Update auction creator refund amount calculation

api/cerc/auction/v1/auction.pulsar.go

@@ -3850,6 +3850,7 @@ type Params struct {
 	// Reveal fees
 	RevealFee *v1beta1.Coin `protobuf:"bytes,4,opt,name=reveal_fee,json=revealFee,proto3" json:"reveal_fee,omitempty"`
 	// Minimum acceptable bid amount
+	// Only applicable in vickrey auctions
 	MinimumBid *v1beta1.Coin `protobuf:"bytes,5,opt,name=minimum_bid,json=minimumBid,proto3" json:"minimum_bid,omitempty"`
 }
 
@@ -3915,7 +3916,7 @@ type Auction struct {
 	unknownFields protoimpl.UnknownFields
 
 	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-	// Auction's kind (vickrey | provider)
+	// Auction kind (vickrey | provider)
 	Kind   string `protobuf:"bytes,2,opt,name=kind,proto3" json:"kind,omitempty"`
 	Status string `protobuf:"bytes,3,opt,name=status,proto3" json:"status,omitempty"`
 	// Address of the creator of the auction
@@ -3931,19 +3932,24 @@ type Auction struct {
 	CommitFee *v1beta1.Coin `protobuf:"bytes,8,opt,name=commit_fee,json=commitFee,proto3" json:"commit_fee,omitempty"`
 	RevealFee *v1beta1.Coin `protobuf:"bytes,9,opt,name=reveal_fee,json=revealFee,proto3" json:"reveal_fee,omitempty"`
 	// Minimum acceptable bid amount for a valid commit
+	// Only applicable in vickrey auctions
 	MinimumBid *v1beta1.Coin `protobuf:"bytes,10,opt,name=minimum_bid,json=minimumBid,proto3" json:"minimum_bid,omitempty"`
-	// Addresses of the winners (one for vickrey auctions and can be multiple for
+	// Addresses of the winners
-	// provider auctions)
+	// (single winner for vickrey auction)
+	// (multiple winners for provider auctions)
 	WinnerAddresses []string `protobuf:"bytes,11,rep,name=winner_addresses,json=winnerAddresses,proto3" json:"winner_addresses,omitempty"`
-	// Winning bids, i.e., the best bids
+	// Winning bids, i.e. the best bids
 	WinningBids []*v1beta1.Coin `protobuf:"bytes,12,rep,name=winning_bids,json=winningBids,proto3" json:"winning_bids,omitempty"`
-	// Amount the winner pays (vickrey auction) or gets paid (provider auction),
+	// Auction winning price
-	// i.e. the second best bid
+	// vickrey auction: second highest bid, paid by the winner
+	// provider auction: higest bid amongst winning_bids, paid by auction creator
+	// to each winner
 	WinningPrice *v1beta1.Coin `protobuf:"bytes,13,opt,name=winning_price,json=winningPrice,proto3" json:"winning_price,omitempty"`
-	// Maximum acceptable bid amount for a valid commit for service provider
+	// Maximum acceptable bid amount for a valid commit
-	// auctions
+	// Only applicable in provider auctions
 	MaxPrice *v1beta1.Coin `protobuf:"bytes,14,opt,name=max_price,json=maxPrice,proto3" json:"max_price,omitempty"`
-	// Number of providers to be selected
+	// Number of desired providers (num of auction winners)
+	// Only applicable in provider auctions
 	NumProviders int32 `protobuf:"varint,15,opt,name=num_providers,json=numProviders,proto3" json:"num_providers,omitempty"`
 }
 

