'use strict';

/* global angular */
/* global $ */
/* global async */
/* global RSTATES */
/* global ISTATES */
/* global ERROR */
/* global Chart */
/* global Clipboard */
/* global SECRET_PLACEHOLDER */
/* global APP_TYPES, STORAGE_PROVIDERS, BACKUP_FORMATS */
/* global REGIONS_S3, REGIONS_WASABI, REGIONS_DIGITALOCEAN, REGIONS_EXOSCALE, REGIONS_SCALEWAY, REGIONS_LINODE, REGIONS_OVH, REGIONS_IONOS, REGIONS_UPCLOUD, REGIONS_VULTR, REGIONS_HETZNER */
/* global onAppClick */

angular.module('Application').controller('AppController', ['$scope', '$location', '$translate', '$timeout', '$interval', '$route', '$routeParams', 'Client', function ($scope, $location, $translate, $timeout, $interval, $route, $routeParams, Client) {
    $scope.s3Regions = REGIONS_S3;
    $scope.wasabiRegions = REGIONS_WASABI;
    $scope.doSpacesRegions = REGIONS_DIGITALOCEAN;
    $scope.exoscaleSosRegions = REGIONS_EXOSCALE;
    $scope.scalewayRegions = REGIONS_SCALEWAY;
    $scope.linodeRegions = REGIONS_LINODE;
    $scope.ovhRegions = REGIONS_OVH;
    $scope.ionosRegions = REGIONS_IONOS;
    $scope.upcloudRegions = REGIONS_UPCLOUD;
    $scope.vultrRegions = REGIONS_VULTR;
    $scope.contaboRegions = REGIONS_VULTR;
    $scope.hetznerRegions = REGIONS_HETZNER;

    $scope.storageProviders = STORAGE_PROVIDERS;

    $scope.formats = BACKUP_FORMATS;

    // Avoid full reload on path change
    // https://stackoverflow.com/a/22614334
    // reloadOnUrl: false in $routeProvider did not work!
    var lastRoute = $route.current;
    $scope.$on('$locationChangeSuccess', function (/* event */) {
        if (lastRoute.$$route.originalPath === $route.current.$$route.originalPath) {
            $route.current = lastRoute;
        }
    });

    var appId = $routeParams.appId;
    if (!appId) return $location.path('/apps');

    $scope.view = '';
    $scope.app = null;
    $scope.config = Client.getConfig();
    $scope.user = Client.getUserInfo();

    // note: these variables will remain empty for operators
    $scope.domains = [];
    $scope.volumes = [];
    $scope.groups = [];
    $scope.users = [];
    $scope.backupConfig = null;
    $scope.diskUsage = -1;
    $scope.diskUsageDate = 0;

    $scope.APP_TYPES = APP_TYPES;
    $scope.HOST_PORT_MIN = 1;
    $scope.HOST_PORT_MAX = 65535;
    $scope.ROBOTS_DISABLE_INDEXING_TEMPLATE = '# Disable search engine indexing\n\nUser-agent: *\nDisallow: /';

    $scope.setView = function (view, skipViewShow) {
        if ($scope.view === view) return;

        $route.updateParams({ view: view });
        if (!skipViewShow) $scope[view].show();
        $scope.view = view;
    };

    $scope.stopAppTask = function (taskId) {
        Client.stopTask(taskId, function (error) {
            // we can ignore a call trying to cancel an already done task
            if (error && error.statusCode !== 409) Client.error(error);
        });
    };

    $scope.appPostInstallConfirm = {
        app: {},
        message: '',

        show: function (app) {
            $scope.appPostInstallConfirm.app = app;
            $scope.appPostInstallConfirm.message = app.manifest.postInstallMessage;

            $('#appPostInstallConfirmModal').modal('show');

            return false; // prevent propagation and default
        },

        submit: function () {
            $scope.appPostInstallConfirm.app.pendingPostInstallConfirmation = false;
            delete localStorage['confirmPostInstall_' + $scope.appPostInstallConfirm.app.id];

            $('#appPostInstallConfirmModal').modal('hide');
        }
    };

    $scope.postInstallMessage = {
        openApp: false,

        show: function (openApp) {
            $scope.postInstallMessage.openApp = !!openApp;

            if (!$scope.app.manifest.postInstallMessage) return;
            $('#postInstallModal').modal('show');
        },

        submit: function () {
            $scope.app.pendingPostInstallConfirmation = false;
            delete localStorage['confirmPostInstall_' + $scope.app.id];

            $('#postInstallModal').modal('hide');
        }
    };

    $scope.getAppBackupDownloadLink = function (backup) {
        return Client.getAppBackupDownloadLink($scope.app.id, backup.id);
    };

    $scope.onAppClick = function (app, $event) { onAppClick(app, $event, true /* always operator */, $scope); };

    $scope.sftpInfo = {
        show: function () {
            $('#sftpInfoModal').modal('show');
        }
    };

    $scope.info = {
        showDoneChecklist: false,
        hasOldChecklist: false,

        notes: {
            busy: true,
            busySave: false,
            editing: false,
            content: '',
            placeholder: 'Add admin notes here...',

            edit: function () {
                $scope.info.notes.content = $scope.app.notes === null ? $scope.app.manifest.postInstallMessage : $scope.app.notes;
                $scope.info.notes.editing = true;

                setTimeout(function () { document.getElementById('adminNotesTextarea').focus(); }, 1);
            },

            dismiss: function () {
                $scope.info.notes.content = $scope.app.notes === null ? $scope.app.manifest.postInstallMessage : $scope.app.notes;
                $scope.info.notes.editing = false;
            },

            submit: function () {
                $scope.info.notes.busySave = true;

                // skip saving if unchanged from postInstall
                if ($scope.info.notes.content === $scope.app.manifest.postInstallMessage) {
                    $scope.info.notes.busySave = false;
                    $scope.info.notes.editing = false;
                    return;
                }

                Client.configureApp($scope.app.id, 'notes', { notes: $scope.info.notes.content }, function (error) {
                    if (error) return console.error('Failed to save notes.', error);

                    refreshApp($scope.app.id, function (error) {
                        if (error) return Client.error(error);

                        $scope.info.notes.content = $scope.app.notes === null ? $scope.app.manifest.postInstallMessage : $scope.app.notes;
                        $scope.info.notes.busySave = false;
                        $scope.info.notes.editing = false;
                    });
                });
            }
        },

        show: function () {
            $scope.info.hasOldChecklist = !!Object.keys($scope.app.checklist).find((k) => { return $scope.app.checklist[k].acknowledged; });
            $scope.info.notes.content = $scope.app.notes === null ? $scope.app.manifest.postInstallMessage : $scope.app.notes;
            $scope.info.notes.editing = false;
            $scope.info.notes.busy = false;
        },

        checklistAck(item, key) {
            item.acknowledged = true;
            // item.acknowledged = !item.acknowledged;

            Client.ackAppChecklistItem($scope.app.id, key, item.acknowledged, function (error) {
                if (error) return console.error('Failed to ack checklist item.', error);
                $scope.info.hasOldChecklist = true;

                refreshApp($scope.app.id);
            });
        }
    };

    $scope.display = {
        busy: false,
        error: {},
        success: false,

        tags: '',
        label: '',
        icon: { data: null },

        iconUrl: function () {
            if (!$scope.app) return '';

            if ($scope.display.icon.data === '__original__') { // user clicked reset
                return $scope.app.iconUrl + '&original=true';
            } else if ($scope.display.icon.data) { // user uploaded icon
                return $scope.display.icon.data;
            } else { // current icon
                return $scope.app.iconUrl;
            }
        },

        resetCustomIcon: function () {
            $scope.display.icon.data = '__original__';
        },

        showCustomIconSelector: function () {
            $('#iconFileInput').click();
        },

        show: function () {
            var app = $scope.app;

            $scope.display.error = {};

            // translate for tag-input
            $scope.display.tags = app.tags ? app.tags.join(' ') : '';

            $scope.display.label = $scope.app.label || '';
            $scope.display.icon = { data: null };
        },

        submit: function () {
            $scope.display.busy = true;
            $scope.display.error = {};

            function done(error) {
                if (error) Client.error(error);

                $scope.displayForm.$setPristine();
                $scope.display.success = true;

                refreshApp($scope.app.id, function (error) {
                    if (error) Client.error(error);

                    $scope.display.show(); // "refresh" view with latest data

                    $timeout(function () { $scope.display.busy = false; }, 1000);
                });
            }

            var NOOP = function (next) { return next(); };
            var configureLabel = $scope.display.label === $scope.app.label ? NOOP : Client.configureApp.bind(null, $scope.app.id, 'label', { label: $scope.display.label });

            configureLabel(function (error) {
                if (error) return done(error);

                var tags = $scope.display.tags.split(' ').map(function (t) { return t.trim(); }).filter(function (t) { return !!t; });

                var configureTags = angular.equals(tags, $scope.app.tags) ? NOOP : Client.configureApp.bind(null, $scope.app.id, 'tags', { tags: tags });

                configureTags(function (error) {
                    if (error) return done(error);

                    // skip if icon is unchanged
                    if ($scope.display.icon.data === null) return done();

                    var icon;
                    if ($scope.display.icon.data === '__original__') { // user reset the icon
                        icon = '';
                    } else if ($scope.display.icon.data) { // user loaded custom icon
                        icon = $scope.display.icon.data.replace(/^data:image\/[a-z]+;base64,/, '');
                    }

                    Client.configureApp($scope.app.id, 'icon', { icon: icon }, function (error) {
                        if (error) return done(error);
                        done();
                    });
                });
            });
        }
    };

