/**
 * Nextcloud - passman
 *
 * @copyright Copyright (c) 2016, Sander Brand (brantje@gmail.com)
 * @copyright Copyright (c) 2016, Marcos Zuriaga Miguel (wolfi@wolfi.es)
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

// Importers should always start with this
/** global: PassmanImporter */
var PassmanImporter = PassmanImporter || {};
(function(window, $, PassmanImporter) {
	'use strict';
	PassmanImporter.passmanJson = {
		info: {
			name: 'Passman JSON',
			id: 'passmanJson',
			exportSteps: ['Export the item in passman as passman json, with all fields enabled']
		}
	};

	var FileService = null;
	var EncryptService = null;

	PassmanImporter.passmanJson.setRequiredServices = function (FileSvc, EncryptSvc) {
		FileService = FileSvc;
		EncryptService = EncryptSvc;
	};

	PassmanImporter.passmanJson.readFile = function (file_data) {
		/** global: C_Promise */
		return new C_Promise(
			async function(){
			var parseCustomFields = async function (customFields, credential){
				if (customFields.length > 0) {
					for (var cf = 0; cf < customFields.length; cf++) {
						if (customFields[cf].hasOwnProperty('clicktoshow')){
							/** compatibility mode for the old version of the custom fields import implementation */
							credential.custom_fields.push(
								{
									'label': customFields[cf].label,
									'value': customFields[cf].value,
									'secret': (customFields[cf].clicktoshow === '1'),
									'field_type': customFields[cf].clicktoshow === '1' ? 'password' : 'text'
								}
							);
						} else {
							if (customFields[cf].field_type === 'file'){
								var _file = {
									filename: customFields[cf].value.filename,
									size: customFields[cf].value.size,
									mimetype: customFields[cf].value.mimetype,
									data: customFields[cf].value.file_data
								};
								try {
									var file_result = await FileService.uploadFile(_file);
									delete file_result.file_data;
									file_result.filename = EncryptService.decryptString(file_result.filename);
									customFields[cf].value = file_result;
								} catch (e) {
									console.error("failed processing custom field file: " + _file.filename);
								}
							}

							credential.custom_fields.push(
								{
									'label': customFields[cf].label,
									'value': customFields[cf].value,
									'secret': customFields[cf].secret,
									'field_type': customFields[cf].field_type
								}
							);
						}
					}
				}
				return credential;
			};
			var parseFiles = async function (files, credential){
				if (files.length > 0) {
					for (var cf = 0; cf < files.length; cf++) {
						var _file = {
							filename: files[cf].filename,
							size: files[cf].size,
							mimetype: files[cf].mimetype,
							data: files[cf].file_data
						};
						try {
							var file_result = await FileService.uploadFile(_file);
							delete file_result.file_data;
							file_result.filename = EncryptService.decryptString(file_result.filename);
							credential.files.push(file_result);
						} catch (e) {
							console.error("failed processing file: " + _file.filename);
						}
					}
				}
				return credential;
			};

			var parsed_json = PassmanImporter.readJson(file_data);
			var credential_list = [];
			for (var i = 0; i < parsed_json.length; i++) {
				var item = parsed_json[i];
				var _credential = PassmanImporter.newCredential();
				_credential.icon = item.icon;
				_credential.label = item.label;
				_credential.username = item.username;
				_credential.password = item.password;
				_credential.email = item.email;
				_credential.url = item.url;
				_credential.tags = item.tags;
				_credential.description = item.description;
				//Check for custom fields
				if (item.hasOwnProperty('customFields')) {
					_credential = await parseCustomFields(item.customFields, _credential);
				}
				if (item.hasOwnProperty('custom_fields')) {
					_credential = await parseCustomFields(item.custom_fields, _credential);
				}
				//Check for files
				if (item.hasOwnProperty('files')) {
					_credential = await parseFiles(item.files, _credential);
				}
				// Check for otp
				if (item.hasOwnProperty('otp')) {
					if (item.otp) {
						_credential.otp = {
							'issuer': item.otp.issuer,
							'label': item.otp.label,
							'qr_uri': {
								'image': item.otp.qrCode,
								'qrData': ''
							},
							'secret': item.otp.secret,
							'type': item.otp.type
						};
					}
				}
				if(_credential.label){
					credential_list.push(_credential);
				}
				var progress = {
					percent: i/parsed_json.length*100,
					loaded: i,
					total: parsed_json.length
				};

				this.call_progress(progress);
			}
			this.call_then(credential_list);
		});
	};
})(window, $, PassmanImporter);