File size: 3,279 Bytes
47fc8df | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | import type { Project, Scene } from "../api/client";
type ArEntry = string | { landscape?: string; portrait?: string } | undefined;
/**
* Resolve the image-box CSS aspect-ratio string for a custom-template scene.
*
* Lookup priority:
* 1. Template-level ratioMap (project.custom_image_box_aspect_ratios) — keyed
* by sceneType + contentVariantIndex (or position-based fallback if those
* aren't yet on the descriptor — e.g. the project hasn't been rendered
* since the template was generated).
* 2. Per-scene injected layoutProps.imageBoxAspectRatio — set during render
* by remotion.py for the project's actual orientation.
* 3. Hard fallback based on project orientation ("16 / 9" or "9 / 16").
*/
export function resolveCustomImageBoxAr(
scene: Scene,
project: Project,
): string {
const orientation = project.aspect_ratio === "portrait" ? "portrait" : "landscape";
const orientationFallback = orientation === "portrait" ? "9 / 16" : "16 / 9";
const pickAr = (entry: ArEntry): string | null => {
if (!entry) return null;
if (typeof entry === "string") return entry.trim() || null;
return entry[orientation] || entry.landscape || entry.portrait || null;
};
let sceneType: string | null = null;
let variantIdx: number | null = null;
let perSceneAr: string | null = null;
try {
const desc = JSON.parse(scene.remotion_code || "{}") as {
sceneTypeOverride?: string;
contentVariantIndex?: number;
layoutProps?: { imageBoxAspectRatio?: string };
};
sceneType = desc.sceneTypeOverride ?? null;
variantIdx = typeof desc.contentVariantIndex === "number" ? desc.contentVariantIndex : null;
perSceneAr = desc.layoutProps?.imageBoxAspectRatio ?? null;
} catch { /* ignore */ }
const ratioMap = project.custom_image_box_aspect_ratios || null;
const contentRatios = (ratioMap && Array.isArray(ratioMap.content)) ? ratioMap.content : [];
// Position-based fallback when descriptor lacks sceneType / variantIdx.
// This matters for fresh projects that haven't been rendered yet.
if (!sceneType || (sceneType === "content" && variantIdx === null)) {
const sortedScenes = [...(project.scenes || [])].sort((a, b) => a.order - b.order);
const idx = sortedScenes.findIndex((s) => s.id === scene.id);
if (idx >= 0 && sortedScenes.length > 0) {
if (!sceneType) {
if (sortedScenes.length === 1) sceneType = "intro";
else if (idx === 0) sceneType = "intro";
else if (idx === sortedScenes.length - 1) sceneType = "outro";
else sceneType = "content";
}
if (sceneType === "content" && variantIdx === null && contentRatios.length > 0) {
// Content scenes occupy positions 1..N-2; cycle through variants.
const contentPos = Math.max(0, idx - 1);
variantIdx = contentPos % contentRatios.length;
}
}
}
let lookedUp: string | null = null;
if (ratioMap) {
if (sceneType === "intro") lookedUp = pickAr(ratioMap.intro);
else if (sceneType === "outro") lookedUp = pickAr(ratioMap.outro);
else if (sceneType === "content" && variantIdx !== null) {
lookedUp = pickAr(contentRatios[variantIdx]);
}
}
return lookedUp || perSceneAr || orientationFallback;
}
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