feat: add initial project layout

pkg/cache/cache.go

@@ -0,0 +1,47 @@
+package cache
+
+import (
+	"sync"
+)
+
+// Cache represents an in-memory key-value store.
+type Cache struct {
+	data map[string]any
+	mu   sync.RWMutex
+}
+
+// NewCache creates and initializes a new Cache instance.
+func NewCache() *Cache {
+	return &Cache{
+		data: make(map[string]any),
+	}
+}
+
+// Set adds or updates a key-value pair in the cache.
+func (c *Cache) Set(key string, value any) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	c.data[key] = value
+}
+
+// Get retrieves the value associated with the given key from the cache.
+func (c *Cache) Get(key string) (any, bool) {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	value, ok := c.data[key]
+	return value, ok
+}
+
+// Delete removes a key-value pair from the cache.
+func (c *Cache) Delete(key string) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	delete(c.data, key)
+}
+
+// Clear removes all key-value pairs from the cache.
+func (c *Cache) Clear() {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	c.data = make(map[string]any)
+}