/*
 * Copyright 2024 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include "internal/qlog.h"
#include "testutil.h"

/*
 * Unfortunately, this must be expressed as an array and not a string literal as
 * ANSI C only guarantees support for up to 509 characters in a string literal.
 */
static const char expected[] = {
     30, '{', '"', 'q', 'l', 'o', 'g', '_', 'v', 'e', 'r', 's', 'i', 'o', 'n',
    '"', ':', '"', '0', '.', '3', '"', ',', '"', 'q', 'l', 'o', 'g', '_', 'f',
    'o', 'r', 'm', 'a', 't', '"', ':', '"', 'J', 'S', 'O', 'N', '-', 'S', 'E',
    'Q', '"', ',', '"', 't', 'i', 't', 'l', 'e', '"', ':', '"', 't', 'e', 's',
    't', ' ', 't', 'i', 't', 'l', 'e', '"', ',', '"', 'd', 'e', 's', 'c', 'r',
    'i', 'p', 't', 'i', 'o', 'n', '"', ':', '"', 't', 'e', 's', 't', ' ', 'd',
    'e', 's', 'c', 'r', 'i', 'p', 't', 'i', 'o', 'n', '"', ',', '"', 't', 'r',
    'a', 'c', 'e', '"', ':', '{', '"', 'c', 'o', 'm', 'm', 'o', 'n', '_', 'f',
    'i', 'e', 'l', 'd', 's', '"', ':', '{', '"', 't', 'i', 'm', 'e', '_', 'f',
    'o', 'r', 'm', 'a', 't', '"', ':', '"', 'd', 'e', 'l', 't', 'a', '"', ',',
    '"', 'p', 'r', 'o', 't', 'o', 'c', 'o', 'l', '_', 't', 'y', 'p', 'e', '"',
    ':', '[', '"', 'Q', 'U', 'I', 'C', '"', ']', ',', '"', 'g', 'r', 'o', 'u',
    'p', '_', 'i', 'd', '"', ':', '"', 't', 'e', 's', 't', ' ', 'g', 'r', 'o',
    'u', 'p', ' ', 'I', 'D', '"', ',', '"', 's', 'y', 's', 't', 'e', 'm', '_',
    'i', 'n', 'f', 'o', '"', ':', '{', '"', 'p', 'r', 'o', 'c', 'e', 's', 's',
    '_', 'i', 'd', '"', ':', '1', '2', '3', '}', '}', ',', '"', 'v', 'a', 'n',
    't', 'a', 'g', 'e', '_', 'p', 'o', 'i', 'n', 't', '"', ':', '{', '"', 't',
    'y', 'p', 'e', '"', ':', '"', 'c', 'l', 'i', 'e', 'n', 't', '"', ',', '"',
    'n', 'a', 'm', 'e', '"', ':', '"', 'O', 'p', 'e', 'n', 'S', 'S', 'L', '/',
    'x', '.', 'y', '.', 'z', '"', '}', '}', '}',  10,  30, '{', '"', 'n', 'a',
    'm', 'e', '"', ':', '"', 't', 'r', 'a', 'n', 's', 'p', 'o', 'r', 't', ':',
    'p', 'a', 'c', 'k', 'e', 't', '_', 's', 'e', 'n', 't', '"', ',', '"', 'd',
    'a', 't', 'a', '"', ':', '{', '"', 'f', 'i', 'e', 'l', 'd', '1', '"', ':',
    '"', 'f', 'o', 'o', '"', ',', '"', 'f', 'i', 'e', 'l', 'd', '2', '"', ':',
    '"', 'b', 'a', 'r', '"', ',', '"', 'f', 'i', 'e', 'l', 'd', '3', '"', ':',
    '4', '2', ',', '"', 'f', 'i', 'e', 'l', 'd', '4', '"', ':', '"', '1', '1',
    '5', '2', '9', '2', '1', '5', '0', '4', '6', '0', '6', '8', '4', '6', '9',
    '7', '6', '"', ',', '"', 'f', 'i', 'e', 'l', 'd', '5', '"', ':', '"', '1',
    '8', '4', '4', '6', '7', '4', '4', '0', '7', '3', '7', '0', '9', '5', '5',
    '1', '6', '1', '5', '"', ',', '"', 'f', 'i', 'e', 'l', 'd', '6', '"', ':',
    'f', 'a', 'l', 's', 'e', ',', '"', 'f', 'i', 'e', 'l', 'd', '7', '"', ':',
    't', 'r', 'u', 'e', ',', '"', 'f', 'i', 'e', 'l', 'd', '8', '"', ':', '"',
    '0', '1', 'a', 'f', '"', ',', '"', 'f', 'i', 'e', 'l', 'd', '9', '"', ':',
    '"', '5', '5', '"', ',', '"', 's', 'u', 'b', 'g', 'r', 'o', 'u', 'p', '"',
    ':', '{', '"', 'f', 'i', 'e', 'l', 'd', '1', '0', '"', ':', '"', 'b', 'a',
    'z', '"', '}', ',', '"', 'a', 'r', 'r', 'a', 'y', '"', ':', '[', '"', 'a',
    '"', ',', '"', 'b', '"', ']', '}', ',', '"', 't', 'i', 'm', 'e', '"', ':',
    '1', '7', '0', '6', '5', '3', '1', '1', '7', '0', '0', '0', '}',  10,  30,
    '{', '"', 'n', 'a', 'm', 'e', '"', ':', '"', 't', 'r', 'a', 'n', 's', 'p',
    'o', 'r', 't', ':', 'p', 'a', 'c', 'k', 'e', 't', '_', 's', 'e', 'n', 't',
    '"', ',', '"', 'd', 'a', 't', 'a', '"', ':', '{', '"', 'f', 'i', 'e', 'l',
    'd', '1', '"', ':', '"', 'b', 'a', 'r', '"', '}', ',', '"', 't', 'i', 'm',
    'e', '"', ':', '1', '0', '0', '0', '}',  10
};

