Initial commit

src/infrastructure/sovereign-cloud/sci-replication.service.ts

@@ -0,0 +1,148 @@
+// SCI Replication Service
+// Global Replication Grid (GRG) with 30s metadata hashing
+
+import prisma from '@/shared/database/prisma';
+import { createHash } from 'crypto';
+import { v4 as uuidv4 } from 'uuid';
+import { logger } from '@/infrastructure/monitoring/logger';
+
+
+const METADATA_HASH_INTERVAL = 30000; // 30 seconds
+
+export interface ReplicationRequest {
+  zoneId: string;
+  targetZoneId: string;
+  replicationType: 'metadata' | 'full' | 'incremental';
+}
+
+export class SciReplicationService {
+  private hashIntervals: Map<string, NodeJS.Timeout> = new Map();
+
+  /**
+   * Start replication between zones
+   */
+  async startReplication(request: ReplicationRequest): Promise<{ replicationId: string }> {
+    const replicationId = `REP-${uuidv4()}`;
+
+    // Create replication record
+    await prisma.sovereignReplication.create({
+      data: {
+        replicationId,
+        zoneId: request.zoneId,
+        targetZoneId: request.targetZoneId,
+        replicationType: request.replicationType,
+        metadataHash: '',
+        lastHashTime: new Date(),
+        status: 'active',
+      },
+    });
+
+    // Start metadata hashing interval
+    this.startMetadataHashing(replicationId, request.zoneId);
+
+    logger.info('SCI: Started replication', {
+      replicationId,
+      zoneId: request.zoneId,
+      targetZoneId: request.targetZoneId,
+      replicationType: request.replicationType,
+    });
+
+    return { replicationId };
+  }
+
+  /**
+   * Start metadata hashing every 30 seconds
+   */
+  private startMetadataHashing(replicationId: string, zoneId: string): void {
+    const interval = setInterval(async () => {
+      try {
+        await this.updateMetadataHash(replicationId, zoneId);
+      } catch (error) {
+        logger.error('SCI: Metadata hashing failed', { error, replicationId, zoneId });
+      }
+    }, METADATA_HASH_INTERVAL);
+
+    this.hashIntervals.set(replicationId, interval);
+  }
+
+  /**
+   * Update metadata hash
+   */
+  private async updateMetadataHash(replicationId: string, zoneId: string): Promise<void> {
+    // Get zone metadata
+    const zone = await prisma.sovereignComputeZone.findUnique({
+      where: { zoneId },
+      include: {
+        contracts: true,
+        attestations: {
+          where: { status: 'verified' },
+        },
+      },
+    });
+
+    if (!zone) {
+      throw new Error('Zone not found');
+    }
+
+    // Create metadata object
+    const metadata = {
+      zoneId: zone.zoneId,
+      status: zone.status,
+      contractCount: zone.contracts.length,
+      verifiedAttestationCount: zone.attestations.length,
+      timestamp: new Date().toISOString(),
+    };
+
+    // Calculate hash
+    const metadataString = JSON.stringify(metadata);
+    const metadataHash = createHash('sha256').update(metadataString).digest('hex');
+
+    // Update replication record
+    await prisma.sovereignReplication.update({
+      where: { replicationId },
+      data: {
+        metadataHash,
+        lastHashTime: new Date(),
+      },
+    });
+
+    logger.debug('SCI: Updated metadata hash', { replicationId, metadataHash });
+  }
+
+  /**
+   * Stop replication
+   */
+  async stopReplication(replicationId: string): Promise<void> {
+    // Stop hashing interval
+    const interval = this.hashIntervals.get(replicationId);
+    if (interval) {
+      clearInterval(interval);
+      this.hashIntervals.delete(replicationId);
+    }
+
+    // Update replication status
+    await prisma.sovereignReplication.update({
+      where: { replicationId },
+      data: { status: 'paused' },
+    });
+
+    logger.info('SCI: Stopped replication', { replicationId });
+  }
+
+  /**
+   * Get replication status
+   */
+  async getReplicationStatus(replicationId: string) {
+    const replication = await prisma.sovereignReplication.findUnique({
+      where: { replicationId },
+      include: {
+        zone: true,
+      },
+    });
+
+    return replication;
+  }
+}
+
+export const sciReplicationService = new SciReplicationService();
+