api/cerc/auction/v1/tx.pulsar.go

@@ -20,13 +20,13 @@ import (
 
 var (
 	md_MsgCreateAuction                  protoreflect.MessageDescriptor
+	fd_MsgCreateAuction_signer           protoreflect.FieldDescriptor
+	fd_MsgCreateAuction_kind             protoreflect.FieldDescriptor
 	fd_MsgCreateAuction_commits_duration protoreflect.FieldDescriptor
 	fd_MsgCreateAuction_reveals_duration protoreflect.FieldDescriptor
 	fd_MsgCreateAuction_commit_fee       protoreflect.FieldDescriptor
 	fd_MsgCreateAuction_reveal_fee       protoreflect.FieldDescriptor
 	fd_MsgCreateAuction_minimum_bid      protoreflect.FieldDescriptor
-	fd_MsgCreateAuction_signer           protoreflect.FieldDescriptor
-	fd_MsgCreateAuction_kind             protoreflect.FieldDescriptor
 	fd_MsgCreateAuction_max_price        protoreflect.FieldDescriptor
 	fd_MsgCreateAuction_num_providers    protoreflect.FieldDescriptor
 )
@@ -34,13 +34,13 @@ var (
 func init() {
 	file_cerc_auction_v1_tx_proto_init()
 	md_MsgCreateAuction = File_cerc_auction_v1_tx_proto.Messages().ByName("MsgCreateAuction")
+	fd_MsgCreateAuction_signer = md_MsgCreateAuction.Fields().ByName("signer")
+	fd_MsgCreateAuction_kind = md_MsgCreateAuction.Fields().ByName("kind")
 	fd_MsgCreateAuction_commits_duration = md_MsgCreateAuction.Fields().ByName("commits_duration")
 	fd_MsgCreateAuction_reveals_duration = md_MsgCreateAuction.Fields().ByName("reveals_duration")
 	fd_MsgCreateAuction_commit_fee = md_MsgCreateAuction.Fields().ByName("commit_fee")
 	fd_MsgCreateAuction_reveal_fee = md_MsgCreateAuction.Fields().ByName("reveal_fee")
 	fd_MsgCreateAuction_minimum_bid = md_MsgCreateAuction.Fields().ByName("minimum_bid")
-	fd_MsgCreateAuction_signer = md_MsgCreateAuction.Fields().ByName("signer")
-	fd_MsgCreateAuction_kind = md_MsgCreateAuction.Fields().ByName("kind")
 	fd_MsgCreateAuction_max_price = md_MsgCreateAuction.Fields().ByName("max_price")
 	fd_MsgCreateAuction_num_providers = md_MsgCreateAuction.Fields().ByName("num_providers")
 }
@@ -110,6 +110,18 @@ func (x *fastReflection_MsgCreateAuction) Interface() protoreflect.ProtoMessage
 // While iterating, mutating operations may only be performed
 // on the current field descriptor.
 func (x *fastReflection_MsgCreateAuction) Range(f func(protoreflect.FieldDescriptor, protoreflect.Value) bool) {
+	if x.Signer != "" {
+		value := protoreflect.ValueOfString(x.Signer)
+		if !f(fd_MsgCreateAuction_signer, value) {
+			return
+		}
+	}
+	if x.Kind != "" {
+		value := protoreflect.ValueOfString(x.Kind)
+		if !f(fd_MsgCreateAuction_kind, value) {
+			return
+		}
+	}
 	if x.CommitsDuration != nil {
 		value := protoreflect.ValueOfMessage(x.CommitsDuration.ProtoReflect())
 		if !f(fd_MsgCreateAuction_commits_duration, value) {
@@ -140,18 +152,6 @@ func (x *fastReflection_MsgCreateAuction) Range(f func(protoreflect.FieldDescrip
 			return
 		}
 	}
-	if x.Signer != "" {
-		value := protoreflect.ValueOfString(x.Signer)
-		if !f(fd_MsgCreateAuction_signer, value) {
-			return
-		}
-	}
-	if x.Kind != "" {
-		value := protoreflect.ValueOfString(x.Kind)
-		if !f(fd_MsgCreateAuction_kind, value) {
-			return
-		}
-	}
 	if x.MaxPrice != nil {
 		value := protoreflect.ValueOfMessage(x.MaxPrice.ProtoReflect())
 		if !f(fd_MsgCreateAuction_max_price, value) {
@@ -179,6 +179,10 @@ func (x *fastReflection_MsgCreateAuction) Range(f func(protoreflect.FieldDescrip
 // a repeated field is populated if it is non-empty.
 func (x *fastReflection_MsgCreateAuction) Has(fd protoreflect.FieldDescriptor) bool {
 	switch fd.FullName() {
+	case "cerc.auction.v1.MsgCreateAuction.signer":
+		return x.Signer != ""
+	case "cerc.auction.v1.MsgCreateAuction.kind":
+		return x.Kind != ""
 	case "cerc.auction.v1.MsgCreateAuction.commits_duration":
 		return x.CommitsDuration != nil
 	case "cerc.auction.v1.MsgCreateAuction.reveals_duration":
@@ -189,10 +193,6 @@ func (x *fastReflection_MsgCreateAuction) Has(fd protoreflect.FieldDescriptor) b
 		return x.RevealFee != nil
 	case "cerc.auction.v1.MsgCreateAuction.minimum_bid":
 		return x.MinimumBid != nil
-	case "cerc.auction.v1.MsgCreateAuction.signer":
-		return x.Signer != ""
-	case "cerc.auction.v1.MsgCreateAuction.kind":
-		return x.Kind != ""
 	case "cerc.auction.v1.MsgCreateAuction.max_price":
 		return x.MaxPrice != nil
 	case "cerc.auction.v1.MsgCreateAuction.num_providers":
@@ -213,6 +213,10 @@ func (x *fastReflection_MsgCreateAuction) Has(fd protoreflect.FieldDescriptor) b
 // Clear is a mutating operation and unsafe for concurrent use.
 func (x *fastReflection_MsgCreateAuction) Clear(fd protoreflect.FieldDescriptor) {
 	switch fd.FullName() {
+	case "cerc.auction.v1.MsgCreateAuction.signer":
+		x.Signer = ""
+	case "cerc.auction.v1.MsgCreateAuction.kind":
+		x.Kind = ""
 	case "cerc.auction.v1.MsgCreateAuction.commits_duration":
 		x.CommitsDuration = nil
 	case "cerc.auction.v1.MsgCreateAuction.reveals_duration":
@@ -223,10 +227,6 @@ func (x *fastReflection_MsgCreateAuction) Clear(fd protoreflect.FieldDescriptor)
