122 lines
3.2 KiB
TypeScript
122 lines
3.2 KiB
TypeScript
/*
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* Copyright (C) 2026 Fluxer Contributors
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*
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* This file is part of Fluxer.
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*
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* Fluxer is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Fluxer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
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*/
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const DB_NAME = 'FluxerBackgroundImages';
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const DB_VERSION = 1;
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const STORE_NAME = 'backgroundImages';
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interface BackgroundImageData {
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id: string;
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blob: Blob;
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createdAt: number;
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}
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let dbInstance: IDBDatabase | null = null;
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const openDB = (): Promise<IDBDatabase> => {
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return new Promise((resolve, reject) => {
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if (dbInstance) {
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resolve(dbInstance);
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return;
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}
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const request = indexedDB.open(DB_NAME, DB_VERSION);
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request.onerror = () => {
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reject(new Error('Failed to open IndexedDB'));
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};
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request.onsuccess = () => {
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dbInstance = request.result;
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resolve(dbInstance);
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};
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request.onupgradeneeded = (event) => {
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const db = (event.target as IDBOpenDBRequest).result;
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if (!db.objectStoreNames.contains(STORE_NAME)) {
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db.createObjectStore(STORE_NAME, {keyPath: 'id'});
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}
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};
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});
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};
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export const saveBackgroundImage = async (id: string, blob: Blob): Promise<void> => {
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const db = await openDB();
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return new Promise((resolve, reject) => {
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const transaction = db.transaction([STORE_NAME], 'readwrite');
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const store = transaction.objectStore(STORE_NAME);
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const backgroundImage: BackgroundImageData = {
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id,
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blob,
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createdAt: Date.now(),
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};
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const request = store.put(backgroundImage);
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request.onsuccess = () => {
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resolve();
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};
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request.onerror = () => {
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reject(new Error('Failed to save background image'));
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};
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});
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};
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const getBackgroundImage = async (id: string): Promise<BackgroundImageData | null> => {
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const db = await openDB();
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return new Promise((resolve, reject) => {
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const transaction = db.transaction([STORE_NAME], 'readonly');
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const store = transaction.objectStore(STORE_NAME);
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const request = store.get(id);
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request.onsuccess = () => {
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resolve(request.result || null);
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};
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request.onerror = () => {
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reject(new Error('Failed to get background image'));
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};
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});
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};
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export const deleteBackgroundImage = async (id: string): Promise<void> => {
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const db = await openDB();
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return new Promise((resolve, reject) => {
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const transaction = db.transaction([STORE_NAME], 'readwrite');
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const store = transaction.objectStore(STORE_NAME);
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const request = store.delete(id);
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request.onsuccess = () => {
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resolve();
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};
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request.onerror = () => {
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reject(new Error('Failed to delete background image'));
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};
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});
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};
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export const getBackgroundImageURL = async (id: string): Promise<string | null> => {
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const imageData = await getBackgroundImage(id);
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if (!imageData) return null;
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return URL.createObjectURL(imageData.blob);
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};
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