'use strict';

/* global Clipboard:false */
+/* global asyncForEach:false */

angular.module('Application').controller('UsersController', ['$scope', '$location', '$timeout', 'Client', function ($scope, $location, $timeout, Client) {
    Client.onReady(function () { if (!Client.hasScope('users')) $location.path('/'); });

    $scope.ready = false;
    $scope.users = [];
    $scope.usersById = [];
    $scope.groups = [];
    $scope.groupsById = { };
    $scope.config = Client.getConfig();
    $scope.userInfo = Client.getUserInfo();

    $scope.userremove = {
        busy: false,
        error: {},
        userInfo: {},
        password: '',

        show: function (userInfo) {
            $scope.userremove.error.username = null;
            $scope.userremove.error.password = null;
            $scope.userremove.password = '';
            $scope.userremove.userInfo = userInfo;

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

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

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

            // transfer to self for now. not transferred to owner because this user probably wants to "manage" it immediately
            // FIXME: this may awkwardly transfer resources but fail with incorrect password
            Client.transferOwnership($scope.userremove.userInfo.id, $scope.userInfo.id, function (error) {
                if (error) return console.error('Unable to transfer resources.', error);

                Client.removeUser($scope.userremove.userInfo.id, $scope.userremove.password, function (error) {
                    $scope.userremove.busy = false;

                    if (error && error.statusCode === 403) {
                        $scope.userremove.error.password = 'Wrong password';
                        $scope.userremove.password = '';
                        $scope.userremove_form.password.$setPristine();
                        $('#inputUserRemovePassword').focus();
                        return;
                    }
                    if (error) return console.error('Unable to delete user.', error);

                    $scope.userremove.userInfo = {};
                    $scope.userremove.password = '';

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

                    refresh();

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

    $scope.useradd = {
        busy: false,
        alreadyTaken: false,
        error: {},
        email: '',
        username: '',
        displayName: '',
        sendInvite: true,
        selectedGroups: [],
        superuser: false,

        show: function () {
            $scope.useradd.error = {};
            $scope.useradd.email = '';
            $scope.useradd.username = '';
            $scope.useradd.displayName = '';
            $scope.useradd.selectedGroups = [];
            $scope.useradd.superuser = false;

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

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

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

            $scope.useradd.alreadyTaken = false;
            $scope.useradd.error.email = null;
            $scope.useradd.error.username = null;
            $scope.useradd.error.displayName = null;

            Client.createUser($scope.useradd.username || null, $scope.useradd.email, $scope.useradd.displayName, $scope.useradd.sendInvite, function (error, newUserInfo) {
                if (error) {
                    $scope.useradd.busy = false;

                    if (error.statusCode === 409) {
                        if (error.message.toLowerCase().indexOf('email') !== -1) {
                            $scope.useradd.error.email = 'Email already taken';
                            $scope.useradd_form.email.$setPristine();
                            $('#inputUserAddEmail').focus();
                        } else if (error.message.toLowerCase().indexOf('username') !== -1 || error.message.toLowerCase().indexOf('mailbox') !== -1) {
                            $scope.useradd.error.username = 'Username already taken';
                            $scope.useradd_form.username.$setPristine();
                            $('#inputUserAddUsername').focus();
                        } else {
                            // should not happen!!
                            console.error(error.message);
                        }
                        return;
                    } else if (error.statusCode === 400) {
                        if (error.message.toLowerCase().indexOf('email') !== -1) {
                            $scope.useradd.error.email = 'Invalid Email';
                            $scope.useradd.error.emailAttempted = $scope.useradd.email;
                            $scope.useradd_form.email.$setPristine();
                            $('#inputUserAddEmail').focus();
                        } else if (error.message.toLowerCase().indexOf('username') !== -1) {
                            $scope.useradd.error.username = error.message;
                            $scope.useradd_form.username.$setPristine();
                            $('#inputUserAddUsername').focus();
                        } else {
                            console.error('Unable to create user.', error.statusCode, error.message);
                        }
                        return;
                    } else {
                        return console.error('Unable to create user.', error.statusCode, error.message);
                    }
                }

                var groupIds = $scope.useradd.selectedGroups.map(function (g) { return g.id; });

                if ($scope.useradd.superuser) {
                    if (groupIds.indexOf('admin') === -1) groupIds.push('admin');
                } else {
                    groupIds = groupIds.filter(function (groupId) { return groupId !== 'admin'; });
                }

                Client.setGroups(newUserInfo.id, groupIds, function (error) {
                    $scope.useradd.busy = false;

                    if (error) return console.error('Unable to update groups for user:', error);

                    refresh();

