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batch same-day sale and ending-soon alerts into one digest per channel

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This commit is contained in:
Justin Oro
2026-09-11 11:54:53 -07:00
parent 8f73c38951
commit e7162484bb
2 changed files with 61 additions and 22 deletions
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index.js
+60 -21
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@@ -1676,6 +1676,14 @@ async function checkPrices(client) {
let changed = false;
let alerted = 0;
const newSalesByChannel = new Map();
const endingSoonByChannel = new Map();
function pushLine(map, channelId, line) {
if (!map.has(channelId)) map.set(channelId, []);
map.get(channelId).push(line);
}
for (const game of games) {
const entry = priceById[game.id];
const deal = entry && pickBestDeal(entry.deals);
@@ -1686,17 +1694,10 @@ async function checkPrices(client) {
deal.price.amountInt < game.lastAlertedPrice;
const expiryText = formatExpiry(deal.expiry);
if (isNewAlert) {
try {
const channel = await client.channels.fetch(game.channelId);
await channel.send({
content: game.title + " is on sale at " + deal.shop.name + ": " + formatMoney(deal.price.amountInt, deal.price.currency) +
" (" + deal.cut + "% off, was " + formatMoney(deal.regular.amountInt, deal.regular.currency) +
(expiryText ? ", " + expiryText : "") + ")\n" + deal.url,
flags: MessageFlags.SuppressEmbeds
});
} catch (err) {
console.error("Could not send alert for " + game.title + ":", err.message);
}
pushLine(newSalesByChannel, game.channelId,
"**" + game.title + "** is on sale at " + deal.shop.name + ": " + formatMoney(deal.price.amountInt, deal.price.currency) +
" (" + deal.cut + "% off, was " + formatMoney(deal.regular.amountInt, deal.regular.currency) +
(expiryText ? ", " + expiryText : "") + ")\n" + deal.url);
game.lastAlertedPrice = deal.price.amountInt;
game.lastEndingSoonExpiry = deal.expiry || null;
changed = true;
@@ -1704,16 +1705,9 @@ async function checkPrices(client) {
} else if (deal.expiry && expiryText &&
new Date(deal.expiry).getTime() - Date.now() <= SALE_ENDING_SOON_HOURS * 60 * 60 * 1000 &&
game.lastEndingSoonExpiry !== deal.expiry) {
try {
const channel = await client.channels.fetch(game.channelId);
await channel.send({
content: game.title + "'s sale at " + deal.shop.name + " is " + expiryText + " - " +
formatMoney(deal.price.amountInt, deal.price.currency) + " (" + deal.cut + "% off)\n" + deal.url,
flags: MessageFlags.SuppressEmbeds
});
} catch (err) {
console.error("Could not send ending-soon alert for " + game.title + ":", err.message);
}
pushLine(endingSoonByChannel, game.channelId,
"**" + game.title + "**'s sale at " + deal.shop.name + " is " + expiryText + " - " +
formatMoney(deal.price.amountInt, deal.price.currency) + " (" + deal.cut + "% off)\n" + deal.url);
game.lastEndingSoonExpiry = deal.expiry;
changed = true;
}
@@ -1729,9 +1723,54 @@ async function checkPrices(client) {
saveGames(games);
}
const channelIds = new Set([...newSalesByChannel.keys(), ...endingSoonByChannel.keys()]);
for (const channelId of channelIds) {
const sections = [];
const newSales = newSalesByChannel.get(channelId);
if (newSales && newSales.length > 0) {
sections.push("**On sale:**\n" + newSales.join("\n\n"));
}
const endingSoon = endingSoonByChannel.get(channelId);
if (endingSoon && endingSoon.length > 0) {
sections.push("**Ending soon:**\n" + endingSoon.join("\n\n"));
}
await sendDigest(channelId, sections);
}
return { checked: games.length, alerted: alerted };
}
async function sendDigest(channelId, sections) {
let channel;
try {
channel = await client.channels.fetch(channelId);
} catch (err) {
console.error("Could not fetch channel " + channelId + " for digest:", err.message);
return;
}
const chunks = [];
let chunk = "";
for (const section of sections) {
const candidate = chunk ? chunk + "\n\n" + section : section;
if (candidate.length > 1900 && chunk) {
chunks.push(chunk);
chunk = section;
} else {
chunk = candidate;
}
}
if (chunk) chunks.push(chunk);
for (const c of chunks) {
try {
await channel.send({ content: c, flags: MessageFlags.SuppressEmbeds });
} catch (err) {
console.error("Could not send digest to channel " + channelId + ":", err.message);
}
}
}
const notifiedEvents = new Set();
const dmGreetedUsers = new Set();