<?php

namespace App\Filament\Widgets;

use App\Services\Dokploy\DokployClient;
use Filament\Widgets\Widget;
use Illuminate\Support\Arr;

class DokployPlatformHealth extends Widget
{
    protected string $view = 'filament.widgets.dokploy-platform-health';

    protected ?string $pollingInterval = '60s';

    protected function getViewData(): array
    {
        return [
            'applications' => $this->loadApplications(),
        ];
    }

    protected function loadApplications(): array
    {
        $client = app(DokployClient::class);
        $applicationMap = config('dokploy.applications', []);
        $results = [];

        foreach ($applicationMap as $label => $applicationId) {
            try {
                $status = $client->applicationStatus($applicationId);
                $deployments = $client->recentDeployments($applicationId, 1);
                $application = Arr::get($status, 'application', []);
                $monitoring = Arr::get($status, 'monitoring', []);

                $results[] = [
                    'label' => ucfirst($label),
                    'application_id' => $applicationId,
                    'app_name' => Arr::get($application, 'appName') ?? Arr::get($application, 'name'),
                    'status' => Arr::get($application, 'applicationStatus', 'unknown'),
                    'cpu' => $this->extractMetric($monitoring, [
                        'metrics.cpuPercent',
                        'metrics.cpu_percent',
                        'cpuPercent',
                        'cpu_percent',
                    ]),
                    'memory' => $this->extractMetric($monitoring, [
                        'metrics.memoryPercent',
                        'metrics.memory_percent',
                        'memoryPercent',
                        'memory_percent',
                    ]),
                    'last_deploy' => Arr::get($deployments, '0.createdAt')
                        ?? Arr::get($deployments, '0.created_at')
                        ?? Arr::get($application, 'updatedAt')
                        ?? Arr::get($application, 'lastDeploymentAt'),
                ];
            } catch (\Throwable $exception) {
                $results[] = [
                    'label' => ucfirst($label),
                    'application_id' => $applicationId,
                    'status' => 'unreachable',
                    'error' => $exception->getMessage(),
                ];
            }
        }

        if (empty($results)) {
            return [
                [
                    'label' => 'Dokploy',
                    'application_id' => '-',
                    'status' => 'unconfigured',
                    'error' => 'Set DOKPLOY_APPLICATION_IDS in .env to enable monitoring.',
                ],
            ];
        }

        return $results;
    }

    protected function extractMetric(array $source, array $candidates): mixed
    {
        foreach ($candidates as $key) {
            if (Arr::has($source, $key)) {
                return Arr::get($source, $key);
            }
        }

        return null;
    }
}