feat: allow multipart requests for public api

Adds support for multipart/form-data requests in the public api
allowing documents to be uploaded without having to perform a secondary
request.

Need to rollout further endpoints for envelopes and templates.

Need to change how we store files to not use `putFileServerSide`

packages/trpc/server/document-router/create-document-formdata.ts

@@ -0,0 +1,136 @@
+import { EnvelopeType } from '@prisma/client';
+
+import { getServerLimits } from '@documenso/ee/server-only/limits/server';
+import { AppError, AppErrorCode } from '@documenso/lib/errors/app-error';
+import { createEnvelope } from '@documenso/lib/server-only/envelope/create-envelope';
+import { putPdfFileServerSide } from '@documenso/lib/universal/upload/put-file.server';
+import { mapSecondaryIdToDocumentId } from '@documenso/lib/utils/envelope';
+import { prisma } from '@documenso/prisma';
+
+import { authenticatedProcedure } from '../trpc';
+import {
+  ZCreateDocumentFormDataRequestSchema,
+  ZCreateDocumentFormDataResponseSchema,
+  createDocumentFormDataMeta,
+} from './create-document-formdata.types';
+
+/**
+ * Temporary endpoint for V2 Beta until we allow passthrough documents on create.
+ *
+ * @public
+ */
+export const createDocumentFormDataRoute = authenticatedProcedure
+  .meta(createDocumentFormDataMeta)
+  .input(ZCreateDocumentFormDataRequestSchema)
+  .output(ZCreateDocumentFormDataResponseSchema)
+  .mutation(async ({ input, ctx }) => {
+    const { teamId, user } = ctx;
+
+    const { payload, file } = input;
+
+    const {
+      title,
+      externalId,
+      visibility,
+      globalAccessAuth,
+      globalActionAuth,
+      recipients,
+      meta,
+      folderId,
+      attachments,
+    } = payload;
+
+    const { remaining } = await getServerLimits({ userId: user.id, teamId });
+
+    if (remaining.documents <= 0) {
+      throw new AppError(AppErrorCode.LIMIT_EXCEEDED, {
+        message: 'You have reached your document limit for this month. Please upgrade your plan.',
+        statusCode: 400,
+      });
+    }
+
+    const documentData = await putPdfFileServerSide(file);
+
+    const createdEnvelope = await createEnvelope({
+      userId: ctx.user.id,
+      teamId,
+      normalizePdf: false, // Not normalizing because of presigned URL.
+      internalVersion: 1,
+      data: {
+        type: EnvelopeType.DOCUMENT,
+        title,
+        externalId,
+        visibility,
+        globalAccessAuth,
+        globalActionAuth,
+        recipients: (recipients || []).map((recipient) => ({
+          ...recipient,
+          fields: (recipient.fields || []).map((field) => ({
+            ...field,
+            page: field.pageNumber,
+            positionX: field.pageX,
+            positionY: field.pageY,
+            documentDataId: documentData.id,
+          })),
+        })),
+        folderId,
+        envelopeItems: [
+          {
+            // If you ever allow more than 1 in this endpoint, make sure to use `maximumEnvelopeItemCount` to limit it.
+            documentDataId: documentData.id,
+          },
+        ],
+      },
+      attachments,
+      meta: {
+        ...meta,
+        emailSettings: meta?.emailSettings ?? undefined,
+      },
+      requestMetadata: ctx.metadata,
+    });
+
+    const envelopeItems = await prisma.envelopeItem.findMany({
+      where: {
+        envelopeId: createdEnvelope.id,
+      },
+      include: {
+        documentData: true,
+      },
+    });
+
+    const legacyDocumentId = mapSecondaryIdToDocumentId(createdEnvelope.secondaryId);
+
+    const firstDocumentData = envelopeItems[0].documentData;
+
+    if (!firstDocumentData) {
+      throw new Error('Document data not found');
+    }
+
+    return {
+      document: {
+        ...createdEnvelope,
+        envelopeId: createdEnvelope.id,
+        documentDataId: firstDocumentData.id,
+        documentData: {
+          ...firstDocumentData,
+          envelopeItemId: envelopeItems[0].id,
+        },
+        documentMeta: {
+          ...createdEnvelope.documentMeta,
+          documentId: legacyDocumentId,
+        },
+        id: legacyDocumentId,
+        fields: createdEnvelope.fields.map((field) => ({
+          ...field,
+          documentId: legacyDocumentId,
+          templateId: null,
+        })),
+        recipients: createdEnvelope.recipients.map((recipient) => ({
+          ...recipient,
+          documentId: legacyDocumentId,
+          templateId: null,
+        })),
+      },
+      folder: createdEnvelope.folder, // Todo: Remove this prior to api-v2 release.
+    };
+  });