package utils

func Filter[T any](items []T, predicate func(T) bool) []T {
	var result []T
	for _, item := range items {
		if predicate(item) {
			result = append(result, item)
		}
	}
	return result
}

func Find[T any](items []T, predicate func(T) bool) (T, bool) {
	for _, item := range items {
		if predicate(item) {
			return item, true
		}
	}
	var zero T
	return zero, false
}

func Map[T, U any](items []T, transform func(T) U) []U {
	result := make([]U, len(items))
	for i, item := range items {
		result[i] = transform(item)
	}
	return result
}

func Contains[T comparable](items []T, target T) bool {
	for _, item := range items {
		if item == target {
			return true
		}
	}
	return false
}

func Any[T any](items []T, predicate func(T) bool) bool {
	for _, item := range items {
		if predicate(item) {
			return true
		}
	}
	return false
}

func All[T any](items []T, predicate func(T) bool) bool {
	for _, item := range items {
		if !predicate(item) {
			return false
		}
	}
	return true
}