refactor: isolate operation ranges and intents

src/modules/investments/operations/domain/operations-sync-plan.ts

@@ -106,6 +106,24 @@ export function uncoveredOperationIntervals(
   });
 }
 
+export function confirmedOperationRanges(
+  targets: OperationInterval[],
+  coverage: OperationInterval[],
+): Omit<OperationInterval, 'instrumentUid'>[] {
+  return targets.flatMap((target) => coverage
+    .filter((row) =>
+      row.accountId === target.accountId &&
+      (!row.instrumentUid || row.instrumentUid === target.instrumentUid) &&
+      row.from < target.to && target.from < row.to,
+    )
+    .map((row) => ({
+      accountId: target.accountId,
+      from: new Date(Math.max(row.from.valueOf(), target.from.valueOf())),
+      to: new Date(Math.min(row.to.valueOf(), target.to.valueOf())),
+    })),
+  );
+}
+
 export type OperationCoverage = OperationInterval & {
   asOf: Date;
   fetchedAt: Date;