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refactor(core): unify composition contract (#2157)

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* refactor(core): unify composition contract

* fix(parsers): parse start expressions linearly
This commit is contained in:
James Russo
2026-07-16 02:44:22 -04:00
committed by GitHub
parent 9ed255c0ef
commit 21cb722ebd
36 changed files with 1148 additions and 441 deletions
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packages/parsers/src/htmlParser.test.ts
+29 -2
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@@ -37,6 +37,29 @@ describe("parseHtml", () => {
expect(result.elements[1].duration).toBe(5);
});
it("prefers canonical duration/track attributes over conflicting legacy values", () => {
const result = parseHtml(`
<html><body><div id="stage">
<div id="clip" data-start="1" data-duration="2.5" data-end="99" data-track-index="3" data-layer="8"><div>Clip</div></div>
</div></body></html>
`);
expect(result.elements[0]).toMatchObject({ startTime: 1, duration: 2.5, zIndex: 3 });
});
it("resolves chained start references with the shared grammar", () => {
const result = parseHtml(`
<html><body><div id="stage">
<div id="intro" data-start="0" data-duration="2"><div>Intro</div></div>
<div id="body" data-start="intro + .5" data-duration="3"><div>Body</div></div>
<div id="outro" data-start="body" data-duration="1"><div>Outro</div></div>
</div></body></html>
`);
expect(result.elements.find(({ name }) => name === "Body")?.startTime).toBe(2.5);
expect(result.elements.find(({ name }) => name === "Outro")?.startTime).toBe(5.5);
});
it("handles nested compositions", () => {
const html = `
<html>
@@ -464,7 +487,8 @@ describe("updateElementInHtml", () => {
const updated = updateElementInHtml(html, "el1", { startTime: 2, duration: 3 });
expect(updated).toContain('data-start="2"');
expect(updated).toContain('data-end="5"'); // data-end gets set to start + duration
expect(updated).toContain('data-duration="3"');
expect(updated).not.toContain('data-end="');
});
it("updates element name", () => {
@@ -511,7 +535,10 @@ describe("addElementToHtml", () => {
expect(id).toBeDefined();
expect(updated).toContain(`id="${id}"`);
expect(updated).toContain('data-start="1"');
expect(updated).toContain('data-end="4"');
expect(updated).toContain('data-duration="3"');
expect(updated).toContain('data-track-index="1"');
expect(updated).not.toContain('data-end="');
expect(updated).not.toContain('data-layer="');
expect(updated).toContain("Hello!");
});