// functions/unreleased/[sheetId]/[projectName].js
const ARTISTS_NDJSON_URL = 'https://assets.artistgrid.cx/artists.ndjson';
const _ASSETS_BASE_URL = 'https://assets.artistgrid.cx';
const TRACKER_API_ENDPOINTS = [
'https://trackerapi-1.artistgrid.cx/get/',
'https://trackerapi-2.artistgrid.cx/get/',
'https://trackerapi-3.artistgrid.cx/get/',
];
function getSheetId(url) {
if (!url) return null;
const match = url.match(/spreadsheets\/d\/([a-zA-Z0-9-_]+)/);
return match ? match[1] : null;
}
function _normalizeArtistName(name) {
return name.toLowerCase().replace(/[^a-z0-9]/g, '');
}
function transformImageUrl(url) {
if (!url) return url;
return url.replace('https://s3.sad.ovh/trackerapi/', 'https://r2.artistgrid.cx/');
}
async function loadArtistsData() {
try {
const response = await fetch(ARTISTS_NDJSON_URL);
if (!response.ok) throw new Error('Network response was not ok');
const text = await response.text();
return text
.trim()
.split('\n')
.filter((line) => line.trim())
.map((line) => {
try {
return JSON.parse(line);
} catch {
return null;
}
})
.filter((item) => item !== null);
} catch (e) {
console.error('Failed to load Artists List:', e);
return [];
}
}
async function fetchTrackerData(sheetId) {
for (const baseUrl of TRACKER_API_ENDPOINTS) {
try {
const response = await fetch(`${baseUrl}${sheetId}`);
if (!response.ok) continue;
const data = await response.json();
if (data.eras) {
for (const eraName in data.eras) {
const era = data.eras[eraName];
if (era.image) {
era.image = transformImageUrl(era.image);
}
}
}
return data;
} catch (e) {
console.warn(`Failed to fetch from ${baseUrl}, trying next...`, e);
}
}
return null;
}
export async function onRequest(context) {
const { request, params, env } = context;
const userAgent = request.headers.get('User-Agent') || '';
const isBot =
/discordbot|twitterbot|facebookexternalhit|bingbot|googlebot|slurp|whatsapp|pinterest|slackbot|telegrambot|linkedinbot|linkedinbot|mastodon|signal|snapchat|redditbot|skypeuripreview|viberbot|linebot|embedly|quora|outbrain|tumblr|duckduckbot|yandexbot|rogerbot|showyoubot|kakaotalk|naverbot|seznambot|mediapartners|adsbot|petalbot|applebot|ia_archiver/i.test(
userAgent
);
const sheetId = params.sheetId;
const projectName = params.projectName ? decodeURIComponent(params.projectName) : null;
if (isBot && sheetId && projectName) {
try {
const artists = await loadArtistsData();
const artist = artists.find((a) => getSheetId(a.url) === sheetId);
const trackerData = await fetchTrackerData(sheetId);
if (artist && artist.name && trackerData && trackerData.eras) {
const era = trackerData.eras[projectName];
const imageUrl = era && era.image ? era.image : 'https://monochrome.tf/assets/appicon.png';
const pageUrl = new URL(request.url).href;
const title = `${projectName} - ${artist.name}`;
const description = `Stream ${projectName} by ${artist.name} on Monochrome`;
const metaHtml = `
${title}
${title}
${description}
`;
return new Response(metaHtml, {
headers: { 'content-type': 'text/html;charset=UTF-8' },
});
}
} catch (error) {
console.error(`Error generating meta tags for unreleased project ${sheetId}/${projectName}:`, error);
}
}
const url = new URL(request.url);
url.pathname = '/';
return env.ASSETS.fetch(new Request(url, request));
}