'use strict';

/* global angular:false */
/* global $:false */
/* global APP_TYPES */
/* global onAppClick */

angular.module('Application').controller('AppsController', ['$scope', '$translate', '$interval', '$location', 'Client', function ($scope, $translate, $interval, $location, Client) {
    var ALL_DOMAINS_DOMAIN = { _alldomains: true, domain: 'All Domains' }; // dummy record for the single select filter
    var GROUP_ACCESS_UNSET = { _unset: true, name: 'Select Group' }; // dummy record for the single select filter

    $scope.installedApps = Client.getInstalledApps();
    $scope.tags = Client.getAppTags();
    $scope.states = [
        { state: '', label: 'All States' },
        { state: 'running', label: 'Running' },
        { state: 'stopped', label: 'Stopped' },
        { state: 'update_available', label: 'Update Available' },
        { state: 'not_responding', label: 'Not Responding' }
    ];
    $scope.selectedState = $scope.states[0];
    $scope.selectedTags = [];
    $scope.selectedGroup = GROUP_ACCESS_UNSET;
    $scope.selectedDomain = ALL_DOMAINS_DOMAIN;
    $scope.filterDomains = [ ALL_DOMAINS_DOMAIN ];
    $scope.config = Client.getConfig();
    $scope.user = Client.getUserInfo();
    $scope.domains = [];
    $scope.appSearch = '';
    $scope.groups = [ GROUP_ACCESS_UNSET ];
    $scope.APP_TYPES = APP_TYPES;
    $scope.showFilter = false;
    $scope.filterActive = false;

    $scope.VIEWS = {
        GRID: 'grid',
        LIST: 'list'
    };
    $scope.view = $scope.VIEWS.GRID;

    $scope.orderBy = 'location'; // or app, status, sso
    $scope.orderByReverse = false;

    $scope.allUsers = [];
    $scope.allGroups = [];

    $translate(['apps.stateFilterHeader', 'apps.domainsFilterHeader', 'apps.groupsFilterHeader', 'app.states.running', 'app.states.stopped', 'app.states.notResponding', 'app.states.updateAvailable']).then(function (tr) {
        if (tr['apps.domainsFilterHeader']) ALL_DOMAINS_DOMAIN.domain = tr['apps.domainsFilterHeader'];
        if (tr['apps.groupsFilterHeader']) GROUP_ACCESS_UNSET.name = tr['apps.groupsFilterHeader'];
        if (tr['apps.stateFilterHeader']) $scope.states[0].label = tr['apps.stateFilterHeader'];
        if (tr['app.states.running']) $scope.states[1].label = tr['app.states.running'];
        if (tr['app.states.stopped']) $scope.states[2].label = tr['app.states.stopped'];
        if (tr['app.states.notResponding']) $scope.states[4].label = tr['app.states.notResponding'];
        if (tr['app.states.updateAvailable']) $scope.states[3].label = tr['app.states.updateAvailable'];
    });

    $scope.pendingChecklistItems = function (app) {
        if (!app.checklist) return 0;
        return Object.keys(app.checklist).filter(function (key) { return !app.checklist[key].acknowledged; }).length;
    };

    $scope.setOrderBy = function (by) {
        if (by === $scope.orderBy) {
            $scope.orderByReverse = !$scope.orderByReverse;
        } else {
            $scope.orderBy = by;
            $scope.orderByReverse = false;
        }

        localStorage.appsOrderBy = by;
        if ($scope.orderByReverse) localStorage.appsOrderByReverse = true;
        else localStorage.removeItem('appsOrderByReverse');
    };

    // for sorting/grouping
    $scope.orderByFilter = function (item) {
        if ($scope.orderBy === 'app') return item.manifest.title || 'App Link';
        if ($scope.orderBy === 'status') return item.installationState + '-' + item.runState;
        if ($scope.orderBy === 'sso') {
            if (item.ssoAuth && item.manifest.addons.oidc) return 'oidc';
            if (item.ssoAuth && (!item.manifest.addons.oidc && !item.manifest.addons.email)) return 'sso';
            if (item.manifest.addons.email) return 'email';
            return '';
        }
        return item.label || item.fqdn;
    };

