fix: gate rectification rollout to canary users

2026-07-21 15:19:03 +08:00
parent 6827e0ca45
commit 576ebf9bf2
8 changed files with 318 additions and 34 deletions
@@ -0,0 +1,87 @@
+export type ConversationalRectificationCreationAudience =
+  | "paused"
+  | "smoke_only"
+  | "public";
+
+export type ConversationalRectificationCreationPolicyInput = Readonly<{
+  userId?: string | null;
+  creationEnabled?: string;
+  migrationsReady?: string;
+  deploymentSha?: string;
+  smokeSha?: string;
+  syntheticSmokeUserIds?: string;
+}>;
+
+export type ConversationalRectificationCreationPolicy = Readonly<{
+  audience: ConversationalRectificationCreationAudience;
+  allowNewCaseCreation: boolean;
+  smokeMatchesDeployment: boolean;
+}>;
+
+const fullDeploymentSha = /^[0-9a-f]{40}$/;
+const canonicalUuid = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/;
+
+export function conversationalRectificationCreationPolicy(
+  input: ConversationalRectificationCreationPolicyInput,
+): ConversationalRectificationCreationPolicy {
+  const deploymentSha = input.deploymentSha?.trim() ?? "";
+  const smokeSha = input.smokeSha?.trim() ?? "";
+  const baseGatesOpen = input.creationEnabled?.trim().toLowerCase() === "true"
+    && input.migrationsReady?.trim().toLowerCase() === "true"
+    && fullDeploymentSha.test(deploymentSha);
+  if (!baseGatesOpen) {
+    return {
+      audience: "paused",
+      allowNewCaseCreation: false,
+      smokeMatchesDeployment: false,
+    };
+  }
+
+  const smokeMatchesDeployment = smokeSha === deploymentSha;
+  if (smokeMatchesDeployment) {
+    return {
+      audience: "public",
+      allowNewCaseCreation: true,
+      smokeMatchesDeployment: true,
+    };
+  }
+
+  const smokeUsers = new Set(
+    (input.syntheticSmokeUserIds ?? "")
+      .split(",")
+      .map((value) => value.trim())
+      .filter((value) => canonicalUuid.test(value)),
+  );
+  if (smokeUsers.size === 0) {
+    return {
+      audience: "paused",
+      allowNewCaseCreation: false,
+      smokeMatchesDeployment: false,
+    };
+  }
+  return {
+    audience: "smoke_only",
+    allowNewCaseCreation: input.userId != null && smokeUsers.has(input.userId),
+    smokeMatchesDeployment: false,
+  };
+}
+
+export function conversationalRectificationCreationPolicyFromEnvironment(
+  userId?: string | null,
+): ConversationalRectificationCreationPolicy {
+  return conversationalRectificationCreationPolicy({
+    userId,
+    creationEnabled: process.env.RECTIFICATION_V3_CREATE_ENABLED,
+    migrationsReady: process.env.RECTIFICATION_V3_MIGRATIONS_READY,
+    deploymentSha: conversationalRectificationDeploymentShaFromEnvironment(),
+    smokeSha: process.env.RECTIFICATION_V3_SYNTHETIC_SMOKE_SHA,
+    syntheticSmokeUserIds: process.env.RECTIFICATION_V3_SYNTHETIC_SMOKE_USER_IDS,
+  });
+}
+
+export function conversationalRectificationDeploymentShaFromEnvironment(): string {
+  return process.env.GITHUB_SHA
+    ?? process.env.VERCEL_GIT_COMMIT_SHA
+    ?? process.env.NEXT_PUBLIC_GIT_COMMIT
+    ?? "unknown";
+}