Metadata refactor

- All Metadata features are now `map[string][]byte` instead of `[]byte`
- Removed StateMetadata in favor of new GovernorMetadata feature

api_v3.go

@@ -90,7 +90,7 @@ var (
 
 	anchorOutputV3FeatBlocksArrRules = &serix.ArrayRules{
 		Min: 0, // Min: -
-		Max: 2, // Max: SenderFeature, MetadataFeature
+		Max: 3, // Max: SenderFeature, MetadataFeature, GovernorMetadataFeature
 		ValidationMode: serializer.ArrayValidationModeNoDuplicates |
 			serializer.ArrayValidationModeLexicalOrdering |
 			serializer.ArrayValidationModeAtMostOneOfEachTypeByte,
@@ -340,9 +340,33 @@ func V3API(protoParams ProtocolParameters) API {
 		must(api.RegisterTypeSettings(IssuerFeature{},
 			serix.TypeSettings{}.WithObjectType(uint8(FeatureIssuer))),
 		)
+
+		must(api.RegisterTypeSettings(MetadataFeatureEntriesKey(""),
+			serix.TypeSettings{}.WithLengthPrefixType(serix.LengthPrefixTypeAsByte).WithMinLen(1).WithMaxLen(64)),
+		)
+		must(api.RegisterTypeSettings(MetadataFeatureEntriesValue{},
+			serix.TypeSettings{}.WithLengthPrefixType(serix.LengthPrefixTypeAsUint16).WithMinLen(0).WithMaxLen(1000)),
+		)
+		must(api.RegisterTypeSettings(MetadataFeatureEntries{},
+			serix.TypeSettings{}.WithLengthPrefixType(serix.LengthPrefixTypeAsByte).WithMinLen(1).WithMaxLen(64).WithMaxByteSize(8192)),
+		)
 		must(api.RegisterTypeSettings(MetadataFeature{},
 			serix.TypeSettings{}.WithObjectType(uint8(FeatureMetadata))),
 		)
+
+		must(api.RegisterTypeSettings(GovernorMetadataFeatureEntriesKey(""),
+			serix.TypeSettings{}.WithLengthPrefixType(serix.LengthPrefixTypeAsByte).WithMinLen(1).WithMaxLen(64)),
+		)
+		must(api.RegisterTypeSettings(GovernorMetadataFeatureEntriesValue{},
+			serix.TypeSettings{}.WithLengthPrefixType(serix.LengthPrefixTypeAsUint16).WithMinLen(0).WithMaxLen(1000)),
+		)
+		must(api.RegisterTypeSettings(GovernorMetadataFeatureEntries{},
+			serix.TypeSettings{}.WithLengthPrefixType(serix.LengthPrefixTypeAsByte).WithMinLen(1).WithMaxLen(64).WithMaxByteSize(8192)),
+		)
+		must(api.RegisterTypeSettings(GovernorMetadataFeature{},
+			serix.TypeSettings{}.WithObjectType(uint8(FeatureMetadataGovernor))),
+		)
+
 		must(api.RegisterTypeSettings(TagFeature{},
 			serix.TypeSettings{}.WithObjectType(uint8(FeatureTag))),
 		)
@@ -358,6 +382,7 @@ func V3API(protoParams ProtocolParameters) API {
 		must(api.RegisterInterfaceObjects((*Feature)(nil), (*SenderFeature)(nil)))
 		must(api.RegisterInterfaceObjects((*Feature)(nil), (*IssuerFeature)(nil)))
 		must(api.RegisterInterfaceObjects((*Feature)(nil), (*MetadataFeature)(nil)))
+		must(api.RegisterInterfaceObjects((*Feature)(nil), (*GovernorMetadataFeature)(nil)))
 		must(api.RegisterInterfaceObjects((*Feature)(nil), (*TagFeature)(nil)))
 		must(api.RegisterInterfaceObjects((*Feature)(nil), (*NativeTokenFeature)(nil)))
 		must(api.RegisterInterfaceObjects((*Feature)(nil), (*BlockIssuerFeature)(nil)))
@@ -496,6 +521,7 @@ func V3API(protoParams ProtocolParameters) API {
 
 		must(api.RegisterInterfaceObjects((*anchorOutputFeature)(nil), (*SenderFeature)(nil)))
 		must(api.RegisterInterfaceObjects((*anchorOutputFeature)(nil), (*MetadataFeature)(nil)))
+		must(api.RegisterInterfaceObjects((*anchorOutputFeature)(nil), (*GovernorMetadataFeature)(nil)))
 
 		must(api.RegisterTypeSettings(AnchorOutputImmFeatures{},
 			serix.TypeSettings{}.WithLengthPrefixType(serix.LengthPrefixTypeAsByte).WithArrayRules(anchorOutputV3ImmFeatBlocksArrRules),

builder/output_builder_account.go

@@ -114,16 +114,16 @@ func (builder *AccountOutputBuilder) ImmutableSender(senderAddr iotago.Address)
 }
 
