/*
 * This file is part of Cockpit.
 *
 * Copyright (C) 2021 Red Hat, Inc.
 *
 * Cockpit is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * Cockpit is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Cockpit; If not, see <http://www.gnu.org/licenses/>.
 */

import cockpit from 'cockpit';
import React, { useState, useEffect } from 'react';

import { Card, CardTitle, CardBody, Text } from '@patternfly/react-core';
import { ListingTable } from 'cockpit-components-table.jsx';

import * as timeformat from "timeformat.js";

const _ = cockpit.gettext;

export function AccountLogs({ name }) {
    const [logins, setLogins] = useState([]);
    useEffect(() => {
        if (logins.length === 0) {
            cockpit.spawn(["/usr/bin/last", "--time-format", "iso", "-n", 25, name], { environ: ["LC_ALL=C"] })
                    .then(data => {
                        let logins = [];
                        data.split('\n').forEach(line => {
                            // Exclude still logged in and non user lines
                            if (!line.includes(name) || line.includes('still')) {
                                return;
                            }
                            // Exclude tmux/screen lines
                            if (line.includes('tmux') || line.includes('screen')) {
                                return;
                            }

                            // format:
                            // admin    web console  ::ffff:172.27.0. 2021-09-24T09:02:13+00:00 - 2021-09-24T09:04:20+00:00  (00:02)
                            const lines = line.split(/ +/);
                            const ended = new Date(lines[lines.length - 2]);
                            const started = new Date(lines[lines.length - 4]);
                            const from = lines[lines.length - 5];
                            if (isNaN(started.getTime()) || isNaN(ended.getTime())) {
                                return;
                            }

                            logins.push({
                                started,
                                ended,
                                from
                            });
                        });

                        // Only show 15 login lines
                        logins = logins.slice(0, 15);
                        setLogins(logins);
                    })
                    .catch((ex) => {
                        console.error(ex);
                    });
        }
    }, [logins, name]);

    return (
        <Card id="account-logs">
            <CardTitle>
                <Text component="h2">{_("Login history")}</Text>
            </CardTitle>
            <CardBody className="contains-list">
                <ListingTable variant="compact" aria-label={ _("Login history list") }
                    columns={ [
                        { title: _("Started") },
                        { title: _("Ended") },
                        { title: _("From") },
                    ] }
                    rows={ logins.map((line, index) => ({
                        props: { key: index },
                        columns: [timeformat.dateTime(line.started), timeformat.dateTime(line.ended), line.from]
                    }))} />
            </CardBody>
        </Card>);
}