    $scope.location = {
        busy: false,
        error: {},
        domainCollisions: [],

        domain: null, // object and not the string
        subdomain: '',
        secondaryDomains: {},
        redirectDomains: [],
        aliasDomains: [],
        ports: {},
        portsEnabled: {},
        portInfo: {},

        addRedirectDomain: function (event) {
            event.preventDefault();
            $scope.location.redirectDomains.push({
                domain: $scope.domains.filter(function (d) { return d.domain === $scope.app.domain; })[0], // pre-select app's domain by default
                subdomain: ''
            });

            setTimeout(function () {
                document.getElementById('redirectDomainsInput-' + ($scope.location.redirectDomains.length-1)).focus();
            }, 200);
        },

        delRedirectDomain: function (event, index) {
            event.preventDefault();
            $scope.location.redirectDomains.splice(index, 1);
        },

        addAliasDomain: function (event) {
            event.preventDefault();
            $scope.location.aliasDomains.push({
                domain: $scope.domains.filter(function (d) { return d.domain === $scope.app.domain; })[0], // pre-select app's domain by default
                subdomain: ''
            });

            setTimeout(function () {
                document.getElementById('aliasDomainsInput-' + ($scope.location.aliasDomains.length-1)).focus();
            }, 200);
        },

        delAliasDomain: function (event, index) {
            event.preventDefault();
            $scope.location.aliasDomains.splice(index, 1);
        },

        show: function () {
            var app = $scope.app;

            $scope.location.error = {};
            $scope.location.domainCollisions = [];
            $scope.location.subdomain = app.subdomain;
            $scope.location.domain = $scope.domains.filter(function (d) { return d.domain === app.domain; })[0];

            // for compat, secondary domain can be empty after an upgrade. so it may not exist in app.secondaryDomains
            $scope.location.secondaryDomains = {};
            var httpPorts = app.manifest.httpPorts || {};
            for (var env2 in httpPorts) {
                $scope.location.secondaryDomains[env2] = {
                    subdomain: httpPorts[env2].defaultValue || '',
                    domain: $scope.location.domain
                };
            }

            // now fill secondaryDomains with real values, if it exists
            app.secondaryDomains.forEach(function (sd) {
                $scope.location.secondaryDomains[sd.environmentVariable] = {
                    subdomain: sd.subdomain,
                    domain: $scope.domains.filter(function (d) { return d.domain === sd.domain; })[0]
                };
            });

            $scope.location.portInfo = angular.extend({}, app.manifest.tcpPorts, app.manifest.udpPorts); // Portbinding map only for information
            $scope.location.redirectDomains = app.redirectDomains.map(function (a) { return { subdomain: a.subdomain, domain: $scope.domains.filter(function (d) { return d.domain === a.domain; })[0] };});
            $scope.location.aliasDomains = app.aliasDomains.map(function (a) { return { subdomain: a.subdomain, domain: $scope.domains.filter(function (d) { return d.domain === a.domain; })[0] };});

            // fill the portBinding structures. There might be holes in the app.portBindings, which signalizes a disabled port
            for (var env in $scope.location.portInfo) {
                if (app.portBindings && app.portBindings[env]) {
                    $scope.location.ports[env] = app.portBindings[env].hostPort;
                    $scope.location.portsEnabled[env] = true;
                } else {
                    $scope.location.ports[env] = $scope.location.portInfo[env].defaultValue || 0;
                    $scope.location.portsEnabled[env] = false;
                }
            }
        },

        submit: function (overwriteDns) {
            $('#domainCollisionsModal').modal('hide');

            $scope.location.busy = true;
            $scope.location.error = {};
            $scope.location.domainCollisions = [];

            var secondaryDomains = {};
            for (var env2 in $scope.location.secondaryDomains) {
                secondaryDomains[env2] = {
                    subdomain: $scope.location.secondaryDomains[env2].subdomain,
                    domain: $scope.location.secondaryDomains[env2].domain.domain
                };
            }

            // only use enabled ports
            var ports = {};
            for (var env in $scope.location.ports) {
                if ($scope.location.portsEnabled[env]) {
                    ports[env] = $scope.location.ports[env];
                }
            }

            var data = {
                overwriteDns: !!overwriteDns,
                subdomain: $scope.location.subdomain,
                domain: $scope.location.domain.domain,
                ports: ports,
                secondaryDomains: secondaryDomains,
                redirectDomains: $scope.location.redirectDomains.map(function (a) { return { subdomain: a.subdomain, domain: a.domain.domain };}),
                aliasDomains: $scope.location.aliasDomains.map(function (a) { return { subdomain: a.subdomain, domain: a.domain.domain };})
            };

            // pre-flight only for changed domains
            var domains = [];
            if ($scope.app.domain !== data.domain || $scope.app.subdomain !== data.subdomain) domains.push({ subdomain: data.subdomain, domain: data.domain, type: 'primary' });
            Object.keys(data.secondaryDomains).forEach(function (env) {
                var subdomain = data.secondaryDomains[env].subdomain, domain = data.secondaryDomains[env].domain;
                if ($scope.app.secondaryDomains.some(function (d) { return d.domain === domain && d.subdomain === subdomain; })) return;
                domains.push({ subdomain: subdomain, domain: domain, type: 'secondary' });
            });
            data.redirectDomains.forEach(function (a) {
                if ($scope.app.redirectDomains.some(function (d) { return d.domain === a.domain && d.subdomain === a.subdomain; })) return;
                domains.push({ subdomain: a.subdomain, domain: a.domain, type: 'redirect' });
            });
            data.aliasDomains.forEach(function (a) {
                if ($scope.app.aliasDomains.some(function (d) { return d.domain === a.domain && d.subdomain === a.subdomain; })) return;
                domains.push({ subdomain: a.subdomain, domain: a.domain, type: 'alias' });
            });

            var canConfigure = true;

            async.eachSeries(domains, function (domain, callback) {
                if (overwriteDns) return callback();

                Client.checkDNSRecords(domain.domain, domain.subdomain, function (error, result) {
                    if (error) return callback(error);
                    if (result.error) {
                        if (domain.type === 'primary') {
                            $scope.location.error.location = domain.domain + ' ' + result.error.message;
                        } else if (domain.type === 'alias') {
                            $scope.location.error.aliasDomains = domain.domain + ' ' + result.error.message;
                        } else {
                            $scope.location.error.redirectDomains = domain.domain + ' ' + result.error.message;
                        }
                        $scope.location.busy = false;
                        canConfigure = false;
                    } else if (result.needsOverwrite) {
                        $scope.location.domainCollisions.push(domain);
                        canConfigure = false;
                    }

                    callback();
                });
            }, function (error) {
                if (error) {
                    $scope.location.busy = false;
                    return Client.error(error);
                }

                if (!canConfigure) {
                    $scope.location.busy = false;
                    return $('#domainCollisionsModal').modal('show');
                }

                Client.configureApp($scope.app.id, 'location', data, function (error) {
                    if (error && (error.statusCode === 409 || error.statusCode === 400)) {
                        var errorMessage = error.message.toLowerCase();
                        if (errorMessage.indexOf('location') !== -1) {
                            if (errorMessage.indexOf('primary') !== -1) {
                                $scope.location.error.location = error.message;
                                $scope.locationForm.$setPristine();
                            } else if (errorMessage.indexOf('secondary') !== -1) {
                                $scope.location.error.secondaryDomain = error.message;
                            } else if (errorMessage.indexOf('redirect') !== -1) {
                                $scope.location.error.redirectDomains = error.message;
                            } else if (errorMessage.indexOf('alias') !== -1) {
                                $scope.location.error.aliasDomains = error.message;
                            }
                        } else if (errorMessage.indexOf('port') !== -1) {
                            $scope.location.error.port = error.message;
                        } else {
                            $scope.location.error.location = error.message; // fallback
                        }

                        $scope.location.busy = false;
                        return;
                    }
                    if (error) return Client.error(error);

                    refreshApp($scope.app.id, function (error) {
                        if (error) return Client.error(error);

                        $scope.locationForm.$setPristine();
                        $timeout(function () { $scope.location.busy = false; }, 1000);
                    });
                });
            });
        }
    };

    $scope.access = {
        busy: false,
        error: {},
        success: false,

        ftp: false,
        ssoAuth: false,
        accessRestrictionOption: 'any',
        accessRestrictionOptionCur: 'any',
        accessRestriction: { users: [], groups: [] },

        operators: { users: [], groups: [] },

        isAccessRestrictionValid: function () {
            var tmp = $scope.access.accessRestriction;
            return !!(tmp.users.length || tmp.groups.length);
        },

        show: function () {
            var app = $scope.app;

            $scope.access.error = {};
            $scope.access.ftp = app.manifest.addons.localstorage && app.manifest.addons.localstorage.ftp;
            $scope.access.ssoAuth = (app.manifest.addons['ldap'] || app.manifest.addons['oidc'] || app.manifest.addons['proxyAuth']) && app.sso;
            $scope.access.accessRestrictionOption = app.accessRestriction ? 'groups' : 'any';
            $scope.access.accessRestrictionOptionCur = app.accessRestriction ? 'groups' : 'any';
            $scope.access.accessRestriction = { users: [], groups: [] };

            $scope.access.operators = { users: [], groups: [] };

            var userSet, groupSet;

            if (app.accessRestriction) {
                userSet = {};
                app.accessRestriction.users.forEach(function (uid) { userSet[uid] = true; });
                $scope.users.forEach(function (u) { if (userSet[u.id] === true) $scope.access.accessRestriction.users.push(u); });

                groupSet = {};
                if (app.accessRestriction.groups) app.accessRestriction.groups.forEach(function (gid) { groupSet[gid] = true; });
                $scope.groups.forEach(function (g) { if (groupSet[g.id] === true) $scope.access.accessRestriction.groups.push(g); });
            }

            if (app.operators) {
                userSet = {};
                app.operators.users.forEach(function (uid) { userSet[uid] = true; });
                $scope.users.forEach(function (u) { if (userSet[u.id] === true) $scope.access.operators.users.push(u); });

                groupSet = {};
                if (app.operators.groups) app.operators.groups.forEach(function (gid) { groupSet[gid] = true; });
                $scope.groups.forEach(function (g) { if (groupSet[g.id] === true) $scope.access.operators.groups.push(g); });
            }
        },

        submit: function () {
            $scope.access.busy = true;
            $scope.access.error = {};

            var accessRestriction = null;
            if ($scope.access.accessRestrictionOption === 'groups') {
                accessRestriction = { users: [], groups: [] };
                accessRestriction.users = $scope.access.accessRestriction.users.map(function (u) { return u.id; });
                accessRestriction.groups = $scope.access.accessRestriction.groups.map(function (g) { return g.id; });
            }

            var operators = null;
            if ($scope.access.operators.users.length || $scope.access.operators.groups.length) {
                operators = { users: [], groups: [] };
                operators.users = $scope.access.operators.users.map(function (u) { return u.id; });
                operators.groups = $scope.access.operators.groups.map(function (g) { return g.id; });
            }

            async.series([
                function (callback) {
                    if ($scope.access.accessRestrictionOption === $scope.access.accessRestrictionOptionCur && !$scope.accessForm.accessUsersSelect.$dirty && !$scope.accessForm.accessGroupsSelect.$dirty) return callback();

