// 线性解锁示例代码
class VestingSchedule {
  constructor(totalAmount, cliffDuration, vestingDuration) {
    this.totalAmount = totalAmount;
    this.cliffDuration = cliffDuration;
    this.vestingDuration = vestingDuration;
  }

  getUnlockedAmount(currentTime) {
    if (currentTime < this.cliffDuration) {
      return 0;
    }
    const elapsed = currentTime - this.cliffDuration;
    return Math.min(
      this.totalAmount,
      (this.totalAmount * elapsed) / this.vestingDuration
    );
  }
}