@earendil-works/pi-ai/dist/utils/uuid.js

Unified LLM API with automatic model discovery and provider configuration

const MAX_UUID_V7_TIMESTAMP = 0xffffffffffff;
const MAX_SEQUENCE = (1n << 41n) - 1n;
let lastOrdinaryTimestamp = -1;
let sequence;
/** Generate a time-ordered UUIDv7. A supplied timestamp is preserved for follower ids. */
export function uuidv7(timestampMs) {
    const requestedTimestamp = timestampMs ?? Date.now();
    if (!Number.isInteger(requestedTimestamp) || requestedTimestamp < 0 || requestedTimestamp > MAX_UUID_V7_TIMESTAMP) {
        throw new RangeError(`UUIDv7 timestamp must be an integer between 0 and ${MAX_UUID_V7_TIMESTAMP}`);
    }
    const effectiveTimestamp = timestampMs === undefined ? Math.max(requestedTimestamp, lastOrdinaryTimestamp) : timestampMs;
    if (timestampMs === undefined)
        lastOrdinaryTimestamp = effectiveTimestamp;
    const bytes = new Uint8Array(16);
    globalThis.crypto.getRandomValues(bytes);
    if (sequence === undefined) {
        sequence =
            (BigInt(bytes[1]) << 32n) |
                (BigInt(bytes[2]) << 24n) |
                (BigInt(bytes[3]) << 16n) |
                (BigInt(bytes[4]) << 8n) |
                BigInt(bytes[5]);
    }
    else {
        if (sequence === MAX_SEQUENCE)
            throw new RangeError("UUIDv7 generator sequence exhausted");
        sequence++;
    }
    const timestamp = BigInt(effectiveTimestamp);
    for (let index = 5; index >= 0; index--) {
        bytes[index] = Number(timestamp >> BigInt((5 - index) * 8)) & 0xff;
    }
    bytes[6] = 0x70 | Number((sequence >> 37n) & 0x0fn);
    bytes[7] = Number((sequence >> 29n) & 0xffn);
    bytes[8] = 0x80 | Number((sequence >> 23n) & 0x3fn);
    bytes[9] = Number((sequence >> 15n) & 0xffn);
    bytes[10] = Number((sequence >> 7n) & 0xffn);
    bytes[11] = Number((sequence & 0x7fn) << 1n) | (bytes[11] & 0x01);
    const hex = Array.from(bytes, (byte) => byte.toString(16).padStart(2, "0"));
    return `${hex.slice(0, 4).join("")}-${hex.slice(4, 6).join("")}-${hex.slice(6, 8).join("")}-${hex.slice(8, 10).join("")}-${hex.slice(10).join("")}`;
}
//# sourceMappingURL=uuid.js.map