                    Client.configureApp($scope.app.id, 'access_restriction', { accessRestriction: accessRestriction }, callback);
                },
                function (callback) {
                    if (!$scope.accessForm.operatorsUsersSelect.$dirty && !$scope.accessForm.operatorsGroupsSelect.$dirty) return callback();

                    Client.configureApp($scope.app.id, 'operators', { operators: operators }, callback);
                }
            ], function (error) {
                if (error) return Client.error(error);

                $scope.accessForm.$setPristine();

                $scope.access.accessRestrictionOptionCur = $scope.access.accessRestrictionOption;
                $timeout(function () {
                    $scope.access.success = true;
                    $scope.access.busy = false;
                }, 3000);
            });
        }
    };

    $scope.resources = {
        error: {},

        busy: false,
        currentMemoryLimit: 0,
        memoryLimit: 0, // RAM
        memoryTicks: [],

        currentCpuQuota: 0,
        cpuQuota: 0,
        devices: '',

        show: function () {
            var app = $scope.app;
            $scope.resources.busy = true;

            $scope.resources.error = {};
            $scope.resources.currentMemoryLimit = app.memoryLimit || app.manifest.memoryLimit || (256 * 1024 * 1024);

            Client.memory(function (error, result) {
                if (error) console.error(error);

                // create ticks starting from manifest memory limit. the memory limit here is just RAM
                $scope.resources.memoryTicks = [];
                // we max system memory and current app memory for the case where the user configured the app on another server with more resources
                var nearest256m = Math.ceil(Math.max(result.memory, $scope.resources.currentMemoryLimit) / (256*1024*1024)) * 256 * 1024 * 1024;
                var startTick = app.manifest.memoryLimit || (256 * 1024 * 1024);

                // code below ensure we atleast have 2 ticks to keep the slider usable
                $scope.resources.memoryTicks.push(startTick); // start tick
                for (var i = startTick * 2; i < nearest256m; i *= 2) {
                    $scope.resources.memoryTicks.push(i);
                }
                $scope.resources.memoryTicks.push(nearest256m); // end tick
            });

            // for firefox widget update
            $timeout(function() {
                $scope.resources.currentCpuQuota = $scope.resources.cpuQuota = app.cpuQuota;
                $scope.resources.memoryLimit = $scope.resources.currentMemoryLimit;
                $scope.resources.busy = false;
            }, 500);

            $scope.resources.devices = Object.keys(app.devices).join(', ');
        },

        submitMemoryLimit: function () {
            $scope.resources.busy = true;
            $scope.resources.error = {};

            const tmp = parseInt($scope.resources.memoryLimit);
            const memoryLimit = tmp === $scope.resources.memoryTicks[0] ? 0 : tmp;

            Client.configureApp($scope.app.id, 'memory_limit', { memoryLimit }, function (error) {
                if (error && error.statusCode === 400) {
                    $scope.resources.busy = false;
                    $scope.resources.error.memoryLimit = true;
                    return;
                }
                if (error) return Client.error(error);

                $scope.resources.currentMemoryLimit = $scope.resources.memoryLimit;

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.resources.busy = false; }, 1000);
                });
            });
        },

        submitCpuQuota: function () {
            $scope.resources.busy = true;
            $scope.resources.error = {};

            Client.configureApp($scope.app.id, 'cpu_quota', { cpuQuota: parseInt($scope.resources.cpuQuota) }, function (error) {
                if (error) return Client.error(error);

                $scope.resources.currentCpuQuota = $scope.resources.cpuQuota;

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.resources.busy = false; }, 1000);
                });
            });
        },

        submitDevices: function () {
            $scope.resources.busy = true;
            $scope.resources.error = {};

            const devices = {};
            $scope.resources.devices.split(',').forEach(d => {
                if (!d.trim()) return;
                devices[d.trim()] = {};
            });

            Client.configureApp($scope.app.id, 'devices', { devices }, function (error) {
                if (error && error.statusCode === 400) {
                    $scope.resources.error.devices = error.message;
                    return $scope.resources.busy = false;
                } else if (error) {
                    return Client.error(error);
                }

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.resources.busy = false; }, 1000);
                });
            });
        },
    };

    $scope.services = {
        error: {},

        busy: false,
        enableTurn: '1', // curse of radio buttons
        enableRedis: '1',

        show: function () {
            var app = $scope.app;

            $scope.services.error = {};
            $scope.services.enableTurn = app.enableTurn ? '1' : '0';
            $scope.services.enableRedis = app.enableRedis ? '1' : '0';
        },

        submitTurn: function () {
            $scope.services.busy = true;
            $scope.services.error = {};

            Client.configureApp($scope.app.id, 'turn', { enable: $scope.services.enableTurn === '1' }, function (error) {
                if (error && error.statusCode === 400) {
                    $scope.services.busy = false;
                    $scope.services.error.turn = true;
                    return;
                }
                if (error) return Client.error(error);

                $timeout(function () { $scope.services.busy = false; }, 1000);
            });
        },

        submitRedis: function () {
            $scope.services.busy = true;
            $scope.services.error = {};

            Client.configureApp($scope.app.id, 'redis', { enable: $scope.services.enableRedis === '1' }, function (error) {
                if (error && error.statusCode === 400) {
                    $scope.services.busy = false;
                    $scope.services.error.redis = true;
                    return;
                }
                if (error) return Client.error(error);

                $timeout(function () { $scope.services.busy = false; }, 1000);
            });
        },
    };

    $scope.storage = {
        error: {},

        busy: false,

        busyDataDir: false,
        storageVolumeId: null,
        storageVolumePrefix: '',

        location: null,
        locationOptions: [],

        busyBinds: false,
        mounts: [], // { volume, readOnly }

        show: function () {
            var app = $scope.app;

            $scope.storage.error = {};
            $scope.storage.storageVolumeId = app.storageVolumeId;
            $scope.storage.storageVolumePrefix = app.storageVolumePrefix || '';
            $scope.storage.mounts = [];

            $scope.storage.locationOptions = [
                { id: 'default', type: 'default', displayName: 'Default - /home/yellowtent/appsdata/' + app.id },
            ];

            $scope.volumes.forEach(function (volume) {
                $scope.storage.locationOptions.push({ id: volume.id, type: 'volume', value: volume.id, displayName: 'Volume - ' + volume.name, mountType: volume.mountType });
            });

            $scope.storage.location = $scope.storage.locationOptions.find(function (l) { return l.id === (app.storageVolumeId || 'default'); });

            app.mounts.forEach(function (mount) { // { volumeId, readOnly }
                var volume = $scope.volumes.find(function (v) { return v.id === mount.volumeId; });
                $scope.storage.mounts.push({ volume: volume, readOnly: mount.readOnly ? 'true' : 'false' });
            });
        },

        submitDataDir: function () {
            $scope.storage.busyDataDir = true;
            $scope.storage.error = {};

            var data = { storageVolumeId: null, storageVolumePrefix: null };
            if ($scope.storage.location.id !== 'default') {
                data.storageVolumeId = $scope.storage.location.id;
                data.storageVolumePrefix = $scope.storage.storageVolumePrefix;
            }

            Client.configureApp($scope.app.id, 'storage', data, function (error) {
                if (error && error.statusCode === 400) {
                    $scope.storage.error.storageVolumePrefix = error.message;
                    $scope.storage.busyDataDir = false;
                    return;
                } else if (error) {
                    Client.error(error);
                    $scope.storage.busyDataDir = false;
                    return;
                }

                $scope.storageDataDirForm.$setPristine();

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.storage.busyDataDir = false; }, 1000);
                });
            });
        },

        addMount: function (event) {
            event.preventDefault();
            $scope.storage.mounts.push({
                volume: $scope.volumes[0],
                readOnly: true
            });
        },

        delMount: function (event, index) {
            event.preventDefault();
            $scope.storage.mounts.splice(index, 1);
        },

        submitMounts: function () {
            $scope.storage.busyMounts = true;
            $scope.storage.error = {};

            var data = [];
            $scope.storage.mounts.forEach(function (mount) {
                data.push({ volumeId: mount.volume.id, readOnly: mount.readOnly === 'true' });
            });

            Client.configureApp($scope.app.id, 'mounts', { mounts: data }, function (error) {
                if (error && error.statusCode === 400) {
                    $scope.storage.error.mounts = error.message;
                    $scope.storage.busyMounts = false;
                    return;
                }
                if (error) return Client.error(error);

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.storage.busyMounts = false; }, 1000);
                });
            });
        }
    };

    $scope.graphs = {
        error: {},
        busy: true,

        period: 6,
        memoryChart: null,
        diskChart: null,

        blockReadTotal: 0,
        blockWriteTotal: 0,
        networkReadTotal: 0,
        networkWriteTotal: 0,

        setPeriod: function (hours) {
            $scope.graphs.period = hours;
            $scope.graphs.show();
        },

        show: function () {
            $scope.graphs.busy = true;
            // in minutes
            var timePeriod = $scope.graphs.period * 60;

