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package object
import (
"fmt"
"os"
"path/filepath"
"sync"
"gopkg.in/yaml.v3"
"thehouseoficarus/internal/behavior"
)
type ObjectStore struct {
mu sync.Mutex
dataDir string
pathIndex map[string]string
cache map[string]*ObjectDef
}
func NewObjectStore(dataDir string) *ObjectStore {
return &ObjectStore{
dataDir: dataDir,
pathIndex: behavior.BuildPathIndex(filepath.Join(dataDir, "objects")),
cache: make(map[string]*ObjectDef),
}
}
func (s *ObjectStore) Load(id string) (*ObjectDef, error) {
s.mu.Lock()
defer s.mu.Unlock()
if def, ok := s.cache[id]; ok {
return def, nil
}
path, ok := s.pathIndex[id]
if !ok {
return nil, fmt.Errorf("read object %s: no such object", id)
}
data, err := os.ReadFile(path)
if err != nil {
return nil, fmt.Errorf("read object %s: %w", id, err)
}
var def ObjectDef
if err := yaml.Unmarshal(data, &def); err != nil {
return nil, fmt.Errorf("parse object %s: %w", id, err)
}
def.ID = id
s.cache[id] = &def
return &def, nil
}
// PathIndex returns a copy of the id→path index, safe to iterate concurrently.
func (s *ObjectStore) PathIndex() map[string]string {
s.mu.Lock()
defer s.mu.Unlock()
out := make(map[string]string, len(s.pathIndex))
for id, p := range s.pathIndex {
out[id] = p
}
return out
}
func (s *ObjectStore) IDSet() map[string]bool {
s.mu.Lock()
defer s.mu.Unlock()
ids := make(map[string]bool, len(s.pathIndex))
for id := range s.pathIndex {
ids[id] = true
}
return ids
}
func (s *ObjectStore) Reload(dataDir string) {
s.mu.Lock()
defer s.mu.Unlock()
s.cache = make(map[string]*ObjectDef)
s.pathIndex = behavior.BuildPathIndex(filepath.Join(dataDir, "objects"))
}
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