/*
 * PhoneGap is available under *either* the terms of the modified BSD license *or* the
 * MIT License (2008). See http://opensource.org/licenses/alphabetical for full text.
 *  
 * Copyright (c) 2005-2010, Nitobi Software Inc.
 * Copyright (c) 2010, IBM Corporation
 */

/**
 * FileTransfer uploads a file to a remote server.
 */
function FileTransfer() {};

/**
 * FileUploadResult
 */
function FileUploadResult() {
    this.bytesSent = 0;
    this.responseCode = null;
    this.response = null;
};

/**
 * FileTransferError
 */
function FileTransferError() {
    this.code = null;
};

FileTransferError.FILE_NOT_FOUND_ERR = 1;
FileTransferError.INVALID_URL_ERR = 2;
FileTransferError.CONNECTION_ERR = 3;

/**
* Given an absolute file path, uploads a file on the device to a remote server 
* using a multipart HTTP request.
* @param filePath {String}           Full path of the file on the device
* @param server {String}             URL of the server to receive the file
* @param successCallback (Function}  Callback to be invoked when upload has completed
* @param errorCallback {Function}    Callback to be invoked upon error
* @param options {FileUploadOptions} Optional parameters such as file name and mimetype           
*/
FileTransfer.prototype.upload = function(filePath, server, successCallback, errorCallback, options) {

    // check for options
    var fileKey = null;
    var fileName = null;
    var mimeType = null;
    var params = null;
    if (options) {
        fileKey = options.fileKey;
        fileName = options.fileName;
        mimeType = options.mimeType;
        if (options.params) {
            params = options.params;
        }
        else {
            params = {};
        }
    }
    
    PhoneGap.exec(successCallback, errorCallback, 'FileTransfer', 'upload', [filePath, server, fileKey, fileName, mimeType, params]);
};

/**
 * Options to customize the HTTP request used to upload files.
 * @param fileKey {String}   Name of file request parameter.
 * @param fileName {String}  Filename to be used by the server. Defaults to image.jpg.
 * @param mimeType {String}  Mimetype of the uploaded file. Defaults to image/jpeg.
 * @param params {Object}    Object with key: value params to send to the server.
 */
function FileUploadOptions(fileKey, fileName, mimeType, params) {
    this.fileKey = fileKey || null;
    this.fileName = fileName || null;
    this.mimeType = mimeType || null;
    this.params = params || null;
};