feat(studio): shadow telemetry for GSAP keyframe ops (gsap_keyframe) (#1509)

* fix(studio): suppress shadow-parity false positives in timing + text

runShadowTiming: compare start/duration with a relative epsilon (1e-6)
instead of exact equality so float-precision drift (3.1 vs
3.0999999999999996, 21.36 vs 21.360000000000014) no longer flags; a real
difference (3.1 vs 3.5) still flags. trackIndex stays exact.

property:text resolver: trim both sides (snapshot.text is already trimmed)
and collapse empty-string vs absent (null) text so trailing-whitespace and
empty-vs-null no longer flag. Genuine text differences are unaffected; the
per-keystroke length lag is a caller-side debounce concern.

Adds tests for both fixes plus regression tests documenting two REAL SDK
divergences the shadow correctly surfaces (transform-origin removal no-op;
duplicate-bare-id delete resolution) — flagged, not fixed here.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(studio): shadow telemetry for GSAP keyframe ops (gsap_keyframe)

Wire the SDK shadow-parity telemetry to cover GSAP keyframe add/remove,
the primary unwired cutover signal, plus a defensive unmapped-PatchOperation
guard.

New packages/studio/src/utils/sdkShadowGsapKeyframe.ts:
- ShadowKeyframeOp + keyframeOpToEditOp: maps studio percentage-based keyframe
  ops to SDK EditOps. add -> addGsapKeyframe{position:percentage}; remove ->
  removeGsapKeyframe{keyframeIndex}, resolving percentage -> index against the
  pre-op script with ~0.001 tolerance and a no-op-on-ambiguity guard for
  duplicate-percentage keyframes (PR #1498 landmine).
- gsapKeyframeFidelityMismatches: reuses gsapFidelityMismatches for the
  tween-level diff and layers a keyframe-array comparison (which the base diff
  doesn't inspect), matched by GSAP animation id.
- runShadowGsapKeyframeFidelity: serialize-diff runner emitting op tag
  gsap_keyframe (no keyframe reader on ElementSnapshot, so no existence path).

useGsapKeyframeOps synthesizes shadowKeyframeOp for addKeyframe /
addKeyframeBatch / removeKeyframe; the commit chokepoint dispatches the
keyframe-fidelity diff alongside the existing tween-fidelity path.

sdkShadow.ts: runShadowDispatch now emits dispatched:false reason:unmapped_type
if a future PatchOperation type ever escapes patchOpsToSdkEditOps, so the gap
surfaces in telemetry instead of vanishing.

Tests: sdkShadowGsapKeyframe.test.ts (18) covers index resolution, op mapping,
the ambiguity guard, the keyframe-aware diff, the runner, and the unmapped-type
guard.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Vance Ingalls
2026-06-16 12:27:48 -07:00
committed by GitHub
co-authored by Claude Opus 4.8
parent 5aca3ad770
commit 4b4a3eb63d
6 changed files with 597 additions and 4 deletions
+27
View File
@@ -39,6 +39,16 @@ function isShadowableOp(op: PatchOperation): boolean {
return true;
}
// PatchOperation types patchOpsToSdkEditOps knows how to map. Used by
// runShadowDispatch to flag any unmapped type as visible telemetry rather than
// silently dropping it (see the unmapped_type guard there).
const MAPPED_PATCH_OP_TYPES: ReadonlySet<string> = new Set([
"inline-style",
"text-content",
"attribute",
"html-attribute",
]);
export function patchOpsToSdkEditOps(hfId: string, ops: PatchOperation[]): EditOp[] {
const result: EditOp[] = [];
const styles: Record<string, string | null> = {};
@@ -260,6 +270,23 @@ export function runShadowDispatch(
});
return;
}
// Defensive: patchOpsToSdkEditOps silently drops PatchOperation types it
// doesn't map. PatchOperation.type is a closed union today, but emit a visible
// unmapped_type event if a future type ever slips through, so the gap surfaces
// in telemetry instead of vanishing.
