/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
#include "test_cborattr.h"

/*
 * Where we collect cbor data.
 */
static uint8_t test_cbor_buf[1024];
static int test_cbor_len;

/*
 * CBOR encoder data structures.
 */
static int test_cbor_wr(struct cbor_encoder_writer *, const char *, int);
static CborEncoder test_encoder;
static struct cbor_encoder_writer test_writer = {
    .write = test_cbor_wr
};

static int
test_cbor_wr(struct cbor_encoder_writer *cew, const char *data, int len)
{
    memcpy(test_cbor_buf + test_cbor_len, data, len);
    test_cbor_len += len;

    assert(test_cbor_len < sizeof(test_cbor_buf));
    return 0;
}

static void
test_encode_data(void)
{
    CborEncoder test_data;
    uint8_t data[4] = { 0, 1, 2 };

    cbor_encoder_init(&test_encoder, &test_writer, 0);

    cbor_encoder_create_map(&test_encoder, &test_data, CborIndefiniteLength);
    /*
     * a:22
     */
    cbor_encode_text_stringz(&test_data, "a");
    cbor_encode_uint(&test_data, 22);

    /*
     * b:-13
     */
    cbor_encode_text_stringz(&test_data, "b");
    cbor_encode_int(&test_data, -13);

    /*
     * c:0x000102
     */
    cbor_encode_text_stringz(&test_data, "c");
    cbor_encode_byte_string(&test_data, data, 3);
    cbor_encoder_close_container(&test_encoder, &test_data);

    /*
     * XXX add other data types to encode here.
     */

}

/*
 * Simple decoding.
 */
TEST_CASE(test_cborattr_decode_simple)
{
    int rc;
    uint64_t a_val = 0;
    int64_t b_val = 0;
    uint8_t c_data[4];
    size_t c_len;
    struct cbor_attr_t test_attrs[] = {
        [0] = {
            .attribute = "a",
            .type = CborAttrIntegerType,
            .addr.uinteger = &a_val,
            .nodefault = true
        },
        [1] = {
            .attribute = "b",
            .type = CborAttrIntegerType,
            .addr.integer = &b_val,
            .nodefault = true
        },
        [2] = {
            .attribute = "c",
            .type = CborAttrByteStringType,
            .addr.bytestring.data = c_data,
            .addr.bytestring.len = &c_len,
            .len = sizeof(c_data)
        },
        [3] = {
            .attribute = NULL
        }
    };

    test_encode_data();

    rc = cbor_read_flat_attrs(test_cbor_buf, test_cbor_len, test_attrs);
    TEST_ASSERT(rc == 0);
    TEST_ASSERT(a_val == 22);
    TEST_ASSERT(b_val == -13);
    TEST_ASSERT(c_len == 3);
    TEST_ASSERT(c_data[0] == 0 && c_data[1] == 1 && c_data[2] == 2);
}