            // keep in sync with graphs.js
            var timeBucketSizeMinutes = timePeriod > (24 * 60) ? (6*60) : 5;
            var steps = Math.floor(timePeriod/timeBucketSizeMinutes);

            var labels = new Array(steps).fill(0);
            labels = labels.map(function (v, index) {
                var dateTime = new Date(Date.now() - ((timePeriod - (index * timeBucketSizeMinutes)) * 60 * 1000));

                if ($scope.graphs.period > 24) {
                    return dateTime.toLocaleDateString();
                } else {
                    return dateTime.toLocaleTimeString();
                }
            });

            var borderColors = [ '#2196F3', '#FF6384' ];
            var backgroundColors = [ '#82C4F844', '#FF63844F' ];

            function fillGraph(canvasId, contents, chartPropertyName, divisor, max, format, formatDivisor, stepSize) {
                if (!contents || !contents[0]) return; // no data available yet

                var datasets = [];

                contents.forEach(function (content, index) {

                    // fill holes with previous value
                    var cur = 0;
                    content.data.forEach(function (d) {
                        if (d[0] === null) d[0] = cur;
                        else cur = d[0];
                    });

                    var datapoints = Array(steps).map(function () { return '0'; });

                    // walk backwards and fill up the datapoints
                    content.data.reverse().forEach(function (d, index) {
                        datapoints[datapoints.length-1-index] = (d[0] / divisor).toFixed(2);
                        // return parseInt((d[0] / divisor).toFixed(2));
                    });

                    datasets.push({
                        label: content.label,
                        backgroundColor: backgroundColors[index],
                        borderColor: borderColors[index],
                        borderWidth: 1,
                        radius: 0,
                        data: datapoints,
                        cubicInterpolationMode: 'monotone',
                        tension: 0.4
                    });
                });

                var graphData = {
                    labels: labels,
                    datasets: datasets
                };

                var options = {
                    responsive: true,
                    maintainAspectRatio: true,
                    aspectRatio: 2.5,
                    animation: false,
                    plugins: {
                        legend: {
                            display: false
                        }
                    },
                    interaction: {
                        intersect: false,
                        mode: 'index',
                    },
                    scales: {
                        x: {
                            ticks: { autoSkipPadding: 50, maxRotation: 0 }
                        },
                        y: {
                            ticks: { maxTicksLimit: 6 },
                            min: 0,
                            beginAtZero: true
                        }
                    }
                };

                if (format) options.scales.y.ticks.callback = function (value) {
                    if (!formatDivisor) return value + ' ' + format;
                    return (value/formatDivisor).toLocaleString('en-US', { maximumFractionDigits: 6 }) + ' ' + format;
                };
                if (max) options.scales.y.max = max;
                if (stepSize) options.scales.y.ticks.stepSize = stepSize;

                var ctx = $(canvasId).get(0).getContext('2d');

                if ($scope.graphs[chartPropertyName]) $scope.graphs[chartPropertyName].destroy();
                $scope.graphs[chartPropertyName] = new Chart(ctx, { type: 'line', data: graphData, options: options });
            }

            Client.getAppGraphs(appId, timePeriod, function (error, result) {
                if (error) return console.error(error);

                var currentMemoryLimit = $scope.app.memoryLimit || $scope.app.manifest.memoryLimit || 0;
                var maxGraphMemory = currentMemoryLimit < (512 * 1024 * 1024) ? (512 * 1024 * 1024) : currentMemoryLimit;
                var cpuCount = result.cpuCount;
                var ioDivisor = 1000 * 1000;

                $scope.graphs.blockReadTotal = (result.blockReadTotal / ioDivisor / 1000).toFixed(2) + ' MB';
                $scope.graphs.blockWriteTotal = (result.blockWriteTotal / ioDivisor / 1000).toFixed(2) + ' MB';
                $scope.graphs.networkReadTotal = (result.networkReadTotal / ioDivisor / 1000).toFixed(2) + ' MB';
                $scope.graphs.networkWriteTotal = (result.networkWriteTotal / ioDivisor / 1000).toFixed(2) + ' MB';

                fillGraph('#graphsMemoryChart', [{ data: result.memory, label: 'Memory' }], 'memoryChart', 1024 * 1024, maxGraphMemory / 1024 / 1024, 'GiB', 1024, (maxGraphMemory / 1024 / 1024) <= 1024 ? 256 : 512);
                fillGraph('#graphsCpuChart', [{ data: result.cpu, label: 'CPU' }], 'cpuChart', 1, cpuCount * 100, '%');
                fillGraph('#graphsDiskChart', [{ data: result.blockRead, label: 'read' }, { data: result.blockWrite, label: 'write' }], 'diskChart', ioDivisor, null, 'kB/s');
                fillGraph('#graphsNetworkChart', [{ data: result.networkRead, label: 'inbound' }, { data: result.networkWrite, label: 'outbound' }], 'networkChart', ioDivisor, null, 'kB/s');

                $scope.graphs.busy = false;
            });
        }
    };

    function findInbox(inboxes, app) {
        return inboxes.find(function (i) { return i.name === app.inboxName && i.domain === (app.inboxDomain || app.domain); });
    }

    $scope.email = {
        enableMailbox: true,
        mailboxName: '',
        mailboxDomain: null,
        mailboxDisplayName: '',
        currentMailboxName: '',
        currentMailboxDomainName: '',
        mailboxError: {},
        mailboxBusy: false,

        inboxError: {},
        inboxBusy: false,
        enableInbox: true,
        inboxes: [],
        currentInbox: null,
        inbox: null,

        show: function () {
            var app = $scope.app;

            $scope.emailForm.$setPristine();
            $scope.email.mailboxError = {};
            $scope.email.enableMailbox = app.enableMailbox ? '1' : '0';
            $scope.email.mailboxName = app.mailboxName || '';
            $scope.email.mailboxDisplayName = app.mailboxDisplayName || '';
            $scope.email.mailboxDomain = $scope.domains.filter(function (d) { return d.domain === (app.mailboxDomain || app.domain); })[0];
            $scope.email.currentMailboxName = app.mailboxName || '';
            $scope.email.currentMailboxDomainName = $scope.email.mailboxDomain ? $scope.email.mailboxDomain.domain : '';

            $scope.email.inboxError = {};
            $scope.email.enableInbox = app.enableInbox ? true : false;

            Client.getAllMailboxes(function (error, mailboxes) {
                if (error) console.error('Failed to list mailboxes.', error);

                $scope.email.inboxes = mailboxes.map(function (m) { return { display: m.name + '@' + m.domain, name: m.name, domain: m.domain }; });
                $scope.email.currentInbox = findInbox($scope.email.inboxes, app);
                $scope.email.inbox = findInbox($scope.email.inboxes, app);
            });
        },

        submitMailbox: function () {
            $scope.email.error = {};
            $scope.email.mailboxBusy = true;

            var data = {
                enable: $scope.email.enableMailbox === '1'
            };

            if (data.enable) {
                data.mailboxName = $scope.email.mailboxName || null;
                data.mailboxDomain = $scope.email.mailboxDomain.domain;
                data.mailboxDisplayName = $scope.email.mailboxDisplayName;
            }

            Client.configureApp($scope.app.id, 'mailbox', data, function (error) {
                if (error && error.statusCode === 400) {
                    $scope.email.mailboxBusy = false;
                    $scope.email.error.mailboxName = error.message;
                    $scope.emailForm.$setPristine();
                    return;
                }
                if (error) return Client.error(error);

                $scope.emailForm.$setPristine();

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    // when the mailboxName is 'reset', this will fill it up with the default again
                    $scope.email.enableMailbox = $scope.app.enableMailbox ? '1' : '0';
                    $scope.email.mailboxName = $scope.app.mailboxName || '';
                    $scope.email.mailboxDomain = $scope.domains.filter(function (d) { return d.domain === ($scope.app.mailboxDomain || $scope.app.domain); })[0];
                    $scope.email.currentMailboxName = $scope.app.mailboxName || '';
                    $scope.email.currentMailboxDomainName = $scope.email.mailboxDomain ? $scope.email.mailboxDomain.domain : '';

                    $timeout(function () { $scope.email.mailboxBusy = false; }, 1000);
                });
            });
        },

        submitInbox: function () {
            $scope.email.error = {};
            $scope.email.inboxBusy = true;

            var data = {
                enable: $scope.email.enableInbox
            };

            if (data.enable) {
                data.inboxName = $scope.email.inbox.name;
                data.inboxDomain = $scope.email.inbox.domain;
            }

            Client.configureApp($scope.app.id, 'inbox', data, function (error) {
                if (error && error.statusCode === 400) {
                    $scope.email.inboxBusy = false;
                    $scope.email.error.inboxName = error.message;
                    return;
                }
                if (error) return Client.error(error);

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    // when the mailboxName is 'reset', this will fill it up with the default again
                    $scope.email.enableInbox = $scope.app.enableInbox ? true : false;
                    $scope.email.currentInbox = findInbox($scope.email.inboxes, $scope.app);
                    $scope.email.inbox = findInbox($scope.email.inboxes, $scope.app);

                    $timeout(function () { $scope.email.inboxBusy = false; }, 1000);
                });
            });
        }
    };

    $scope.eventlog = {
        busy: false,
        eventLogs: [],
        activeEventLog: null,
        currentPage: 1,
        perPage: 15,

        show: function () {
            $scope.eventlog.refresh();
        },

        refresh: function () {
            $scope.eventlog.busy = true;

            Client.getAppEventLog($scope.app.id, $scope.eventlog.currentPage, $scope.eventlog.perPage, function (error, result) {
                if (error) return console.error('Failed to get events:', error);

                $scope.eventlog.eventLogs = [];
                result.forEach(function (e) {
                    $scope.eventlog.eventLogs.push({ raw: e, details: Client.eventLogDetails(e, $scope.app.id), source: Client.eventLogSource(e) });
                });

                $scope.eventlog.busy = false;
            });
        },

        showDetails: function (eventLog) {
            if ($scope.eventlog.activeEventLog === eventLog) $scope.eventlog.activeEventLog = null;
            else $scope.eventlog.activeEventLog = eventLog;
        },

        showNextPage: function () {
            $scope.eventlog.currentPage++;
            $scope.eventlog.refresh();
        },

        showPrevPage: function () {
            if ($scope.eventlog.currentPage > 1) $scope.eventlog.currentPage--;
            else $scope.eventlog.currentPage = 1;

            $scope.eventlog.refresh();
        }
    };