// Map to the type string before find, so a future unmapped type is read as a
// plain string (no object cast; find on the closed union narrows to never).
const unmappedType = ops.map((op) => op.type).find((t) => !MAPPED_PATCH_OP_TYPES.has(t));
if (unmappedType !== undefined) {
trackStudioEvent("sdk_shadow_dispatch", {
op: "property",
dispatched: false,
reason: "unmapped_type",
type: unmappedType,
mismatchCount: 0,
});
return;
}
const result = sdkShadowDispatch(session, hfId, ops);
trackStudioEvent("sdk_shadow_dispatch", {
op: "property",
@@ -0,0 +1,265 @@
import { describe, expect, it, vi, beforeEach } from "vitest";
import { openComposition } from "@hyperframes/sdk";
import {
resolveKeyframeIndexByPercentage,
keyframeOpToEditOp,
gsapKeyframeFidelityMismatches,
runShadowGsapKeyframeFidelity,
type ShadowKeyframeOp,
} from "./sdkShadowGsapKeyframe";
import { runShadowDispatch } from "./sdkShadow";
import type { PatchOperation } from "./sourcePatcher";
// Capture sdk_shadow_dispatch telemetry.
const trackedEvents: Array<{ event: string; props: Record<string, unknown> }> = [];
vi.mock("./studioTelemetry", () => ({
trackStudioEvent: (event: string, props: Record<string, unknown>) =>
trackedEvents.push({ event, props }),
}));
// STUDIO_SDK_SHADOW_ENABLED defaults true (no env override in test), so the
// runners are active here without mocking the availability module.
beforeEach(() => {
trackedEvents.length = 0;
});
const lastShadow = () =>
trackedEvents.filter((e) => e.event === "sdk_shadow_dispatch").at(-1)?.props;
const ANIM_ID = "#hero-to-0-position";
function gsapHtml(scriptBody: string): string {
return /* html */ `<!DOCTYPE html><html><body>
<div data-hf-id="hf-hero" id="hero" class="clip">x</div>
<script>
${scriptBody}
window.__timelines = [tl];
</script>
</body></html>`;
}
const KF_SCRIPT = `
const tl = gsap.timeline({ paused: true });
tl.to("#hero", { keyframes: { "0%": { x: 0 }, "50%": { x: 100 }, "100%": { x: 200 } }, duration: 5 }, 0);`;
// A script body string (not full HTML) for the index-resolution helpers.
const KF_SCRIPT_BODY = KF_SCRIPT;
const DUP_SCRIPT_BODY = `
const tl = gsap.timeline({ paused: true });
tl.to("#hero", { keyframes: { "0%": { x: 0 }, "50%": { x: 100 }, "50%": { x: 150 }, "100%": { x: 200 } }, duration: 5 }, 0);`;
describe("resolveKeyframeIndexByPercentage", () => {
it("resolves a unique percentage to its 0-based index", () => {
expect(resolveKeyframeIndexByPercentage(KF_SCRIPT_BODY, ANIM_ID, 50)).toEqual({
keyframeIndex: 1,
});
expect(resolveKeyframeIndexByPercentage(KF_SCRIPT_BODY, ANIM_ID, 100)).toEqual({
keyframeIndex: 2,
});
});
it("matches within ~0.001 tolerance", () => {
expect(resolveKeyframeIndexByPercentage(KF_SCRIPT_BODY, ANIM_ID, 50.0005).keyframeIndex).toBe(
1,
);
});
it("returns null with not_found when no percentage matches", () => {
expect(resolveKeyframeIndexByPercentage(KF_SCRIPT_BODY, ANIM_ID, 33)).toEqual({
keyframeIndex: null,
reason: "not_found",
});
});
it("returns null with no_keyframes for an unknown animation", () => {
expect(resolveKeyframeIndexByPercentage(KF_SCRIPT_BODY, "#nope-to-0", 50)).toEqual({
keyframeIndex: null,
reason: "no_keyframes",
});
});
it("returns null with no_keyframes when script is empty", () => {
expect(resolveKeyframeIndexByPercentage(null, ANIM_ID, 50).reason).toBe("no_keyframes");
});
it("no-ops on ambiguity (duplicate-percentage keyframes — PR #1498 landmine)", () => {
expect(resolveKeyframeIndexByPercentage(DUP_SCRIPT_BODY, ANIM_ID, 50)).toEqual({
keyframeIndex: null,
reason: "ambiguous",
});
});
// Regression: a from/fromTo tween's id may normalize to "-to-" on write, so a
// "-from-"/"-fromTo-" animationId must fall back to the converted id (matching
// the writer's locateAnimationWithFallback) — else the keyframe diff goes blind.
