40 lines
1.2 KiB
TypeScript
40 lines
1.2 KiB
TypeScript
import { type Project, validateProject } from "../engine/schema.ts";
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function db(): Promise<IDBDatabase> {
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return new Promise((resolve, reject) => {
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const req = indexedDB.open("forma-projects", 1);
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req.onupgradeneeded = () => req.result.createObjectStore("projects");
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req.onsuccess = () => resolve(req.result);
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req.onerror = () => reject(req.error);
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});
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}
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export async function loadDraft() {
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const d = await db();
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return new Promise<Project | null>((resolve, reject) => {
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const r = d.transaction("projects").objectStore("projects").get("active");
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r.onsuccess = () => {
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d.close();
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if (r.result) {
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try {
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validateProject(r.result);
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resolve(r.result);
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} catch {
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resolve(null);
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}
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} else resolve(null);
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};
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r.onerror = () => reject(r.error);
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});
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}
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export async function saveDraft(p: Project) {
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const d = await db();
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return new Promise<void>((resolve, reject) => {
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const tx = d.transaction("projects", "readwrite");
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tx.objectStore("projects").put(p, "active");
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tx.oncomplete = () => {
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d.close();
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resolve();
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};
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tx.onerror = () => reject(tx.error);
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});
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}
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