Prototype with single host server and no admin panel (#2)

Reviewed-on: wrenn/sandbox#2
Co-authored-by: pptx704 <rafeed@omukk.dev>
Co-committed-by: pptx704 <rafeed@omukk.dev>

envd/internal/utils/map.go

@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: Apache-2.0
+
+package utils
+
+import "sync"
+
+type Map[K comparable, V any] struct {
+	m sync.Map
+}
+
+func NewMap[K comparable, V any]() *Map[K, V] {
+	return &Map[K, V]{
+		m: sync.Map{},
+	}
+}
+
+func (m *Map[K, V]) Delete(key K) {
+	m.m.Delete(key)
+}
+
+func (m *Map[K, V]) Load(key K) (value V, ok bool) {
+	v, ok := m.m.Load(key)
+	if !ok {
+		return value, ok
+	}
+
+	return v.(V), ok
+}
+
+func (m *Map[K, V]) LoadAndDelete(key K) (value V, loaded bool) {
+	v, loaded := m.m.LoadAndDelete(key)
+	if !loaded {
+		return value, loaded
+	}
+
+	return v.(V), loaded
+}
+
+func (m *Map[K, V]) LoadOrStore(key K, value V) (actual V, loaded bool) {
+	a, loaded := m.m.LoadOrStore(key, value)
+
+	return a.(V), loaded
+}
+
+func (m *Map[K, V]) Range(f func(key K, value V) bool) {
+	m.m.Range(func(key, value any) bool {
+		return f(key.(K), value.(V))
+	})
+}
+
+func (m *Map[K, V]) Store(key K, value V) {
+	m.m.Store(key, value)
+}