 		x.RevealFee = nil
 	case "cerc.auction.v1.MsgCreateAuction.minimum_bid":
 		x.MinimumBid = nil
-	case "cerc.auction.v1.MsgCreateAuction.signer":
-		x.Signer = ""
-	case "cerc.auction.v1.MsgCreateAuction.kind":
-		x.Kind = ""
 	case "cerc.auction.v1.MsgCreateAuction.max_price":
 		x.MaxPrice = nil
 	case "cerc.auction.v1.MsgCreateAuction.num_providers":
@@ -247,6 +247,12 @@ func (x *fastReflection_MsgCreateAuction) Clear(fd protoreflect.FieldDescriptor)
 // of the value; to obtain a mutable reference, use Mutable.
 func (x *fastReflection_MsgCreateAuction) Get(descriptor protoreflect.FieldDescriptor) protoreflect.Value {
 	switch descriptor.FullName() {
+	case "cerc.auction.v1.MsgCreateAuction.signer":
+		value := x.Signer
+		return protoreflect.ValueOfString(value)
+	case "cerc.auction.v1.MsgCreateAuction.kind":
+		value := x.Kind
+		return protoreflect.ValueOfString(value)
 	case "cerc.auction.v1.MsgCreateAuction.commits_duration":
 		value := x.CommitsDuration
 		return protoreflect.ValueOfMessage(value.ProtoReflect())
@@ -262,12 +268,6 @@ func (x *fastReflection_MsgCreateAuction) Get(descriptor protoreflect.FieldDescr
 	case "cerc.auction.v1.MsgCreateAuction.minimum_bid":
 		value := x.MinimumBid
 		return protoreflect.ValueOfMessage(value.ProtoReflect())
-	case "cerc.auction.v1.MsgCreateAuction.signer":
-		value := x.Signer
-		return protoreflect.ValueOfString(value)
-	case "cerc.auction.v1.MsgCreateAuction.kind":
-		value := x.Kind
-		return protoreflect.ValueOfString(value)
 	case "cerc.auction.v1.MsgCreateAuction.max_price":
 		value := x.MaxPrice
 		return protoreflect.ValueOfMessage(value.ProtoReflect())
@@ -294,6 +294,10 @@ func (x *fastReflection_MsgCreateAuction) Get(descriptor protoreflect.FieldDescr
 // Set is a mutating operation and unsafe for concurrent use.
 func (x *fastReflection_MsgCreateAuction) Set(fd protoreflect.FieldDescriptor, value protoreflect.Value) {
 	switch fd.FullName() {
+	case "cerc.auction.v1.MsgCreateAuction.signer":
+		x.Signer = value.Interface().(string)
+	case "cerc.auction.v1.MsgCreateAuction.kind":
+		x.Kind = value.Interface().(string)
 	case "cerc.auction.v1.MsgCreateAuction.commits_duration":
 		x.CommitsDuration = value.Message().Interface().(*durationpb.Duration)
 	case "cerc.auction.v1.MsgCreateAuction.reveals_duration":
@@ -304,10 +308,6 @@ func (x *fastReflection_MsgCreateAuction) Set(fd protoreflect.FieldDescriptor, v
 		x.RevealFee = value.Message().Interface().(*v1beta1.Coin)
 	case "cerc.auction.v1.MsgCreateAuction.minimum_bid":
 		x.MinimumBid = value.Message().Interface().(*v1beta1.Coin)
-	case "cerc.auction.v1.MsgCreateAuction.signer":
-		x.Signer = value.Interface().(string)
-	case "cerc.auction.v1.MsgCreateAuction.kind":
-		x.Kind = value.Interface().(string)
 	case "cerc.auction.v1.MsgCreateAuction.max_price":
 		x.MaxPrice = value.Message().Interface().(*v1beta1.Coin)
 	case "cerc.auction.v1.MsgCreateAuction.num_providers":
@@ -381,6 +381,10 @@ func (x *fastReflection_MsgCreateAuction) Mutable(fd protoreflect.FieldDescripto
 // For lists, maps, and messages, this returns a new, empty, mutable value.
 func (x *fastReflection_MsgCreateAuction) NewField(fd protoreflect.FieldDescriptor) protoreflect.Value {
 	switch fd.FullName() {
+	case "cerc.auction.v1.MsgCreateAuction.signer":
+		return protoreflect.ValueOfString("")
+	case "cerc.auction.v1.MsgCreateAuction.kind":
+		return protoreflect.ValueOfString("")
 	case "cerc.auction.v1.MsgCreateAuction.commits_duration":
 		m := new(durationpb.Duration)
 		return protoreflect.ValueOfMessage(m.ProtoReflect())
@@ -396,10 +400,6 @@ func (x *fastReflection_MsgCreateAuction) NewField(fd protoreflect.FieldDescript
 	case "cerc.auction.v1.MsgCreateAuction.minimum_bid":
 		m := new(v1beta1.Coin)
 		return protoreflect.ValueOfMessage(m.ProtoReflect())
-	case "cerc.auction.v1.MsgCreateAuction.signer":
-		return protoreflect.ValueOfString("")
-	case "cerc.auction.v1.MsgCreateAuction.kind":
-		return protoreflect.ValueOfString("")
 	case "cerc.auction.v1.MsgCreateAuction.max_price":
 		m := new(v1beta1.Coin)
 		return protoreflect.ValueOfMessage(m.ProtoReflect())
@@ -474,6 +474,14 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 		var n int
 		var l int
 		_ = l
+		l = len(x.Signer)
+		if l > 0 {
+			n += 1 + l + runtime.Sov(uint64(l))
+		}
+		l = len(x.Kind)
+		if l > 0 {
+			n += 1 + l + runtime.Sov(uint64(l))
+		}
 		if x.CommitsDuration != nil {
 			l = options.Size(x.CommitsDuration)
 			n += 1 + l + runtime.Sov(uint64(l))
@@ -494,14 +502,6 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 			l = options.Size(x.MinimumBid)
 			n += 1 + l + runtime.Sov(uint64(l))
 		}
-		l = len(x.Signer)
-		if l > 0 {
-			n += 1 + l + runtime.Sov(uint64(l))
-		}
-		l = len(x.Kind)
-		if l > 0 {
-			n += 1 + l + runtime.Sov(uint64(l))
-		}
 		if x.MaxPrice != nil {
 			l = options.Size(x.MaxPrice)
 			n += 1 + l + runtime.Sov(uint64(l))
@@ -557,20 +557,6 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 			i--