it("falls back from a -from- id to the -to- tween", () => {
const fromId = ANIM_ID.replace("-to-", "-from-");
expect(resolveKeyframeIndexByPercentage(KF_SCRIPT_BODY, fromId, 50)).toEqual({
keyframeIndex: 1,
});
});
});
describe("keyframeOpToEditOp", () => {
it("maps add → addGsapKeyframe with position = percentage", () => {
const op: ShadowKeyframeOp = {
kind: "add",
animationId: ANIM_ID,
percentage: 25,
properties: { x: 50 },
};
expect(keyframeOpToEditOp(op, KF_SCRIPT_BODY)).toEqual({
op: { type: "addGsapKeyframe", animationId: ANIM_ID, position: 25, value: { x: 50 } },
});
});
it("maps remove → removeGsapKeyframe with resolved index", () => {
const op: ShadowKeyframeOp = { kind: "remove", animationId: ANIM_ID, percentage: 50 };
expect(keyframeOpToEditOp(op, KF_SCRIPT_BODY)).toEqual({
op: { type: "removeGsapKeyframe", animationId: ANIM_ID, keyframeIndex: 1 },
});
});
it("returns null op + reason when remove percentage is ambiguous", () => {
const op: ShadowKeyframeOp = { kind: "remove", animationId: ANIM_ID, percentage: 50 };
expect(keyframeOpToEditOp(op, DUP_SCRIPT_BODY)).toEqual({ op: null, reason: "ambiguous" });
});
});
describe("gsapKeyframeFidelityMismatches", () => {
it("reports no mismatches when keyframe arrays match", () => {
expect(gsapKeyframeFidelityMismatches(KF_SCRIPT_BODY, KF_SCRIPT_BODY, ANIM_ID)).toEqual([]);
});
it("reports a keyframes mismatch when arrays diverge", () => {
const other = `
const tl = gsap.timeline({ paused: true });
tl.to("#hero", { keyframes: { "0%": { x: 0 }, "50%": { x: 999 }, "100%": { x: 200 } }, duration: 5 }, 0);`;
const mismatches = gsapKeyframeFidelityMismatches(KF_SCRIPT_BODY, other, ANIM_ID);
expect(mismatches.some((m) => m.property === "keyframes")).toBe(true);
});
});
describe("runShadowGsapKeyframeFidelity (add)", () => {
it("emits gsap_keyframe with a keyframes mismatch when SDK adds but server didn't", async () => {
const beforeHtml = gsapHtml(KF_SCRIPT);
// server script unchanged (server "failed" to add the 25% keyframe) → drift
const session = await openComposition(beforeHtml);
const serverScript = session
.serialize()
.match(/<script\b[^>]*>([\s\S]*?)<\/script[^>]*>/i)?.[1];
expect(serverScript).toBeTruthy();
const op: ShadowKeyframeOp = {
kind: "add",
animationId: ANIM_ID,
percentage: 25,
properties: { x: 50 },
};
await runShadowGsapKeyframeFidelity(beforeHtml, op, serverScript);
const props = lastShadow();
expect(props?.op).toBe("gsap_keyframe");
expect(props?.dispatched).toBe(true);
expect(props?.mismatchCount).toBe(1);
});
it("emits dispatched:true mismatchCount:0 when SDK and server agree", async () => {
const beforeHtml = gsapHtml(KF_SCRIPT);
// Build the server's resulting script by applying the same op via the SDK.