 // Metadata sets/modifies an iotago.MetadataFeature on the output.
-func (builder *AccountOutputBuilder) Metadata(data []byte) *AccountOutputBuilder {
-	builder.output.Features.Upsert(&iotago.MetadataFeature{Data: data})
+func (builder *AccountOutputBuilder) Metadata(entries iotago.MetadataFeatureEntries) *AccountOutputBuilder {
+	builder.output.Features.Upsert(&iotago.MetadataFeature{Entries: entries})
 
 	return builder
 }
 
 // ImmutableMetadata sets/modifies an iotago.MetadataFeature as an immutable feature on the output.
 // Only call this function on a new iotago.AccountOutput.
-func (builder *AccountOutputBuilder) ImmutableMetadata(data []byte) *AccountOutputBuilder {
-	builder.output.ImmutableFeatures.Upsert(&iotago.MetadataFeature{Data: data})
+func (builder *AccountOutputBuilder) ImmutableMetadata(entries iotago.MetadataFeatureEntries) *AccountOutputBuilder {
+	builder.output.ImmutableFeatures.Upsert(&iotago.MetadataFeature{Entries: entries})
 
 	return builder
 }

builder/output_builder_anchor.go

@@ -8,11 +8,10 @@ import (
 // NewAnchorOutputBuilder creates a new AnchorOutputBuilder with the required state controller/governor addresses and base token amount.
 func NewAnchorOutputBuilder(stateCtrl iotago.Address, govAddr iotago.Address, amount iotago.BaseToken) *AnchorOutputBuilder {
 	return &AnchorOutputBuilder{output: &iotago.AnchorOutput{
-		Amount:        amount,
-		Mana:          0,
-		AnchorID:      iotago.EmptyAnchorID,
-		StateIndex:    0,
-		StateMetadata: []byte{},
+		Amount:     amount,
+		Mana:       0,
+		AnchorID:   iotago.EmptyAnchorID,
+		StateIndex: 0,
 		UnlockConditions: iotago.AnchorOutputUnlockConditions{
 			&iotago.StateControllerAddressUnlockCondition{Address: stateCtrl},
 			&iotago.GovernorAddressUnlockCondition{Address: govAddr},
@@ -62,14 +61,6 @@ func (builder *AnchorOutputBuilder) AnchorID(anchorID iotago.AnchorID) *AnchorOu
 	return builder
 }
 
-// StateMetadata sets the state metadata of the output.
-func (builder *AnchorOutputBuilder) StateMetadata(data []byte) *AnchorOutputBuilder {
-	builder.output.StateMetadata = data
-	builder.stateCtrlReq = true
-
-	return builder
-}
-
 // StateController sets the iotago.StateControllerAddressUnlockCondition of the output.
 func (builder *AnchorOutputBuilder) StateController(stateCtrl iotago.Address) *AnchorOutputBuilder {
 	builder.output.UnlockConditions.Upsert(&iotago.StateControllerAddressUnlockCondition{Address: stateCtrl})
@@ -103,17 +94,25 @@ func (builder *AnchorOutputBuilder) ImmutableSender(senderAddr iotago.Address) *
 }
 
 // Metadata sets/modifies an iotago.MetadataFeature on the output.
-func (builder *AnchorOutputBuilder) Metadata(data []byte) *AnchorOutputBuilder {
-	builder.output.Features.Upsert(&iotago.MetadataFeature{Data: data})
+func (builder *AnchorOutputBuilder) Metadata(entries iotago.MetadataFeatureEntries) *AnchorOutputBuilder {
+	builder.output.Features.Upsert(&iotago.MetadataFeature{Entries: entries})
+	builder.stateCtrlReq = true
+
+	return builder
+}
+
+// GovernorMetadata sets/modifies an iotago.GovernorMetadataFeature on the output.
+func (builder *AnchorOutputBuilder) GovernorMetadata(entries iotago.GovernorMetadataFeatureEntries) *AnchorOutputBuilder {
+	builder.output.Features.Upsert(&iotago.GovernorMetadataFeature{Entries: entries})
 	builder.govCtrlReq = true
 
 	return builder
 }
 
 // ImmutableMetadata sets/modifies an iotago.MetadataFeature as an immutable feature on the output.
 // Only call this function on a new iotago.AnchorOutput.
-func (builder *AnchorOutputBuilder) ImmutableMetadata(data []byte) *AnchorOutputBuilder {
-	builder.output.ImmutableFeatures.Upsert(&iotago.MetadataFeature{Data: data})
+func (builder *AnchorOutputBuilder) ImmutableMetadata(entries iotago.MetadataFeatureEntries) *AnchorOutputBuilder {
+	builder.output.ImmutableFeatures.Upsert(&iotago.MetadataFeature{Entries: entries})
 
 	return builder
 }
@@ -171,9 +170,9 @@ func (trans *AnchorStateTransition) Mana(mana iotago.Mana) *AnchorStateTransitio
 	return trans.builder.Mana(mana).StateTransition()
 }
 
