'use strict';

/* global angular */
/* global $ */
/* global asyncSeries */

angular.module('Application').controller('AppController', ['$scope', '$location', '$timeout', '$interval', 'Client', function ($scope, $location, $timeout, $interval, Client) {
    Client.onReady(function () { if (!Client.getUserInfo().admin) $location.path('/'); });

    var appId = $location.path().slice('/app/'.length);

    $scope.app = null;
    $scope.ready = false;
    $scope.HOST_PORT_MIN = 1024;
    $scope.HOST_PORT_MAX = 65535;
    $scope.config = Client.getConfig();
    $scope.user = Client.getUserInfo();
    $scope.domains = [];
    $scope.groups = [];
    $scope.users = [];
    $scope.backupsEnabled = true;
    $scope.disableIndexingTemplate = '# Disable search engine indexing\n\nUser-agent: *\nDisallow: /';

    $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;

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

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

            $('#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]);
            };
        },

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

            // TODO break those apart
            Client.configureApp($scope.app.id, 'label', { label: $scope.display.label }, function (error) {
                if (error) return Client.error(error);

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

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

                    // skip if icon is unchanged
                    if ($scope.display.icon.data === null) {
                        $scope.display.busy = false;
                        $scope.display.success = true;
                        return;
                    }

                    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 Client.error(error);

                        $scope.display.busy = false;
                        $scope.display.success = true;
                    });
                });
            });
        }
    };

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

        domain: null,
        location: '',
        alternateDomains: [],
        portBindings: {},
        portBindingsEnabled: {},
        portBindingsInfo: {},

        addAlternateDomain: function (event) {
            event.preventDefault();
            $scope.location.alternateDomains.push({
                domain: $scope.domains[0],
                subdomain: ''
            });
        },

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

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

            $scope.location.location = app.location;
            $scope.location.domain = $scope.domains.filter(function (d) { return d.domain === app.domain; })[0];
            $scope.location.portBindingsInfo = angular.extend({}, app.manifest.tcpPorts, app.manifest.udpPorts); // Portbinding map only for information
            $scope.location.alternateDomains = app.alternateDomains.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.portBindingsInfo) {
                if (app.portBindings && app.portBindings[env]) {
                    $scope.location.portBindings[env] = app.portBindings[env];
                    $scope.location.portBindingsEnabled[env] = true;
                } else {
                    $scope.location.portBindings[env] = $scope.location.portBindingsInfo[env].defaultValue || 0;
                    $scope.location.portBindingsEnabled[env] = false;
                }
            }
        },

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

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

            var data = {
                location: $scope.location.location,
                domain: $scope.location.domain.domain,
                portBindings: portBindings,
                alternateDomains: $scope.location.alternateDomains.map(function (a) { return { subdomain: a.subdomain, domain: a.domain.domain };})
            };

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

                $scope.location.success = true;
                $scope.location.busy = false;
            });
        }
    };

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

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

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

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

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

            if (app.accessRestriction) {
                var 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); });

                var groupSet = { };
                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); });
            }
        },

        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; });
            }

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

                $scope.access.success = true;
                $scope.access.busy = false;
            });
        }
    };

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

        memoryLimit: 0,
        memoryTicks: [],
        dataDir: null,
        dataDirEnabled: false,

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

            $scope.resources.memoryLimit = app.memoryLimit || app.manifest.memoryLimit || (256 * 1024 * 1024);
            $scope.resources.dataDirEnabled = !!app.dataDir;
            $scope.resources.dataDir = app.dataDir;

            // create ticks starting from manifest memory limit. the memory limit here is currently split into ram+swap (and thus *2 below)
            // TODO: the *2 will overallocate since 4GB is max swap that cloudron itself allocates
            $scope.resources.memoryTicks = [];
            var npow2 = Math.pow(2, Math.ceil(Math.log($scope.config.memory)/Math.log(2)));
            for (var i = 256; i <= (npow2*2/1024/1024); i *= 2) {
                if (i >= (app.manifest.memoryLimit/1024/1024 || 0)) $scope.resources.memoryTicks.push(i * 1024 * 1024);
            }
            if (app.manifest.memoryLimit && $scope.resources.memoryTicks[0] !== app.manifest.memoryLimit) {
                $scope.resources.memoryTicks.unshift(app.manifest.memoryLimit);
            }
        },

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

            var memoryLimit = $scope.resources.memoryLimit === $scope.resources.memoryTicks[0] ? 0 : $scope.resources.memoryLimit;

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

                $scope.resources.success = true;
                $scope.resources.busy = false;

                // TODO handle data dir once we show it
            });
        }
    };

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

        mailboxNameEnabled: false,
        mailboxName: '',
        domain: '',

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

            $scope.email.mailboxNameEnabled = app.mailboxName && (app.mailboxName.match(/\.app$/) === null);
            $scope.email.mailboxName = app.mailboxName || '';
            $scope.email.domain = $scope.domains.filter(function (d) { return d.domain === app.domain; })[0];
        },

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

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

        robotsTxt: '',

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

            $scope.security.robotsTxt = app.robotsTxt;
        },

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

            Client.configureApp($scope.app.id, 'robots_txt', { robotsTxt: $scope.security.robotsTxt }, function (error) {
                if (error) return Client.error(error);

                $scope.security.success = true;
                $scope.security.busy = false;
            });
        }
    };

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

        enableAutomaticUpdate: false,

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

            $scope.updates.enableAutomaticUpdate = app.enableAutomaticUpdate;
        },

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

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

                $scope.updates.success = true;
                $scope.updates.busy = false;
            });
        }
    };

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

        enableBackup: false,

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

            $scope.backups.enableBackup = app.enableBackup;
        },

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

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

                $scope.backups.success = true;
                $scope.backups.busy = false;
            });
        }
    };

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

            // ensure we have something to work with in the access restriction dropdowns
            users.forEach(function (user) { user.display = user.username || user.email; });

            $scope.users = users;

            callback();
        });
    }

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

            $scope.groups = groups;

            callback();
        });
    }

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

            $scope.domains = result;

            callback();
        });
    }

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

            $scope.backupEnabled = backupConfig.provider !== 'noop';

            callback();
        });
    }

    Client.onReady(function () {
        $scope.app = Client.getApp(appId, function (error, app) {
            if (error) return Client.error(error);

            $scope.app = app;

            asyncSeries([
                fetchUsers,
                fetchGroups,
                getDomains,
                getBackupConfig
            ], function (error) {
                if (error) return Client.error(error);

                $scope.display.show();
                $scope.location.show();
                $scope.resources.show();
                $scope.access.show();
                $scope.email.show();
                $scope.security.show();
                $scope.backups.show();
                $scope.updates.show();

                $scope.ready = true;
            });
        });
    });

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

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