const serverSession = await openComposition(beforeHtml);
serverSession.batch(() =>
serverSession.dispatch({
type: "addGsapKeyframe",
animationId: ANIM_ID,
position: 25,
value: { x: 50 },
}),
);
const serverScript = serverSession
.serialize()
.match(/<script\b[^>]*>([\s\S]*?)<\/script[^>]*>/i)?.[1];
const op: ShadowKeyframeOp = {
kind: "add",
animationId: ANIM_ID,
percentage: 25,
properties: { x: 50 },
};
await runShadowGsapKeyframeFidelity(beforeHtml, op, serverScript);
const props = lastShadow();
expect(props?.op).toBe("gsap_keyframe");
expect(props?.dispatched).toBe(true);
expect(props?.mismatchCount).toBe(0);
});
});
describe("runShadowGsapKeyframeFidelity (remove)", () => {
it("no-ops with reason when remove percentage is ambiguous", async () => {
const beforeHtml = gsapHtml(DUP_SCRIPT_BODY);
const op: ShadowKeyframeOp = { kind: "remove", animationId: ANIM_ID, percentage: 50 };
await runShadowGsapKeyframeFidelity(beforeHtml, op, "non-empty-server-script gsap");
const props = lastShadow();
expect(props?.op).toBe("gsap_keyframe");
expect(props?.dispatched).toBe(false);
expect(props?.reason).toBe("ambiguous");
});
it("dispatches a resolved remove and diffs", async () => {
const beforeHtml = gsapHtml(KF_SCRIPT);
const serverSession = await openComposition(beforeHtml);
serverSession.batch(() =>
serverSession.dispatch({
type: "removeGsapKeyframe",
animationId: ANIM_ID,
keyframeIndex: 1,
}),
);
const serverScript = serverSession
.serialize()
.match(/<script\b[^>]*>([\s\S]*?)<\/script[^>]*>/i)?.[1];
const op: ShadowKeyframeOp = { kind: "remove", animationId: ANIM_ID, percentage: 50 };
await runShadowGsapKeyframeFidelity(beforeHtml, op, serverScript);
const props = lastShadow();
expect(props?.op).toBe("gsap_keyframe");
expect(props?.dispatched).toBe(true);
expect(props?.mismatchCount).toBe(0);
});
});
describe("runShadowGsapKeyframeFidelity (guards)", () => {
it("skips when there is no server script", async () => {
const op: ShadowKeyframeOp = {
kind: "add",
animationId: ANIM_ID,
percentage: 25,
properties: { x: 50 },
};
await runShadowGsapKeyframeFidelity(gsapHtml(KF_SCRIPT), op, null);
expect(lastShadow()).toBeUndefined();
});
});
describe("runShadowDispatch unmapped-type guard", () => {
const ELEMENT_HTML = /* html */ `<!DOCTYPE html><html><body>
<div data-hf-id="hf-box" style="color: red;">Hi</div>
</body></html>`;
it("emits unmapped_type when a PatchOperation type isn't mapped", async () => {
const session = await openComposition(ELEMENT_HTML);
// PatchOperation.type is a closed union today; cast to exercise the defensive
// guard for a future unmapped type.
const ops = [{ type: "future-op", property: "x", value: "1" } as unknown as PatchOperation];
runShadowDispatch(session, { hfId: "hf-box" } as never, ops);
const props = lastShadow();
expect(props?.op).toBe("property");
expect(props?.dispatched).toBe(false);
expect(props?.reason).toBe("unmapped_type");
expect(props?.type).toBe("future-op");
});
it("dispatches normally for known PatchOperation types", async () => {
const session = await openComposition(ELEMENT_HTML);
const ops: PatchOperation[] = [{ type: "inline-style", property: "color", value: "#00f" }];
runShadowDispatch(session, { hfId: "hf-box" } as never, ops);
const props = lastShadow();
expect(props?.dispatched).toBe(true);
expect(props?.reason).toBeUndefined();
});
});
@@ -0,0 +1,270 @@
/**
* GSAP keyframe-op shadow (serialize round-trip diff). New module for the Stage 7
* shadow-parity push — kept out of sdkShadow.ts / sdkShadowGsapFidelity.ts so the
* shared files stay untouched (only additive imports) and the studio 600-line cap
* holds.
*
* Unlike tweens, the SDK exposes NO keyframe reader on ElementSnapshot, so there
* is no existence-parity path here. Instead we compare the two writers' output:
* open a fresh SDK doc from the server's pre-op file, dispatch the equivalent
* keyframe op, serialize, and diff the SDK's GSAP script against the server's
* resulting script.
*
* gsapFidelityMismatches (reused) matches tweens by resolved target element +
* method + position and diffs tween-level fields — but it does NOT look inside a
* tween's `keyframes` array. Keyframe drift therefore needs a dedicated diff,
* layered on top of the reused tween-level diff, matched by the GSAP animation id.
*
* SDK mapping (main, pre PR #1498 percentage-variant):
* add → addGsapKeyframe{animationId, position: percentage, value: properties}
* remove → removeGsapKeyframe{animationId, keyframeIndex} — the studio op is
* percentage-based, so we resolve percentage → index against the pre-op
* script (KF_PERCENT_TOLERANCE, aligned with the writer ~0.001) and
* no-op on ambiguity (duplicate-percentage keyframes can't be told
* apart by percentage — landmine from PR #1498).
