feat: version 2 beta

libraries/timestamp.ts

@@ -0,0 +1,49 @@
+export const RADIX = 36;
+
+export class Timestamp {
+  readonly time: number;
+  readonly logical: number;
+
+  constructor(time: TimeLike, logical = 0) {
+    this.time = typeof time === "string" ? parseInt(time, RADIX) : time;
+    this.logical = logical;
+  }
+
+  static bigger(a: Timestamp, b: Timestamp): Timestamp {
+    return a.compare(b) === -1 ? b : a;
+  }
+
+  encode(): string {
+    return this.time.toString(RADIX);
+  }
+
+  compare(other: Timestamp): 1 | 0 | -1 {
+    if (this.time > other.time) {
+      return 1;
+    }
+    if (this.time < other.time) {
+      return -1;
+    }
+    if (this.logical > other.logical) {
+      return 1;
+    }
+    if (this.logical < other.logical) {
+      return -1;
+    }
+    return 0;
+  }
+
+  toJSON(): TimestampJSON {
+    return Object.freeze({
+      time: this.encode(),
+      logical: this.logical,
+    });
+  }
+}
+
+export type TimeLike = string | number;
+
+type TimestampJSON = {
+  readonly time: string;
+  readonly logical: number;
+};