'use strict';

/**
 * @ngdoc function
 * @name passmanApp.controller:MainCtrl
 * @description
 * # MainCtrl
 * Controller of the passmanApp
 * This file is part of passman, licensed under AGPLv3
 */
angular.module('passmanApp')
	.controller('ShareCtrl', ['$scope', 'VaultService', 'CredentialService', 'SettingsService', '$location', '$routeParams', 'ShareService', function ($scope, VaultService, CredentialService, SettingsService, $location, $routeParams, ShareService) {
		$scope.active_vault = VaultService.getActiveVault();

		$scope.tabs = [{
			title: 'Share with users and groups',
			url: 'views/partials/forms/share_credential/basics.html',
		}, {
			title: 'Share link',
			url: 'views/partials/forms/share_credential/expire_settings.html',
			color: 'green'
		}];
		$scope.currentTab = {
			title: 'General',
			url: 'views/partials/forms/share_credential/basics.html'
		};

		$scope.onClickTab = function (tab) {
			$scope.currentTab = tab;
		};

		$scope.isActiveTab = function (tab) {
			return tab.url == $scope.currentTab.url;
		};

		if (!SettingsService.getSetting('defaultVault') || !SettingsService.getSetting('defaultVaultPass')) {
			if (!$scope.active_vault) {
				$location.path('/')
			}
		} else {
			if (SettingsService.getSetting('defaultVault') && SettingsService.getSetting('defaultVaultPass')) {
				var _vault = angular.copy(SettingsService.getSetting('defaultVault'));
				_vault.vaultKey = angular.copy(SettingsService.getSetting('defaultVaultPass'));
				VaultService.setActiveVault(_vault);
				$scope.active_vault = _vault;

			}
		}
		var storedCredential = SettingsService.getSetting('share_credential');
		if (!storedCredential) {
			$location.path('/vault/' + $routeParams.vault_id);
		} else {
			$scope.storedCredential = CredentialService.decryptCredential(angular.copy(storedCredential));
		}
		if ($scope.active_vault) {
			$scope.$parent.selectedVault = true;
		}
		$scope.cancel = function(){
			SettingsService.setSetting('share_credential', null);
			$location.path('/vault/' + $scope.storedCredential.vault_id);
		};

		console.log($location);
		$scope.share_link = $location.$$protocol + '://'+ $location.$$host + OC.generateUrl('apps/passman/share/public#') + $scope.storedCredential.guid;
		$scope.share_settings = {
			linkSharing:{
				enabled: false,
				settings:{
					type: 'null', // can be date or view_amount or null (for no expire)
					amount: null
				}
			},
			credentialSharedWithUserAndGroup:[

			],
			cypher_progress:{
				done:0,
				total:0
			}
		};

		$scope.accessLevels = [
			{
				label: 'Can edit',
				value: '3'
			},
			{
				label: 'Can view',
				value: '1'
			}
		];

		$scope.inputSharedWith = [];
		$scope.selectedAccessLevel = '1';

		$scope.searchUsers = function($query){
			 return ShareService.search($query)
		};

		$scope.shareWith = function(shareWith, selectedAccessLevel){
            //@TODO Improve this so we can add, edit and remove users and permissions.
			$scope.inputSharedWith = [];
			if(shareWith.length > 0) {
				for (var i = 0; i < shareWith.length; i++) {
			        // Avoid adding twice the same user.
					var obj = {
						userId: shareWith[i].uid,
						displayName: shareWith[i].text,
						type: shareWith[i].type,
						accessLevel: selectedAccessLevel
					};
					if($scope.share_settings.credentialSharedWithUserAndGroup.indexOf(obj) === -1){
						$scope.share_settings.credentialSharedWithUserAndGroup.push(obj)
					}
				}
			}
		};

		$scope.applyShare = function(){
			$scope.share_settings.cypher_progress.percent = 0;
			$scope.share_settings.cypher_progress.done = 0;
			$scope.share_settings.cypher_progress.total = 0;
			$scope.share_settings.cypher_progress.times = [];
			$scope.share_settings.cypher_progress.times_total = [];

			ShareService.generateSharedKey(20).then(function(key){
				console.log(key);

				var encryptedSharedCredential = ShareService.encryptSharedCredential($scope.storedCredential, key);
				CredentialService.updateCredential(encryptedSharedCredential, true);

				var list = $scope.share_settings.credentialSharedWithUserAndGroup;
				console.log(list);
				for (var i = 0; i < list.length; i++){
					var iterator = i; 	// Keeps it available inside the promises callback

					if (list[i].type == "user") {
						ShareService.getVaultsByUser(list[i].userId).then(function (data) {
							$scope.share_settings.cypher_progress.total += data.length;

							list[iterator].vaults = data;
							console.log(data);
							var start = new Date().getTime() / 1000;

							ShareService.cypherRSAStringWithPublicKeyBulkAsync(list[iterator].vaults, key)
                            .progress(function (data) {
                                $scope.share_settings.cypher_progress.done ++;
                                $scope.share_settings.cypher_progress.percent = $scope.share_settings.cypher_progress.done / $scope.share_settings.cypher_progress.total * 100;
                                $scope.$digest();
                            })
                            .then(function (result) {
                                console.log(result);
                                console.log("Took: " + ((new Date().getTime() / 1000) - start) + "s to cypher the string for user [" + data[0].user_id + "]");
                                $scope.share_settings.cypher_progress.times.push({
                                    time: ((new Date().getTime() / 1000) - start),
                                    user: data[0].user_id
                                });
                                list[iterator].vaults = result;
                                $scope.uploadChanges(list[iterator]);
                                $scope.$digest();
                            });
						});
					}
				}
			})
		};

		$scope.uploadChanges = function(user) {
            ShareService.shareWithUser(storedCredential, user);
            //@TODO Encrypt the credential once all users have the sharing keys.
        };

		$scope.calculate_total_time = function(){
			$scope.share_settings.cypher_progress.times = $scope.share_settings.cypher_progress.times || [];
			var total = 0;
			for (var i = 0; i < $scope.share_settings.cypher_progress.times.length; i++){
				total += $scope.share_settings.cypher_progress.times[i].time;
			}
			return total;
		}
	}]);