WIP Removing payloadStore

core/ledger.go

@@ -1,107 +1,14 @@
 package core
 
-import (
-	"context"
-	"time"
-
-	"github.com/google/uuid"
-	"lukechampine.com/blake3"
-)
+import ()
 
 type Ledger struct {
-	LedgerID LedgerID
-
-	entryStore   EntryStore
-	payloadStore PayloadStore
-
-	hashChaining bool
+	entryStore     EntryStore
+	referenceStore ReferenceStore
 }
 
-func NewLedger(entryStore EntryStore, payloadStore PayloadStore) (*Ledger, error) {
-	id, err := uuid.NewV7()
-	if err != nil {
-		return nil, err
-	}
-
-	idByes, err := id.MarshalBinary()
-	if err != nil {
-		return nil, err
-	}
-
+func NewLedger(entryStore EntryStore) (*Ledger, error) {
 	return &Ledger{
-		LedgerID:     LedgerID(idByes),
-		entryStore:   entryStore,
-		payloadStore: payloadStore,
+		entryStore: entryStore,
 	}, nil
 }
-
-func (l *Ledger) ID() LedgerID {
-	return l.LedgerID
-}
-
-func (l *Ledger) Head() (Entry, error) {
-	panic("unimplemented")
-}
-
-func (l *Ledger) Append(ctx context.Context, payload []byte) (EntryID, error) {
-	payloadDigest := blake3.Sum256(payload)
-	payloadID, err := l.payloadStore.Put(ctx, payload)
-	if err != nil {
-		return EntryID{}, err
-	}
-
-	entryID, err := uuid.NewV7()
-	entryIDBytes, err := entryID.MarshalBinary()
-	if err != nil {
-		return EntryID{}, err
-	}
-
-	head, err := l.Head()
-	if err != nil {
-		return EntryID{}, err
-	}
-
-	entry := Entry{
-		EntryID:       EntryID(entryIDBytes),
-		LedgerID:      l.LedgerID,
-		Seq:           head.Seq + 1,
-		Timestamp:     time.Now(),
-		PayloadID:     payloadID,
-		PayloadDigest: payloadDigest,
-	}
-
-	entryHash := HashEntry(entry)
-	entry.EntryHash = entryHash
-
-	err = l.entryStore.Append(ctx, entry)
-	if err != nil {
-		return EntryID{}, err
-	}
-
-	return EntryID(entryIDBytes), nil
-}
-
-func (l *Ledger) Get(ctx context.Context, seq uint64) (Entry, []byte, error) {
-	entry, err := l.entryStore.GetBySeq(ctx, l.LedgerID, seq)
-	if err != nil {
-		return Entry{}, nil, err
-	}
-	payload, err := l.payloadStore.Get(ctx, entry.PayloadID)
-	if err != nil {
-		return Entry{}, nil, err
-	}
-
-	return entry, payload, nil
-}
-
-func (l *Ledger) GetEntry(ctx context.Context, seq uint64) (Entry, error) {
-	panic("unimplemented")
-}
-
-func (l *Ledger) GetPayload(ctx context.Context, seq uint64) ([]byte, error) {
-	panic("unimplemented")
-}
-
-func (l *Ledger) Iter(ctx context.Context, startSeq uint64) (EntryIterator, error) {
-	panic("unimplemented")
-}