 			dAtA[i] = 0x42
 		}
-		if len(x.Kind) > 0 {
-			i -= len(x.Kind)
-			copy(dAtA[i:], x.Kind)
-			i = runtime.EncodeVarint(dAtA, i, uint64(len(x.Kind)))
-			i--
-			dAtA[i] = 0x3a
-		}
-		if len(x.Signer) > 0 {
-			i -= len(x.Signer)
-			copy(dAtA[i:], x.Signer)
-			i = runtime.EncodeVarint(dAtA, i, uint64(len(x.Signer)))
-			i--
-			dAtA[i] = 0x32
-		}
 		if x.MinimumBid != nil {
 			encoded, err := options.Marshal(x.MinimumBid)
 			if err != nil {
@@ -583,7 +569,7 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 			copy(dAtA[i:], encoded)
 			i = runtime.EncodeVarint(dAtA, i, uint64(len(encoded)))
 			i--
-			dAtA[i] = 0x2a
+			dAtA[i] = 0x3a
 		}
 		if x.RevealFee != nil {
 			encoded, err := options.Marshal(x.RevealFee)
@@ -597,7 +583,7 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 			copy(dAtA[i:], encoded)
 			i = runtime.EncodeVarint(dAtA, i, uint64(len(encoded)))
 			i--
-			dAtA[i] = 0x22
+			dAtA[i] = 0x32
 		}
 		if x.CommitFee != nil {
 			encoded, err := options.Marshal(x.CommitFee)
@@ -611,7 +597,7 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 			copy(dAtA[i:], encoded)
 			i = runtime.EncodeVarint(dAtA, i, uint64(len(encoded)))
 			i--
-			dAtA[i] = 0x1a
+			dAtA[i] = 0x2a
 		}
 		if x.RevealsDuration != nil {
 			encoded, err := options.Marshal(x.RevealsDuration)
@@ -625,7 +611,7 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 			copy(dAtA[i:], encoded)
 			i = runtime.EncodeVarint(dAtA, i, uint64(len(encoded)))
 			i--
-			dAtA[i] = 0x12
+			dAtA[i] = 0x22
 		}
 		if x.CommitsDuration != nil {
 			encoded, err := options.Marshal(x.CommitsDuration)
@@ -639,6 +625,20 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 			copy(dAtA[i:], encoded)
 			i = runtime.EncodeVarint(dAtA, i, uint64(len(encoded)))
 			i--
+			dAtA[i] = 0x1a
+		}
+		if len(x.Kind) > 0 {
+			i -= len(x.Kind)
+			copy(dAtA[i:], x.Kind)
+			i = runtime.EncodeVarint(dAtA, i, uint64(len(x.Kind)))
+			i--
+			dAtA[i] = 0x12
+		}
+		if len(x.Signer) > 0 {
+			i -= len(x.Signer)
+			copy(dAtA[i:], x.Signer)
+			i = runtime.EncodeVarint(dAtA, i, uint64(len(x.Signer)))
+			i--
 			dAtA[i] = 0xa
 		}
 		if input.Buf != nil {
@@ -691,6 +691,70 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 			}
 			switch fieldNum {
 			case 1:
+				if wireType != 2 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field Signer", wireType)
+				}
+				var stringLen uint64
+				for shift := uint(0); ; shift += 7 {
+					if shift >= 64 {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrIntOverflow
+					}
+					if iNdEx >= l {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+					}
+					b := dAtA[iNdEx]
+					iNdEx++
+					stringLen |= uint64(b&0x7F) << shift
+					if b < 0x80 {
+						break
+					}
+				}
+				intStringLen := int(stringLen)
+				if intStringLen < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				postIndex := iNdEx + intStringLen
+				if postIndex < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				if postIndex > l {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+				}
+				x.Signer = string(dAtA[iNdEx:postIndex])
+				iNdEx = postIndex
+			case 2:
+				if wireType != 2 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field Kind", wireType)
+				}
+				var stringLen uint64
+				for shift := uint(0); ; shift += 7 {
+					if shift >= 64 {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrIntOverflow
+					}
+					if iNdEx >= l {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+					}
+					b := dAtA[iNdEx]
+					iNdEx++
+					stringLen |= uint64(b&0x7F) << shift
+					if b < 0x80 {
+						break
+					}
+				}
+				intStringLen := int(stringLen)
+				if intStringLen < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				postIndex := iNdEx + intStringLen
+				if postIndex < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				if postIndex > l {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+				}
+				x.Kind = string(dAtA[iNdEx:postIndex])
+				iNdEx = postIndex
+			case 3:
 				if wireType != 2 {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field CommitsDuration", wireType)
 				}
@@ -726,7 +790,7 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, err
 				}
 				iNdEx = postIndex
-			case 2:
+			case 4:
 				if wireType != 2 {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field RevealsDuration", wireType)
 				}
@@ -762,7 +826,7 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, err
 				}
 				iNdEx = postIndex
-			case 3:
+			case 5:
 				if wireType != 2 {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field CommitFee", wireType)
 				}
@@ -798,7 +862,7 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, err
 				}
 				iNdEx = postIndex
-			case 4:
+			case 6:
 				if wireType != 2 {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field RevealFee", wireType)
 				}
@@ -834,7 +898,7 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, err
 				}
 				iNdEx = postIndex
-			case 5:
+			case 7:
