var assert = require("assert");

var path = require("path");

var local = path.join.bind(path, __dirname);

var promisify = require("promisify-node");

var Promise = require("nodegit-promise");

// Have to wrap exec, since it has a weird callback signature.

var exec = promisify(function(command, opts, callback) {

return require("child_process").exec(command, opts, callback);

});

describe("Signature", function() {

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

var Repository = NodeGit.Repository;

var Signature = NodeGit.Signature;

var reposPath = local("../repos/workdir");

var name = "Bob Gnarley";

var email = "gnarlee@bob.net";

var arbitraryDate = 123456789;

var timezoneOffset = 60;

it("can be created at an arbitrary time", function() {

var create = Signature.create;

var signature = create(name, email, arbitraryDate, timezoneOffset);

assert.equal(signature.name(), name);

assert.equal(signature.email(), email);

assert.equal(signature.when().time(), arbitraryDate);

assert.equal(signature.when().offset(), 60);

});

it("can be created now", function() {

var signature = Signature.now(name, email);

var now = new Date();

var when = signature.when();

var diff = Math.abs(when.time() - now/1000);

assert.equal(signature.name(), name);

assert.equal(signature.email(), email);

assert(diff <= 1);

// libgit2 does its timezone offsets backwards from javascript

assert.equal(when.offset(), -now.getTimezoneOffset());

});

it("can get a default signature when no user name is set", function() {

var savedUserName;

var savedUserEmail;

var cleanUp = function() {

return exec("git config --global user.name \"" + savedUserName + "\"")

.then(function() {

return exec(

"git config --global user.email \"" +

savedUserEmail +

"\"");

});

};

return exec("git config --global user.name")

.then(function(userName) {

savedUserName = userName.trim();

return exec("git config --global user.email");

})

.then(function(userEmail) {

savedUserEmail = userEmail.trim();

return exec("git config --global --unset user.name");

})

.then(function() {

return exec("git config --global --unset user.email");

})

.then(function() {

return Repository.open(reposPath);

})

.then(function(repo) {

var sig = repo.defaultSignature();

assert.equal(sig.name(), "unknown");

assert.equal(sig.email(), "unknown@unknown.com");

})

.then(function() {

cleanUp();

})

.catch(function(e) {

cleanUp()

.then(function() {

return Promise.reject(e);

});

});

});

});