'use strict';

/* global angular:false */
/* global $:false */

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

    $scope.HOST_PORT_MIN = 1024;
    $scope.HOST_PORT_MAX = 65535;
    $scope.installedApps = Client.getInstalledApps();
    $scope.tags = Client.getAppTags();
    $scope.selectedTags = [];
    $scope.selectedDomain = ALL_DOMAINS_DOMAIN;
    $scope.filterDomains = [ ALL_DOMAINS_DOMAIN ];
    $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.appClone = {
        busy: false,
        error: {},
        app: {},
        backup: {},

        // form
        location: '',
        domain: null,
        portBindings: {},
        portBindingsInfo: {},
        portBindingsEnabled: {},

        show: function (app, backup) {
            // hide restore modal if open
            $('#appRestoreModal').modal('hide');

            $scope.appClone.busy = false;
            $scope.appClone.error = {};
            $scope.appClone.app = app;
            $scope.appClone.backup = backup;
            $scope.appClone.location = '';
            $scope.appClone.domain = $scope.domains.find(function (d) { return app.domain === d.domain; }); // pre-select the app's domain
            $scope.appClone.portBindingsInfo = angular.extend({}, $scope.appClone.app.manifest.tcpPorts, $scope.appClone.app.manifest.udpPorts);   // Portbinding map only for information
            // set default ports
            for (var env in $scope.appClone.portBindingsInfo) {
                $scope.appClone.portBindings[env] = $scope.appClone.portBindingsInfo[env].defaultValue || 0;
                $scope.appClone.portBindingsEnabled[env] = true;
            }

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

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

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

            var data = {
                location: $scope.appClone.location,
                domain: $scope.appClone.domain.domain,
                portBindings: finalPortBindings,
                backupId: $scope.appClone.backup.id
            };

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

                if (error) {
                    if (error.statusCode === 409) {
                        if (error.portName) {
                            $scope.appClone.error.port = error.message;
                        } else if (error.domain) {
                            $scope.appClone.error.location = 'This location is already taken.';
                            $('#appCloneLocationInput').focus();
                        } else {
                            Client.error(error);
                        }
                    } else {
                        Client.error(error);
                    }
                    return;
                }
                $('#appCloneModal').modal('hide');

                Client.refreshAppCache(clonedApp.id); // reflect the new app state immediately
            });
        }
    };

    $scope.appRestore = {
        busy: false,
        busyFetching: false,
        error: {},
        app: {},
        backups: [],
        copyBackupIdDone: false,
        creatingBackup: false,

        copyBackupId: function (backup) {
            var copyText = document.getElementById('appRestoreBackupIdHelper');
            copyText.value = backup.id;
            copyText.select();
            document.execCommand('copy');

            $scope.appRestore.copyBackupIdDone = true;

            // reset after 2.5sec
            $timeout(function () { $scope.appRestore.copyBackupIdDone = false; }, 2500);
        },

        createBackup: function () {
            $scope.appRestore.creatingBackup = true;

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

                function waitForBackupFinish() {
                    if ($scope.appRestore.app.installationState === 'pending_backup') return $timeout(waitForBackupFinish, 1000);

                    // we are done, refresh the backup list
                    Client.getAppBackups($scope.appRestore.app.id, function (error, backups) {
                        if (error) return Client.error(error);

                        $scope.appRestore.backups = backups;
                        $scope.appRestore.creatingBackup = false;
                    });
                }

                // reflect the new app state immediately
                Client.refreshAppCache($scope.appRestore.app.id, waitForBackupFinish);
            });
        },

        show: function (app) {
            $scope.reset();

            $scope.appRestore.app = app;
            $scope.appRestore.busyFetching = true;
            $scope.appRestore.creatingBackup = $scope.appRestore.app.installationState === 'pending_backup';

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

            Client.getAppBackups(app.id, function (error, backups) {
                if (error) {
                    Client.error(error);
                } else {
                    $scope.appRestore.backups = backups;
                    $scope.appRestore.busyFetching = false;
                }
            });

            return false; // prevent propagation and default
        },

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

            Client.restoreApp($scope.appRestore.app.id, backup.id, function (error) {
                if (error) {
                    Client.error(error);
                } else {
                    $('#appRestoreModal').modal('hide');
                }

                $scope.appRestore.busy = false;

                Client.refreshAppCache($scope.appRestore.app.id); // reflect the new app state immediately
            });
        }
    };

    $scope.appCancel = {
        app: {},
        busy: false,

        show: function (app) {
            $scope.appCancel.app = app;
            $scope.appCancel.busy = false;

