feat: add email domains (#1895)

Implemented Email Domains which allows Platform/Enterprise customers to
send emails to recipients using their custom emails.

packages/trpc/server/enterprise-router/create-organisation-email-domain.ts

@@ -0,0 +1,66 @@
+import { createEmailDomain } from '@documenso/ee/server-only/lib/create-email-domain';
+import { IS_BILLING_ENABLED } from '@documenso/lib/constants/app';
+import { ORGANISATION_MEMBER_ROLE_PERMISSIONS_MAP } from '@documenso/lib/constants/organisations';
+import { AppError, AppErrorCode } from '@documenso/lib/errors/app-error';
+import { buildOrganisationWhereQuery } from '@documenso/lib/utils/organisations';
+import { prisma } from '@documenso/prisma';
+
+import { authenticatedProcedure } from '../trpc';
+import {
+  ZCreateOrganisationEmailDomainRequestSchema,
+  ZCreateOrganisationEmailDomainResponseSchema,
+} from './create-organisation-email-domain.types';
+
+export const createOrganisationEmailDomainRoute = authenticatedProcedure
+  .input(ZCreateOrganisationEmailDomainRequestSchema)
+  .output(ZCreateOrganisationEmailDomainResponseSchema)
+  .mutation(async ({ input, ctx }) => {
+    const { organisationId, domain } = input;
+    const { user } = ctx;
+
+    ctx.logger.info({
+      input: {
+        organisationId,
+        domain,
+      },
+    });
+
+    if (!IS_BILLING_ENABLED()) {
+      throw new AppError(AppErrorCode.INVALID_REQUEST, {
+        message: 'Billing is not enabled',
+      });
+    }
+
+    const organisation = await prisma.organisation.findFirst({
+      where: buildOrganisationWhereQuery({
+        organisationId,
+        userId: user.id,
+        roles: ORGANISATION_MEMBER_ROLE_PERMISSIONS_MAP['MANAGE_ORGANISATION'],
+      }),
+      include: {
+        emailDomains: true,
+        organisationClaim: true,
+      },
+    });
+
+    if (!organisation) {
+      throw new AppError(AppErrorCode.UNAUTHORIZED);
+    }
+
+    if (!organisation.organisationClaim.flags.emailDomains) {
+      throw new AppError(AppErrorCode.INVALID_BODY, {
+        message: 'Email domains are not enabled for this organisation',
+      });
+    }
+
+    if (organisation.emailDomains.length >= 100) {
+      throw new AppError(AppErrorCode.INVALID_BODY, {
+        message: 'You have reached the maximum number of email domains',
+      });
+    }
+
+    return await createEmailDomain({
+      domain,
+      organisationId,
+    });
+  });