Multi-tenant SaaS

import { defineEnv, z } from "nviron";

export const env = defineEnv({
  // Application
  APP_NAME: z.string(),
  APP_URL: z.string().url(),

  // Multi-tenant Database
  DATABASE_URL: z.string().url(),
  TENANT_DATABASE_PREFIX: z.string().default("tenant_"),
  MAX_TENANTS_PER_DB: z.coerce.number().int().default(100),

  // Tenant Isolation
  TENANT_ID_HEADER: z.string().default("x-tenant-id"),
  SUBDOMAIN_ROUTING: z.coerce.boolean().default(true),

  // Subscription & Billing
  STRIPE_SECRET_KEY: z.string().startsWith("sk_"),
  STRIPE_WEBHOOK_SECRET: z.string().startsWith("whsec_"),
  TRIAL_PERIOD_DAYS: z.coerce.number().int().default(14),

  // Feature Flags per Plan
  FREE_PLAN_MAX_USERS: z.coerce.number().int().default(5),
  PRO_PLAN_MAX_USERS: z.coerce.number().int().default(50),
  ENTERPRISE_PLAN_MAX_USERS: z.coerce.number().int().default(10000),

  // Storage per Tenant
  S3_BUCKET_PREFIX: z.string().default("tenant-"),
  MAX_STORAGE_PER_TENANT_GB: z.coerce.number().int().default(10),

  // Rate Limiting per Tenant
  RATE_LIMIT_FREE_TIER: z.coerce.number().int().default(100),
  RATE_LIMIT_PRO_TIER: z.coerce.number().int().default(1000),
  RATE_LIMIT_ENTERPRISE_TIER: z.coerce.number().int().default(10000),
});