package pkg

import "sync"

// SafeMap is a type-safe wrapper around sync.Map
type SafeMap[K comparable, V any] struct {
	m sync.Map
}

// Store sets the value for a key.
func (t *SafeMap[K, V]) Store(key K, value V) {
	t.m.Store(key, value)
}

// Load returns the value for a key, and whether the key was found.
func (t *SafeMap[K, V]) Load(key K) (V, bool) {
	value, ok := t.m.Load(key)
	if !ok {
		var zero V
		return zero, false
	}
	return value.(V), true
}

// LoadOrStore returns the existing value for the key if present.
// Otherwise, it stores and returns the given value.
func (t *SafeMap[K, V]) LoadOrStore(key K, value V) (V, bool) {
	actual, loaded := t.m.LoadOrStore(key, value)
	return actual.(V), loaded
}

// Delete removes the key and its value from the map.
func (t *SafeMap[K, V]) Delete(key K) {
	t.m.Delete(key)
}

// Range iterates over all key-value pairs in the map.
func (t *SafeMap[K, V]) Range(f func(key K, value V) bool) {
	t.m.Range(func(key, value interface{}) bool {
		return f(key.(K), value.(V))
	})
}