| import { readdir, readFile } from "node:fs/promises"; |
| import { join } from "node:path"; |
| import { scanContentAnchors } from "../shared/scan-structure.mjs"; |
| import { validateContentAnchors } from "../shared/scan-furnishing.mjs"; |
| async function resolveScanBlueprint(scene, sceneFolder) { |
| if (scene.scanReconstruction?.blueprint) return structuredClone(scene.scanReconstruction.blueprint); |
| let files; |
| try { |
| files = await readdir(join(sceneFolder, "scan-previews")); |
| } catch (error) { |
| if (error.code !== "ENOENT") throw error; |
| files = []; |
| } |
| for (const file of files.filter((f) => /^[a-f\d-]+\.json$/i.test(f)).sort()) { |
| const saved = JSON.parse(await readFile(join(sceneFolder, "scan-previews", file), "utf8")); |
| if (matchesScanGeometry(scene, saved.scene) && saved.survey?.planes && saved.alignment) return { planes: saved.survey.planes, alignment: saved.alignment, referenceFloor: saved.scene.objects.find((o) => o.id === "ground") }; |
| } |
| throw new Error("Original scan for this scene was not found. Preview and apply the scan structure first."); |
| } |
| function matchesScanGeometry(scene, saved) { |
| if (!saved?.objects?.length) return false; |
| const current = new Map(scene.objects.map((o) => [o.id, o])); |
| return saved.objects.every((a) => { |
| const b = current.get(a.id); |
| return b && JSON.stringify([a.shape, a.position, a.size, a.rotation]) === JSON.stringify([b.shape, b.position, b.size, b.rotation]); |
| }); |
| } |
| async function resolveScanContent(scene, sceneFolder) { |
| if (!scene.scanStructure) throw new Error("Apply the scan structure before adding scanned objects"); |
| if (scene.scanStructure.contentAnchors) return validateContentAnchors(scene.scanStructure.contentAnchors); |
| let files; |
| try { |
| files = await readdir(join(sceneFolder, "scan-previews")); |
| } catch (error) { |
| if (error.code !== "ENOENT") throw error; |
| files = []; |
| } |
| for (const file of files.filter((f) => /^[a-f\d-]+\.json$/i.test(f)).sort()) { |
| const saved = JSON.parse(await readFile(join(sceneFolder, "scan-previews", file), "utf8")); |
| if (matchesScanGeometry(scene, saved.scene) && saved.survey?.planes && saved.alignment) return validateContentAnchors(scanContentAnchors(saved.survey.planes, saved.alignment, scene)); |
| } |
| throw new Error("Matching original scan was not found. Current scene is preserved. Preview the scan structure again."); |
| } |
| export { |
| matchesScanGeometry, |
| resolveScanBlueprint, |
| resolveScanContent |
| }; |
|
|
