<?php

namespace App\Livewire\Server;

use App\Actions\Server\ConfigureTrafficAnalytics;
use App\Enums\ProxyTypes;
use App\Enums\TrafficIpMode;
use App\Livewire\Analytics;
use App\Models\Server;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use Illuminate\View\View;
use Livewire\Attributes\Validate;
use Livewire\Component;

class TrafficAnalyticsSettings extends Component
{
    use AuthorizesRequests;

    public Server $server;

    public bool $isTrafficAnalyticsEnabled;

    #[Validate(['required', 'integer', 'min:1', 'max:1000'])]
    public int|string $trafficTopn;

    #[Validate(['required', 'integer', 'min:0'])]
    public int|string $trafficSampleThreshold;

    #[Validate(['required', 'integer', 'min:1', 'max:365'])]
    public int|string $trafficRetention1hDays;

    #[Validate(['required', 'integer', 'min:1', 'max:3650'])]
    public int|string $trafficRetention1dDays;

    public bool $isGeoipEnabled;

    #[Validate(['required', 'integer', 'min:1'])]
    public int|string $geoipRefreshDays;

    #[Validate(['nullable', 'string', 'max:255'])]
    public ?string $geoipMaxmindLicenseKey = null;

    #[Validate(['required', 'string', 'in:full,anonymized,off'])]
    public string $trafficIpMode = 'full';

    public function mount(): void
    {
        $this->authorize('update', $this->server);
        $this->syncData();
    }

    private function syncData(bool $toModel = false): void
    {
        if ($toModel) {
            $this->validate();
            $this->server->settings->traffic_topn = $this->trafficTopn;
            $this->server->settings->traffic_sample_threshold = $this->trafficSampleThreshold;
            $this->server->settings->traffic_retention_1h_days = $this->trafficRetention1hDays;
            $this->server->settings->traffic_retention_1d_days = $this->trafficRetention1dDays;
            $this->server->settings->is_geoip_enabled = $this->isGeoipEnabled;
            $this->server->settings->geoip_refresh_days = $this->geoipRefreshDays;
            $this->server->settings->geoip_maxmind_license_key = $this->geoipMaxmindLicenseKey;
            $this->server->settings->traffic_ip_mode = TrafficIpMode::from($this->trafficIpMode);
            $this->server->settings->save();

            return;
        }

        $this->isTrafficAnalyticsEnabled = $this->server->isTrafficAnalyticsEnabled();
        $this->trafficTopn = $this->server->settings->traffic_topn;
        $this->trafficSampleThreshold = $this->server->settings->traffic_sample_threshold;
        $this->trafficRetention1hDays = $this->server->settings->traffic_retention_1h_days;
        $this->trafficRetention1dDays = $this->server->settings->traffic_retention_1d_days;
        $this->isGeoipEnabled = (bool) $this->server->settings->is_geoip_enabled;
        $this->geoipRefreshDays = $this->server->settings->geoip_refresh_days;
        $this->geoipMaxmindLicenseKey = $this->server->settings->geoip_maxmind_license_key;
        $this->trafficIpMode = TrafficIpMode::forServer($this->server)->value;
    }

    public function toggleTrafficAnalytics(): void
    {
        try {
            $this->authorize('update', $this->server);
            $enable = ! $this->server->isTrafficAnalyticsEnabled();
            if ($enable && ($reason = $this->server->trafficAnalyticsUnsupportedReason()) !== null) {
                $this->dispatch('error', $reason);

                return;
            }

            $proxyRestarted = ConfigureTrafficAnalytics::run($this->server, $enable);
            $this->server->refresh();
            $this->isTrafficAnalyticsEnabled = $this->server->isTrafficAnalyticsEnabled();
            $this->dispatch('trafficAnalyticsStateChanged')->to(Analytics::class);
            $this->dispatch('success', $this->toggleMessage($enable, $proxyRestarted));
            auditLog($enable ? 'ui.server.traffic_analytics.enabled' : 'ui.server.traffic_analytics.disabled', $this->auditContext());
        } catch (\Throwable $e) {
            handleError($e, $this);
        }
    }

    public function saveTrafficAnalyticsSettings(): void
    {
        try {
            $this->authorize('update', $this->server);
            $this->syncData(true);
            auditLog('ui.server.traffic_analytics.updated', $this->auditContext([
                'changed_fields' => ['traffic_topn', 'traffic_sample_threshold', 'traffic_retention_1h_days', 'traffic_retention_1d_days', 'is_geoip_enabled', 'geoip_refresh_days', 'geoip_maxmind_license_key', 'traffic_ip_mode'],
            ]));
            $this->dispatch('success', 'Traffic analytics settings updated. Restarting Sentinel.');
        } catch (\Throwable $e) {
            handleError($e, $this);
        }
    }

    public function render(): View
    {
        return view('livewire.server.traffic-analytics-settings', [
            'unsupportedReason' => $this->server->trafficAnalyticsUnsupportedReason(),
            'caddyRedeployNote' => $this->caddyRedeployNote(),
            'outdatedCaddyImage' => $this->server->outdatedCaddyProxyImage(),
        ]);
    }

    /**
     * Caddy gets its log labels at deploy time, so resources that already run are not logged until a redeploy.
     */
    private function caddyRedeployNote(): ?string
    {
        return $this->server->proxyType() === ProxyTypes::CADDY->value
            ? 'Caddy logs a resource only after you redeploy it.'
            : null;
    }

    private function toggleMessage(bool $enabled, bool $proxyRestarted): string
    {
        $message = $this->proxyToggleMessage($enabled, $proxyRestarted);
        $caddyRedeployNote = $this->caddyRedeployNote();

        return $enabled && $caddyRedeployNote !== null ? "{$message} {$caddyRedeployNote}" : $message;
    }

    private function proxyToggleMessage(bool $enabled, bool $proxyRestarted): string
    {
        $state = $enabled ? 'enabled' : 'disabled';

        if ($proxyRestarted) {
            return "Traffic analytics {$state}. Restarting proxy and Sentinel.";
        }

        if ($this->server->hasTrafficAnalyticsProxy()) {
            return "Traffic analytics {$state}. The proxy is stopped, so the new configuration applies the next time you start it.";
        }

        return "Traffic analytics {$state}.";
    }

    private function auditContext(array $context = []): array
    {
        return array_merge([
            'team_id' => $this->server->team_id,
            'server_uuid' => $this->server->uuid,
            'server_name' => $this->server->name,
        ], $context);
    }
}