    $scope.cron = {
        busy: false,
        error: {},

        commonPatterns: [
            { value: '*    *    *    *    *', label: $translate.instant('app.cron.commonPattern.everyMinute') },
            { value: '0    *    *    *    *', label: $translate.instant('app.cron.commonPattern.everyHour') },
            { value: '*/30 *    *    *    *', label: $translate.instant('app.cron.commonPattern.twicePerHour') },
            { value: '0    0    *    *    *', label: $translate.instant('app.cron.commonPattern.everyDay') },
            { value: '0    */12 *    *    *', label: $translate.instant('app.cron.commonPattern.twicePerDay') },
            { value: '0    0    *    *    0', label: $translate.instant('app.cron.commonPattern.everySunday') },

            { value: '@daily', label: $translate.instant('app.cron.commonPattern.daily') },
            { value: '@hourly', label: $translate.instant('app.cron.commonPattern.hourly') },
            { value: '@service', label: $translate.instant('app.cron.commonPattern.service') }
        ],

        crontab: '',

        crontabDefault: ''
            + '# +------------------------ minute (0 - 59)\n'
            + '# |    +------------------- hour (0 - 23)\n'
            + '# |    |    +-------------- day of month (1 - 31)\n'
            + '# |    |    |    +--------- month (1 - 12)\n'
            + '# |    |    |    |    +---- day of week (0 - 6) (Sunday=0 or 7)\n'
            + '# |    |    |    |    |\n'
            + '# *    *    *    *    * command to be executed\n\n',

        show: function () {
            $scope.cronForm.$setPristine();
            $scope.cron.error = {};
            $scope.cron.crontab = $scope.app.crontab;
            if ($scope.cron.crontab === null)  $scope.cron.crontab = $scope.cron.crontabDefault; // only when null, not when ''
        },

        submit: function () {
            $scope.cron.error = {};
            $scope.cron.busy = true;

            Client.configureApp($scope.app.id, 'crontab', { crontab: $scope.cron.crontab }, function (error) {
                if (error && error.statusCode === 400) {
                    $scope.cron.busy = false;
                    $scope.cron.error.crontab = error.message;
                    $scope.cronForm.$setPristine();
                    return;
                }
                if (error) return Client.error(error);

                $scope.cronForm.$setPristine();

                $timeout(function () { $scope.cron.busy = false; }, 1000);
            });
        },

        addCommonPattern: function (pattern) {
            $scope.cron.crontab += pattern + ' /path/to/command\n';
        }
    };

    $scope.security = {
        busy: false,
        error: {},
        success: false,

        robotsTxt: '',
        csp: '',
        hstsPreload: false,

        show: function () {
            $scope.security.error = {};
            $scope.security.robotsTxt = $scope.app.reverseProxyConfig.robotsTxt || '';
            $scope.security.csp = $scope.app.reverseProxyConfig.csp || '';
            $scope.security.hstsPreload = $scope.app.reverseProxyConfig.hstsPreload || false;
        },

        submit: function () {
            $scope.security.busy = true;
            $scope.security.error = {};

            var reverseProxyConfig = {
                robotsTxt: $scope.security.robotsTxt || null, // empty string resets
                csp: $scope.security.csp || null, // empty string resets
                hstsPreload: $scope.security.hstsPreload
            };

            Client.configureApp($scope.app.id, 'reverse_proxy', reverseProxyConfig, function (error) {
                if (error) return Client.error(error);

                $timeout(function () {
                    $scope.security.success = true;
                    $scope.security.busy = false;
                }, 1000);
            });
        }
    };

    $scope.proxy = {
        busy: false,
        error: null,
        success: false,

        upstreamUri: '',

        show: function () {
            $scope.proxyForm.$setPristine();
            $scope.proxy.error = null;
            $scope.proxy.upstreamUri = $scope.app.upstreamUri || '';
        },

        submit: function () {
            $scope.proxy.busy = true;
            $scope.proxy.error = null;

            var upstreamUri = $scope.proxy.upstreamUri.replace(/\/$/, '');
            Client.configureApp($scope.app.id, 'upstream_uri', { upstreamUri: upstreamUri }, function (error) {
                $scope.proxy.busy = false;

                if (error && error.statusCode === 400) {
                    $scope.proxy.error = error.message;
                    $scope.proxyForm.$setPristine();
                    return;
                }
                if (error) return Client.error(error);

                $scope.proxyForm.$setPristine();

                $timeout(function () {
                    $scope.proxy.success = true;
                }, 1000);
            });
        }
    };

    $scope.updates = {
        busy: false,
        busyCheck: false,
        busyUpdate: false,
        busyAutomaticUpdates: false,
        skipBackup: false,
        enableAutomaticUpdate: true,

        show: function () {
            $scope.updates.skipBackup = false;
            $scope.updates.enableAutomaticUpdate = $scope.app.enableAutomaticUpdate;
        },

        toggleAutomaticUpdates: function () {
            $scope.updates.busyAutomaticUpdates = true;

            Client.configureApp($scope.app.id, 'automatic_update', { enable: !$scope.updates.enableAutomaticUpdate }, function (error) {
                if (error) return Client.error(error);

                refreshApp($scope.app.id, function (error) {
                    if (error) console.error(error);

                    $timeout(function () {
                        console.log($scope.updates.enableAutomaticUpdate, $scope.app.enableAutomaticUpdate);
                        $scope.updates.enableAutomaticUpdate = $scope.app.enableAutomaticUpdate;
                        $scope.updates.busyAutomaticUpdates = false;
                    }, 2000);
                });
            });
        },

        check: function () {
            $scope.updates.busyCheck = true;

            Client.checkForAppUpdates($scope.app.id, function (error) {
                if (error) Client.error(error);

                $scope.updates.busyCheck = false;
            });
        },

        askUpdate: function () {
            $scope.updates.busyUpdate = false;
            $('#updateModal').modal('show');
        },

        confirmUpdate: function () {
            $scope.updates.busyUpdate = true;

            Client.updateApp($scope.app.id, $scope.config.update[$scope.app.id].manifest, { skipBackup: $scope.updates.skipBackup }, function (error) {
                $scope.updates.busyUpdate = false;
                if (error) return Client.error(error);

                $('#updateModal').modal('hide');
                refreshApp($scope.app.id);
            });
        }
    };

    $scope.backupDetails = {
        backup: null,

        show: function (backup) {
            $scope.backupDetails.backup = backup;
            $('#backupDetailsModal').modal('show');
        }
    };

    $scope.backups = {
        busy: false,
        busyCreate: false,
        busyAutomaticBackups: false,
        error: {},

        enableBackup: false,
        backups: [],

        createBackup: function () {
            $scope.backups.busyCreate = true;

            Client.backupApp($scope.app.id, function (error) {
                if (error) Client.error(error);

                refreshApp($scope.app.id, function () {
                    $scope.backups.busyCreate = false;

                    waitForAppTask(function (error) {
                        if (error) return Client.error(error);

                        $scope.backups.show(); // refresh backup listing
                    });
                });
            });
        },

        show: function () {
            var app = $scope.app;

            $scope.backups.error = {};
            $scope.backups.enableBackup = app.enableBackup;

            Client.getAppBackups(app.id, function (error, backups) {
                if (error) return Client.error(error);

                $scope.backups.backups = backups;

                Client.getAppEventLog(app.id, 1, 1, function (error, result) {
                    if (error) return console.error('Failed to get events:', error);

                    if (result.length !== 0 && result[0].action == 'app.backup.finish') {
                        $scope.backups.error.message = result[0].data.errorMessage;
                    }
                });
            });
        },

        refresh: function () {
            Client.getAppBackups($scope.app.id, function (error, backups) {
                if (error) return Client.error(error);

                $scope.backups.backups = backups;
            });
        },

        toggleAutomaticBackups: function () {
            $scope.backups.busyAutomaticBackups = true;
            $scope.backups.error = {};

            Client.configureApp($scope.app.id, 'automatic_backup', { enable: !$scope.backups.enableBackup }, function (error) {
                if (error) return Client.error(error);

                $timeout(function () {
                    $scope.backups.enableBackup = !$scope.backups.enableBackup;
                    $scope.backups.busyAutomaticBackups = false;
                }, 1000);
            });
        }
    };

    $scope.s3like = function (provider) {
        return provider === 's3' || provider === 'minio' || provider === 's3-v4-compat'
               || provider === 'exoscale-sos' || provider === 'digitalocean-spaces' || provider === 'hetzner-objectstorage'
               || provider === 'scaleway-objectstorage' || provider === 'wasabi' || provider === 'backblaze-b2' || provider === 'cloudflare-r2'
               || provider === 'linode-objectstorage' || provider === 'ovh-objectstorage' || provider === 'ionos-objectstorage'
               || provider === 'vultr-objectstorage' || provider === 'upcloud-objectstorage' || provider === 'idrive-e2'
               || provider === 'contabo-objectstorage';
    };

    $scope.mountlike = function (provider) {
        return provider === 'sshfs' || provider === 'cifs' || provider === 'nfs' || provider === 'mountpoint' || provider === 'ext4' || provider === 'xfs';
    };

    $scope.importBackup = {
        busy: false,
        error: {},

        // variables here have to match the import config logic!
        provider: '',
        bucket: '',
        prefix: '',
        mountPoint: '', // for mountpoint
        accessKeyId: '',
        secretAccessKey: '',
        gcsKey: { keyFileName: '', content: '' },
        region: '',
        endpoint: '',
        acceptSelfSignedCerts: false,
        format: 'tgz',
        remotePath: '',
        password: '',
        encryptedFilenames: true,
        mountOptions: {
            host: '',
            remoteDir: '',
            username: '',
            password: '',
            diskPath: '',
            user: '',
            seal: true,
            port: 22,
            privateKey: ''
        },
        encrypted: false, // helps with ng-required when backupConfig is read from file

        clearForm: function () {
            // $scope.importBackup.provider = ''; // do not clear since we call this function on provider change
            $scope.importBackup.bucket = '';
            $scope.importBackup.mountPoint = '';
            $scope.importBackup.accessKeyId = '';
            $scope.importBackup.secretAccessKey = '';
            $scope.importBackup.gcsKey.keyFileName = '';
            $scope.importBackup.gcsKey.content = '';
            $scope.importBackup.endpoint = '';
            $scope.importBackup.region = '';
            $scope.importBackup.format = 'tgz';
            $scope.importBackup.acceptSelfSignedCerts = false;
            $scope.importBackup.password = '';
            $scope.importBackup.encryptedFilenames = true;
            $scope.importBackup.remotePath = '';
            $scope.importBackup.mountOptions = { host: '', remoteDir: '', username: '', password: '', diskPath: '', seal: true, user: '', port: 22, privateKey: '' };
        },

        submit: function () {
            $scope.importBackup.error = {};
            $scope.importBackup.busy = true;

            var backupConfig = {
                provider: $scope.importBackup.provider,
            };
            if ($scope.importBackup.password) {
                backupConfig.password = $scope.importBackup.password;
                backupConfig.encryptedFilenames = $scope.importBackup.encryptedFilenames;
            }

            var remotePath = $scope.importBackup.remotePath;

