% 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.


-define(uint2bin(I), binary:encode_unsigned(I, little)).
-define(bin2uint(I), binary:decode_unsigned(I, little)).
-define(bin2int(V), binary_to_integer(V)).
-define(METADATA_VERSION_KEY, <<16#FF, "/metadataVersion">>).

% Prefix Definitions

% Layer Level: (LayerPrefix, X, ...)

-define(CLUSTER_CONFIG, 0).
-define(ALL_DBS, 1).
-define(DB_HCA, 2).
-define(DELETED_DBS, 3).
-define(DBS, 15).
-define(EXPIRING_CACHE, 53).
-define(REPLICATION_IDS, 54).
-define(TX_IDS, 255).

% Cluster Level: (LayerPrefix, ?CLUSTER_CONFIG, X, ...)

-define(AEGIS, 0).

% Database Level: (LayerPrefix, ?DBS, DbPrefix, X, ...)

-define(DB_VERSION, 0).
-define(DB_CONFIG, 16).
-define(DB_STATS, 17).
-define(DB_ALL_DOCS, 18).
-define(DB_CHANGES, 19).
-define(DB_REVS, 20).
-define(DB_DOCS, 21).
-define(DB_LOCAL_DOCS, 22).
-define(DB_ATTS, 23).
-define(DB_VIEWS, 24).
-define(DB_LOCAL_DOC_BODIES, 25).
-define(DB_ATT_NAMES, 26).
-define(DB_SEARCH, 27).
-define(DB_AEGIS, 28).


% Versions

% 0 - Initial implementation
% 1 - Added attachment hash
% 2 - Added size information

-define(CURR_REV_FORMAT, 2).

% 0 - Adding local doc versions

-define(CURR_LDOC_FORMAT, 0).

% 0 - Attachment storage version

-define(CURR_ATT_STORAGE_VER, 0).

% Misc constants

-define(PDICT_DB_KEY, '$fabric_db_handle').
-define(PDICT_LAYER_CACHE, '$fabric_layer_id').
-define(PDICT_CHECKED_DB_IS_CURRENT, '$fabric_checked_db_is_current').
-define(PDICT_CHECKED_MD_IS_CURRENT, '$fabric_checked_md_is_current').
-define(PDICT_TX_ID_KEY, '$fabric_tx_id').
-define(PDICT_TX_RES_KEY, '$fabric_tx_result').
-define(PDICT_FOLD_ACC_STATE, '$fabric_fold_acc_state').
-define(PDICT_GRV_CACHE_ENABLED, '$fabric_grv_cache_enabled').
-define(PDICT_GRV_CACHE, '$fabric_grv_cache').

% Let's keep these in ascending order
-define(TRANSACTION_TOO_OLD, 1007).
-define(FUTURE_VERSION, 1009).
-define(COMMIT_UNKNOWN_RESULT, 1021).
-define(TRANSACTION_CANCELLED, 1025).
-define(TRANSACTION_TOO_LARGE, 2101).


-define(DEFAULT_BINARY_CHUNK_SIZE, 100000).