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path: root/src/util/media-thumb-db.c
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/*
 * libmedia-thumbnail
 *
 * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
 *
 * Contact: Hyunjun Ko <zzoon.ko@samsung.com>
 *
 * Licensed 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 "media-thumb-db.h"
#include "media-thumb-util.h"
#include "media-thumb-debug.h"

#include <glib.h>
#include <string.h>
#include <unistd.h>

static __thread MediaDBHandle *db_handle;

sqlite3 *_media_thumb_db_get_handle()
{
	return db_handle;
}

int _media_thumb_get_type_from_db(sqlite3 *handle,
									const char *origin_path,
									int *type)
{
	int err = MS_MEDIA_ERR_NONE;
	char *path_string = NULL;
	char *query_string = NULL;
	sqlite3_stmt *stmt = NULL;

	thumb_dbg_slog("Origin path : %s", origin_path);

	if (handle == NULL) {
		thumb_err("DB handle is NULL");
		return MS_MEDIA_ERR_INVALID_PARAMETER;
	}

	path_string = sqlite3_mprintf("%s", origin_path);
	query_string = sqlite3_mprintf(SELECT_TYPE_BY_PATH, path_string);

	thumb_dbg("Query: %s", query_string);

	err = sqlite3_prepare_v2(handle, query_string, strlen(query_string), &stmt, NULL);

	sqlite3_free(query_string);
	sqlite3_free(path_string);

	if (SQLITE_OK != err) {
		thumb_err("prepare error [%s]", sqlite3_errmsg(handle));
		return MS_MEDIA_ERR_DB_INTERNAL;
	}

	err = sqlite3_step(stmt);
	if (err != SQLITE_ROW) {
		thumb_err("end of row [%s]", sqlite3_errmsg(handle));
		sqlite3_finalize(stmt);
		return MS_MEDIA_ERR_DB_NO_RECORD;
	}

	*type = sqlite3_column_int(stmt, 0);
	sqlite3_finalize(stmt);

	return MS_MEDIA_ERR_NONE;
}


int _media_thumb_get_wh_from_db(sqlite3 *handle,
									const char *origin_path,
									int *width,
									int *height)
{
	thumb_dbg_slog("Origin path : %s", origin_path);

	if (handle == NULL) {
		thumb_err("DB handle is NULL");
		return -1;
	}

	int err = -1;
	char *path_string = NULL;
	char *query_string = NULL;
	sqlite3_stmt *stmt = NULL;

	path_string = sqlite3_mprintf("%s", origin_path);
	query_string = sqlite3_mprintf(SELECT_WH_BY_PATH, path_string);

	thumb_dbg_slog("Query: %s", query_string);

	err = sqlite3_prepare_v2(handle, query_string, strlen(query_string), &stmt, NULL);

	sqlite3_free(query_string);
	sqlite3_free(path_string);

	if (SQLITE_OK != err) {
		thumb_err("prepare error [%s]", sqlite3_errmsg(handle));
		return -1;
	}

	err = sqlite3_step(stmt);
	if (err != SQLITE_ROW) {
		thumb_err("end of row [%s]", sqlite3_errmsg(handle));
		sqlite3_finalize(stmt);
		return -1;
	}

	*width = sqlite3_column_int(stmt, 0);
	*height = sqlite3_column_int(stmt, 1);
	sqlite3_finalize(stmt);

	return MS_MEDIA_ERR_NONE;
}

int _media_thumb_get_thumb_path_from_db(sqlite3 *handle,
									const char *origin_path,
									char *thumb_path,
									int max_length)
{
	thumb_dbg_slog("Origin path : %s", origin_path);

	if (handle == NULL) {
		thumb_err("DB handle is NULL");
		return -1;
	}

	int err = -1;
	char *path_string = NULL;
	char *query_string = NULL;
	sqlite3_stmt *stmt = NULL;

	path_string = sqlite3_mprintf("%s", origin_path);
	query_string = sqlite3_mprintf(SELECT_MEDIA_BY_PATH, path_string);

	thumb_dbg_slog("Query: %s", query_string);

	err = sqlite3_prepare_v2(handle, query_string, strlen(query_string), &stmt, NULL);

	sqlite3_free(query_string);
	sqlite3_free(path_string);

	if (SQLITE_OK != err) {
		thumb_err("prepare error [%s]", sqlite3_errmsg(handle));
		return -1;
	}

