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'use server'

import { revalidateTag } from 'next/cache';
import { db } from '@/lib/prisma';

// Server Action: VIP Private Yacht & Heli Concierge Booking
export async function dispatchCharterHold(
  charterId: string, 
  clientUid: string, 
  currency: 'AED' | 'USD'
) {
  const holdSession = await db.$transaction(async (tx) => {
    const asset = await tx.vessel.findUniqueOrThrow({ where: { id: charterId } });
    if (!asset.isAvailable) throw new Error('Asset already reserved');
    
    return tx.bookingReservation.create({
      data: { charterId, clientUid, status: 'ESCROW_HELD', expiresAt: calcHoldExpiry() }
    });
  });

  revalidateTag(`vessel-${charterId}`);
  return { ok: true, reservationCode: holdSession.id };
}

// Multi-Tenant PostgreSQL Schema with Row-Level Security (RLS)
datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

model EnterpriseAccount {
  id           String       @id @default(uuid())
  legalName    String
  tradeLicense String       @unique // UAE DED / Freezone registered number
  taxTrnNumber String       // Federal Tax Authority (FTA) 15-digit TRN
  subscription SaaSTier     @default(ENTERPRISE)
  workspaces   Workspace[]
  createdAt    DateTime     @default(now())

  @@index([tradeLicense, taxTrnNumber])
}