fileshare (#5414)

Co-authored-by: ConnorYoh <[email protected]>
Co-authored-by: Connor Yoh <[email protected]>
Co-authored-by: EthanHealy01 <[email protected]>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

frontend/src/core/services/serverStorageUpload.ts

@@ -0,0 +1,125 @@
+import apiClient from '@app/services/apiClient';
+import { fileStorage } from '@app/services/fileStorage';
+import { buildHistoryBundle, buildSharePackage } from '@app/services/serverStorageBundle';
+import type { FileId } from '@app/types/file';
+import type { StirlingFileStub } from '@app/types/fileContext';
+
+function resolveUpdatedAt(value: unknown): number {
+  if (!value) {
+    return Date.now();
+  }
+  if (typeof value === 'number') {
+    return Number.isFinite(value) ? value : Date.now();
+  }
+  const parsed = new Date(String(value)).getTime();
+  return Number.isFinite(parsed) ? parsed : Date.now();
+}
+
+export async function uploadHistoryChain(
+  originalFileId: FileId,
+  existingRemoteId?: number
+): Promise<{ remoteId: number; updatedAt: number; chain: StirlingFileStub[] }> {
+  const chain = await fileStorage.getHistoryChainStubs(originalFileId);
+  if (chain.length === 0) {
+    throw new Error('No history chain found.');
+  }
+
+  const finalStub =
+    chain.slice().reverse().find((stub) => stub.isLeaf !== false) || chain[chain.length - 1];
+  const finalFile = await fileStorage.getStirlingFile(finalStub.id);
+  if (!finalFile) {
+    throw new Error('Missing final file data for sharing.');
+  }
+
+  const { bundleFile, manifest } = await buildHistoryBundle(originalFileId);
+  const auditLog = new File([JSON.stringify(manifest, null, 2)], 'audit-log.json', {
+    type: 'application/json',
+    lastModified: Date.now(),
+  });
+  const formData = new FormData();
+  formData.append('file', finalFile, finalFile.name);
+  formData.append('historyBundle', bundleFile, bundleFile.name);
+  formData.append('auditLog', auditLog, auditLog.name);
+
+  if (existingRemoteId) {
+    const response = await apiClient.put(`/api/v1/storage/files/${existingRemoteId}`, formData);
+    const updatedAt = resolveUpdatedAt(response.data?.updatedAt);
+    return { remoteId: existingRemoteId, updatedAt, chain };
+  }
+
+  const response = await apiClient.post('/api/v1/storage/files', formData);
+  const remoteId = response.data?.id as number | undefined;
+  if (!remoteId) {
+    throw new Error('Missing stored file ID in response.');
+  }
+
+  const updatedAt = resolveUpdatedAt(response.data?.updatedAt);
+  return { remoteId, updatedAt, chain };
+}
+
+export async function uploadHistoryChains(
+  originalFileIds: FileId[],
+  existingRemoteId?: number
+): Promise<{ remoteId: number; updatedAt: number; chain: StirlingFileStub[] }> {
+  const uniqueRoots = Array.from(new Set(originalFileIds));
+  const chainMap = new Map<FileId, StirlingFileStub[]>();
+  const combinedChain: StirlingFileStub[] = [];
+  const seenIds = new Set<FileId>();
+  const leafStubs: StirlingFileStub[] = [];
+
+  for (const rootId of uniqueRoots) {
+    const chain = await fileStorage.getHistoryChainStubs(rootId);
+    if (chain.length === 0) {
+      throw new Error('No history chain found.');
+    }
+    chainMap.set(rootId, chain);
+    const finalStub =
+      chain.slice().reverse().find((stub) => stub.isLeaf !== false) || chain[chain.length - 1];
+    if (finalStub) {
+      leafStubs.push(finalStub);
+    }
+    for (const stub of chain) {
+      if (!seenIds.has(stub.id as FileId)) {
+        seenIds.add(stub.id as FileId);
+        combinedChain.push(stub);
+      }
+    }
+  }
+
+  let shareFile: File;
+  if (leafStubs.length === 1) {
+    const finalFile = await fileStorage.getStirlingFile(leafStubs[0].id);
+    if (!finalFile) {
+      throw new Error('Missing final file data for sharing.');
+    }
+    shareFile = finalFile;
+  } else {
+    const { bundleFile } = await buildSharePackage(leafStubs);
+    shareFile = bundleFile;
+  }
+
+  const { bundleFile, manifest } = await buildHistoryBundle(uniqueRoots);
+  const auditLog = new File([JSON.stringify(manifest, null, 2)], 'audit-log.json', {
+    type: 'application/json',
+    lastModified: Date.now(),
+  });
+  const formData = new FormData();
+  formData.append('file', shareFile, shareFile.name);
+  formData.append('historyBundle', bundleFile, bundleFile.name);
+  formData.append('auditLog', auditLog, auditLog.name);
+
+  if (existingRemoteId) {
+    const response = await apiClient.put(`/api/v1/storage/files/${existingRemoteId}`, formData);
+    const updatedAt = resolveUpdatedAt(response.data?.updatedAt);
+    return { remoteId: existingRemoteId, updatedAt, chain: combinedChain };
+  }
+
+  const response = await apiClient.post('/api/v1/storage/files', formData);
+  const remoteId = response.data?.id as number | undefined;
+  if (!remoteId) {
+    throw new Error('Missing stored file ID in response.');
+  }
+
+  const updatedAt = resolveUpdatedAt(response.data?.updatedAt);
+  return { remoteId, updatedAt, chain: combinedChain };
+}