	err = sqlite3_step(stmt);
	if (err != SQLITE_ROW) {
		thumb_err("end of row [%s]", sqlite3_errmsg(handle));
		sqlite3_finalize(stmt);
		return -1;
	}

	if (sqlite3_column_text(stmt, 0))
		strncpy(thumb_path, (const char *)sqlite3_column_text(stmt, 0), max_length);
	else
		thumb_path[0] = '\0';

	sqlite3_finalize(stmt);

	return MS_MEDIA_ERR_NONE;
}

int _media_thumb_update_thumb_path_to_db(sqlite3 *handle,
									const char *origin_path,
									char *thumb_path,
									uid_t uid)
{
	int err = MS_MEDIA_ERR_NONE;
	char *path_string = NULL;
	char *thumbpath_string = NULL;
	char *query_string = NULL;

	if (handle == NULL) {
		thumb_err("DB handle is NULL");
		return MS_MEDIA_ERR_INVALID_PARAMETER;
	}

	path_string = sqlite3_mprintf("%s", origin_path);
	thumbpath_string = sqlite3_mprintf("%s", thumb_path);
	query_string = sqlite3_mprintf(UPDATE_THUMB_BY_PATH, thumbpath_string, path_string);

	err = media_db_request_update_db(query_string, uid);
	if (err != MS_MEDIA_ERR_NONE) {
		thumb_err("media_db_request_update_db failed : %d", err);
	} else {
		thumb_dbg("Query success");
	}

	sqlite3_free(path_string);
	sqlite3_free(thumbpath_string);
	sqlite3_free(query_string);

	return err;
}

int _media_thumb_update_wh_to_db(sqlite3 *handle,
								const char *origin_path,
								int width,
								int height,
								uid_t uid)
{
	int err = MS_MEDIA_ERR_NONE;
	char *path_string = NULL;
	char *query_string = NULL;

	if (handle == NULL) {
		thumb_err("DB handle is NULL");
		return MS_MEDIA_ERR_INVALID_PARAMETER;
	}

	path_string = sqlite3_mprintf("%s", origin_path);
	query_string = sqlite3_mprintf(UPDATE_WH_BY_PATH, width, height, path_string);

	err = media_db_request_update_db(query_string, uid);
	if (err != MS_MEDIA_ERR_NONE) {
		thumb_err("media_db_request_update_db failed : %d", err);
	} else {
		thumb_dbg("Query success");
	}

	sqlite3_free(path_string);
	sqlite3_free(query_string);

	return err;
}

int _media_thumb_update_thumb_path_wh_to_db(sqlite3 *handle,
								const char *origin_path,
								char *thumb_path,
								int width,
								int height,
								uid_t uid)
{
	int err = MS_MEDIA_ERR_NONE;
	char *path_string = NULL;
	char *query_string = NULL;

	if (handle == NULL) {
		thumb_err("DB handle is NULL");
		return -1;
	}

	path_string = sqlite3_mprintf("%s", origin_path);
	query_string = sqlite3_mprintf(UPDATE_THUMB_WH_BY_PATH, thumb_path, width, height, path_string);

	err = media_db_request_update_db(query_string, uid);
	if (err != MS_MEDIA_ERR_NONE) {
		thumb_err("media_db_request_update_db failed : %d", err);
	} else {
		thumb_dbg("Query success");
	}

	sqlite3_free(path_string);
	sqlite3_free(query_string);

	return err;
}

int _media_thumb_db_connect(uid_t uid)
{
	int err = MS_MEDIA_ERR_NONE;

	err = media_db_connect(&db_handle, uid, FALSE);
	if (err != MS_MEDIA_ERR_NONE) {
		thumb_err("media_db_connect failed: %d", err);
		db_handle = NULL;
		return err;
	}

	return MS_MEDIA_ERR_NONE;
}

int _media_thumb_db_disconnect()
{
	int err = MS_MEDIA_ERR_NONE;

	err = media_db_disconnect(db_handle);
	if (err != MS_MEDIA_ERR_NONE) {
		thumb_err("media_db_disconnect failed: %d", err);
		db_handle = NULL;
		return err;
	}

	db_handle = NULL;
	return err;
}

int _media_thumb_get_thumb_from_db(const char *origin_path,
								char *thumb_path,
								int max_length,
								int *need_update_db)
{
	int err = -1;

