sam-api/app/Services/PushNotificationService.php

<?php

namespace App\Services;

use App\Models\PushDeviceToken;
use App\Models\PushNotificationSetting;
use Illuminate\Support\Facades\Log;

class PushNotificationService extends Service
{
    /**
     * FCM 토큰 등록/갱신
     */
    public function registerToken(array $data): PushDeviceToken
    {
        $tenantId = $this->tenantId();
        $userId = $this->apiUserId();

        // 동일 토큰이 있으면 업데이트, 없으면 생성
        $token = PushDeviceToken::withoutGlobalScopes()
            ->where('token', $data['token'])
            ->first();

        if ($token) {
            // 기존 토큰 업데이트 (다른 사용자의 토큰이면 이전 것은 비활성화)
            if ($token->user_id !== $userId || $token->tenant_id !== $tenantId) {
                $token->update([
                    'tenant_id' => $tenantId,
                    'user_id' => $userId,
                    'platform' => $data['platform'],
                    'device_name' => $data['device_name'] ?? null,
                    'app_version' => $data['app_version'] ?? null,
                    'is_active' => true,
                    'last_used_at' => now(),
                    'deleted_at' => null,
                ]);
            } else {
                $token->update([
                    'platform' => $data['platform'],
                    'device_name' => $data['device_name'] ?? null,
                    'app_version' => $data['app_version'] ?? null,
                    'is_active' => true,
                    'last_used_at' => now(),
                ]);
            }
        } else {
            // 새 토큰 생성
            $token = PushDeviceToken::create([
                'tenant_id' => $tenantId,
                'user_id' => $userId,
                'token' => $data['token'],
                'platform' => $data['platform'],
                'device_name' => $data['device_name'] ?? null,
                'app_version' => $data['app_version'] ?? null,
                'is_active' => true,
                'last_used_at' => now(),
            ]);
        }

        // 사용자 기본 알림 설정 초기화 (없는 경우)
        $this->initializeDefaultSettings($tenantId, $userId);

        Log::info('FCM token registered', [
            'user_id' => $userId,
            'platform' => $data['platform'],
            'token_id' => $token->id,
        ]);

        return $token;
    }

    /**
     * FCM 토큰 비활성화
     */
    public function unregisterToken(string $tokenValue): bool
    {
        $token = PushDeviceToken::withoutGlobalScopes()
            ->where('token', $tokenValue)
            ->first();

        if ($token) {
            $token->update(['is_active' => false]);

            Log::info('FCM token unregistered', [
                'token_id' => $token->id,
            ]);

            return true;
        }

        return false;
    }

    /**
     * 사용자의 활성 토큰 목록 조회
     */
    public function getUserTokens(?int $userId = null): array
    {
        $userId = $userId ?? $this->apiUserId();

        return PushDeviceToken::forUser($userId)
            ->active()
            ->get()
            ->toArray();
    }

    /**
     * 알림 설정 조회
     */
    public function getSettings(?int $userId = null): array
    {
        $tenantId = $this->tenantId();
        $userId = $userId ?? $this->apiUserId();

        $settings = PushNotificationSetting::where('tenant_id', $tenantId)
            ->forUser($userId)
            ->get()
            ->keyBy('notification_type');

        // 모든 알림 유형에 대한 설정 반환 (없으면 기본값)
        $result = [];
        foreach (PushNotificationSetting::getAllTypes() as $type) {
            if ($settings->has($type)) {
                $result[$type] = $settings->get($type)->toArray();
            } else {
                $result[$type] = [
                    'notification_type' => $type,
                    'is_enabled' => true,
                    'sound' => $this->getDefaultSound($type),
                    'vibrate' => true,
                    'show_preview' => true,
                ];
            }
        }

        return $result;
    }

    /**
     * 알림 설정 업데이트
     */
    public function updateSettings(array $settings): array
    {
        $tenantId = $this->tenantId();
        $userId = $this->apiUserId();