 				if wireType != 2 {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field MinimumBid", wireType)
 				}
@@ -870,70 +934,6 @@ func (x *fastReflection_MsgCreateAuction) ProtoMethods() *protoiface.Methods {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, err
 				}
 				iNdEx = postIndex
-			case 6:
-				if wireType != 2 {
-					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field Signer", wireType)
-				}
-				var stringLen uint64
-				for shift := uint(0); ; shift += 7 {
-					if shift >= 64 {
-						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrIntOverflow
-					}
-					if iNdEx >= l {
-						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
-					}
-					b := dAtA[iNdEx]
-					iNdEx++
-					stringLen |= uint64(b&0x7F) << shift
-					if b < 0x80 {
-						break
-					}
-				}
-				intStringLen := int(stringLen)
-				if intStringLen < 0 {
-					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
-				}
-				postIndex := iNdEx + intStringLen
-				if postIndex < 0 {
-					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
-				}
-				if postIndex > l {
-					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
-				}
-				x.Signer = string(dAtA[iNdEx:postIndex])
-				iNdEx = postIndex
-			case 7:
-				if wireType != 2 {
-					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field Kind", wireType)
-				}
-				var stringLen uint64
-				for shift := uint(0); ; shift += 7 {
-					if shift >= 64 {
-						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrIntOverflow
-					}
-					if iNdEx >= l {
-						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
-					}
-					b := dAtA[iNdEx]
-					iNdEx++
-					stringLen |= uint64(b&0x7F) << shift
-					if b < 0x80 {
-						break
-					}
-				}
-				intStringLen := int(stringLen)
-				if intStringLen < 0 {
-					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
-				}
-				postIndex := iNdEx + intStringLen
-				if postIndex < 0 {
-					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
-				}
-				if postIndex > l {
-					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
-				}
-				x.Kind = string(dAtA[iNdEx:postIndex])
-				iNdEx = postIndex
 			case 8:
 				if wireType != 2 {
 					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field MaxPrice", wireType)
@@ -4299,23 +4299,26 @@ type MsgCreateAuction struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// Duration of the commits phase in seconds
-	CommitsDuration *durationpb.Duration `protobuf:"bytes,1,opt,name=commits_duration,json=commitsDuration,proto3" json:"commits_duration,omitempty"`
-	// Duration of the reveals phase in seconds
-	RevealsDuration *durationpb.Duration `protobuf:"bytes,2,opt,name=reveals_duration,json=revealsDuration,proto3" json:"reveals_duration,omitempty"`
-	// Commit fees
-	CommitFee *v1beta1.Coin `protobuf:"bytes,3,opt,name=commit_fee,json=commitFee,proto3" json:"commit_fee,omitempty"`
-	// Reveal fees
-	RevealFee *v1beta1.Coin `protobuf:"bytes,4,opt,name=reveal_fee,json=revealFee,proto3" json:"reveal_fee,omitempty"`
-	// Minimum acceptable bid amount
-	MinimumBid *v1beta1.Coin `protobuf:"bytes,5,opt,name=minimum_bid,json=minimumBid,proto3" json:"minimum_bid,omitempty"`
 	// Address of the signer
-	Signer string `protobuf:"bytes,6,opt,name=signer,proto3" json:"signer,omitempty"`
+	Signer string `protobuf:"bytes,1,opt,name=signer,proto3" json:"signer,omitempty"`
-	// Auction's kind (vickrey | provider)
+	// Auction kind (vickrey | provider)
-	Kind string `protobuf:"bytes,7,opt,name=kind,proto3" json:"kind,omitempty"`
+	Kind string `protobuf:"bytes,2,opt,name=kind,proto3" json:"kind,omitempty"`
-	// Maximum acceptable bid amount (for service provider auctions)
+	// Duration of the commits phase in seconds
+	CommitsDuration *durationpb.Duration `protobuf:"bytes,3,opt,name=commits_duration,json=commitsDuration,proto3" json:"commits_duration,omitempty"`
+	// Duration of the reveals phase in seconds
+	RevealsDuration *durationpb.Duration `protobuf:"bytes,4,opt,name=reveals_duration,json=revealsDuration,proto3" json:"reveals_duration,omitempty"`
+	// Commit fees
+	CommitFee *v1beta1.Coin `protobuf:"bytes,5,opt,name=commit_fee,json=commitFee,proto3" json:"commit_fee,omitempty"`
+	// Reveal fees
+	RevealFee *v1beta1.Coin `protobuf:"bytes,6,opt,name=reveal_fee,json=revealFee,proto3" json:"reveal_fee,omitempty"`
+	// Minimum acceptable bid amount
+	// Only applicable in vickrey auctions
+	MinimumBid *v1beta1.Coin `protobuf:"bytes,7,opt,name=minimum_bid,json=minimumBid,proto3" json:"minimum_bid,omitempty"`
+	// Maximum acceptable bid amount
+	// Only applicable in provider auctions
 	MaxPrice *v1beta1.Coin `protobuf:"bytes,8,opt,name=max_price,json=maxPrice,proto3" json:"max_price,omitempty"`
-	// Number of providers to be selected
+	// Number of desired providers (num of auction winners)
+	// Only applicable in provider auctions
 	NumProviders int32 `protobuf:"varint,9,opt,name=num_providers,json=numProviders,proto3" json:"num_providers,omitempty"`
 }
 
