var util = require("util");

var NodeGit = require("../");

var Blob = NodeGit.Blob;

var LookupWrapper = NodeGit.Utils.lookupWrapper;

var TreeEntry = NodeGit.TreeEntry;

var normalizeOptions = NodeGit.Utils.normalizeOptions;

var _filteredContent = Blob.filteredContent;

var _filter = Blob.prototype.filter;

/**

* Retrieves the blob pointed to by the oid

* @async

* @param {Repository} repo The repo that the blob lives in

* @param {String|Oid|Blob} id The blob to lookup

* @return {Blob}

*/

Blob.lookup = LookupWrapper(Blob);

/**

* Retrieve the content of the Blob.

*

* @return {Buffer} Contents as a buffer.

*/

Blob.prototype.content = function() {

return this.rawcontent().toBuffer(this.rawsize());

};

/**

* Retrieve the Blob's type.

*

* @return {Number} The filemode of the blob.

*/

Blob.prototype.filemode = function() {

var FileMode = TreeEntry.FILEMODE;

return this.isBinary() ? FileMode.EXECUTABLE : FileMode.BLOB;

};

/**

* Retrieve the Blob's content as String.

*

* @return {String} Contents as a string.

*/

Blob.prototype.toString = function() {

return this.content().toString();

};

/**

* Get a buffer with the filtered content of a blob.

*

* This applies filters as if the blob was being checked out to the

* working directory under the specified filename. This may apply

* CRLF filtering or other types of changes depending on the file

* attributes set for the blob and the content detected in it.

*

* @async

* @param asPath Path used for file attribute lookups, etc.

* @param opts Options to use for filtering the blob

* @return {Promise<string>}

*/

Blob.prototype.filter = function(asPath, opts) {

if (opts) {

opts = normalizeOptions(opts, NodeGit.BlobFilterOptions);

}

return _filter.call(this, asPath, opts);

};

Blob.filteredContent = util.deprecate(

_filteredContent,

"NodeGit.Blob.filteredContent is deprecated" +

" use NodeGit.Blob.prototype.filter instead."

);