From 13bfc853e3128210e1e33eb78e5b725f8e9721e7 Mon Sep 17 00:00:00 2001
From: Brendan Chen <me@bchen.dev>
Date: Tue, 11 Nov 2025 12:26:22 -0800
Subject: [PATCH] Add getAverageTravelTimeSeconds in SelfUpdatingETARepository
 definition

---
 .../shuttle/eta/RedisSelfUpdatingETARepository.ts    |  6 ++++--
 .../shuttle/eta/SelfUpdatingETARepository.ts         | 12 ++++++++++++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/repositories/shuttle/eta/RedisSelfUpdatingETARepository.ts b/src/repositories/shuttle/eta/RedisSelfUpdatingETARepository.ts
index 8d26d60..7ab93ab 100644
--- a/src/repositories/shuttle/eta/RedisSelfUpdatingETARepository.ts
+++ b/src/repositories/shuttle/eta/RedisSelfUpdatingETARepository.ts
@@ -3,7 +3,7 @@ import { ETARepositoryEventName, ETARepositoryEventListener } from "./ETAGetterR
 import { SelfUpdatingETARepository } from "./SelfUpdatingETARepository";
 import { BaseRedisRepository } from "../../BaseRedisRepository";
 import { createClient, RedisClientType } from "redis";
-import { ShuttleGetterRepository } from "../ShuttleGetterRepository";
+import { ShuttleGetterRepository, ShuttleTravelTimeDataIdentifier, ShuttleTravelTimeDateFilterArguments } from "../ShuttleGetterRepository";
 import { REDIS_RECONNECT_INTERVAL } from "../../../environment";
 
 export class RedisSelfUpdatingETARepository extends BaseRedisRepository implements SelfUpdatingETARepository {
@@ -20,7 +20,9 @@ export class RedisSelfUpdatingETARepository extends BaseRedisRepository implemen
   ) {
     super(redisClient);
   }
-
+  getAverageTravelTimeSeconds(identifier: ShuttleTravelTimeDataIdentifier, dateFilter: ShuttleTravelTimeDateFilterArguments): Promise<number | undefined> {
+    throw new Error("Method not implemented.");
+  }
   startListeningForUpdates(): void {
     throw new Error("Method not implemented.");
   }
diff --git a/src/repositories/shuttle/eta/SelfUpdatingETARepository.ts b/src/repositories/shuttle/eta/SelfUpdatingETARepository.ts
index 7f2c9f0..331e1cc 100644
--- a/src/repositories/shuttle/eta/SelfUpdatingETARepository.ts
+++ b/src/repositories/shuttle/eta/SelfUpdatingETARepository.ts
@@ -1,3 +1,4 @@
+import { ShuttleTravelTimeDataIdentifier, ShuttleTravelTimeDateFilterArguments } from "../ShuttleGetterRepository";
 import { ETAGetterRepository } from "./ETAGetterRepository";
 
 export interface SelfUpdatingETARepository extends ETAGetterRepository {
@@ -6,4 +7,15 @@ export interface SelfUpdatingETARepository extends ETAGetterRepository {
    * shuttle updates
    */
   startListeningForUpdates(): void;
+
+  /**
+   * Get average travel time between two stops based on historical data.
+   * Returns undefined if no data exists for the specified time range.
+   * @param identifier - The route and stop IDs to query
+   * @param dateFilter - The date range to filter data
+   */
+  getAverageTravelTimeSeconds(
+    identifier: ShuttleTravelTimeDataIdentifier,
+    dateFilter: ShuttleTravelTimeDateFilterArguments
+  ): Promise<number | undefined>;
 }