package storage

import (
	"context"
	"time"
)

// noopCacheManager satisfies CacheManager when external cache infrastructure is unavailable.
type noopCacheManager struct{}

// NewNoopCacheManager returns a cache manager that always misses and performs no persistence.
func NewNoopCacheManager() CacheManager {
	return &noopCacheManager{}
}

func (n *noopCacheManager) Get(ctx context.Context, key string) (interface{}, bool, error) {
	return nil, false, nil
}

func (n *noopCacheManager) Set(ctx context.Context, key string, data interface{}, ttl time.Duration) error {
	return nil
}

func (n *noopCacheManager) Delete(ctx context.Context, key string) error {
	return nil
}

func (n *noopCacheManager) DeletePattern(ctx context.Context, pattern string) error {
	return nil
}

func (n *noopCacheManager) Clear(ctx context.Context) error {
	return nil
}

func (n *noopCacheManager) Warm(ctx context.Context, keys []string) error {
	return nil
}

func (n *noopCacheManager) GetCacheStats() (*CacheStatistics, error) {
	return &CacheStatistics{}, nil
}

func (n *noopCacheManager) SetCachePolicy(policy *CachePolicy) error {
	return nil
}