@@ -4339,6 +4342,20 @@ func (*MsgCreateAuction) Descriptor() ([]byte, []int) {
 	return file_cerc_auction_v1_tx_proto_rawDescGZIP(), []int{0}
 }
 
+func (x *MsgCreateAuction) GetSigner() string {
+	if x != nil {
+		return x.Signer
+	}
+	return ""
+}
+
+func (x *MsgCreateAuction) GetKind() string {
+	if x != nil {
+		return x.Kind
+	}
+	return ""
+}
+
 func (x *MsgCreateAuction) GetCommitsDuration() *durationpb.Duration {
 	if x != nil {
 		return x.CommitsDuration
@@ -4374,20 +4391,6 @@ func (x *MsgCreateAuction) GetMinimumBid() *v1beta1.Coin {
 	return nil
 }
 
-func (x *MsgCreateAuction) GetSigner() string {
-	if x != nil {
-		return x.Signer
-	}
-	return ""
-}
-
-func (x *MsgCreateAuction) GetKind() string {
-	if x != nil {
-		return x.Kind
-	}
-	return ""
-}
-
 func (x *MsgCreateAuction) GetMaxPrice() *v1beta1.Coin {
 	if x != nil {
 		return x.MaxPrice
@@ -4719,50 +4722,50 @@ var file_cerc_auction_v1_tx_proto_rawDesc = []byte{
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+	0x76, 0x65, 0x61, 0x6c, 0x46, 0x65, 0x65, 0x12, 0x69, 0x0a, 0x0b, 0x6d, 0x69, 0x6e, 0x69, 0x6d,
-	0x65, 0x72, 0x18, 0x06, 0x20, 0x01, 0x28, 0x09, 0x42, 0x1f, 0xf2, 0xde, 0x1f, 0x1b, 0x6a, 0x73,
+	0x75, 0x6d, 0x5f, 0x62, 0x69, 0x64, 0x18, 0x07, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x63,
-	0x6f, 0x6e, 0x3a, 0x22, 0x73, 0x69, 0x67, 0x6e, 0x65, 0x72, 0x22, 0x20, 0x79, 0x61, 0x6d, 0x6c,
+	0x6f, 0x73, 0x6d, 0x6f, 0x73, 0x2e, 0x62, 0x61, 0x73, 0x65, 0x2e, 0x76, 0x31, 0x62, 0x65, 0x74,
-	0x3a, 0x22, 0x73, 0x69, 0x67, 0x6e, 0x65, 0x72, 0x22, 0x52, 0x06, 0x73, 0x69, 0x67, 0x6e, 0x65,
+	0x61, 0x31, 0x2e, 0x43, 0x6f, 0x69, 0x6e, 0x42, 0x2d, 0xc8, 0xde, 0x1f, 0x00, 0xf2, 0xde, 0x1f,
-	0x72, 0x12, 0x2f, 0x0a, 0x04, 0x6b, 0x69, 0x6e, 0x64, 0x18, 0x07, 0x20, 0x01, 0x28, 0x09, 0x42,
+	0x25, 0x6a, 0x73, 0x6f, 0x6e, 0x3a, 0x22, 0x6d, 0x69, 0x6e, 0x69, 0x6d, 0x75, 0x6d, 0x5f, 0x62,
-	0x1b, 0xf2, 0xde, 0x1f, 0x17, 0x6a, 0x73, 0x6f, 0x6e, 0x3a, 0x22, 0x6b, 0x69, 0x6e, 0x64, 0x22,
+	0x69, 0x64, 0x22, 0x20, 0x79, 0x61, 0x6d, 0x6c, 0x3a, 0x22, 0x6d, 0x69, 0x6e, 0x69, 0x6d, 0x75,
-	0x20, 0x79, 0x61, 0x6d, 0x6c, 0x3a, 0x22, 0x6b, 0x69, 0x6e, 0x64, 0x22, 0x52, 0x04, 0x6b, 0x69,
+	0x6d, 0x5f, 0x62, 0x69, 0x64, 0x22, 0x52, 0x0a, 0x6d, 0x69, 0x6e, 0x69, 0x6d, 0x75, 0x6d, 0x42,
-	0x6e, 0x64, 0x12, 0x61, 0x0a, 0x09, 0x6d, 0x61, 0x78, 0x5f, 0x70, 0x72, 0x69, 0x63, 0x65, 0x18,
+	0x69, 0x64, 0x12, 0x61, 0x0a, 0x09, 0x6d, 0x61, 0x78, 0x5f, 0x70, 0x72, 0x69, 0x63, 0x65, 0x18,
 	0x08, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x63, 0x6f, 0x73, 0x6d, 0x6f, 0x73, 0x2e, 0x62,
 	0x61, 0x73, 0x65, 0x2e, 0x76, 0x31, 0x62, 0x65, 0x74, 0x61, 0x31, 0x2e, 0x43, 0x6f, 0x69, 0x6e,
 	0x42, 0x29, 0xc8, 0xde, 0x1f, 0x00, 0xf2, 0xde, 0x1f, 0x21, 0x6a, 0x73, 0x6f, 0x6e, 0x3a, 0x22,

proto/cerc/auction/v1/auction.proto

@@ -40,7 +40,8 @@ message Params {
     (gogoproto.moretags) = "json:\"reveal_fee\" yaml:\"reveal_fee\""
   ];
 