static const unsigned char bin_buf[] = {
    0x01, 0xaf
};

static OSSL_TIME last_time;

static OSSL_TIME now(void *arg)
{
    OSSL_TIME t = last_time;

    last_time = ossl_time_add(t, ossl_ms2time(1000));
    return t;
}

static int test_qlog(void)
{
    int testresult = 0;
    QLOG_TRACE_INFO qti = {0};
    QLOG *qlog;
    BIO *bio;
    char *buf = NULL;
    size_t buf_len = 0;

    last_time = ossl_time_from_time_t(170653117);

    qti.odcid.id_len        = 1;
    qti.odcid.id[0]         = 0x55;
    qti.title               = "test title";
    qti.description         = "test description";
    qti.group_id            = "test group ID";
    qti.override_process_id = 123;
    qti.now_cb              = now;
    qti.override_impl_name  = "OpenSSL/x.y.z";

    if (!TEST_ptr(qlog = ossl_qlog_new(&qti)))
        goto err;

    if (!TEST_true(ossl_qlog_set_event_type_enabled(qlog, QLOG_EVENT_TYPE_transport_packet_sent, 1)))
        goto err;

    if (!TEST_ptr(bio = BIO_new(BIO_s_mem())))
        goto err;

    if (!TEST_true(ossl_qlog_set_sink_bio(qlog, bio)))
        goto err;

    QLOG_EVENT_BEGIN(qlog, transport, packet_sent)
        QLOG_STR("field1", "foo");
        QLOG_STR_LEN("field2", "bar", 3);
        QLOG_I64("field3", 42);
        QLOG_I64("field4", 1ULL << 60);
        QLOG_U64("field5", UINT64_MAX);
        QLOG_BOOL("field6", 0);
        QLOG_BOOL("field7", 1);
        QLOG_BIN("field8", bin_buf, sizeof(bin_buf));
        QLOG_CID("field9", &qti.odcid);
        QLOG_BEGIN("subgroup")
            QLOG_STR("field10", "baz");
        QLOG_END()
        QLOG_BEGIN_ARRAY("array")
            QLOG_STR(NULL, "a");
            QLOG_STR(NULL, "b");
        QLOG_END_ARRAY()
    QLOG_EVENT_END()

