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import {getBrowser} from "./main.tsx";
import BookmarkTreeNode = browser.bookmarks.BookmarkTreeNode;
interface IconCacheEntry {
url?: string,
data: string,
setByUser: boolean,
source: "google" | "site" | "custom"
}
async function getIcon(bmData: BookmarkTreeNode, setIcon: (icon: string) => void) {
let cache: IconCacheEntry = (await getBrowser().storage.local.get("icon-cache-" + bmData.id))["icon-cache-" + bmData.id];
if (cache) {
// if there is an icon in the cache, set that
setIcon(cache.data);
if (cache.setByUser) {
// if the user was the one who set the icon, then quit
return;
}
if (cache.source === "google") {
await iconFromSite(bmData, setIcon);
}
} else {
iconFromSite(bmData, setIcon).catch(() => {
iconFromGoogle(bmData, setIcon);
})
}
}
async function iconFromGoogle(bmData: BookmarkTreeNode, setIcon: (icon: string) => void) {
const url = new URL('https://www.google.com/s2/favicons');
url.searchParams.set("sz", "256");
url.searchParams.set("domain_url", bmData.url!);
let resp = await fetch(url)
if (!resp.ok) {
return Promise.reject();
}
let r = url.toString()
setIcon(r);
let newCache: IconCacheEntry = {
url: r,
data: await toDataURL(r),
setByUser: false,
source: "google"
}
await getBrowser().storage.local.set({["icon-cache-" + bmData.id]: newCache})
}
async function iconFromSite(bmData: BookmarkTreeNode, setIcon: (icon: string) => void) {
let icons_aval: string[] = (await getBrowser().storage.local.get("icon-aval-" + bmData.id))["icon-aval-" + bmData.id];
if (!(icons_aval && icons_aval.length > 0)) {
return Promise.reject()
}
let r = icons_aval[0];
// set the icon and update the cache
setIcon(r);
let newCache: IconCacheEntry = {
url: r,
data: await toDataURL(r),
setByUser: false,
source: "site"
}
await getBrowser().storage.local.set({["icon-cache-" +bmData.id]: newCache})
}
async function toDataURL(url: string) {
let response = await fetch(url);
let blob: Blob = await response.blob();
return await new Promise<string>((resolve, reject) => {
const reader = new FileReader()
// @ts-ignore
reader.onloadend = () => resolve(reader.result)
reader.onerror = reject
reader.readAsDataURL(blob)
});
}
export {type IconCacheEntry, getIcon}
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