36 lines
780 B
TypeScript
36 lines
780 B
TypeScript
// utils/mcid.ts
|
|
export class Mcid {
|
|
private lastTimestamp = -1;
|
|
private sequence = 0;
|
|
|
|
constructor(private readonly machineId: number = 0) {
|
|
if (machineId < 0 || machineId > 255) {
|
|
throw new Error('Machine ID must be between 0 and 255');
|
|
}
|
|
}
|
|
|
|
generate(): number {
|
|
let now = Date.now();
|
|
|
|
if (now < this.lastTimestamp) {
|
|
throw new Error('Clock moved backwards');
|
|
}
|
|
|
|
if (now === this.lastTimestamp) {
|
|
this.sequence = (this.sequence + 1) & 0xf;
|
|
if (this.sequence === 0) {
|
|
while (now <= this.lastTimestamp) {
|
|
now = Date.now();
|
|
}
|
|
}
|
|
} else {
|
|
this.sequence = 0;
|
|
}
|
|
|
|
this.lastTimestamp = now;
|
|
|
|
return (
|
|
(now * 0x1000) + (this.machineId * 16) + this.sequence
|
|
);
|
|
}
|
|
}
|