            // only set provider specific fields, this will clear them in the db
            if ($scope.s3like(backupConfig.provider)) {
                backupConfig.bucket = $scope.importBackup.bucket;
                backupConfig.prefix = $scope.importBackup.prefix;
                backupConfig.accessKeyId = $scope.importBackup.accessKeyId;
                backupConfig.secretAccessKey = $scope.importBackup.secretAccessKey;

                if ($scope.importBackup.endpoint) backupConfig.endpoint = $scope.importBackup.endpoint;

                if (backupConfig.provider === 's3') {
                    if ($scope.importBackup.region) backupConfig.region = $scope.importBackup.region;
                    delete backupConfig.endpoint;
                } else if (backupConfig.provider === 'minio' || backupConfig.provider === 's3-v4-compat') {
                    backupConfig.region = backupConfig.region || 'us-east-1';
                    backupConfig.acceptSelfSignedCerts = $scope.importBackup.acceptSelfSignedCerts;
                    backupConfig.s3ForcePathStyle = true; // might want to expose this in the UI
                } else if (backupConfig.provider === 'exoscale-sos') {
                    backupConfig.region = 'us-east-1';
                    backupConfig.signatureVersion = 'v4';
                } else if (backupConfig.provider === 'wasabi') {
                    backupConfig.region = $scope.wasabiRegions.find(function (x) { return x.value === $scope.importBackup.endpoint; }).region;
                    backupConfig.signatureVersion = 'v4';
                } else if (backupConfig.provider === 'scaleway-objectstorage') {
                    backupConfig.region = $scope.scalewayRegions.find(function (x) { return x.value === $scope.importBackup.endpoint; }).region;
                    backupConfig.signatureVersion = 'v4';
                } else if (backupConfig.provider === 'linode-objectstorage') {
                    backupConfig.region = $scope.linodeRegions.find(function (x) { return x.value === $scope.importBackup.endpoint; }).region;
                    backupConfig.signatureVersion = 'v4';
                } else if (backupConfig.provider === 'ovh-objectstorage') {
                    backupConfig.region = $scope.ovhRegions.find(function (x) { return x.value === $scope.importBackup.endpoint; }).region;
                    backupConfig.signatureVersion = 'v4';
                } else if (backupConfig.provider === 'ionos-objectstorage') {
                    backupConfig.region = $scope.ionosRegions.find(function (x) { return x.value === $scope.importBackup.endpoint; }).region;
                    backupConfig.signatureVersion = 'v4';
                } else if (backupConfig.provider === 'vultr-objectstorage') {
                    backupConfig.region = $scope.vultrRegions.find(function (x) { return x.value === $scope.importBackup.endpoint; }).region;
                    backupConfig.signatureVersion = 'v4';
                } else if (backupConfig.provider === 'contabo-objectstorage') {
                    backupConfig.region = $scope.contaboRegions.find(function (x) { return x.value === $scope.importBackup.endpoint; }).region;
                    backupConfig.signatureVersion = 'v4';
                    backupConfig.s3ForcePathStyle = true; // https://docs.contabo.com/docs/products/Object-Storage/technical-description (no virtual buckets)
                } else if (backupConfig.provider === 'upcloud-objectstorage') {
                    var m = /^.*\.(.*)\.upcloudobjects.com$/.exec(backupConfig.endpoint);
                    backupConfig.region = m ? m[1] : 'us-east-1'; // let it fail in validation phase if m is not valid
                    backupConfig.signatureVersion = 'v4';
                } else if (backupConfig.provider === 'digitalocean-spaces') {
                    backupConfig.region = 'us-east-1';
                } else if (backupConfig.provider === 'hetzner-objectstorage') {
                    backupConfig.region = 'us-east-1';
                    backupConfig.signatureVersion = 'v4';
                }
            } else if (backupConfig.provider === 'gcs') {
                backupConfig.bucket = $scope.importBackup.bucket;
                backupConfig.prefix = $scope.importBackup.prefix;
                try {
                    var serviceAccountKey = JSON.parse($scope.importBackup.gcsKey.content);
                    backupConfig.projectId = serviceAccountKey.project_id;
                    backupConfig.credentials = {
                        client_email: serviceAccountKey.client_email,
                        private_key: serviceAccountKey.private_key
                    };

                    if (!backupConfig.projectId || !backupConfig.credentials || !backupConfig.credentials.client_email || !backupConfig.credentials.private_key) {
                        throw 'fields_missing';
                    }
                } catch (e) {
                    $scope.importBackup.error.generic = 'Cannot parse Google Service Account Key: ' + e.message;
                    $scope.importBackup.error.gcsKeyInput = true;
                    $scope.importBackup.busy = false;
                    return;
                }
            } else if (backupConfig.provider === 'sshfs' || backupConfig.provider === 'cifs' || backupConfig.provider === 'nfs' || backupConfig.provider === 'ext4' || backupConfig.provider === 'xfs') {
                backupConfig.mountOptions = $scope.importBackup.mountOptions;
                backupConfig.prefix = $scope.importBackup.prefix;
            } else if (backupConfig.provider === 'mountpoint') {
                backupConfig.prefix = $scope.importBackup.prefix;
                backupConfig.mountPoint = $scope.importBackup.mountPoint;
            } else if (backupConfig.provider === 'filesystem') {
                var parts = remotePath.split('/');
                remotePath = parts.pop() || parts.pop(); // removes any trailing slash. this is basename()
                backupConfig.backupFolder = parts.join('/'); // this is dirname()
            }

            if ($scope.importBackup.format === 'tgz') {
                if (remotePath.substring(remotePath.length - '.tar.gz'.length, remotePath.length) === '.tar.gz') { // endsWith
                    remotePath = remotePath.replace(/.tar.gz$/, '');
                } else if (remotePath.substring(remotePath.length - '.tar.gz.enc'.length, remotePath.length) === '.tar.gz.enc') { // endsWith
                    remotePath = remotePath.replace(/.tar.gz.enc$/, '');
                }
            }

            Client.importBackup($scope.app.id, remotePath, $scope.importBackup.format, backupConfig, function (error) {
                if (error) {
                    $scope.importBackup.busy = false;

                    if (error.statusCode === 424) {
                        $scope.importBackup.error.generic = error.message;

                        if (error.message.indexOf('AWS Access Key Id') !== -1) {
                            $scope.importBackup.error.accessKeyId = true;
                            $scope.importBackupForm.accessKeyId.$setPristine();
                            $('#inputImportBackupAccessKeyId').focus();
                        } else if (error.message.indexOf('not match the signature') !== -1 || error.message.indexOf('Signature') !== -1) {
                            $scope.importBackup.error.secretAccessKey = true;
                            $scope.importBackupForm.secretAccessKey.$setPristine();
                            $('#inputImportBackupSecretAccessKey').focus();
                        } else if (error.message.toLowerCase() === 'access denied') {
                            $scope.importBackup.error.accessKeyId = true;
                            $scope.importBackupForm.accessKeyId.$setPristine();
                            $('#inputImportBackupBucket').focus();
                        } else if (error.message.indexOf('ECONNREFUSED') !== -1) {
                            $scope.importBackup.error.generic = 'Unknown region';
                            $scope.importBackup.error.region = true;
                            $scope.importBackupForm.region.$setPristine();
                            $('#inputImportBackupDORegion').focus();
                        } else if (error.message.toLowerCase() === 'wrong region') {
                            $scope.importBackup.error.generic = 'Wrong S3 Region';
                            $scope.importBackup.error.region = true;
                            $scope.importBackupForm.region.$setPristine();
                            $('#inputImportBackupS3Region').focus();
                        } else {
                            $scope.importBackup.error.bucket = true;
                            $('#inputImportBackupBucket').focus();
                            $scope.importBackupForm.bucket.$setPristine();
                        }
                    } else if (error.statusCode === 400) {
                        $scope.importBackup.error.generic = error.message;

                        if ($scope.importBackup.provider === 'filesystem') {
                            $scope.importBackup.error.backupFolder = true;
                        }
                    } else {
                        Client.error(error);
                    }

                    return;
                }

                $('#importBackupModal').modal('hide');

                // clear potential post-install flag
                $scope.app.pendingPostInstallConfirmation = false;
                delete localStorage['confirmPostInstall_' + $scope.app.id];

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.importBackup.busy = false; }, 1000);
                });
            });
        },

        show: function () {
            $scope.importBackup.clearForm();
            $('#importBackupModal').modal('show');
        },
    };

    $scope.editBackup = {
        busy: false,
        error: null,
        backup: null,

        label: '',
        persist: false,

        show: function (backup) {
            $scope.editBackup.backup = backup;
            $scope.editBackup.label = backup.label;
            $scope.editBackup.persist = backup.preserveSecs === -1;
            $scope.editBackup.error = null;
            $scope.editBackup.busy = false;

            $('#editBackupModal').modal('show');
        },

        submit: function () {
            $scope.editBackup.error = null;
            $scope.editBackup.busy = true;

            Client.editAppBackup($scope.app.id, $scope.editBackup.backup.id, $scope.editBackup.label, $scope.editBackup.persist ? -1 : 0, function (error) {
                $scope.editBackup.busy = false;
                if (error) return $scope.editBackup.error = error.message;

                $scope.backups.refresh();

                $('#editBackupModal').modal('hide');
            });
        }
    };