-  // Minimum acceptable bid amount (for vickrey auctions)
+  // Minimum acceptable bid amount
+  // Only applicable in vickrey auctions
   cosmos.base.v1beta1.Coin minimum_bid = 5 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"minimum_bid\" yaml:\"minimum_bid\""
@@ -53,7 +54,7 @@ message Auction {
 
   string id = 1;
 
-  // Auction's kind (vickrey | provider)
+  // Auction kind (vickrey | provider)
   string kind = 2 [ (gogoproto.moretags) = "json:\"kind\" yaml:\"kind\"" ];
 
   string status = 3;
@@ -93,34 +94,42 @@ message Auction {
     (gogoproto.moretags) = "json:\"reveal_fee\" yaml:\"reveal_fee\""
   ];
 
-  // Minimum acceptable bid amount for a valid commit (for vickrey auctions)
+  // Minimum acceptable bid amount for a valid commit
+  // Only applicable in vickrey auctions
   cosmos.base.v1beta1.Coin minimum_bid = 10 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"minimum_bid\" yaml:\"minimum_bid\""
   ];
 
-  // Winner's address for Vickrey auctions, can be multiple for provider auctions
+  // Addresses of the winners
+  // (single winner for vickrey auction)
+  // (multiple winners for provider auctions)
   repeated string winner_addresses = 11;
 
-  // Winning bids, i.e., the best bids
+  // Winning bids, i.e. the best bids
   repeated cosmos.base.v1beta1.Coin winning_bids = 12 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"winning_bids\" yaml:\"winning_bids\""
   ];
 
-  // Amount the winner pays (vickrey auction) or is paid (provider auction)
+  // Auction winning price
+  // vickrey auction: second highest bid, paid by the winner
+  // provider auction: higest bid amongst winning_bids, paid by auction creator
+  // to each winner
   cosmos.base.v1beta1.Coin winning_price = 13 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"winning_price\" yaml:\"winning_price\""
   ];
 
-  // Maximum acceptable bid amount (for provider auctions)
+  // Maximum acceptable bid amount for a valid commit
+  // Only applicable in provider auctions
   cosmos.base.v1beta1.Coin max_price = 14 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"max_price\" yaml:\"max_price\""
   ];
 
-  // Number of providers to be selected
+  // Number of desired providers (num of auction winners)
+  // Only applicable in provider auctions
   int32 num_providers = 15;
 }
 

proto/cerc/auction/v1/tx.proto

@@ -41,52 +41,55 @@ message MsgCreateAuction {
   option (gogoproto.goproto_getters) = false;
   option (cosmos.msg.v1.signer) = "signer";
 
+  // Address of the signer
+  string signer = 1
+      [ (gogoproto.moretags) = "json:\"signer\" yaml:\"signer\"" ];
+
+  // Auction kind (vickrey | provider)
+  string kind = 2 [ (gogoproto.moretags) = "json:\"kind\" yaml:\"kind\"" ];
+
   // Duration of the commits phase in seconds
-  google.protobuf.Duration commits_duration = 1 [
+  google.protobuf.Duration commits_duration = 3 [
     (gogoproto.nullable) = false,
     (gogoproto.stdduration) = true,
     (gogoproto.moretags) = "json:\"commits_duration\" yaml:\"commits_duration\""
   ];
 
   // Duration of the reveals phase in seconds
-  google.protobuf.Duration reveals_duration = 2 [
+  google.protobuf.Duration reveals_duration = 4 [
     (gogoproto.nullable) = false,
     (gogoproto.stdduration) = true,
     (gogoproto.moretags) = "json:\"reveals_duration\" yaml:\"reveals_duration\""
   ];
 
   // Commit fees
-  cosmos.base.v1beta1.Coin commit_fee = 3 [
+  cosmos.base.v1beta1.Coin commit_fee = 5 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"commit_fee\" yaml:\"commit_fee\""
   ];
 
   // Reveal fees
-  cosmos.base.v1beta1.Coin reveal_fee = 4 [
+  cosmos.base.v1beta1.Coin reveal_fee = 6 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"reveal_fee\" yaml:\"reveal_fee\""
   ];
 
-  // Minimum acceptable bid amount (for vickrey auctions)
+  // Minimum acceptable bid amount
-  cosmos.base.v1beta1.Coin minimum_bid = 5 [
+  // Only applicable in vickrey auctions
+  cosmos.base.v1beta1.Coin minimum_bid = 7 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"minimum_bid\" yaml:\"minimum_bid\""
   ];
 
-  // Address of the signer
+  // Maximum acceptable bid amount
-  string signer = 6
+  // Only applicable in provider auctions
-      [ (gogoproto.moretags) = "json:\"signer\" yaml:\"signer\"" ];
-
-  // Auction's kind (vickrey | provider)
-  string kind = 7 [ (gogoproto.moretags) = "json:\"kind\" yaml:\"kind\"" ];
-
-  // Maximum acceptable bid amount (for provider auctions)
   cosmos.base.v1beta1.Coin max_price = 8 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"max_price\" yaml:\"max_price\""
   ];
 
