#include <sys/errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "wiredtiger.h"

static int __cursor_get_key(WT_CURSOR *cursor, ...)
{
	return ENOTSUP;
}

static int __cursor_get_value(WT_CURSOR *cursor, ...)
{
	return ENOTSUP;
}

static int __cursor_set_key(WT_CURSOR *cursor, ...)
{
	return ENOTSUP;
}

static int __cursor_set_value(WT_CURSOR *cursor, ...)
{
	return ENOTSUP;
}

static int __cursor_first(WT_CURSOR *cursor)
{
	return ENOTSUP;
}

static int __cursor_last(WT_CURSOR *cursor)
{
	return ENOTSUP;
}

static int __cursor_next(WT_CURSOR *cursor)
{
	return ENOTSUP;
}

static int __cursor_prev(WT_CURSOR *cursor)
{
	return ENOTSUP;
}

static int __cursor_search(WT_CURSOR *cursor, int *exact)
{
	return ENOTSUP;
}

static int __cursor_insert(WT_CURSOR *cursor)
{
	return ENOTSUP;
}

static int __cursor_update(WT_CURSOR *cursor)
{
	return ENOTSUP;
}

static int __cursor_del(WT_CURSOR *cursor)
{
	return ENOTSUP;
}

static int __cursor_close(WT_CURSOR *cursor, const char *config)
{
	free(cursor);
	return 0;
}

static int __session_close(WT_SESSION *session, const char *config)
{
	printf("WT_SESSION->close\n");
	free(session);
	return 0;
}

static int __session_open_cursor(WT_SESSION *session, const char *uri, const char *config, WT_CURSOR **cursorp)
{
	WT_CURSOR stdc = {
		NULL,
		NULL,
		NULL,
		__cursor_get_key,
		__cursor_get_value,
		__cursor_set_key,
		__cursor_set_value,
		__cursor_first,
		__cursor_last,
		__cursor_next,
		__cursor_prev,
		__cursor_search,
		__cursor_insert,
		__cursor_update,
		__cursor_del,
		__cursor_close,
	};
	WT_CURSOR *c = (WT_CURSOR *)malloc(sizeof(WT_CURSOR));

	printf("WT_SESSION->open_cursor\n");
	if (c == NULL)
		return ENOMEM;
	*c = stdc;
	c->session = session;
	c->keyfmt = c->valuefmt = "r";
	*cursorp = c;
	return 0;
}

static int __session_dup_cursor(WT_SESSION *, WT_CURSOR *cursor, const char *config, WT_CURSOR **dupp)
{
	return ENOTSUP;
}

static int __session_create_table(WT_SESSION *session, const char *name, const char *config)
{
	printf("WT_SESSION->create_table\n");
	return ENOTSUP;
}

static int __session_rename_table(WT_SESSION *session, const char *oldname, const char *newname, const char *config)
{
	return ENOTSUP;
}

static int __session_drop_table(WT_SESSION *session, const char *name, const char *config)
{
	return ENOTSUP;
}

static int __session_truncate_table(WT_SESSION *session, const char *name, WT_CURSOR *start, WT_CURSOR *end, const char *config)
{
	return ENOTSUP;
}

static int __session_verify_table(WT_SESSION *session, const char *name, const char *config)
{
	return 0;
}
static int __session_begin_transaction(WT_SESSION *session, const char *config)
{
	return ENOTSUP;
}

static int __session_commit_transaction(WT_SESSION *session)
{
	return ENOTSUP;
}

static int __session_rollback_transaction(WT_SESSION *session)
{
	return ENOTSUP;
}

static int __session_checkpoint(WT_SESSION *session, const char *config)
{
	return ENOTSUP;
}


static const char *__conn_get_home(WT_CONNECTION *conn)
{
	return NULL;
}

static int __conn_is_new(WT_CONNECTION *conn)
{
	return 0;
}

static int __conn_close(WT_CONNECTION *conn, const char *config)
{
	printf("WT_CONNECTION->close\n");
	free(conn);
	return 0;
}

static int __conn_open_session(WT_CONNECTION *connection, WT_ERROR_HANDLER *errhandler, const char *config, WT_SESSION **sessionp)
{
	WT_SESSION stds = {
		NULL,
		__session_close,
		__session_open_cursor,
		__session_dup_cursor,
		__session_create_table,
		__session_rename_table,
		__session_drop_table,
		__session_truncate_table,
		__session_verify_table,
		__session_begin_transaction,
		__session_commit_transaction,
		__session_rollback_transaction,
		__session_checkpoint,
	};
	WT_SESSION *s = (WT_SESSION *)malloc(sizeof(WT_SESSION));

	printf("WT_CONNECTION->open_session\n");
	if (s == NULL)
		return ENOMEM;
	*s = stds;
	s->connection = connection;
	*sessionp = s;
	return 0;
}


static int __conn_add_cursor_factory(WT_CONNECTION *connection, const char *prefix, WT_CURSOR_FACTORY *factory, const char *config)
{
	return ENOTSUP;
}

static int __conn_add_extension(WT_CONNECTION *connection, const char *path, const char *config)
{
	return ENOTSUP;
}

static int __conn_add_schema(WT_CONNECTION *connection, const char *name, WT_SCHEMA *schema, const char *config)
{
	return ENOTSUP;
}

int wiredtiger_open(const char *home, WT_ERROR_HANDLER *errhandler, const char *config, WT_CONNECTION **connectionp)
{
	WT_CONNECTION stdc = {
		__conn_add_cursor_factory,
		__conn_add_extension,
		__conn_add_schema,
		__conn_close,
		__conn_get_home,
		__conn_is_new,
		__conn_open_session
	};
	WT_CONNECTION *c = (WT_CONNECTION *)malloc(sizeof(WT_CONNECTION));

	printf("wiredtiger_open\n");
	if (c == NULL)
		return ENOMEM;
	*c = stdc;
	/* TODO: c->home = strdup(home); */
	*connectionp = c;
	return 0;
}

const char *wiredtiger_strerror(int err)
{
	return "unknown error";
}

const char *wiredtiger_version(int *majorp, int *minorp, int *patchp)
{
	*majorp = *minorp = 0;
	*patchp = 1;
	return "0.0.1";
}

int wiredtiger_struct_size(const char *fmt, ...)
{
	return 0;
}

int wiredtiger_struct_pack(void *buffer, int size, const char *fmt, ...)
{
	return 0;
}

int wiredtiger_struct_unpack(const void *buffer, int size, const char *fmt, ...)
{
	return 0;
}