<?php

namespace App\Network\Drivers\Mikrotik;

use App\Network\Clients\RouterOs\RouterOsApiClient;
use App\Network\Contracts\DeviceDriverInterface;
use Throwable;

class MikrotikDriver implements DeviceDriverInterface
{
    private const GROUPS = [
        'RADIQ-READ' => 'local,ssh,read,test,winbox,api',
        'RADIQ-WRITE' => 'local,ssh,read,write,test,winbox,password,api',
        'RADIQ-NOC' => 'local,ssh,read,write,test,winbox,password,api',
    ];

    public function __construct(private readonly RouterOsApiClient $client) {}

    public function testConnection(): array
    {
        $this->client->connect();
        try {
            return $this->client->command(['/system/identity/print', '=.proplist=name'])[0] ?? [];
        } finally {
            $this->client->disconnect();
        }
    }

    public function getDeviceInfo(): array
    {
        $identity = $this->safeQuery(['/system/identity/print', '=.proplist=name']);
        $routerboard = $this->safeQuery(['/system/routerboard/print', '=.proplist=routerboard,model,serial-number,current-firmware,upgrade-firmware']);
        $resource = $this->safeQuery(['/system/resource/print', '=.proplist=version,board-name,architecture-name,cpu-count,total-memory,free-memory,uptime']);
        $cpu = $this->safeQuery(['/system/resource/print', '=.proplist=cpu']);

        return ['identity' => $identity['name'] ?? null] + $routerboard + $resource + $cpu;
    }

    public function provisionBaseAccess(string $username, string $password): array
    {
        $this->client->connect();
        try {
            foreach (self::GROUPS as $name => $policies) {
                $existing = $this->client->command(['/user/group/print', '?name='.$name, '=.proplist=.id']);
                if ($existing === []) {
                    $this->client->command(['/user/group/add', '=name='.$name, '=policy='.$policies, '=comment=Managed by RADIQ NDM']);
                } else {
                    $this->client->command(['/user/group/set', '=.id='.$existing[0]['.id'], '=policy='.$policies, '=comment=Managed by RADIQ NDM']);
                }
            }

            $users = $this->client->command(['/user/print', '?name='.$username, '=.proplist=.id']);
            if ($users === []) {
                $this->client->command(['/user/add', '=name='.$username, '=password='.$password, '=group=full', '=disabled=no', '=comment=Managed by RADIQ NDM']);
            } else {
                $this->client->command(['/user/set', '=.id='.$users[0]['.id'], '=password='.$password, '=group=full', '=disabled=no', '=comment=Managed by RADIQ NDM']);
            }

            return ['groups' => array_keys(self::GROUPS), 'username' => $username];
        } finally {
            $this->client->disconnect();
        }
    }

    public function syncUser(string $username, string $password, string $group, bool $enabled): array
    {
        $this->client->connect();
        try {
            $users = $this->client->command(['/user/print', '?name='.$username, '=.proplist=.id']);
            if ($users === []) {
                $this->client->command(['/user/add', '=name='.$username, '=password='.$password, '=group='.$group, '=disabled='.($enabled ? 'no' : 'yes'), '=comment=Managed by RADIQ NDM']);
                $users = $this->client->command(['/user/print', '?name='.$username, '=.proplist=.id']);
            } else {
                $this->client->command(['/user/set', '=.id='.$users[0]['.id'], '=password='.$password, '=group='.$group, '=disabled='.($enabled ? 'no' : 'yes'), '=comment=Managed by RADIQ NDM']);
            }

            return ['remote_id' => $users[0]['.id'] ?? null];
        } finally {
            $this->client->disconnect();
        }
    }

    public function deleteUser(string $username): void
    {
        $this->client->connect();
        try {
            $users = $this->client->command(['/user/print', '?name='.$username, '=.proplist=.id']);
            if ($users !== []) {
                $this->client->command(['/user/remove', '=.id='.$users[0]['.id']]);
            }
        } finally {
            $this->client->disconnect();
        }
    }

    public function cleanupLegacyUsers(string $preserveUsername): array
    {
        $this->client->connect();
        try {
            $users = $this->client->command(['/user/print', '=.proplist=.id,name,group']);
            $deleted = [];
            $preserved = [];
            foreach ($users as $user) {
                if (($user['name'] ?? '') === $preserveUsername || strtolower($user['group'] ?? '') === 'full') {
                    $preserved[] = $user['name'] ?? '';

                    continue;
                }
                if (isset($user['.id'])) {
                    $this->client->command(['/user/remove', '=.id='.$user['.id']]);
                    $deleted[] = $user['name'] ?? '';
                }
            }

            return ['deleted' => $deleted, 'preserved' => $preserved];
        } finally {
            $this->client->disconnect();
        }
    }

    /** @return array<string, string> */
    private function safeQuery(array $command): array
    {
        try {
            $this->client->connect();

            return $this->client->command($command)[0] ?? [];
        } catch (Throwable) {
            return [];
        } finally {
            $this->client->disconnect();
        }
    }
}