// debounce.dart

import 'dart:async';

import 'package:easy_debounce/easy_debounce.dart';
import 'package:easy_debounce/easy_throttle.dart';
import 'package:flutter/material.dart';

/// 函数防抖
///
/// [func]: 要执行的方法
/// [delay]: 要迟延的时长
VoidCallback debounce(Function func, [Duration delay = const Duration(milliseconds: 2000)]) {
  Timer? timer;
  target() {
    if (timer?.isActive ?? false) {
      timer?.cancel();
    }
    timer = Timer(delay, () {
      func.call();
    });
  }

  return target;
}

/// 函数节流
///
/// [func]: 要执行的方法
VoidCallback throttle(Future Function() func) {
  bool enable = true;
  target() {
    if (enable == true) {
      enable = false;
      func().whenComplete(() {
        enable = true;
      });
    }
  }

  return target;
}

/// 函数节流
///
/// [func]: 要执行的方法
bool easyThrottle(String tagId, EasyThrottleCallback onExecute,
    {Duration duration = const Duration(milliseconds: 300), EasyThrottleCallback? onAfter}) {
  return EasyThrottle.throttle(
      tagId, // <-- An ID for this particular throttler
      duration, // <-- The throttle duration
      onExecute, // <-- The target method
      onAfter: onAfter // <-- Optional callback, called after the duration has passed
      );
}

void easyDebounce(String tagId, {Duration duration = const Duration(milliseconds: 300), required EasyDebounceCallback onExecute}) =>
    EasyDebounce.debounce(tagId, duration, onExecute);