var util = require("util");
var NodeGit = require("../");
var Blob = NodeGit.Blob;
var LookupWrapper = NodeGit.Utils.lookupWrapper;
var TreeEntry = NodeGit.TreeEntry;

var _filteredContent = Blob.filteredContent;

/**
* 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();
};

Blob.filteredContent = util.deprecate(
  _filteredContent,
  "NodeGit.Blob.filteredContent is deprecated" +
  " use NodeGit.Blob.prototype.filter instead."
);
