@ai2070/l0/dist/utils/uuid.js

L0: The Missing Reliability Substrate for AI

let externalV7;
try {
  const { v7 } = require("uuid");
  if (typeof v7 === "function") externalV7 = v7;
} catch {
}
function uuidv7() {
  if (externalV7) {
    return externalV7();
  }
  return internalV7();
}
const _state = {
  msecs: -Infinity,
  seq: 0
};
function getRandomBytes(length) {
  const bytes = new Uint8Array(length);
  if (typeof crypto !== "undefined" && crypto.getRandomValues) {
    crypto.getRandomValues(bytes);
  } else {
    for (let i = 0; i < length; i++) {
      bytes[i] = Math.floor(Math.random() * 256);
    }
  }
  return bytes;
}
function updateV7State(state, now, rnds) {
  if (now > state.msecs) {
    state.seq = rnds[6] << 24 | rnds[7] << 16 | rnds[8] << 8 | rnds[9];
    state.msecs = now;
  } else {
    state.seq = state.seq + 1 | 0;
    if (state.seq === 0) {
      state.msecs++;
    }
  }
}
function bytesToUuid(bytes) {
  const hex = Array.from(bytes).map((b) => b.toString(16).padStart(2, "0")).join("");
  return `${hex.slice(0, 8)}-${hex.slice(8, 12)}-${hex.slice(12, 16)}-${hex.slice(16, 20)}-${hex.slice(20)}`;
}
function internalV7() {
  const now = Date.now();
  const rnds = getRandomBytes(16);
  updateV7State(_state, now, rnds);
  const msecs = _state.msecs;
  const seq = _state.seq;
  const buf = new Uint8Array(16);
  let ts = msecs;
  buf[5] = ts & 255;
  ts = Math.floor(ts / 256);
  buf[4] = ts & 255;
  ts = Math.floor(ts / 256);
  buf[3] = ts & 255;
  ts = Math.floor(ts / 256);
  buf[2] = ts & 255;
  ts = Math.floor(ts / 256);
  buf[1] = ts & 255;
  ts = Math.floor(ts / 256);
  buf[0] = ts & 255;
  buf[6] = 112 | seq >>> 28 & 15;
  buf[7] = seq >>> 20 & 255;
  buf[8] = 128 | seq >>> 14 & 63;
  buf[9] = seq >>> 6 & 255;
  buf[10] = seq << 2 & 255 | rnds[10] & 3;
  buf[11] = rnds[11];
  buf[12] = rnds[12];
  buf[13] = rnds[13];
  buf[14] = rnds[14];
  buf[15] = rnds[15];
  return bytesToUuid(buf);
}
function _resetState() {
  _state.msecs = -Infinity;
  _state.seq = 0;
}
export {
  _resetState,
  internalV7,
  uuidv7
};
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