refactor(schema): extract shared public schemas (#33571)

packages/schema/src/identifier.ts

@@ -0,0 +1,30 @@
+const length = 26
+const chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+let lastTimestamp = 0
+let counter = 0
+
+export function ascending() {
+  return create(false)
+}
+
+export function descending() {
+  return create(true)
+}
+
+export function create(descending: boolean, timestamp = Date.now()) {
+  if (timestamp !== lastTimestamp) {
+    lastTimestamp = timestamp
+    counter = 0
+  }
+  counter++
+
+  const current = BigInt(timestamp) * 0x1000n + BigInt(counter)
+  const value = descending ? ~current : current
+  const time = Array.from({ length: 6 }, (_, index) =>
+    Number((value >> BigInt(40 - 8 * index)) & 0xffn)
+      .toString(16)
+      .padStart(2, "0"),
+  ).join("")
+  const bytes = crypto.getRandomValues(new Uint8Array(length - 12))
+  return time + Array.from(bytes, (byte) => chars[byte % 62]).join("")
+}