	//err = minfo_get_thumb_path(mb_svc_handle, origin_path, thumb_path, max_length);
	err = _media_thumb_get_thumb_path_from_db(db_handle, origin_path, thumb_path, max_length);
	if (err < 0) {
		thumb_warn("Original path doesn't exist in DB");
		return -1;
	}

	if (strlen(thumb_path) == 0) {
		thumb_warn("thumb path doesn't exist in DB");
		*need_update_db = 1;
		return -1;
	}

	thumb_dbg_slog("Thumb path in DB is %s", thumb_path);

	if (!g_file_test(thumb_path, G_FILE_TEST_EXISTS)) {
		thumb_warn("thumb path doesn't exist in file system");
		*need_update_db = 1;
		return -1;
	} else {
		thumb_dbg("This thumb path already exist");
	}

	return MS_MEDIA_ERR_NONE;
}

int _media_thumb_get_thumb_from_db_with_size(const char *origin_path,
								char *thumb_path,
								int max_length,
								int *need_update_db,
								int *width,
								int *height)
{
	int err = -1;

	//err = minfo_get_thumb_path(mb_svc_handle, origin_path, thumb_path, max_length);
	err = _media_thumb_get_thumb_path_from_db(db_handle, origin_path, thumb_path, max_length);
	if (err < 0) {
		thumb_warn("Original path doesn't exist in DB");
		return -1;
	}

	if (strlen(thumb_path) == 0) {
		thumb_warn("thumb path doesn't exist in DB");
		*need_update_db = 1;
		return -1;
	}

	thumb_dbg_slog("Thumb path in DB is %s", thumb_path);

	if (!g_file_test(thumb_path, G_FILE_TEST_EXISTS)) {
		thumb_warn("thumb path doesn't exist in file system");
		*need_update_db = 1;
		return -1;
	} else {
		thumb_dbg("This thumb path already exist");
		int orig_w = 0;
		int orig_h = 0;

		err = _media_thumb_get_wh_from_db(db_handle, origin_path, &orig_w, &orig_h);
		if (err < 0) {
			thumb_err("_media_thumb_get_wh_from_db failed : %d", err);
		} else {
			thumb_err("_media_thumb_get_wh_from_db Success ( w:%d, h:%d )", orig_w, orig_h);
			*width = orig_w;
			*height = orig_h;
		}
	}

	return MS_MEDIA_ERR_NONE;
}

int _media_thumb_update_db(const char *origin_path,
									char *thumb_path,
									int width,
									int height,
									uid_t uid)
{
	int err = MS_MEDIA_ERR_NONE;
	int media_type = THUMB_NONE_TYPE;

	err = _media_thumb_get_type_from_db(db_handle, origin_path, &media_type);
	if (err < 0) {
		thumb_err("_media_thumb_get_type_from_db (%s) failed: %d", origin_path, err);
		return err;
	}

#if 0
	err = _media_thumb_update_thumb_path_to_db(db_handle, origin_path, thumb_path);
	if (err < 0) {
		thumb_err("_media_thumb_update_thumb_path_to_db (%s) failed: %d", origin_path, err);
		return err;
	}

	if (media_type == THUMB_IMAGE_TYPE && width > 0 && height > 0) {
		err = _media_thumb_update_wh_to_db(db_handle, origin_path, width, height);
		if (err < 0) {
			thumb_err("_media_thumb_update_wh_to_db (%s) failed: %d", origin_path, err);
			return err;
		}
	}
#else
	if (media_type == THUMB_IMAGE_TYPE && width > 0 && height > 0) {
		err = _media_thumb_update_thumb_path_wh_to_db(db_handle, origin_path, thumb_path, width, height, uid);
		if (err < 0) {
			thumb_err("_media_thumb_update_wh_to_db (%s) failed: %d", origin_path, err);
			return err;
		}
	} else {
		err = _media_thumb_update_thumb_path_to_db(db_handle, origin_path, thumb_path, uid);
		if (err < 0) {
			thumb_err("_media_thumb_update_thumb_path_to_db (%s) failed: %d", origin_path, err);
			return err;
		}
	}
#endif

	thumb_dbg("_media_thumb_update_db success");

	return MS_MEDIA_ERR_NONE;
}