    $scope.setView = function (view) {
        if (view !== $scope.VIEWS.LIST && view !== $scope.VIEWS.GRID) return;

        $scope.view = view;
        localStorage.appsView = view;
    };

    $scope.toggleView = function () {
        $scope.view = $scope.view === $scope.VIEWS.GRID ? $scope.VIEWS.LIST : $scope.VIEWS.GRID;
        localStorage.appsView = $scope.view;
    };

    $scope.toggleFilter = function () {
        $scope.showFilter = !$scope.showFilter;

        if ($scope.showFilter) localStorage.appsShowFilter = true;
        else localStorage.removeItem('appsShowFilter');

        // clear on hide
        if (!$scope.showFilter) {
            $scope.selectedState = $scope.states[0];
            $scope.selectedTags = [];
            $scope.selectedGroup = GROUP_ACCESS_UNSET;
            $scope.selectedDomain = ALL_DOMAINS_DOMAIN;
        }
    };

    $scope.$watch('selectedTags', function (newVal, oldVal) {
        if (newVal === oldVal) return;

        localStorage.selectedTags = newVal.join(',');
    });

    $scope.$watch('selectedState', function (newVal, oldVal) {
        if (newVal === oldVal) return;

        if (newVal === $scope.states[0]) localStorage.removeItem('selectedState');
        else localStorage.selectedState = newVal.state;
    });

    $scope.$watch('selectedGroup', function (newVal, oldVal) {
        if (newVal === oldVal) return;

        if (newVal === GROUP_ACCESS_UNSET) localStorage.removeItem('selectedGroup');
        else localStorage.selectedGroup = newVal.id;
    });

    $scope.$watch('selectedDomain', function (newVal, oldVal) {
        if (newVal === oldVal) return;

        if (newVal._alldomains) localStorage.removeItem('selectedDomain');
        else localStorage.selectedDomain = newVal.domain;
    });

    $scope.onAppClick = function (app, $event) { onAppClick(app, $event, $scope.isOperator(app), $scope); };

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

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

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

            return false; // prevent propagation and default
        },

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

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

    $scope.applinksEdit = {
        error: {},
        busyEdit: false,
        busyRemove: false,
        applink: {},
        id: '',
        upstreamUri: '',
        label: '',
        tags: '',
        accessRestrictionOption: '',
        accessRestriction: { users: [], groups: [] },
        icon: { data: null },

        iconUrl: function () {
            if ($scope.applinksEdit.icon.data === '__original__') { // user clicked reset
                // https://png-pixel.com/ white pixel placeholder
                return 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8/x8AAwMCAO+ip1sAAAAASUVORK5CYII=';
            } else if ($scope.applinksEdit.icon.data) { // user uploaded icon
                return $scope.applinksEdit.icon.data;
            } else { // current icon
                return $scope.applinksEdit.applink.iconUrl;
            }
        },

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

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

        isAccessRestrictionValid: function () {
            return !!($scope.applinksEdit.accessRestriction.users.length || $scope.applinksEdit.accessRestriction.groups.length);
        },

        show: function (applink) {
            $scope.applinksEdit.error = {};
            $scope.applinksEdit.busyEdit = false;
            $scope.applinksEdit.busyRemove = false;
            $scope.applinksEdit.applink = applink;
            $scope.applinksEdit.id = applink.id;
            $scope.applinksEdit.upstreamUri = applink.upstreamUri;
            $scope.applinksEdit.label = applink.label;
            $scope.applinksEdit.accessRestrictionOption = applink.accessRestriction ? 'groups' : 'any';
            $scope.applinksEdit.accessRestriction = { users: [], groups: [] };
            $scope.applinksEdit.icon = { data: null };

            var userSet, groupSet;
            if (applink.accessRestriction) {
                userSet = {};
                applink.accessRestriction.users.forEach(function (uid) { userSet[uid] = true; });
                $scope.allUsers.forEach(function (u) { if (userSet[u.id] === true) $scope.applinksEdit.accessRestriction.users.push(u); });

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

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

            $scope.applinksEditForm.$setUntouched();
            $scope.applinksEditForm.$setPristine();