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

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

            Client.stopTask($scope.appCancel.app.taskId, function (error) {
                if (error) Client.error(error);

                setTimeout(function () { // small delay for UI
                    $scope.appCancel.busy = false;

                    Client.refreshAppCache($scope.appCancel.app.id); // reflect the new app state immediately

                    $('#appCancelModal').modal('hide');
                }, 1000);
            });

            return false; // prevent propagation and default
        }
    };

    $scope.appInfo = {
        app: {},
        message: ''
    };

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

        show: function (app) {
            $scope.reset();

            $scope.appPostInstallConfirm.app = app;
            $scope.appPostInstallConfirm.message = app.manifest.postInstallMessage;

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

            return false; // prevent propagation and default
        },

        submit: function () {
            if (!$scope.appPostInstallConfirm.confirmed) return;

            $scope.appPostInstallConfirm.app.pendingPostInstallConfirmation = false;
            delete localStorage['confirmPostInstall_' + $scope.appPostInstallConfirm.app.id];

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

    $scope.appError = {
        app: null,

        show: function (app) {
            $scope.reset();

            $scope.appError.app = app;

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

            return false; // prevent propagation and default
        }
    };

    $scope.appUpdate = {
        busy: false,
        error: {},
        app: {},
        manifest: {},
        portBindings: {},

        show: function (app, updateManifest) {
            $scope.reset();

            $scope.appUpdate.app = app;
            $scope.appUpdate.manifest = angular.copy(updateManifest);

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

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

            Client.updateApp($scope.appUpdate.app.id, $scope.appUpdate.manifest, function (error) {
                if (error) {
                    Client.error(error);
                } else {
                    $scope.appUpdate.app = {};
                    $('#appUpdateModal').modal('hide');
                }

                $scope.appUpdate.busy = false;

                Client.refreshAppCache($scope.appUpdate.app.id); // reflect the new app state immediately
            });
        }
    };

    $scope.reset = function () {
        // close all dialogs
        $('#appErrorModal').modal('hide');
        $('#appRestoreModal').modal('hide');
        $('#appUpdateModal').modal('hide');
        $('#appInfoModal').modal('hide');
        $('#appPostInstallConfirmModal').modal('hide');

        // reset update dialog
        $scope.appUpdate.error = {};
        $scope.appUpdate.app = {};
        $scope.appUpdate.manifest = {};

        // reset restore dialog
        $scope.appRestore.error = {};
        $scope.appRestore.app = {};
        $scope.appRestore.backups = [];
        $scope.appRestore.location = '';
        $scope.appRestore.domain = null;
        $scope.appRestore.portBindings = {};
        $scope.appRestore.portBindingsInfo = {};
        $scope.appRestore.portBindingsEnabled = {};
        $scope.appRestore.action = 'restore';

        // post install confirmation dialog
        $scope.appPostInstallConfirm.app = {};
        $scope.appPostInstallConfirm.message = '';
        $scope.appPostInstallConfirm.confirmed = false;
    };


    $scope.showInformation = function (app) {
        $scope.reset();

        $scope.appInfo.app = app;
        $scope.appInfo.message = app.manifest.postInstallMessage;

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

        return false; // prevent propagation and default
    };

    $scope.renderAccessRestrictionUser = function (userId) {
        var user = $scope.users.filter(function (u) { return u.id === userId; })[0];

        // user not found
        if (!user) return userId;

        return user.username ? user.username : user.email;
    };

    $scope.cancel = function () {
        window.history.back();
    };

    function fetchUsers() {
        Client.getUsers(function (error, users) {
            if (error) {
                console.error(error);
                return $timeout(fetchUsers, 5000);
            }

            // 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;
        });
    }

    function fetchGroups() {
        Client.getGroups(function (error, groups) {
            if (error) {
                console.error(error);
                return $timeout(fetchUsers, 5000);
            }

            $scope.groups = groups;
        });
    }

    function getDomains() {
        Client.getDomains(function (error, result) {
            if (error) {
                console.error(error);
                return $timeout(getDomains, 5000);
            }

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

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

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

    function refreshInstalledApps() {
        Client.refreshInstalledApps();
    }

    Client.onReady(function () {
        refreshInstalledApps(); // refresh the new list immediately when switching from another view (appstore)

        if ($scope.user.admin) {
            fetchUsers();
            fetchGroups();
            getDomains();
            getBackupConfig();
        }

        var refreshAppsTimer = $interval(refreshInstalledApps, 5000);

        $scope.$on('$destroy', function () {
            $interval.cancel(refreshAppsTimer);
        });
    });

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

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