fix: preserve paid hosting deadlines, quotas and review snapshots

src/core/Repository.ts

@@ -708,6 +708,20 @@ export default class Repository {
           logger.info("up to date", { repoId: this._model.repoId });
           return;
         }
+        // Admit the pinned replacement before changing or deleting the published snapshot.
+        if (config.BILLING_ENABLED && this.model.billingManaged) {
+          const candidateModel = new AnonymizedRepositoryModel(this.model.toObject());
+          candidateModel.source.commit = newCommit;
+          const candidate = new Repository(candidateModel);
+          const files = await candidate.source.getFiles();
+          try {
+            await reserveRepository(String(this.model.owner), this.repoId,
+              files.reduce((sum, file) => sum + (file.size || 0), 0), this.model.conference);
+          } catch (error) {
+            if (!opt?.force && error instanceof Error && error.message === "quota_exceeded") return;
+            throw error;
+          }
+        }
         this._model.source.commit = newCommit;
         const commitInfo = await ghRepo.getCommitInfo(newCommit, {
           accessToken: token,

src/core/billing/quotas.ts

@@ -30,8 +30,12 @@ export async function reserveRepository(owner: string, repoId: string, bytes: nu
   if (!await BillingQuota.exists({ _id: limits.scope })) {
     const existing = await RepositoryModel.find(limits.scope.startsWith("user:") ? { owner, status: { $nin: ["removed", "expired"] } }
       : limits.scope.startsWith("conference:") ? { conference, status: { $nin: ["removed", "expired"] } } : { repoId, status: { $nin: ["removed", "expired"] } })
-      .select("repoId size").lean();
-    try { await BillingQuota.create({ _id: limits.scope, allocations: existing.map(r => ({ repoId: r.repoId, bytes: r.size?.storage || 0, createdAt: new Date() })) }); }
+      .select("repoId size owner conference").lean();
+    const funded = [];
+    for (const repository of existing) {
+      if ((await allowance(String(repository.owner), repository.repoId, repository.conference)).scope === limits.scope) funded.push(repository);
+    }
+    try { await BillingQuota.create({ _id: limits.scope, allocations: funded.map(r => ({ repoId: r.repoId, bytes: r.size?.storage || 0, createdAt: new Date() })) }); }
     catch (error) { if ((error as { code?: number }).code !== 11000) throw error; }
   }
   // Only confirmed terminal repositories release capacity. Unknown reservations