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

    $scope.useredit = {
        busy: false,
        error: {},
        userInfo: {},
        email: '',
        fallbackEmail: '',
        aliases: {},
        displayName: '',
        superuser: false,
        selectedGroups: [],

        show: function (userInfo) {
            $scope.useredit.error = {};
            $scope.useredit.email = userInfo.email;
            $scope.useredit.displayName = userInfo.displayName;
            $scope.useredit.fallbackEmail = userInfo.fallbackEmail;
            $scope.useredit.userInfo = userInfo;
            $scope.useredit.selectedGroups = userInfo.groupIds.map(function (gid) { return $scope.groupsById[gid]; });
            $scope.useredit.superuser = userInfo.groupIds.indexOf('admin') !== -1;

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

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

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

            var userId = $scope.useredit.userInfo.id;
            var data = {
                id: userId,
                email: $scope.useredit.email,
                displayName: $scope.useredit.displayName,
                fallbackEmail: $scope.useredit.fallbackEmail
            };

            Client.updateUser(data, function (error) {
                if (error) {
                    $scope.useredit.busy = false;

                    if (error.statusCode === 409) {
                        $scope.useredit.error.email = 'Email already taken';
                        $scope.useredit_form.email.$setPristine();
                        $('#inputUserEditEmail').focus();
                    } else {
                        console.error('Unable to update user:', error);
                    }

                    return;
                }

                var groupIds = $scope.useredit.selectedGroups.map(function (g) { return g.id; });

                if ($scope.useredit.superuser) {
                    if (groupIds.indexOf('admin') === -1) groupIds.push('admin');
                } else {
                    groupIds = groupIds.filter(function (groupId) { return groupId !== 'admin'; });
                }

                Client.setGroups(data.id, groupIds, function (error) {
                    $scope.useredit.busy = false;

                    if (error) return console.error('Unable to update groups for user:', error);

                    refresh();

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

    $scope.groupAdd = {
        busy: false,
        error: {},
        name: '',
        roles: {
            canManageUsers: false,
            canManageApps: false,
            canManageDomains: false,
        },

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

            $scope.groupAdd.error = {};
            $scope.groupAdd.name = '';

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

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

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

            var roles = [ ];
            if ($scope.groupAdd.roles.canManageApps) roles.push('manage_apps');
            if ($scope.groupAdd.roles.canManageUsers) roles.push('manage_users');
            if ($scope.groupAdd.roles.canManageDomains) roles.push('manage_domains');

            Client.createGroup($scope.groupAdd.name, roles, function (error) {
                $scope.groupAdd.busy = false;

                if (error && error.statusCode === 409) {
                    $scope.groupAdd.error.name = 'Name already taken';
                    $scope.groupAddForm.name.$setPristine();
                    $('#groupAddName').focus();
                    return;
                }
                if (error && error.statusCode === 400) {
                    $scope.groupAdd.error.name = error.message;
                    $scope.groupAddForm.name.$setPristine();
                    $('#groupAddName').focus();
                    return;
                }
                if (error) return console.error('Unable to create group.', error.statusCode, error.message);

                refresh();
                $('#groupAddModal').modal('hide');
            });
        }
    };

    $scope.groupEdit = {
        busy: false,
        error: {},
        groupInfo: {},
        name: '',
        selectedUsers: [],

        roles: {
            canManageUsers: false,
            canManageApps: false,
            canManageDomains: false,
        },

        show: function (groupInfo) {
            $scope.groupEdit.error = {};
            $scope.groupEdit.groupInfo = groupInfo;
            $scope.groupEdit.name = groupInfo.name;
            $scope.groupEdit.selectedUsers = groupInfo.userIds.map(function (uid) { return $scope.usersById[uid]; });

            for (var i = 0; i < groupInfo.roles.length; i++) {
                switch (groupInfo.roles[i]) {
                case 'manage_apps': $scope.groupEdit.roles.canManageApps = true; break;
                case 'manage_users': $scope.groupEdit.roles.canManageUsers = true; break;
                case 'manage_domains': $scope.groupEdit.roles.canManageDomains = true; break;
                default: break;
                }
            }

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

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

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

            var roles = [ ];
            if ($scope.groupEdit.roles.canManageApps) roles.push('manage_apps');
            if ($scope.groupEdit.roles.canManageUsers) roles.push('manage_users');
            if ($scope.groupEdit.roles.canManageDomains) roles.push('manage_domains');

            Client.updateGroup($scope.groupEdit.groupInfo.id, $scope.groupEdit.name, roles, function (error) {
                if (error) {
                    $scope.groupEdit.busy = false;

                    if (error.statusCode === 409) {
                        $scope.groupEdit.error.name = 'Name already taken';
                        $scope.groupEditForm.name.$setPristine();
                        $('#groupEditName').focus();
                        return;
                    } else if (error.statusCode === 400) {
                        $scope.groupEdit.error.name = error.message;
                        $scope.groupEditForm.name.$setPristine();
                        $('#groupEditName').focus();
                        return;
                    } else {
                        return console.error('Unable to edit group.', error.statusCode, error.message);
                    }
                }

                var userIds = $scope.groupEdit.selectedUsers.map(function (u) { return u.id; });

