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import config from "$config";
import { err, warn } from "$lib/logging";
import { fail, sleep } from "$lib/utils";
import { createClient } from "redis";
export const db = createClient({
url: config.db,
socket: {
reconnectStrategy: (retries) => Math.min(retries * 50, 5000),
},
});
export const archive = createClient({
url: config.archive,
socket: {
reconnectStrategy: (retries) => Math.min(retries * 50, 5000),
},
});
export const arc2 = createClient({
url: config.arc2,
socket: {
reconnectStrategy: (retries) => Math.min(retries * 50, 5000),
},
});
async function dbReconnect() {
try {
await db.connect();
} catch (err) {
console.error("Failed to connect to Redis, retrying...", err);
setTimeout(dbReconnect, 5000); // Retry after 5 seconds
}
}
async function archiveReconnect() {
try {
await archive.connect();
} catch (err) {
console.error("Failed to connect to Redis, retrying...", err);
setTimeout(archiveReconnect, 5000); // Retry after 5 seconds
}
}
dbReconnect();
archiveReconnect();
db.on("error", (e) => {
if (e.message.startsWith("getaddr")) return;
err("Redis error", e.message);
});
db.on("end", () => {
warn("Redis connection ended");
});
export default db;
export const g = async (k) => {
const v = await db.get(k);
try {
return JSON.parse(v as string);
} catch (e) {
return v;
}
};
export const s = (k, v) => {
if (k === "user:null" || k === "user:undefined") fail("null user");
return db.set(k, JSON.stringify(v));
};
export async function* scan(pattern: string) {
for await (const keys of db.scanIterator({ MATCH: pattern })) {
for (const k of keys) yield k;
}
}
export const ga = async (k) => {
const v = await archive.get(k);
try {
return JSON.parse(v as string);
} catch (e) {
return v;
}
};
export const sa = (k, v) => {
if (k === "user:null" || k === "user:undefined") {
warn("###### NULL USER #######");
console.trace();
}
archive.set(k, JSON.stringify(v));
};
// Get with fallback to archive
export const gf = async (k) => {
let v = await db.get(k);
if (v === null) v = await archive.get(k);
try {
return JSON.parse(v as string);
} catch (e) {
return v;
}
};
// Batch get with fallback to archive
export const gfAll = async (keys: string[]) => {
if (!keys.length) return [];
const values = await db.mGet(keys);
const missing: number[] = [];
for (let i = 0; i < values.length; i++) {
if (values[i] === null) missing.push(i);
}
if (missing.length) {
const archiveKeys = missing.map((i) => keys[i]);
const archiveValues = await archive.mGet(archiveKeys);
for (let j = 0; j < missing.length; j++) {
values[missing[j]] = archiveValues[j];
}
}
return values.map((v) => {
try {
return JSON.parse(v as string);
} catch {
return v;
}
});
};
// lRange with fallback to archive for missing items
export const lRangeWithArchive = async (k, start, end) => {
const items = await db.lRange(k, start, end);
return items || [];
};
// Get payment/invoice with archive fallback - for individual lookups
export const getWithArchive = async (prefix, id) => {
let v = await db.get(`${prefix}:${id}`);
if (v === null) v = await archive.get(`${prefix}:${id}`);
if (v === null) return null;
try {
const parsed = JSON.parse(v as string);
// If it's a reference to another key, follow it
if (typeof parsed === "string") {
let ref = await db.get(`${prefix}:${parsed}`);
if (ref === null) ref = await archive.get(`${prefix}:${parsed}`);
if (ref === null) return null;
return JSON.parse(ref as string);
}
return parsed;
} catch (e) {
return v;
}
};
const retries = {};
export const t = async (k, f) => {
try {
await db.watch(k);
await f(await db.get(k), db);
} catch (err) {
if (!err.message.includes("watch")) throw err;
const r = retries[k] || 0;
retries[k] = r + 1;
if (r < 10) {
await sleep(100);
await t(k, f);
} else {
delete retries[k];
fail("unable to obtain lock");
}
}
delete retries[k];
};
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