Первая версия

src/core/ChangeSetValidator.js

@@ -0,0 +1,38 @@
+import { PathUtils } from "./PathUtils.js";
+
+export class ChangeSetValidator {
+  validate(changeset) {
+    if (!Array.isArray(changeset)) throw new Error("changeset must be array");
+    const normalized = [];
+
+    for (const item of changeset) {
+      if (!item || typeof item !== "object") throw new Error("invalid changeset item");
+      if (!["create", "update", "delete"].includes(item.op)) throw new Error("invalid op");
+      const path = PathUtils.normalizeRelative(item.path);
+
+      if (item.op === "create") {
+        if (typeof item.proposed_content !== "string") throw new Error("create needs proposed_content");
+      }
+
+      if (item.op === "update") {
+        if (typeof item.base_hash !== "string") throw new Error("update needs base_hash");
+        if (typeof item.proposed_content !== "string") throw new Error("update needs proposed_content");
+      }
+
+      if (item.op === "delete") {
+        if (typeof item.base_hash !== "string") throw new Error("delete needs base_hash");
+        if ("proposed_content" in item) throw new Error("delete forbids proposed_content");
+      }
+
+      normalized.push({
+        op: item.op,
+        path,
+        base_hash: item.base_hash || null,
+        proposed_content: item.proposed_content ?? null,
+        reason: item.reason || ""
+      });
+    }
+
+    return normalized;
+  }
+}