                Client.setGroupMembers($scope.groupEdit.groupInfo.id, userIds, function (error) {
                    $scope.groupEdit.busy = false;

                    if (error) return console.error('Unable to edit group.', error.statusCode, error.message);

                    refresh();

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

    $scope.inviteSent = {
        email: '',
        setupLink: ''
    };

    $scope.groupRemove = {
        busy: false,
        error: {},
        group: null,
        password: '',
        memberCount: 0,

        show: function (group) {
            $scope.groupRemove.busy = false;

            $scope.groupRemove.error = {};
            $scope.groupRemove.password = '';

            $scope.groupRemove.group = angular.copy(group);

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

            Client.getGroup(group.id, function (error, result) {
                if (error) return console.error('Unable to fetch group information.', error.statusCode, error.message);

                $scope.groupRemove.memberCount = result.userIds.length;

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

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

            Client.removeGroup($scope.groupRemove.group.id, $scope.groupRemove.password, function (error) {
                $scope.groupRemove.busy = false;

                if (error && error.statusCode === 403) {
                    $scope.groupRemove.error.password = 'Wrong password';
                    $scope.groupRemove.password = '';
                    $scope.groupRemoveForm.password.$setPristine();
                    $('#groupRemovePasswordInput').focus();
                    return;
                }
                if (error) return console.error('Unable to remove group.', error.statusCode, error.message);

                refresh();
                $('#groupRemoveModal').modal('hide');
            });
        }
    };

    $scope.isMe = function (user) {
        return user.username === Client.getUserInfo().username;
    };

    $scope.sendInvite = function (user) {
        $scope.inviteSent.email = user.fallbackEmail;
        $scope.inviteSent.setupLink = '';

        Client.sendInvite(user, function (error, resetToken) {
            if (error) return console.error(error);

            // Client.notify('', 'Invitation was successfully sent to ' + user.email + '.', false, 'success');

            $scope.inviteSent.setupLink = location.origin + '/api/v1/session/account/setup.html?reset_token=' + resetToken + '&email=' + encodeURIComponent(user.email);
            $('#inviteSentModal').modal('show');
        });
    };

    $scope.copyToClipboard = function (/*value*/) {
        document.execCommand('copy');
    };

    function getUsers(callback) {
        var users = [ ];

        Client.getUsers(function (error, results) {
            if (error) return console.error(error);

            asyncForEach(results, function (result, iteratorDone) {
                Client.getUser(result.id, function (error, user) {
                    if (error) return iteratorDone(error);

                    users.push(user);

                    iteratorDone();
                });
            }, function (error) {
                callback(error, users);
            });
        });
    }

    function getGroups(callback) {
        var groups = [ ];

        Client.getGroups(function (error, results) {
            if (error) return console.error(error);

            asyncForEach(results, function (result, iteratorDone) {
                Client.getGroup(result.id, function (error, group) {
                    if (error) return iteratorDone(error);

                    groups.push(group);

                    iteratorDone();
                });
            }, function (error) {
                callback(error, groups);
            });
        });
    }

    function refresh() {
        getGroups(function (error, result) {
            if (error) return console.error('Unable to get group listing.', error);

            angular.copy(result, $scope.groups);
            $scope.groupsById = { };
            for (var i = 0; i < result.length; i++) {
                $scope.groupsById[result[i].id] = result[i];
            }

            getUsers(function (error, result) {
                if (error) return console.error('Unable to get user listing.', error);

                angular.copy(result, $scope.users);
                $scope.usersById = { };
                for (var i = 0; i < result.length; i++) {
                    $scope.usersById[result[i].id] = result[i];
                }

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

    Client.onReady(refresh);

    // setup all the dialog focus handling
    ['userAddModal', 'userRemoveModal', 'userEditModal', 'groupAddModal', 'groupEditModal', 'groupRemoveModal'].forEach(function (id) {
        $('#' + id).on('shown.bs.modal', function () {
            $(this).find("[autofocus]:first").focus();
        });
    });

    var clipboard = new Clipboard('#setupLinkButton');

    clipboard.on('success', function(e) {
        $('#setupLinkButton').tooltip({
            title: 'Copied!',
            trigger: 'manual'
        }).tooltip('show');

        $timeout(function () {  $('#setupLinkButton').tooltip('hide'); }, 2000);

        e.clearSelection();
    });

    clipboard.on('error', function(/*e*/) {
        $('#setupLinkButton').tooltip({
            title: 'Press Ctrl+C to copy',
            trigger: 'manual'
        }).tooltip('show');

        $timeout(function () {  $('#setupLinkButton').tooltip('hide'); }, 2000);
    });

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