    /* not enabled */
    QLOG_EVENT_BEGIN(qlog, transport, packet_received)
        QLOG_STR("field1", "foo");
    QLOG_EVENT_END()

    /* test delta time calculation */
    QLOG_EVENT_BEGIN(qlog, transport, packet_sent)
        QLOG_STR("field1", "bar");
    QLOG_EVENT_END()

    if (!TEST_true(ossl_qlog_flush(qlog)))
        goto err;

    buf_len = BIO_get_mem_data(bio, &buf);
    if (!TEST_size_t_gt(buf_len, 0))
        goto err;

    if (!TEST_mem_eq(buf, buf_len, expected, sizeof(expected)))
        goto err;

    testresult = 1;
err:
    ossl_qlog_free(qlog);
    return testresult;
}

struct filter_spec {
    const char *filter;
    int         expect_ok;
    uint32_t    expect_event_type;
    int         expect_event_enable;
};

static const struct filter_spec filters[] = {
    { "*", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 1 },
    { "-*", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 0 },
    { "+*", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 1 },
    { "* *", 1,
      QLOG_EVENT_TYPE_transport_packet_received, 1 },
    { "-* +*", 1,
      QLOG_EVENT_TYPE_transport_packet_received, 1 },
    { "-* +* -*", 1,
      QLOG_EVENT_TYPE_transport_packet_received, 0 },
    { "  *", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 1 },
    { " ", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 0 },
    { "", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 0 },
    { "transport:packet_sent", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 1 },
    { "transport:packet_sent", 1,
      QLOG_EVENT_TYPE_transport_packet_received, 0 },
    { "* -transport:packet_sent", 1,
      QLOG_EVENT_TYPE_transport_packet_received, 1 },
    { "* -transport:packet_sent", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 0 },
    { "unknown:event", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 0 },
    { "unknown:event +transport:packet_sent", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 1 },
    { "unknown:event transport:*", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 1 },
    { "unknown:event +transport:* -transport:packet_sent", 1,
      QLOG_EVENT_TYPE_transport_packet_received, 1 },
    { "unknown:event transport:* -transport:packet_sent", 1,
      QLOG_EVENT_TYPE_transport_packet_sent, 0 },
    { "* -transport:*", 1,
      QLOG_EVENT_TYPE_connectivity_connection_started, 1 },
    { "* -transport:*", 1,
      QLOG_EVENT_TYPE_transport_parameters_set, 0 },
    { "&", 0 },
    { "event_name_without_category", 0 },
    { "event_name_with_@badchar:foo", 0 },
    { "event_name_with_badchar:f@oo", 0 },
    { "category:", 0 },
    { ":name", 0 },
    { ":", 0 },
    { "**", 0 },
    { "foo:bar*", 0 },
    { "foo:*bar", 0 },
    { "foo*:bar", 0 },
    { "*foo:bar", 0 },
};

static int test_qlog_filter(int idx)
{
    int testresult = 0;
    QLOG_TRACE_INFO qti = {0};
    QLOG *qlog;

    qti.odcid.id_len        = 1;
    qti.odcid.id[0]         = 0x55;

    if (!TEST_ptr(qlog = ossl_qlog_new(&qti)))
        goto err;

    if (!TEST_int_eq(ossl_qlog_set_filter(qlog, filters[idx].filter),
                     filters[idx].expect_ok))
        goto err;

    if (filters[idx].expect_event_type != QLOG_EVENT_TYPE_NONE)
        if (!TEST_int_eq(ossl_qlog_enabled(qlog, filters[idx].expect_event_type),
                         filters[idx].expect_event_enable))
            goto err;

    testresult = 1;
err:
    ossl_qlog_free(qlog);
    return testresult;
}

int setup_tests(void)
{
    ADD_TEST(test_qlog);
    ADD_ALL_TESTS(test_qlog_filter, OSSL_NELEM(filters));
    return 1;
}