<?php
/**
 * PermissionsTest.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  2019 Tony Murray
 * @author     Tony Murray <murraytony@gmail.com>
 */

namespace LibreNMS\Tests\Unit;

use App\Models\Bill;
use App\Models\Device;
use App\Models\Port;
use App\Models\User;
use LibreNMS\Tests\TestCase;

class PermissionsTest extends TestCase
{
    private function devicePermissionData($user)
    {
        $user_id = $user instanceof User ? $user->user_id : (is_numeric($user) ? (int) $user : \Auth::id());

        $data = null;

        switch ($user_id) {
            case 43:
                $data = [
                    (object) ['user_id' => 43, 'device_id' => 54],
                    (object) ['user_id' => 43, 'device_id' => 32],
                ];
                break;
            case 14:
                $data = [
                    (object) ['user_id' => 14, 'device_id' => 54],
                ];
                break;
        }

        return new \Illuminate\Support\Collection($data);
    }

    public function testUserCanAccessDevice(): void
    {
        $perms = \Mockery::mock(\LibreNMS\Cache\PermissionsCache::class)->makePartial();
        $perms->shouldReceive('getDevicePermissions')->andReturnUsing(function ($user) {
            return self::devicePermissionData($user);
        });

        $device = Device::factory()->make(['device_id' => 54]); /** @var Device $device */
        $user = User::factory()->make(['user_id' => 43]); /** @var User $user */
        $this->assertTrue($perms->canAccessDevice($device, 43));
        $this->assertTrue($perms->canAccessDevice($device, $user));
        $this->assertTrue($perms->canAccessDevice(54, $user));
        $this->assertTrue($perms->canAccessDevice(54, 43));
        $this->assertTrue($perms->canAccessDevice(54, 43));
        $this->assertFalse($perms->canAccessDevice(54, 23));
        $this->assertFalse($perms->canAccessDevice(23, 43));
        $this->assertFalse($perms->canAccessDevice(54));

        \Auth::shouldReceive('id')->once()->andReturn(43);
        $this->assertTrue($perms->canAccessDevice(54));
        \Auth::shouldReceive('id')->once()->andReturn(23);
        $this->assertFalse($perms->canAccessDevice(54));
    }

    public function testDevicesForUser(): void
    {
        $perms = \Mockery::mock(\LibreNMS\Cache\PermissionsCache::class)->makePartial();
        $perms->shouldReceive('getDevicePermissions')->andReturnUsing(function ($user) {
            return self::devicePermissionData($user);
        });

        $this->assertEquals(collect([54, 32]), $perms->devicesForUser(43));
        $user = User::factory()->make(['user_id' => 43]); /** @var User $user */
        $this->assertEquals(collect([54, 32]), $perms->devicesForUser($user));
        $this->assertEmpty($perms->devicesForUser(9));
        $this->assertEquals(collect(), $perms->devicesForUser());
        \Auth::shouldReceive('id')->once()->andReturn(14);
        $this->assertEquals(collect([54]), $perms->devicesForUser());
    }

    /*
        public function testUsersForDevice()
        {
            $perms = \Mockery::mock(\LibreNMS\Permissions::class)->makePartial();
            $perms->shouldReceive('getDevicePermissions')->andReturn(collect([
                (object)['user_id' => 3, 'device_id' => 7],
                (object)['user_id' => 3, 'device_id' => 2],
                (object)['user_id' => 4, 'device_id' => 5],
                (object)['user_id' => 6, 'device_id' => 5],
            ]));

            $this->assertEquals(collect([4, 6]), $perms->usersForDevice(5));
            $this->assertEquals(collect([3]), $perms->usersForDevice(Device::factory()->make(['device_id' => 7])));
            $this->assertEquals(collect(), $perms->usersForDevice(6));
            $this->assertEmpty($perms->usersForDevice(9));
        }
    */
    public function testUserCanAccessPort(): void
    {
        $perms = \Mockery::mock(\LibreNMS\Cache\PermissionsCache::class)->makePartial();
        $perms->shouldReceive('getPortPermissions')->andReturn(collect([
            (object) ['user_id' => 43, 'port_id' => 54],
            (object) ['user_id' => 43, 'port_id' => 32],
            (object) ['user_id' => 14, 'port_id' => 54],
        ]));

        $port = Port::factory()->make(['port_id' => 54]); /** @var Port $port */
        $user = User::factory()->make(['user_id' => 43]); /** @var User $user */
        $this->assertTrue($perms->canAccessPort($port, 43));
        $this->assertTrue($perms->canAccessPort($port, $user));
        $this->assertTrue($perms->canAccessPort(54, $user));
        $this->assertTrue($perms->canAccessPort(54, 43));
        $this->assertTrue($perms->canAccessPort(54, 43));
        $this->assertFalse($perms->canAccessPort(54, 23));
        $this->assertFalse($perms->canAccessPort(23, 43));
        $this->assertFalse($perms->canAccessPort(54));

