fix: Rebase nft.go off latest runtime changes

Signed-off-by: Dan Sover <dan.sover@avalabs.org>

x/programs/examples/nft.go

@@ -5,84 +5,84 @@ package examples
 
 import (
 	"context"
+	"fmt"
+	"github.com/ava-labs/avalanchego/ids"
 	"github.com/ava-labs/avalanchego/utils/logging"
+	"github.com/ava-labs/hypersdk/state"
+	"github.com/ava-labs/hypersdk/x/programs/examples/storage"
 
-	"github.com/ava-labs/hypersdk/crypto/ed25519"
 	"github.com/ava-labs/hypersdk/x/programs/runtime"
-	"github.com/ava-labs/hypersdk/x/programs/utils"
-
 	"go.uber.org/zap"
 )
 
-func NewNFT(log logging.Logger, programBytes []byte, maxFee uint64, costMap map[string]uint64, m Metadata) *NFT {
+func NewNFT(log logging.Logger, programBytes []byte, cfg *runtime.Config, imports runtime.SupportedImports, db state.Mutable) *NFT {
 	return &NFT{
 		log:          log,
 		programBytes: programBytes,
-		metadata:     m,
-		maxFee:       maxFee,
-		costMap:      costMap,
+		cfg:          cfg,
+		imports:      imports,
+		db:           db,
 	}
 }
 
 type NFT struct {
 	log          logging.Logger
 	programBytes []byte
-	metadata     Metadata
-	// metering
-	maxFee  uint64
-	costMap map[string]uint64
-}
-
-type Metadata struct {
-	Name   string
-	Symbol string
-	URI    string
+	cfg          *runtime.Config
+	imports      runtime.SupportedImports
+	db           state.Mutable
 }
 
 func (t *NFT) Run(ctx context.Context) error {
-	meter := runtime.NewMeter(t.log, t.maxFee, t.costMap)
-	db := utils.NewTestDB()
-	store := newProgramStorage(db)
-
-	runtime := runtime.New(t.log, meter, store)
-	contractId, err := runtime.Create(ctx, t.programBytes)
+	rt := runtime.New(t.log, t.cfg, t.imports)
+	err := rt.Initialize(ctx, t.programBytes)
 	if err != nil {
 		return err
 	}
 
-	t.log.Debug("initial cost",
-		zap.Int("gas", 0),
+	t.log.Debug("initial meter",
+		zap.Uint64("balance", rt.Meter().GetBalance()),
 	)
 
-	// Generate keys for Alice
-	alicePtr, _, err := nftKeyPtr(ctx, runtime)
+	// simulate create program transaction
+	programID := ids.GenerateTestID()
+	err = storage.SetProgram(ctx, t.db, programID, t.programBytes)
 	if err != nil {
 		return err
 	}
 
-	_, err = runtime.Call(ctx, "init", contractId)
+	programIDPtr, err := runtime.WriteBytes(rt.Memory(), programID[:])
 	if err != nil {
 		return err
 	}
-	t.log.Debug("init called")
 
-	// mint 1 token, send to alice
-	_, err = runtime.Call(ctx, "mint", contractId, alicePtr)
+	// initialize program
+	resp, err := rt.Call(ctx, "init", programIDPtr)
+	if err != nil {
+		return fmt.Errorf("failed to initialize program: %w", err)
+	}
+
+	t.log.Debug("init response",
+		zap.Uint64("init", resp[0]),
+	)
+
+	_, aliceKey, err := newKey()
 	if err != nil {
 		return err
 	}
-	t.log.Debug("minted")
 
-	return nil
-}
+	// write alice's key to stack and get pointer
+	alicePtr, err := newKeyPtr(ctx, aliceKey, rt)
+	if err != nil {
+		return err
+	}
 
-func nftKeyPtr(ctx context.Context, runtime runtime.Runtime) (uint64, ed25519.PublicKey, error) {
-	priv, err := ed25519.GeneratePrivateKey()
+	// mint 1 token, send to alice
+	_, err = rt.Call(ctx, "mint", programIDPtr, alicePtr)
 	if err != nil {
-		return 0, ed25519.EmptyPublicKey, err
+		return err
 	}
+	t.log.Debug("minted")
 
-	pk := priv.PublicKey()
-	ptr, err := runtime.WriteGuestBuffer(ctx, pk[:])
-	return ptr, pk, err
+	return nil
 }