#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

#include <sys/mman.h>

#include <sqlite3.h>
#include "sha256.h"

#include "lzma.h"

/* TODO pass in the outbuf ? */
/* or wrap lzma_stream_buffer_bound */
void *compresslzma(void *buf, size_t bufsize, size_t *len) {
	/* xz compress it */
	size_t outsize;
	void *outbuf;
	size_t outlen = 0;

	outsize = lzma_stream_buffer_bound(bufsize);
	outbuf = malloc(outsize);
	if (!outbuf) {
		*len = 0;
		return NULL;
	}
	/* TODO adjust encoding level for size */
	lzma_easy_buffer_encode(6, LZMA_CHECK_CRC64, NULL,
			buf, bufsize,
			outbuf, &outlen, outsize
			);
	*len = outlen;
	return outbuf;
}

static int callback(void *NotUsed, int argc, char **argv, char **azColName){
	int i;
	for(i=0; i<argc; i++){
		printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
	}
	printf("\n");
	return 0;
}

static char *create_table = "create table if not exists files (hash text primary key, size integer, compression text, content blob)";

struct dbh {
	sqlite3 *db;
	char *errmsg;
	int rc;
};