Rebuild local Blender WASM environment and recovery evidence

web/protocol/corrective-generic-family-command.ts

@@ -0,0 +1,40 @@
+import { CorrectiveCommandRegistry } from "./corrective-command-registry";
+import { CorrectiveCaseRunnerError, MainMutationCommand } from "./corrective-case-runner";
+import { CORRECTIVE_FAMILIES, CorrectiveFamily } from "./corrective-family-runner";
+import { InMemoryMainStore, runAtomicMutation } from "./corrective-main-transaction";
+
+export interface GenericFamilyMain {
+  family: CorrectiveFamily;
+  value: string;
+}
+
+const VALUE = /^[A-Za-z0-9._:-]{1,128}$/u;
+
+function payload(command: MainMutationCommand): { family: CorrectiveFamily; value: string } {
+  const input = command.payload;
+  if (typeof input.family !== "string" || !CORRECTIVE_FAMILIES.includes(input.family as CorrectiveFamily) || typeof input.value !== "string" || !VALUE.test(input.value) || Object.keys(input).some((key) => !["family", "value"].includes(key))) {
+    throw new CorrectiveCaseRunnerError("COMMAND_MALFORMED", "family payload must contain only a bounded family and value");
+  }
+  return { family: input.family as CorrectiveFamily, value: input.value };
+}
+
+export function createGenericFamilyMain(family: CorrectiveFamily, value = "before", revision = 1, dirty = false): InMemoryMainStore<GenericFamilyMain> {
+  return new InMemoryMainStore({ family, value }, revision, dirty, (state) => ({ ...state }));
+}
+
+export function createGenericFamilyRegistry(main: InMemoryMainStore<GenericFamilyMain>): CorrectiveCommandRegistry {
+  return new CorrectiveCommandRegistry().register({
+    commandType: "familySetState",
+    targetKinds: ["DATABLOCK", "SCENE"],
+    authorizations: ["USER_EDIT", "SYSTEM"],
+    execute: async (command) => {
+      const change = payload(command);
+      return runAtomicMutation(main, command, (draft) => {
+        if (draft.family !== change.family) throw new CorrectiveCaseRunnerError("INVALID_CONTEXT", "family does not match Main");
+        const previous = draft.value;
+        draft.value = change.value;
+        return { delta: { family: change.family, previous, value: change.value }, persistence: { dirty: true } };
+      });
+    },
+  });
+}