-// StateMetadata sets the state metadata of the output.
-func (trans *AnchorStateTransition) StateMetadata(data []byte) *AnchorStateTransition {
-	return trans.builder.StateMetadata(data).StateTransition()
+// Metadata sets/modifies an iotago.MetadataFeature as a mutable feature on the output.
+func (trans *AnchorStateTransition) Metadata(entries iotago.MetadataFeatureEntries) *AnchorStateTransition {
+	return trans.builder.Metadata(entries).StateTransition()
 }
 
 // Sender sets/modifies an iotago.SenderFeature as a mutable feature on the output.
@@ -212,9 +211,9 @@ func (trans *AnchorGovernanceTransition) Sender(senderAddr iotago.Address) *Anch
 	return trans.builder.Sender(senderAddr).GovernanceTransition()
 }
 
-// Metadata sets/modifies an iotago.MetadataFeature as a mutable feature on the output.
-func (trans *AnchorGovernanceTransition) Metadata(data []byte) *AnchorGovernanceTransition {
-	return trans.builder.Metadata(data).GovernanceTransition()
+// GovernorMetadata sets/modifies an iotago.GovernorMetadataFeature on the output.
+func (trans *AnchorGovernanceTransition) GovernorMetadata(entries iotago.GovernorMetadataFeatureEntries) *AnchorGovernanceTransition {
+	return trans.builder.GovernorMetadata(entries).GovernanceTransition()
 }
 
 // Builder returns the AnchorOutputBuilder.

builder/output_builder_basic.go

@@ -84,8 +84,8 @@ func (builder *BasicOutputBuilder) Sender(senderAddr iotago.Address) *BasicOutpu
 }
 
 // Metadata sets/modifies an iotago.MetadataFeature on the output.
-func (builder *BasicOutputBuilder) Metadata(data []byte) *BasicOutputBuilder {
-	builder.output.Features.Upsert(&iotago.MetadataFeature{Data: data})
+func (builder *BasicOutputBuilder) Metadata(entries iotago.MetadataFeatureEntries) *BasicOutputBuilder {
+	builder.output.Features.Upsert(&iotago.MetadataFeature{Entries: entries})
 
 	return builder
 }

builder/output_builder_foundry.go

@@ -49,16 +49,16 @@ func (builder *FoundryOutputBuilder) NativeToken(nt *iotago.NativeTokenFeature)
 }
 
 // Metadata sets/modifies an iotago.MetadataFeature on the output.
-func (builder *FoundryOutputBuilder) Metadata(data []byte) *FoundryOutputBuilder {
-	builder.output.Features.Upsert(&iotago.MetadataFeature{Data: data})
+func (builder *FoundryOutputBuilder) Metadata(entries iotago.MetadataFeatureEntries) *FoundryOutputBuilder {
+	builder.output.Features.Upsert(&iotago.MetadataFeature{Entries: entries})
 
 	return builder
 }
 
 // ImmutableMetadata sets/modifies an iotago.MetadataFeature as an immutable feature on the output.
-// Only call this function on a new iotago.AccountOutput.
-func (builder *FoundryOutputBuilder) ImmutableMetadata(data []byte) *FoundryOutputBuilder {
-	builder.output.ImmutableFeatures.Upsert(&iotago.MetadataFeature{Data: data})
+// Only call this function on a new iotago.FoundryOutput.
+func (builder *FoundryOutputBuilder) ImmutableMetadata(entries iotago.MetadataFeatureEntries) *FoundryOutputBuilder {
+	builder.output.ImmutableFeatures.Upsert(&iotago.MetadataFeature{Entries: entries})
 
 	return builder
 }

builder/output_builder_nft.go

@@ -92,16 +92,16 @@ func (builder *NFTOutputBuilder) Sender(senderAddr iotago.Address) *NFTOutputBui
 }
 
 // Metadata sets/modifies an iotago.MetadataFeature on the output.
-func (builder *NFTOutputBuilder) Metadata(data []byte) *NFTOutputBuilder {
-	builder.output.Features.Upsert(&iotago.MetadataFeature{Data: data})
+func (builder *NFTOutputBuilder) Metadata(entries iotago.MetadataFeatureEntries) *NFTOutputBuilder {
+	builder.output.Features.Upsert(&iotago.MetadataFeature{Entries: entries})
 
 	return builder
 }
 
 // ImmutableMetadata sets/modifies an iotago.MetadataFeature as an immutable feature on the output.
 // Only call this function on a new iotago.NFTOutput.
-func (builder *NFTOutputBuilder) ImmutableMetadata(data []byte) *NFTOutputBuilder {
-	builder.output.ImmutableFeatures.Upsert(&iotago.MetadataFeature{Data: data})
+func (builder *NFTOutputBuilder) ImmutableMetadata(entries iotago.MetadataFeatureEntries) *NFTOutputBuilder {
+	builder.output.ImmutableFeatures.Upsert(&iotago.MetadataFeature{Entries: entries})
 
 	return builder
 }