        $updated = [];
        foreach ($settings as $setting) {
            $record = PushNotificationSetting::updateOrCreate(
                [
                    'tenant_id' => $tenantId,
                    'user_id' => $userId,
                    'notification_type' => $setting['notification_type'],
                ],
                [
                    'is_enabled' => $setting['is_enabled'],
                    'sound' => $setting['sound'] ?? $this->getDefaultSound($setting['notification_type']),
                    'vibrate' => $setting['vibrate'] ?? true,
                    'show_preview' => $setting['show_preview'] ?? true,
                ]
            );
            $updated[] = $record->toArray();
        }

        return $updated;
    }

    /**
     * 특정 사용자에게 푸시 알림 전송 (FCM HTTP v1 API)
     */
    public function sendToUser(int $userId, string $notificationType, array $notification): bool
    {
        $tenantId = $this->tenantIdOrNull() ?? 0;

        // 사용자 알림 설정 확인
        $setting = PushNotificationSetting::where('tenant_id', $tenantId)
            ->forUser($userId)
            ->ofType($notificationType)
            ->first();

        // 알림이 비활성화된 경우 전송 안함
        if ($setting && ! $setting->is_enabled) {
            Log::info('Push notification skipped (disabled)', [
                'user_id' => $userId,
                'type' => $notificationType,
            ]);

            return false;
        }

        // 사용자의 활성 토큰 조회
        $tokens = PushDeviceToken::withoutGlobalScopes()
            ->forUser($userId)
            ->active()
            ->get();

        if ($tokens->isEmpty()) {
            Log::info('Push notification skipped (no tokens)', [
                'user_id' => $userId,
            ]);

            return false;
        }

        // 알림음 결정
        $sound = $setting?->sound ?? $this->getDefaultSound($notificationType);

        $successCount = 0;
        foreach ($tokens as $token) {
            $result = $this->sendFcmMessage($token, $notification, $sound, $notificationType);
            if ($result) {
                $successCount++;
            }
        }

        return $successCount > 0;
    }

    /**
     * FCM 메시지 전송 (실제 구현)
     */
    protected function sendFcmMessage(
        PushDeviceToken $token,
        array $notification,
        string $sound,
        string $notificationType
    ): bool {
        // TODO: FCM HTTP v1 API 구현
        // 현재는 로그만 기록
        Log::info('FCM message would be sent', [
            'token_id' => $token->id,
            'platform' => $token->platform,
            'title' => $notification['title'] ?? '',
            'body' => $notification['body'] ?? '',
            'sound' => $sound,
            'type' => $notificationType,
        ]);

        return true;
    }

    /**
     * 기본 알림 설정 초기화
     */
    protected function initializeDefaultSettings(int $tenantId, int $userId): void
    {
        foreach (PushNotificationSetting::getAllTypes() as $type) {
            PushNotificationSetting::firstOrCreate(
                [
                    'tenant_id' => $tenantId,
                    'user_id' => $userId,
                    'notification_type' => $type,
                ],
                [
                    'is_enabled' => true,
                    'sound' => $this->getDefaultSound($type),
                    'vibrate' => true,
                    'show_preview' => true,
                ]
            );
        }
    }

    /**
     * 알림 유형별 기본 알림음
     */
    protected function getDefaultSound(string $type): string
    {
        return match ($type) {
            PushNotificationSetting::TYPE_DEPOSIT => PushNotificationSetting::SOUND_DEPOSIT,
            PushNotificationSetting::TYPE_WITHDRAWAL => PushNotificationSetting::SOUND_WITHDRAWAL,
            PushNotificationSetting::TYPE_ORDER => PushNotificationSetting::SOUND_ORDER,
            PushNotificationSetting::TYPE_APPROVAL => PushNotificationSetting::SOUND_APPROVAL,
            default => PushNotificationSetting::SOUND_DEFAULT,
        };
    }
}