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

            return false; // prevent propagation and default
        },

        submit: function () {
            $scope.applinksEdit.busyEdit = true;
            $scope.applinksEdit.error = {};

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

            var data = {
                upstreamUri: $scope.applinksEdit.upstreamUri,
                label: $scope.applinksEdit.label,
                accessRestriction: accessRestriction,
                tags: $scope.applinksEdit.tags.split(' ').map(function (t) { return t.trim(); }).filter(function (t) { return !!t; })
            };

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

            Client.updateApplink($scope.applinksEdit.id, data, function (error) {
                $scope.applinksEdit.busyEdit = false;

                if (error && error.statusCode === 400 && error.message.includes('upstreamUri')) {
                    $scope.applinksEdit.error.upstreamUri = error.message;
                    $scope.applinksEditForm.$setUntouched();
                    $scope.applinksEditForm.$setPristine();
                    return;
                }
                if (error) return console.error('Failed to update applink', error);

                Client.refreshInstalledApps();

                $('#applinksEditModal').modal('hide');
            });
        },

        remove: function () {
            $scope.applinksEdit.busyRemove = true;

            Client.removeApplink($scope.applinksEdit.id, function (error) {
                $scope.applinksEdit.busyRemove = false;

                if (error) return console.error('Failed to remove applink', error);

                Client.refreshInstalledApps();

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

    $scope.showAppConfigure = function (app, view) {
        $location.path('/app/' + app.id + '/' + view);
    };

    $scope.isOperator = function (app) {
        return app.accessLevel === 'operator' || app.accessLevel === 'admin';
    };

    Client.onReady(function () {
        setTimeout(function () { $('#appSearch').focus(); }, 1);

        // refresh the new list immediately when switching from another view (appstore)
        Client.refreshInstalledApps(function () {
            var refreshAppsTimer = $interval(Client.refreshInstalledApps.bind(Client, function () {}), 5000);
            $scope.$on('$destroy', function () {
                $interval.cancel(refreshAppsTimer);
            });
        });

        $scope.setView(localStorage.appsView);

        $scope.orderBy = localStorage.appsOrderBy || 'location';
        $scope.orderByReverse = !!localStorage.appsOrderByReverse;
        $scope.showFilter = !!localStorage.appsShowFilter;

        if (!$scope.user.isAtLeastAdmin) return;

        // load local settings and apply tag filter
        if (localStorage.selectedTags) {
            if (!$scope.tags.length) localStorage.removeItem('selectedTags');
            else $scope.selectedTags = localStorage.selectedTags.split(',');
        }

        if (localStorage.selectedState) $scope.selectedState = $scope.states.find(function (s) { return s.state === localStorage.selectedState; }) || $scope.states[0];

        Client.getGroups(function (error, result) {
            if (error) Client.error(error);

            $scope.groups = [ GROUP_ACCESS_UNSET ].concat(result);
            $scope.allGroups = result;

            if (localStorage.selectedGroup) $scope.selectedGroup = $scope.groups.find(function (g) { return g.id === localStorage.selectedGroup; }) || GROUP_ACCESS_UNSET;
        });

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

            $scope.domains = result;
            $scope.filterDomains = [ALL_DOMAINS_DOMAIN].concat(result);

            if (localStorage.selectedDomain) $scope.selectedDomain = $scope.filterDomains.find(function (d) { return d.domain === localStorage.selectedDomain; }) || ALL_DOMAINS_DOMAIN;
        });

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

            $scope.allUsers = users;
        });
    });

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

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

    $('.collapse').on('shown.bs.collapse', function(){
        $(this).parent().find('.fa-angle-right').removeClass('fa-angle-right').addClass('fa-angle-down');
    }).on('hidden.bs.collapse', function(){
        $(this).parent().find('.fa-angle-down').removeClass('fa-angle-down').addClass('fa-angle-right');
    });

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

    function keyboardHandler(event) {
        if (event.key === '/') {
            document.getElementById('appSearch').focus();
            event.preventDefault();
        }
    }

    document.addEventListener('keydown', keyboardHandler);

    $scope.$on('$destroy', function () {
        document.removeEventListener('keydown', keyboardHandler);
    });
}]);