first commit

internal/infrastructure/cache/cache.go

@@ -0,0 +1,71 @@
+// File: /home/meninjar/goprint/service-general/internal/infrastructure/cache/cache.go
+package cache
+
+import (
+	"context"
+	"time"
+)
+
+// Cache interface defines the contract for cache implementations
+type Cache interface {
+	// Basic operations
+	Get(ctx context.Context, key string) (string, error)
+	Set(ctx context.Context, key string, value string, expiration time.Duration) error
+	Delete(ctx context.Context, key string) error
+	Exists(ctx context.Context, key string) (bool, error)
+
+	// Struct operations
+	GetStruct(ctx context.Context, key string, dest interface{}) error
+	SetStruct(ctx context.Context, key string, value interface{}, expiration time.Duration) error
+
+	// Numeric operations
+	Increment(ctx context.Context, key string, delta int64) (int64, error)
+	Decrement(ctx context.Context, key string, delta int64) (int64, error)
+
+	// Utility operations
+	TTL(ctx context.Context, key string) (time.Duration, error)
+	Close() error
+	Health(ctx context.Context) error
+
+	// Batch operations
+	MGet(ctx context.Context, keys ...string) ([]interface{}, error)
+	MSet(ctx context.Context, items map[string]interface{}, expiration time.Duration) error
+}
+
+// CacheConfig holds configuration for cache
+type CacheConfig struct {
+	Enabled         bool
+	DefaultTTL      time.Duration
+	SessionTTL      time.Duration
+	RateLimitTTL    time.Duration
+	CleanupInterval time.Duration
+	MaxRetries      int
+	RetryDelay      time.Duration
+	Redis           RedisConfig
+}
+
+type RedisConfig struct {
+	Host     string
+	Port     int
+	Password string
+	DB       int
+}
+
+// Common cache key prefixes
+const (
+	KeyPrefixSession   = "session:"
+	KeyPrefixUser      = "user:"
+	KeyPrefixToken     = "token:"
+	KeyPrefixRateLimit = "rate_limit:"
+	KeyPrefixCache     = "cache:"
+	KeyPrefixTemp      = "temp:"
+)
+
+// Common expiration times
+const (
+	ExpirationSession  = 24 * time.Hour
+	ExpirationShort    = 5 * time.Minute
+	ExpirationMedium   = 30 * time.Minute
+	ExpirationLong     = 2 * time.Hour
+	ExpirationVeryLong = 24 * time.Hour
+)