/* b64.c - Generates a C string symbol stored as Base64
 * ============================================================
 * Under CC0, as its a rather useful example of a KappaChat tool.
 * See LICENSE for more information about Parsee's licensing. */

#include <Cytoplasm/HashMap.h>
#include <Cytoplasm/Stream.h>
#include <Cytoplasm/Base64.h>
#include <Cytoplasm/Memory.h>
#include <Cytoplasm/Array.h>

#include <stdlib.h>

int
Main(Array *args, HashMap *env)
{
    char *file = ArrayGet(args, 1);
    char *symbol = ArrayGet(args, 2);
    char *out = ArrayGet(args, 3);

    Stream *inStream;
    uint8_t *bytes;
    size_t len;
    int o;

    char *b64;
    Stream *outStream;

    if (!file || !symbol || !out)
    {
        return EXIT_FAILURE;
    }
    
    inStream = StreamOpen(file, "rb");
    bytes = NULL;
    len = 0;
    while ((o = StreamGetc(inStream)) != EOF)
    {
        bytes = Realloc(bytes, len + 1);
        bytes[len++] = o;
    }
    StreamClose(inStream);

    b64 = Base64Encode((const char *) bytes, len);
    Free(bytes);
    outStream = StreamOpen(out, "w");
    StreamPrintf(outStream, "const char %s[] = ", symbol);
    StreamPrintf(outStream, "\"%s\";\n", b64);
    Free(b64);
    StreamFlush(outStream);
    StreamClose(outStream); 

    return EXIT_SUCCESS;
}