var gulp 		= require('gulp');
var plumber     = require('gulp-plumber');
var sftp 		= require('gulp-sftp');

var sftpInfo = function () {
	var info = {
		host: '172.0.0.1',
		port: '0',
		user: 'secter_user_login',
		pass: 'password',
		remotePath: '/place/remote/path/here',
	};

	return info;
}

var settingProject = {
	folder: 'relative/path/on/localhost/',
}

var extractRelativePath = function (filePath) {
	// Remove file name at the end
	var folder = filePath.substring(0, filePath.lastIndexOf('/'));
	var splitedPath = folder.split(settingProject.folder);
	return splitedPath[1];
}

var SFTPSettings = function(changedFile) {
	var newSettings = sftpInfo();
	var newRemotePath = newSettings.remotePath + '/' + extractRelativePath(changedFile);
	newSettings.remotePath = newRemotePath.replace('//', '/');
	return newSettings;
}

gulp.task('upload', function () {
	return gulp.src(settingProject.folder + '/**/*')
		.pipe(plumber())
		.pipe(sftp(sftpInfo()));
});

gulp.task('default', function () {
	var watcher = gulp.watch(settingProject.folder + '/**/*', function () {});
	var uploader = function(properties) {
		return gulp.src(properties.path)
			.pipe(plumber())
			.pipe(sftp(SFTPSettings(properties.path)));
	}

	watcher.on('added', function (event) { return uploader(event); });
	watcher.on('change', function (event) { return uploader(event); });
	// The delete event will need implement in gulp-rsync. The gulp-sftp is working wrong with it.
	// watcher.on('deleted', function (event) { return uploader(event); });
});