*/
import { openComposition } from "@hyperframes/sdk";
import type { EditOp } from "@hyperframes/sdk";
import { parseGsapScriptAcorn } from "@hyperframes/core/gsap-parser-acorn";
import type { GsapPercentageKeyframe } from "@hyperframes/core/gsap-parser";
import { STUDIO_SDK_SHADOW_ENABLED } from "../components/editor/manualEditingAvailability";
import { trackStudioEvent } from "./studioTelemetry";
import type { SdkShadowMismatch } from "./sdkShadow";
import { gsapFidelityMismatches, makeSelectorResolver } from "./sdkShadowGsapFidelity";
// Match the GSAP writer's percentage equality tolerance so a remove resolves to
// the same keyframe the server would pick (writer rounds to ~3 decimals).
const KF_PERCENT_TOLERANCE = 0.001;
export type ShadowKeyframeOp =
| {
kind: "add";
animationId: string;
percentage: number;
properties: Record<string, number | string>;
}
| { kind: "remove"; animationId: string; percentage: number };
// ─── Script helpers (mirror sdkShadowGsapFidelity's extraction) ───────────────
function isGsapScriptBody(body: string): boolean {
return body.includes("gsap") || body.includes("__timelines") || body.includes("ScrollTrigger");
}
function extractGsapScript(html: string): string | null {
// Close tag is `</script[^>]*>` (HTML5 ignores junk before `>`).
const scripts = html.match(/<script\b[^>]*>([\s\S]*?)<\/script[^>]*>/gi);
if (!scripts) return null;
for (const block of scripts) {
const body = block.replace(/^<script\b[^>]*>/i, "").replace(/<\/script[^>]*>$/i, "");
if (isGsapScriptBody(body)) return body;
}
return null;
}
// ─── percentage → SDK op mapping ──────────────────────────────────────────────
function findAnimationKeyframes(
script: string,
animationId: string,
): GsapPercentageKeyframe[] | null {
const parsed = parseGsapScriptAcorn(script);
// Match the writer's locateAnimationWithFallback (gsapParser.ts): a from/fromTo
// tween's derived id may be normalized to "-to-" on write, so fall back to the
// converted id when the exact one isn't found — otherwise the keyframe diff
// goes blind (both scripts resolve null → falsely "clean") on converted tweens.
const convertedId = animationId.replace(/-from-|-fromTo-/, "-to-");
const anim =
parsed.animations.find((a) => a.id === animationId) ??
parsed.animations.find((a) => a.id === convertedId);
return anim?.keyframes?.keyframes ?? null;
}
export interface KeyframeRemoveResolution {
/** Resolved 0-based index, or null when it can't be safely resolved. */
keyframeIndex: number | null;
/** Why no index — for telemetry when keyframeIndex is null. */
reason?: "no_keyframes" | "not_found" | "ambiguous";
}
/**
* Resolve a percentage-based remove to a keyframe index against the pre-op
* script. Returns null index (with a reason) when there are no keyframes, the
* percentage matches none, or — per the PR #1498 landmine — more than one
* keyframe shares the percentage (can't be disambiguated by percentage alone).
* Pure + exported so the mapping is unit-testable without an SDK session.
*/
export function resolveKeyframeIndexByPercentage(
script: string | null | undefined,
animationId: string,
percentage: number,
): KeyframeRemoveResolution {
if (!script) return { keyframeIndex: null, reason: "no_keyframes" };
const kfs = findAnimationKeyframes(script, animationId);
if (!kfs || kfs.length === 0) return { keyframeIndex: null, reason: "no_keyframes" };
const matches: number[] = [];
for (let i = 0; i < kfs.length; i++) {
if (Math.abs(kfs[i]?.percentage - percentage) <= KF_PERCENT_TOLERANCE) matches.push(i);
}
if (matches.length === 0) return { keyframeIndex: null, reason: "not_found" };
if (matches.length > 1) return { keyframeIndex: null, reason: "ambiguous" };
return { keyframeIndex: matches[0] };
}
/**
* Map a studio keyframe op to the SDK EditOp. For a remove this needs the pre-op
* script to resolve percentage → index; returns null (with a reason) when the
* index can't be safely resolved so the caller can emit a no-op-with-reason
* event instead of dispatching the wrong keyframe.
