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Fix live tape scroll hold and lazy history

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This commit is contained in:
dirtydishes 2026-05-16 14:23:51 -04:00
parent eaddf4b7a0
commit 39fb5ce9f1
6 changed files with 332 additions and 75 deletions
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27
apps/web/app/terminal.test.ts
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@ -164,6 +164,7 @@ describe("live manifest", () => {
expect(optionsSubscription?.underlying_ids).toEqual(["AAPL"]);
expect(optionsSubscription?.option_contract_id).toBe("AAPL-2025-01-17-200-C");
expect(optionsSubscription?.snapshot_limit).toBe(100);
expect(equitiesSubscription?.underlying_ids).toEqual(["AAPL"]);
});
@ -635,23 +636,23 @@ describe("live tape history helpers", () => {
expect(next.map((item) => item.trace_id)).toEqual(["existing", "older-1"]);
});
it("keeps scoped option and equity history on the normal retention cap", () => {
it("keeps option and equity history effectively unbounded while scrolling", () => {
expect(
getLiveHistoryRetentionCap({
channel: "options",
underlying_ids: ["AAPL"],
option_contract_id: "AAPL-2025-01-17-200-C"
} as any)
).toBeGreaterThan(0);
).toBe(0);
expect(
getLiveHistoryRetentionCap({
channel: "equities",
underlying_ids: ["AAPL"]
} as any)
).toBeGreaterThan(0);
).toBe(0);
});
it("keeps auto-hydrating scoped live history while next_before exists", () => {
it("does not auto-hydrate scoped live history before the scroll gate is reached", () => {
const manifest = getLiveManifest(
"/tape",
"AAPL",
@ -669,18 +670,12 @@ describe("live tape history helpers", () => {
expect(
getScopedLiveAutoHydrationChannels(true, "/tape", manifest, historyCursors, {})
).toEqual(["options", "equities"]);
).toEqual([]);
expect(
getScopedLiveAutoHydrationChannels(true, "/tape", manifest, historyCursors, {
[getLiveSubscriptionKey(manifest.find((subscription) => subscription.channel === "options")!)]: true
})
).toEqual(["equities"]);
expect(
getScopedLiveAutoHydrationChannels(true, "/tape", manifest, {
...historyCursors,
[getLiveSubscriptionKey(manifest.find((subscription) => subscription.channel === "equities")!)]: null
}, {})
).toEqual(["options"]);
).toEqual([]);
});
it("restores the same anchor key after live insertions at the top", () => {
@ -864,9 +859,15 @@ describe("signals helpers", () => {
expect(getAlertWindowAnchorTs([], 42)).toBe(42);
});
it("returns connected/stale live status labels without live wording", () => {
it("returns connected/held/stale live status labels without live wording", () => {
expect(statusLabel("connected", false, "live")).toBe("Connected");
expect(statusLabel("connected", true, "live")).toBe("Held");
expect(statusLabel("stale", false, "live")).toBe("Feed behind");
expect(statusLabel("stale", true, "live")).toBe("Feed behind");
});
it("keeps replay pause wording on replay tapes", () => {
expect(statusLabel("connected", true, "replay")).toBe("Paused");
});
it("treats healthy scoped channels as connected even when no matching rows are visible", () => {