package rbac

import (
	"context"
	"time"
)

// Cache is the pluggable caching backend for [NewCachedPermissionProvider].
// Satisfied by einherjar/cache-valkey via Go duck typing — no import of auth/rbac needed.
//
// Get returns (value, true, nil) on hit; (0, false, nil) on miss; (0, false, err) on error.
// Set errors are silently ignored by the provider — cache is best-effort.
type Cache interface {
	Get(ctx context.Context, key string) (int64, bool, error)
	Set(ctx context.Context, key string, value int64, ttl time.Duration) error
}