, 0); // max length
            Type2Message.writeULong(truncatedMessage, 16, 48); // offset (past the end)
            // Set flags

        final int offset = readULong(src, index + 4);
        final byte[] buffer = new byte[length];
        System.arraycopy(src, offset, buffer, 0, length);
        return buffer;
    }

    static void writeULong(final byte[] dest, final int offset, final int ulong) {
        dest[offset] = (byte) (ulong & 0xff);
        dest[offset + 1] = (byte) (ulong >> 8 & 0xff);
        dest[offset + 2] = (byte) (ulong >> 16 & 0xff);

        final int offset = readULong(src, index + 4);
        final byte[] buffer = new byte[length];
        System.arraycopy(src, offset, buffer, 0, length);
        return buffer;
    }

    static void writeULong(final byte[] dest, final int offset, final int ulong) {
        dest[offset] = (byte) (ulong & 0xff);
        dest[offset + 1] = (byte) (ulong >> 8 & 0xff);
        dest[offset + 2] = (byte) (ulong >> 16 & 0xff);

            int pos = 0;

            System.arraycopy(NTLMSSP_SIGNATURE, 0, type1, 0, NTLMSSP_SIGNATURE.length);
            pos += NTLMSSP_SIGNATURE.length;

            writeULong(type1, pos, NTLMSSP_TYPE1);
            pos += 4;

            writeULong(type1, pos, flags);
            pos += 4;

            final int domOffOff = writeSecurityBuffer(type1, pos, domain);
            pos += 8;