        \Auth::shouldReceive('id')->once()->andReturn(43);
        $this->assertTrue($perms->canAccessPort(54));
        \Auth::shouldReceive('id')->once()->andReturn(23);
        $this->assertFalse($perms->canAccessPort(54));
    }

    public function testPortsForUser(): void
    {
        $perms = \Mockery::mock(\LibreNMS\Cache\PermissionsCache::class)->makePartial();
        $perms->shouldReceive('getPortPermissions')->andReturn(collect([
            (object) ['user_id' => 3, 'port_id' => 7],
            (object) ['user_id' => 3, 'port_id' => 2],
            (object) ['user_id' => 4, 'port_id' => 5],
        ]));

        $this->assertEquals(collect([7, 2]), $perms->portsForUser(3));
        $user = User::factory()->make(['user_id' => 3]); /** @var User $user */
        $this->assertEquals(collect([7, 2]), $perms->portsForUser($user));
        $this->assertEmpty($perms->portsForUser(9));
        $this->assertEquals(collect(), $perms->portsForUser());
        \Auth::shouldReceive('id')->once()->andReturn(4);
        $this->assertEquals(collect([5]), $perms->portsForUser());
    }

    public function testUsersForPort(): void
    {
        $perms = \Mockery::mock(\LibreNMS\Cache\PermissionsCache::class)->makePartial();
        $perms->shouldReceive('getPortPermissions')->andReturn(collect([
            (object) ['user_id' => 3, 'port_id' => 7],
            (object) ['user_id' => 3, 'port_id' => 2],
            (object) ['user_id' => 4, 'port_id' => 5],
            (object) ['user_id' => 6, 'port_id' => 5],
        ]));

        $port = Port::factory()->make(['port_id' => 7]); /** @var Port $port */
        $this->assertEquals(collect([4, 6]), $perms->usersForPort(5));
        $this->assertEquals(collect([3]), $perms->usersForPort($port));
        $this->assertEquals(collect(), $perms->usersForPort(6));
        $this->assertEmpty($perms->usersForPort(9));
    }

    public function testUserCanAccessBill(): void
    {
        $perms = \Mockery::mock(\LibreNMS\Cache\PermissionsCache::class)->makePartial();
        $perms->shouldReceive('getBillPermissions')->andReturn(collect([
            (object) ['user_id' => 43, 'bill_id' => 54],
            (object) ['user_id' => 43, 'bill_id' => 32],
            (object) ['user_id' => 14, 'bill_id' => 54],
        ]));

        $bill = Bill::factory()->make(['bill_id' => 54]); /** @var Bill $bill */
        $user = User::factory()->make(['user_id' => 43]); /** @var User $user */
        $this->assertTrue($perms->canAccessBill($bill, 43));
        $this->assertTrue($perms->canAccessBill($bill, $user));
        $this->assertTrue($perms->canAccessBill(54, $user));
        $this->assertTrue($perms->canAccessBill(54, 43));
        $this->assertTrue($perms->canAccessBill(54, 43));
        $this->assertFalse($perms->canAccessBill(54, 23));
        $this->assertFalse($perms->canAccessBill(23, 43));
        $this->assertFalse($perms->canAccessBill(54));

        \Auth::shouldReceive('id')->once()->andReturn(43);
        $this->assertTrue($perms->canAccessBill(54));
        \Auth::shouldReceive('id')->once()->andReturn(23);
        $this->assertFalse($perms->canAccessBill(54));
    }

    public function testBillsForUser(): void
    {
        $perms = \Mockery::mock(\LibreNMS\Cache\PermissionsCache::class)->makePartial();
        $perms->shouldReceive('getBillPermissions')->andReturn(collect([
            (object) ['user_id' => 3, 'bill_id' => 7],
            (object) ['user_id' => 3, 'bill_id' => 2],
            (object) ['user_id' => 4, 'bill_id' => 5],
        ]));

        $this->assertEquals(collect([7, 2]), $perms->billsForUser(3));
        $user = User::factory()->make(['user_id' => 3]); /** @var User $user */
        $this->assertEquals(collect([7, 2]), $perms->billsForUser($user));
        $this->assertEmpty($perms->billsForUser(9));
        $this->assertEquals(collect(), $perms->billsForUser());
        \Auth::shouldReceive('id')->once()->andReturn(4);
        $this->assertEquals(collect([5]), $perms->billsForUser());
    }

    public function testUsersForBill(): void
    {
        $perms = \Mockery::mock(\LibreNMS\Cache\PermissionsCache::class)->makePartial();
        $perms->shouldReceive('getBillPermissions')->andReturn(collect([
            (object) ['user_id' => 3, 'bill_id' => 7],
            (object) ['user_id' => 3, 'bill_id' => 2],
            (object) ['user_id' => 4, 'bill_id' => 5],
            (object) ['user_id' => 6, 'bill_id' => 5],
        ]));

        $this->assertEquals(collect([4, 6]), $perms->usersForBill(5));
        $bill = Bill::factory()->make(['bill_id' => 7]); /** @var Bill $bill */
        $this->assertEquals(collect([3]), $perms->usersForBill($bill));
        $this->assertEquals(collect(), $perms->usersForBill(6));
        $this->assertEmpty($perms->usersForBill(9));
    }
}