*/
export function keyframeOpToEditOp(
op: ShadowKeyframeOp,
beforeScript: string | null | undefined,
): { op: EditOp } | { op: null; reason: string } {
if (op.kind === "add") {
return {
op: {
type: "addGsapKeyframe",
animationId: op.animationId,
position: op.percentage,
value: op.properties,
},
};
}
const resolved = resolveKeyframeIndexByPercentage(beforeScript, op.animationId, op.percentage);
if (resolved.keyframeIndex === null) {
return { op: null, reason: resolved.reason ?? "unresolved" };
}
return {
op: {
type: "removeGsapKeyframe",
animationId: op.animationId,
keyframeIndex: resolved.keyframeIndex,
},
};
}
// ─── Keyframe-aware fidelity diff ─────────────────────────────────────────────
function canonicalKeyframe(kf: GsapPercentageKeyframe): string {
const props: Record<string, unknown> = {};
for (const key of Object.keys(kf.properties).sort()) {
const v = kf.properties[key];
props[key] =
typeof v === "string" && v.trim() !== "" && !Number.isNaN(Number(v)) ? Number(v) : v;
}
return JSON.stringify({ pct: Math.round(kf.percentage * 1000) / 1000, ease: kf.ease, props });
}
function canonicalKeyframes(kfs: GsapPercentageKeyframe[] | null): string {
if (!kfs) return "[]";
return JSON.stringify(
[...kfs].sort((a, b) => a.percentage - b.percentage).map(canonicalKeyframe),
);
}
/**
* Diff two GSAP scripts for a keyframe op: the reused tween-level diff PLUS a
* keyframe-array comparison for the targeted animation (which the tween-level
* diff doesn't inspect). Reports a `keyframes` value_mismatch when the SDK and
* server keyframe arrays diverge canonically.
*/
export function gsapKeyframeFidelityMismatches(
sdkScript: string,
serverScript: string,
animationId: string,
resolveSelector?: (sel: string) => string,
): SdkShadowMismatch[] {
const mismatches = gsapFidelityMismatches(sdkScript, serverScript, resolveSelector);
const sdkKfs = findAnimationKeyframes(sdkScript, animationId);
const serverKfs = findAnimationKeyframes(serverScript, animationId);
const sdkCanon = canonicalKeyframes(sdkKfs);
const serverCanon = canonicalKeyframes(serverKfs);
if (sdkCanon !== serverCanon) {
mismatches.push({
kind: "value_mismatch",
hfId: animationId,
property: "keyframes",
expected: serverCanon,
actual: sdkCanon,
});
}
return mismatches;
}
// ─── Telemetry runner ─────────────────────────────────────────────────────────
/**
* Shadow a GSAP keyframe op: open a fresh SDK doc from the server's pre-op file,
* apply the equivalent keyframe op, serialize, and diff against the server's
* resulting script. Emits sdk_shadow_dispatch op: "gsap_keyframe". Async,
* fire-and-forget; server stays authoritative. No-op when shadow is disabled.
*/
export async function runShadowGsapKeyframeFidelity(
beforeHtml: string | null | undefined,
op: ShadowKeyframeOp,
serverScript: string | null | undefined,
): Promise<void> {
if (!STUDIO_SDK_SHADOW_ENABLED) return;
// No server script to diff against → skip the (costly) openComposition.
if (!serverScript || !beforeHtml) return;
const beforeScript = extractGsapScript(beforeHtml);
const mapped = keyframeOpToEditOp(op, beforeScript);
if (mapped.op === null) {
// Ambiguous / not-found percentage: don't dispatch the wrong keyframe.
trackStudioEvent("sdk_shadow_dispatch", {
op: "gsap_keyframe",
dispatched: false,
reason: mapped.reason,
mismatchCount: 0,
});
return;
}
const editOp = mapped.op;
try {
const session = await openComposition(beforeHtml);
const verdict = session.can(editOp);
if (!verdict.ok) {
trackStudioEvent("sdk_shadow_dispatch", {
op: "gsap_keyframe",
dispatched: false,
reason: "cannot_dispatch",
code: verdict.code,
mismatchCount: 0,
});
return;
}
session.batch(() => session.dispatch(editOp));
const sdkScript = extractGsapScript(session.serialize());
if (sdkScript == null) {
trackStudioEvent("sdk_shadow_dispatch", {
op: "gsap_keyframe",
dispatched: false,
reason: "no_sdk_script",
mismatchCount: 0,
});
return;
}
const mismatches = gsapKeyframeFidelityMismatches(
sdkScript,
serverScript,
op.animationId,
makeSelectorResolver(beforeHtml),
);
trackStudioEvent("sdk_shadow_dispatch", {
op: "gsap_keyframe",
dispatched: true,
mismatchCount: mismatches.length,
mismatches: JSON.stringify(mismatches),
});
} catch (err) {
trackStudioEvent("sdk_shadow_dispatch", {
op: "gsap_keyframe",
dispatched: false,
reason: "fidelity_error",
error: String(err),
mismatchCount: 0,
});
}
}