<?php

/**
 * RrdDefinitonTest.php
 *
 * -Description-
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * @link       https://www.librenms.org
 *
 * @copyright  2017 Tony Murray
 * @author     Tony Murray <murraytony@gmail.com>
 */

namespace LibreNMS\Tests;

use App\Facades\LibrenmsConfig;
use LibreNMS\RRD\RrdDefinition;

final class RrdDefinitionTest extends TestCase
{
    public function testEmpty(): void
    {
        $this->assertEmpty((string) new RrdDefinition());
    }

    public function testWrongType(): void
    {
        $this->expectException(\LibreNMS\Exceptions\InvalidRrdTypeException::class);
        LibrenmsConfig::set('rrd.step', 300);
        LibrenmsConfig::set('rrd.heartbeat', 600);
        $def = new RrdDefinition();
        $def->addDataset('badtype', 'Something unexpected');
    }

    public function testNameEscaping(): void
    {
        LibrenmsConfig::set('rrd.step', 300);
        LibrenmsConfig::set('rrd.heartbeat', 600);
        $expected = 'DS:bad_name-is_too_lon:GAUGE:600:0:100';
        $def = RrdDefinition::make()->addDataset('b a%d$_n:a^me-is_too_lon%g.', 'GAUGE', 0, 100, 600);

        $this->assertEquals($expected, (string) $def);
    }

    public function testCreation(): void
    {
        LibrenmsConfig::set('rrd.step', 300);
        LibrenmsConfig::set('rrd.heartbeat', 600);
        $expected = 'DS:pos:COUNTER:600:0:125000000000 DS:unbound:DERIVE:600:U:U';

        $def = new RrdDefinition();
        $def->addDataset('pos', 'COUNTER', 0, 125000000000);
        $def->addDataset('unbound', 'DERIVE');

        $this->assertEquals($expected, (string) $def);
    }

    public function testCreationWithSource(): void
    {
        LibrenmsConfig::set('rrd.step', 300);
        LibrenmsConfig::set('rrd.heartbeat', 600);
        $def = new RrdDefinition();
        $def->addDataset('migrated', 'COUNTER', 0, 125000000000, null, 'source_ds');
        $def->addDataset('other', 'DERIVE');
        $this->assertEquals([
            'DS:migrated=source_ds:COUNTER:600:0:125000000000',
            'DS:other:DERIVE:600:U:U',
        ], $def->getArguments());

        // use __FILE__ to satisify the file exists check
        $def->addDataset('fromfile', 'COUNTER', source_ds: 'other', source_file: __FILE__);
        $this->assertEquals([
            '--source',
            __FILE__,
            'DS:migrated=source_ds:COUNTER:600:0:125000000000',
            'DS:other:DERIVE:600:U:U',
            'DS:fromfile=other[1]:COUNTER:600:U:U',
        ], $def->getArguments());
    }
}