    $scope.backupDetails = {
        backup: null,

        show: function (backup) {
            $scope.backupDetails.backup = backup;
            $('#backupDetailsModal').modal('show');
        }
    };

    $scope.uninstall = {
        busy: false,
        error: {},
        busyRunState: false,
        startButton: false,
        latestBackup: null,

        toggleRunState: function (confirmStop) {
            if (confirmStop && $scope.app.runState !== RSTATES.STOPPED) {
                $('#stopModal').modal('show');
                return;
            }

            $('#stopModal').modal('hide');

            var func  = $scope.app.runState === RSTATES.STOPPED ? Client.startApp : Client.stopApp;
            $scope.uninstall.busyRunState = true;

            func($scope.app.id, function (error) {
                if (error) return Client.error(error);

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.uninstall.busyRunState = false; }, 1000);
                });
            });
        },

        show: function () {
            $scope.uninstall.error = {};

            $scope.uninstall.latestBackup = null;

            Client.getAppBackups($scope.app.id, function (error, backups) {
                if (!error && backups.length) $scope.uninstall.latestBackup = backups[0];
            });
        },

        ask: function (what) {
            if (what === 'uninstall') {
                $('#uninstallModal').modal('show');
            } else {
                $('#archiveModal').modal('show');
            }
        },

        submit: function (what) {
            $scope.uninstall.busy = true;

            var NOOP = function (next) { return next(); };
            var stopAppTask = $scope.app.taskId ? Client.stopTask.bind(null, $scope.app.taskId) : NOOP;

            stopAppTask(function () { // ignore error
                const func = what === 'uninstall' ?
                    Client.uninstallApp.bind(null, $scope.app.id) :
                    Client.archiveApp.bind(Client, $scope.app.id, $scope.uninstall.latestBackup.id);

                func(function (error) {
                    if (error && error.statusCode === 402) { // unpurchase failed
                        Client.error('Relogin to Cloudron App Store');
                    } else if (error) {
                        Client.error(error);
                    } else {
                        if (what === 'uninstall') {
                            $('#uninstallModal').modal('hide');
                        } else {
                            $('#archiveModal').modal('hide');
                        }
                        $location.path('/apps');
                    }

                    $scope.uninstall.busy = false;
                });
            });
        }
    };

    $scope.restore = {
        busy: false,
        error: {},

        backup: null,

        show: function (backup) {
            $scope.restore.error = {};
            $scope.restore.backup = backup;

            $('#restoreModal').modal('show');
        },

        submit: function () {
            $scope.restore.busy = true;

            Client.restoreApp($scope.app.id, $scope.restore.backup.id, function (error) {
                $scope.restore.busy = false;

                if (error) {
                    Client.error(error);
                    return;
                }

                $('#restoreModal').modal('hide');

                refreshApp($scope.app.id);
            });
        }
    };

    $scope.clone = {
        busy: false,
        error: {},

        backup: null,
        subdomain: '',
        domain: null,
        secondaryDomains: {},
        needsOverwrite: false,
        overwriteDns: false,
        ports: {},
        portsEnabled: {},
        portInfo: {},

        show: function (backup) {
            var app = $scope.app;

            $scope.clone.error = {};
            $scope.clone.backup = backup;
            $scope.clone.domain = $scope.domains.find(function (d) { return app.domain === d.domain; }); // pre-select the app's domain

            $scope.clone.needsOverwrite = false;
            $scope.clone.overwriteDns = false;

            $scope.clone.secondaryDomains = {};

            var httpPorts = backup.manifest.httpPorts || {};
            for (var env2 in httpPorts) {
                $scope.clone.secondaryDomains[env2] = {
                    subdomain: httpPorts[env2].defaultValue || '',
                    domain: $scope.clone.domain
                };
            }

            $scope.clone.portInfo = angular.extend({}, backup.manifest.tcpPorts, backup.manifest.udpPorts);   // Portbinding map only for information
            // set default ports
            for (var env in $scope.clone.portInfo) {
                $scope.clone.ports[env] = $scope.clone.portInfo[env].defaultValue || 0;
                $scope.clone.portsEnabled[env] = true;
            }

            $('#appCloneModal').modal('show');
        },

        submit: function () {
            $scope.clone.busy = true;

            var secondaryDomains = {};
            for (var env2 in $scope.clone.secondaryDomains) {
                secondaryDomains[env2] = {
                    subdomain: $scope.clone.secondaryDomains[env2].subdomain,
                    domain: $scope.clone.secondaryDomains[env2].domain.domain
                };
            }

            // only use enabled ports
            var finalPorts = {};
            for (var env in $scope.clone.ports) {
                if ($scope.clone.portsEnabled[env]) {
                    finalPorts[env] = $scope.clone.ports[env];
                }
            }

            var data = {
                subdomain: $scope.clone.subdomain,
                domain: $scope.clone.domain.domain,
                secondaryDomains: secondaryDomains,
                ports: finalPorts,
                backupId: $scope.clone.backup.id,
                overwriteDns: $scope.clone.overwriteDns
            };

            var allDomains = [{ domain: data.domain, subdomain: data.subdomain }].concat(Object.keys(secondaryDomains).map(function (k) {
                return {
                    domain: secondaryDomains[k].domain,
                    subdomain: secondaryDomains[k].subdomain
                };
            }));
            async.eachSeries(allDomains, function (domain, callback) {
                if ($scope.clone.overwriteDns) return callback();

                Client.checkDNSRecords(domain.domain, domain.subdomain, function (error, result) {
                    if (error) return callback(error);

                    var fqdn = domain.subdomain + '.' + domain.domain;

                    if (result.error) {
                        if (result.error.reason === ERROR.ACCESS_DENIED) return callback({ type: 'provider', fqdn: fqdn, message: 'DNS credentials for ' + domain.domain + ' are invalid. Update it in Domains & Certs view' });
                        return callback({ type: 'provider', fqdn: fqdn, message: result.error.message });
                    }
                    if (result.needsOverwrite) {
                        $scope.clone.needsOverwrite = true;
                        $scope.clone.overwriteDns = true;
                        return callback({ type: 'externally_exists', fqdn: fqdn, message: 'DNS Record already exists. Confirm that the domain is not in use for services external to Cloudron' });
                    }

                    callback();
                });
            }, function (error) {
                if (error) {
                    if (error.type) {
                        $scope.clone.error.location = error;
                        $scope.clone.busy = false;
                    } else {
                        Client.error(error);
                    }

                    $scope.clone.error.location = error;
                    $scope.clone.busy = false;
                    return;
                }

                Client.cloneApp($scope.app.id, data, function (error/*, clonedApp */) {
                    $scope.clone.busy = false;

                    if (error) {
                        var errorMessage = error.message.toLowerCase();
                        if (errorMessage.indexOf('port') !== -1) {
                            $scope.clone.error.port = error.message;
                        } else if (error.message.indexOf('location') !== -1 || error.message.indexOf('subdomain') !== -1) {
                            // TODO extract fqdn from error message, currently we just set it always to the main location
                            $scope.clone.error.location = { type: 'internally_exists', fqdn: data.subdomain + '.' + data.domain, message: error.message };
                            $('#cloneLocationInput').focus();
                        } else {
                            Client.error(error);
                        }
                        return;
                    }

                    $('#appCloneModal').modal('hide');

                    $location.path('/apps');
                });
            });
        }
    };

    $scope.repair = {
        retryBusy: false,
        error: {},

        subdomain: null,
        domain: null,
        redirectDomains: [],
        aliasDomains: [],
        backups: [],

        backupId: '',

        show: function () {},

        // this prepares the repair dialog with whatever is required for repair action
        confirm: function () {
            $scope.repair.error = {};
            $scope.repair.retryBusy = false;
            $scope.repair.subdomain = null;
            $scope.repair.domain = null;
            $scope.repair.redirectDomains = [];
            $scope.repair.aliasDomains = [];
            $scope.repair.backupId = '';

            var app = $scope.app;

            var errorState = ($scope.app.error && $scope.app.error.installationState) || ISTATES.PENDING_CONFIGURE;

            if (errorState === ISTATES.PENDING_LOCATION_CHANGE) {
                $scope.repair.subdomain = app.subdomain;
                $scope.repair.domain = $scope.domains.filter(function (d) { return d.domain === app.domain; })[0];

                $scope.repair.aliasDomains = $scope.app.aliasDomains;
                $scope.repair.aliasDomains = $scope.app.aliasDomains.map(function (aliasDomain) {
                    return {
                        subdomain: aliasDomain.subdomain,
                        enabled: true,
                        domain: $scope.domains.filter(function (d) { return d.domain === aliasDomain.domain; })[0]
                    };
                });

                $scope.repair.redirectDomains = $scope.app.redirectDomains;
                $scope.repair.redirectDomains = $scope.app.redirectDomains.map(function (altDomain) {
                    return {
                        subdomain: altDomain.subdomain,
                        enabled: true,
                        domain: $scope.domains.filter(function (d) { return d.domain === altDomain.domain; })[0]
                    };
                });
            }

            if (errorState === ISTATES.PENDING_RESTORE || errorState === ISTATES.PENDING_IMPORT) {
                Client.getAppBackups($scope.app.id, function (error, backups) {
                    if (error) return Client.error(error);

                    $scope.repair.backups = backups;
                    $scope.repair.backupId = '';

                    $('#repairModal').modal('show');
                });
                return;
            }

