/* Tests the decoding of all types. Currently only in the 'required' variety.
 * This is the counterpart of test_encode3.
 * Run e.g. ./test_encode3 | ./test_decode3
 */

#include <stdio.h>
#include <string.h>
#include <pb_decode.h>
#include "alltypes.pb.h"

#define TEST(x) if (!(x)) { \
    printf("Test " #x " failed.\n"); \
    return false; \
    }

/* This function is called once from main(), it handles
   the decoding and checks the fields. */
bool check_alltypes(pb_istream_t *stream)
{
    AllTypes alltypes = {};
    
    if (!pb_decode(stream, AllTypes_fields, &alltypes))
        return false;
    
    TEST(alltypes.req_int32         == 1001);
    TEST(alltypes.req_int64         == 1002);
    TEST(alltypes.req_uint32        == 1003);
    TEST(alltypes.req_uint64        == 1004);
    TEST(alltypes.req_sint32        == 1005);
    TEST(alltypes.req_sint64        == 1006);
    TEST(alltypes.req_bool          == true);
    
    TEST(alltypes.req_fixed32       == 1008);
    TEST(alltypes.req_sfixed32      == 1009);
    TEST(alltypes.req_float         == 1010.0f);
    
    TEST(alltypes.req_fixed64       == 1011);
    TEST(alltypes.req_sfixed64      == 1012);
    TEST(alltypes.req_double        == 1013.0f);
    
    TEST(strcmp(alltypes.req_string, "1014") == 0);
    TEST(alltypes.req_bytes.size == 4);
    TEST(memcmp(alltypes.req_bytes.bytes, "1015", 4) == 0);
    TEST(strcmp(alltypes.req_submsg.substuff1, "1016") == 0);
    TEST(alltypes.req_submsg.substuff2 == 1016);
    TEST(alltypes.req_enum == MyEnum_Truth);
    
    TEST(alltypes.rep_int32_count == 5 && alltypes.rep_int32[4] == 2001 && alltypes.rep_int32[0] == 0);
    TEST(alltypes.rep_int64_count == 5 && alltypes.rep_int64[4] == 2002 && alltypes.rep_int64[0] == 0);
    TEST(alltypes.rep_uint32_count == 5 && alltypes.rep_uint32[4] == 2003 && alltypes.rep_uint32[0] == 0);
    TEST(alltypes.rep_uint64_count == 5 && alltypes.rep_uint64[4] == 2004 && alltypes.rep_uint64[0] == 0);
    TEST(alltypes.rep_sint32_count == 5 && alltypes.rep_sint32[4] == 2005 && alltypes.rep_sint32[0] == 0);
    TEST(alltypes.rep_sint64_count == 5 && alltypes.rep_sint64[4] == 2006 && alltypes.rep_sint64[0] == 0);
    TEST(alltypes.rep_bool_count == 5 && alltypes.rep_bool[4] == true && alltypes.rep_bool[0] == false);
    
    TEST(alltypes.rep_fixed32_count == 5 && alltypes.rep_fixed32[4] == 2008 && alltypes.rep_fixed32[0] == 0);
    TEST(alltypes.rep_sfixed32_count == 5 && alltypes.rep_sfixed32[4] == 2009 && alltypes.rep_sfixed32[0] == 0);
    TEST(alltypes.rep_float_count == 5 && alltypes.rep_float[4] == 2010.0f && alltypes.rep_float[0] == 0.0f);
    
    TEST(alltypes.rep_fixed64_count == 5 && alltypes.rep_fixed64[4] == 2011 && alltypes.rep_fixed64[0] == 0);
    TEST(alltypes.rep_sfixed64_count == 5 && alltypes.rep_sfixed64[4] == 2012 && alltypes.rep_sfixed64[0] == 0);
    TEST(alltypes.rep_double_count == 5 && alltypes.rep_double[4] == 2013.0 && alltypes.rep_double[0] == 0.0);
    
    TEST(alltypes.rep_string_count == 5 && strcmp(alltypes.rep_string[4], "2014") == 0 && alltypes.rep_string[0][0] == '\0');
    TEST(alltypes.rep_bytes_count == 5 && alltypes.rep_bytes[4].size == 4 && alltypes.rep_bytes[0].size == 0);
    TEST(memcmp(alltypes.rep_bytes[4].bytes, "2015", 4) == 0);

    TEST(alltypes.rep_submsg_count == 5);
    TEST(strcmp(alltypes.rep_submsg[4].substuff1, "2016") == 0 && alltypes.rep_submsg[0].substuff1[0] == '\0');
    TEST(alltypes.rep_submsg[4].substuff2 == 2016 && alltypes.rep_submsg[0].substuff2 == 0);
    
    TEST(alltypes.rep_enum_count == 5 && alltypes.rep_enum[4] == MyEnum_Truth && alltypes.rep_enum[0] == MyEnum_Zero);
    
    
    TEST(alltypes.end == 1099);
    
    return true;
}

int main()
{
    /* Read the data into buffer */
    uint8_t buffer[512];
    size_t count = fread(buffer, 1, sizeof(buffer), stdin);
    
    /* Construct a pb_istream_t for reading from the buffer */
    pb_istream_t stream = pb_istream_from_buffer(buffer, count);
    
    /* Decode and print out the stuff */
    if (!check_alltypes(&stream))
    {
        printf("Parsing failed.\n");
        return 1;
    } else {
        return 0;
    }
}