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beatsaber-overlay/pages/api/beatleader/stars.js

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import fetch from "node-fetch";
import WebsiteTypes from "../../../src/consts/LeaderboardType";
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import RedisUtils from "../../../src/utils/redisUtils";
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const KEY = "BL_MAP_STAR_";
/**
*
* @param {Request} req
* @param {Response} res
* @returns
*/
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export default async function handler(req, res) {
const mapHash = req.query.hash.replace("custom_level_", "").toLowerCase();
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const difficulty = req.query.difficulty.replace(" ", "");
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const characteristic = req.query.characteristic;
const key = `${KEY}${difficulty}-${characteristic}-${mapHash}`;
const exists = await RedisUtils.exists(key);
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if (exists) {
const data = await RedisUtils.getValue(key);
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res.setHeader("Cache-Status", "hit");
return res.status(200).json({
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status: "OK",
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stars: Number.parseFloat(data),
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difficulty: difficulty,
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});
}
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const before = Date.now();
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const data = await fetch(
WebsiteTypes.BeatLeader.ApiUrl.MapData.replace("%h", mapHash),
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{
headers: {
"X-Requested-With": "BeatSaber Overlay",
},
}
);
if (data.status === 404) {
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return res.status(404).json({
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status: 404,
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message: "Unknown Map Hash",
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});
}
const json = await data.json();
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let starCount = undefined;
for (const diff of json.difficulties) {
if (
diff.difficultyName === difficulty &&
diff.modeName === characteristic
) {
starCount = diff.stars;
}
}
if (starCount === undefined) {
return res.status(404).json({
status: 404,
message: "Unknown Map Hash",
});
}
await RedisUtils.setValue(key, starCount);
console.log(
`[Cache]: Cached BL Star Count for hash ${mapHash} in ${
Date.now() - before
}ms`
);
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res.setHeader("Cache-Status", "miss");
return res.status(200).json({
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status: "OK",
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stars: starCount,
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});
}