            $('#repairModal').modal('show');
        },

        submit: function () {
            $scope.repair.error = {};
            $scope.repair.retryBusy = true;

            var errorState = ($scope.app.error && $scope.app.error.installationState) || ISTATES.PENDING_CONFIGURE;
            var data = {};
            var repairFunc;

            switch (errorState) {
            case ISTATES.PENDING_INSTALL:
            case ISTATES.PENDING_CLONE: // if manifest or bad image, use CLI to provide new manifest
                repairFunc = Client.repairApp.bind(null, $scope.app.id, {}); // this will trigger a re-install
                break;

            case ISTATES.PENDING_LOCATION_CHANGE:
                data.subdomain = $scope.repair.subdomain;
                data.domain = $scope.repair.domain.domain;
                data.aliasDomains = $scope.repair.aliasDomains.filter(function (a) { return a.enabled; })
                    .map(function (d) { return { subdomain: d.subdomain, domain: d.domain.domain }; });
                data.redirectDomains = $scope.repair.redirectDomains.filter(function (a) { return a.enabled; })
                    .map(function (d) { return { subdomain: d.subdomain, domain: d.domain.domain }; });
                data.overwriteDns = true; // always overwriteDns. user can anyway check and uncheck above
                repairFunc = Client.configureApp.bind(null, $scope.app.id, 'location', data);
                break;

            case ISTATES.PENDING_DATA_DIR_MIGRATION:
                repairFunc = Client.configureApp.bind(null, $scope.app.id, 'storage', { storageVolumeId: null, storageVolumePrefix: null });
                break;

            // this also happens for import faliures. this UI can only show backup listing. use CLI for arbit id/config
            case ISTATES.PENDING_RESTORE:
            case ISTATES.PENDING_IMPORT:
                if ($scope.repair.backups.length === 0) { // this can happen when you give some invalid backup via CLI and restore via UI
                    repairFunc = Client.repairApp.bind(null, $scope.app.id, {}); // this will trigger a re-install
                } else {
                    repairFunc = Client.restoreApp.bind(null, $scope.app.id, $scope.repair.backupId);
                }
                break;

            case ISTATES.PENDING_UNINSTALL:
                repairFunc = Client.uninstallApp.bind(null, $scope.app.id);
                break;

            case ISTATES.PENDING_START:
            case ISTATES.PENDING_STOP:
            case ISTATES.PENDING_RESTART:
            case ISTATES.PENDING_RESIZE:
            case ISTATES.PENDING_DEBUG:
            case ISTATES.PENDING_RECREATE_CONTAINER:
            case ISTATES.PENDING_CONFIGURE:
            case ISTATES.PENDING_BACKUP: // can happen if the backup task was killed/rebooted
            case ISTATES.PENDING_UPDATE: // when update failed, just bring it back to current state and user can click update again
            default:
                repairFunc = Client.repairApp.bind(null, $scope.app.id, {});
                break;
            }

            repairFunc(function (error) {
                $scope.repair.retryBusy = false;
                if (error) return Client.error(error);

                $scope.repair.retryBusy = false;
                $('#repairModal').modal('hide');
            });
        },

        restartBusy: false,
        restartApp: function () {
            $scope.repair.restartBusy = true;

            Client.restartApp($scope.app.id, function (error) {
                if (error) return console.error(error);

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.repair.restartBusy = false; }, 1000);
                });
            });
        },

        pauseBusy: false,

        pauseAppBegin: function () {
            $scope.repair.pauseBusy = true;

            Client.debugApp($scope.app.id, true, function (error) {
                if (error) return console.error(error);

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.repair.pauseBusy = false; }, 1000);
                });
            });
        },

        pauseAppDone: function () {
            $scope.repair.pauseBusy = true;

            Client.debugApp($scope.app.id, false, function (error) {
                if (error) return console.error(error);

                refreshApp($scope.app.id, function (error) {
                    if (error) return Client.error(error);

                    $timeout(function () { $scope.repair.pauseBusy = false; }, 1000);
                });
            });
        }

    };

    function fetchUsers(callback) {
        Client.getAllUsers(function (error, users) {
            if (error) return callback(error);

            $scope.users = users;

            callback();
        });
    }

    function fetchGroups(callback) {
        Client.getGroups(function (error, groups) {
            if (error) return callback(error);

            $scope.groups = groups;

            callback();
        });
    }

    function fetchDiskUsage(callback) {
        $scope.diskUsage = -1;
        $scope.diskUsageDate = 0;

        Client.diskUsage(function (error, result) {
            if (error) return callback(error);
            if (!result.usage) return callback(); // no usage date yet

            $scope.diskUsageDate = result.usage.ts;

            for (var diskName in result.usage.disks) {
                var disk = result.usage.disks[diskName];
                var content =  disk.contents.find(function (c) { return c.id === appId; });

                if (content) {
                    $scope.diskUsage = content.usage;
                    break;
                }
            }

            callback();
        });
    }

    function getDomains(callback) {
        Client.getDomains(function (error, result) {
            if (error) return callback(error);

            $scope.domains = result;

            callback();
        });
    }

    function getVolumes(callback) {
        Client.getVolumes(function (error, result) {
            if (error) return callback(error);

            $scope.volumes = result;

            callback();
        });
    }

    function getBackupConfig(callback) {
        Client.getBackupConfig(function (error, backupConfig) {
            if (error) return callback(error);

            $scope.backupConfig = backupConfig;

            callback();
        });
    }

    function refreshApp(appId, callback) {
        callback = callback || function () {};

        Client.getAppWithTask(appId, function (error, app) {
            if (error && error.statusCode === 404) return $location.path('/apps');
            if (error) return callback(error);

            $scope.app = app;

            // show 'Start App' if app is starting or is stopped
            if (app.installationState === ISTATES.PENDING_START || app.installationState === ISTATES.PENDING_STOP) {
                $scope.uninstall.startButton = app.installationState === ISTATES.PENDING_START;
            } else {
                $scope.uninstall.startButton = app.runState === RSTATES.STOPPED;
            }

            callback();
        });
    }

    function waitForAppTask(callback) {
        callback = callback || function () {};

        if (!$scope.app.taskId) return callback();

        // app will be refreshed on interval
        $timeout(waitForAppTask.bind(null, callback), 2000); // not yet done
    }

    // https://stackoverflow.com/questions/3665115/how-to-create-a-file-in-memory-for-user-to-download-but-not-through-server#18197341
    function download(filename, text) {
        var element = document.createElement('a');
        element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
        element.setAttribute('download', filename);

        element.style.display = 'none';
        document.body.appendChild(element);

        element.click();

        document.body.removeChild(element);
    }

    $scope.downloadConfig = function (backup) {
        // secrets and tokens already come with placeholder characters we remove them
        var tmp = {
            remotePath: backup.remotePath,
            encrypted: !!$scope.backupConfig.password  // we add this just to help the import UI
        };

        Object.keys($scope.backupConfig).forEach(function (k) {
            var v = $scope.backupConfig[k];
            if (v && typeof v === 'object') { // to hide mountOptions.password and the likes
                tmp[k] = {};
                Object.keys(v).forEach(function (j) {
                    if (v[j] !== SECRET_PLACEHOLDER) tmp[k][j] = v[j];
                });
            } else {
                if ($scope.backupConfig[k] !== SECRET_PLACEHOLDER) tmp[k] = v;
            }
        });

        const filename = `${$scope.app.fqdn}-backup-config-${(new Date(backup.creationTime)).toISOString().split('T')[0]}.json`;
        download(filename, JSON.stringify(tmp, null, 4));
    };

    document.getElementById('backupConfigFileInput').onchange = function (event) {
        var reader = new FileReader();
        reader.onload = function (result) {
            if (!result.target || !result.target.result) return console.error('Unable to read backup config');

            var backupConfig;
            try {
                backupConfig = JSON.parse(result.target.result);
                if (backupConfig.provider === 'filesystem') { // this allows a user to upload a backup to server and import easily with an absolute path
                    backupConfig.remotePath = backupConfig.backupFolder + '/' + backupConfig.remotePath;
                    delete backupConfig.backupFolder;
                }
            } catch (e) {
                console.error('Unable to parse backup config', e);
                return;
            }

            $scope.$apply(function () {
                // we assume property names match here, this does not yet work for gcs keys
                Object.keys(backupConfig).forEach(function (k) {
                    if (k in $scope.importBackup) {
                        $scope.importBackup[k] = backupConfig[k];
                    }
                });
            });
        };
        reader.readAsText(event.target.files[0]);
    };

    Client.onReady(function () {
        refreshApp(appId, function (error) {
            if (error) return Client.error(error);

            if ($scope.app.accessLevel !== 'admin' && $scope.app.accessLevel !== 'operator') return $location.path('/');

            // skipViewShow because we don't have all the values like domains/users to init the view yet
            if ($routeParams.view) { // explicit route in url bar
                $scope.setView($routeParams.view, true /* skipViewShow */);
            } else { // default
                $scope.setView($scope.app.error ? 'repair' : 'info', true /* skipViewShow */);
            }

            function done() {
                $scope[$scope.view].show(); // initialize now that we have all the values

                var refreshTimer = $interval(function () { refreshApp($scope.app.id); }, 5000); // call with inline function to avoid iteration argument passed see $interval docs
                $scope.$on('$destroy', function () {
                    $interval.cancel(refreshTimer);
                });
            }

            if ($scope.app.accessLevel !== 'admin') return done();

            async.series([
                fetchUsers,
                fetchGroups,
                fetchDiskUsage,
                getDomains,
                getVolumes,
                getBackupConfig
            ], function (error) {
                if (error) return Client.error(error);

                // check for updates, if the app has a pending update. this handles two cases:
                // 1. user got a valid subscription. this will make the updates get the manifest field
                // 2. user has not refreshed the ui in a while or updated via cli tool. this will ensure we are not holding to a dangling update
                if ($scope.config.update[$scope.app.id]) Client.checkForUpdates();

                done();
            });
        });
    });

    $('#iconFileInput').get(0).onchange = function (event) {
        var fr = new FileReader();
        fr.onload = function () {
            $scope.$apply(function () {
                // var file = event.target.files[0];
                $scope.display.icon.data = fr.result;
            });
        };
        fr.readAsDataURL(event.target.files[0]);
    };

    // setup all the dialog focus handling
    ['appUninstallModal', 'appUpdateModal', 'appRestoreModal', 'appCloneModal', 'editBackupModal'].forEach(function (id) {
        $('#' + id).on('shown.bs.modal', function () {
            $(this).find('[autofocus]:first').focus();
        });
    });

    var clipboard = new Clipboard('.clipboard');
    clipboard.on('success', function () {
        $scope.$apply(function () { $scope.copyBackupIdDone = true; });
        $timeout(function () { $scope.copyBackupIdDone = false; }, 5000);
    });

    $('.modal-backdrop').remove();
}]);