// Package utils -----------------------------
// @file      : arrary.go
// @author    : JJXu
// @contact   : wavingbear@163.com
// @time      : 2023/9/7 16:51
// -------------------------------------------
package utils

// 数组去重
func ArrayDeduplicate[T int | int64 | string | int32 | bool](arr []T) []T {
	var subs []T
	for _, v := range arr {
		if len(subs) == 0 {
			subs = append(subs, v)
		} else {
			var exist bool
			for _, s := range subs {
				if s == v {
					exist = true
					break
				}
			}
			if !exist {
				subs = append(subs, v)
			}
		}
	}
	return subs
}

// Intersection 数组取交集
func Intersection(slice1 []string, slice2 []string) []string {
	m := make(map[string]bool)
	for _, item := range slice1 {
		m[item] = true
	}

	var result []string
	for _, item := range slice2 {
		if _, ok := m[item]; ok {
			result = append(result, item)
		}
	}
	return result
}

func DifferentFrom(origin []string, needRemove []string) []string {
	var newList = []string{}
	if len(origin) == 0 {
		return newList
	}
	if len(needRemove) == 0 {
		return origin
	}
	for _, item := range origin {
		var remove bool
		for _, removeItem := range needRemove {
			if item == removeItem {
				remove = true
				break
			}
		}
		if !remove {
			newList = append(newList, item)
		}
	}

	return newList
}