-  // Number of providers to be selected
+  // Number of desired providers (num of auction winners)
+  // Only applicable in provider auctions
   int32 num_providers = 9;
 }
 

x/auction/auction.pb.go

@@ -40,6 +40,7 @@ type Params struct {
 	// Reveal fees
 	RevealFee types.Coin `protobuf:"bytes,4,opt,name=reveal_fee,json=revealFee,proto3" json:"reveal_fee" json:"reveal_fee" yaml:"reveal_fee"`
 	// Minimum acceptable bid amount
+	// Only applicable in vickrey auctions
 	MinimumBid types.Coin `protobuf:"bytes,5,opt,name=minimum_bid,json=minimumBid,proto3" json:"minimum_bid" json:"minimum_bid" yaml:"minimum_bid"`
 }
 
@@ -113,7 +114,7 @@ func (m *Params) GetMinimumBid() types.Coin {
 // Auction represents a sealed-bid on-chain auction
 type Auction struct {
 	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-	// Auction's kind (vickrey | provider)
+	// Auction kind (vickrey | provider)
 	Kind   string `protobuf:"bytes,2,opt,name=kind,proto3" json:"kind,omitempty" json:"kind" yaml:"kind"`
 	Status string `protobuf:"bytes,3,opt,name=status,proto3" json:"status,omitempty"`
 	// Address of the creator of the auction
@@ -129,19 +130,24 @@ type Auction struct {
 	CommitFee types.Coin `protobuf:"bytes,8,opt,name=commit_fee,json=commitFee,proto3" json:"commit_fee" json:"commit_fee" yaml:"commit_fee"`
 	RevealFee types.Coin `protobuf:"bytes,9,opt,name=reveal_fee,json=revealFee,proto3" json:"reveal_fee" json:"reveal_fee" yaml:"reveal_fee"`
 	// Minimum acceptable bid amount for a valid commit
+	// Only applicable in vickrey auctions
 	MinimumBid types.Coin `protobuf:"bytes,10,opt,name=minimum_bid,json=minimumBid,proto3" json:"minimum_bid" json:"minimum_bid" yaml:"minimum_bid"`
-	// Addresses of the winners (one for vickrey auctions and can be multiple for
+	// Addresses of the winners
-	// provider auctions)
+	// (single winner for vickrey auction)
+	// (multiple winners for provider auctions)
 	WinnerAddresses []string `protobuf:"bytes,11,rep,name=winner_addresses,json=winnerAddresses,proto3" json:"winner_addresses,omitempty"`
-	// Winning bids, i.e., the best bids
+	// Winning bids, i.e. the best bids
 	WinningBids []types.Coin `protobuf:"bytes,12,rep,name=winning_bids,json=winningBids,proto3" json:"winning_bids" json:"winning_bids" yaml:"winning_bids"`
-	// Amount the winner pays (vickrey auction) or gets paid (provider auction),
+	// Auction winning price
-	// i.e. the second best bid
+	// vickrey auction: second highest bid, paid by the winner
+	// provider auction: higest bid amongst winning_bids, paid by auction creator
+	// to each winner
 	WinningPrice types.Coin `protobuf:"bytes,13,opt,name=winning_price,json=winningPrice,proto3" json:"winning_price" json:"winning_price" yaml:"winning_price"`
-	// Maximum acceptable bid amount for a valid commit for service provider
+	// Maximum acceptable bid amount for a valid commit
-	// auctions
+	// Only applicable in provider auctions
 	MaxPrice types.Coin `protobuf:"bytes,14,opt,name=max_price,json=maxPrice,proto3" json:"max_price" json:"max_price" yaml:"max_price"`
-	// Number of providers to be selected
+	// Number of desired providers (num of auction winners)
+	// Only applicable in provider auctions
 	NumProviders int32 `protobuf:"varint,15,opt,name=num_providers,json=numProviders,proto3" json:"num_providers,omitempty"`
 }
 

x/auction/keeper/keeper.go

@@ -353,6 +353,7 @@ func (k Keeper) CreateAuction(ctx sdk.Context, msg auctiontypes.MsgCreateAuction
 
 	auction := auctiontypes.Auction{
 		Id:             auctionId,
+		Kind:           msg.Kind,
 		Status:         auctiontypes.AuctionStatusCommitPhase,
 		OwnerAddress:   signerAddress.String(),
 		CreateTime:     now,
@@ -362,7 +363,6 @@ func (k Keeper) CreateAuction(ctx sdk.Context, msg auctiontypes.MsgCreateAuction
 		RevealFee:      msg.RevealFee,
 		MinimumBid:     msg.MinimumBid,
 		MaxPrice:       msg.MaxPrice,
-		Kind:           msg.Kind,
 		NumProviders:   msg.NumProviders,
 	}
 
@@ -535,8 +535,8 @@ func (k Keeper) RevealBid(ctx sdk.Context, msg auctiontypes.MsgRevealBid) (*auct
 		return nil, errorsmod.Wrap(sdkerrors.ErrInvalidRequest, "Bid is lower than minimum bid.")
 	}
 
-	if auction.Kind == auctiontypes.AuctionKindProvider && bidAmount.IsGTE(auction.MaxPrice) {
+	if auction.Kind == auctiontypes.AuctionKindProvider && auction.MaxPrice.IsLT(bidAmount) {
-		return nil, errorsmod.Wrap(sdkerrors.ErrInvalidRequest, "Bid is higher than maximum price.")
+		return nil, errorsmod.Wrap(sdkerrors.ErrInvalidRequest, "Bid is higher than max price.")
 	}
 
 	// Lock bid amount.
@@ -714,6 +714,7 @@ func (k Keeper) pickAuctionWinner(ctx sdk.Context, auction *auctiontypes.Auction
 	if highestBid != nil {
 		auction.WinningBids = []sdk.Coin{highestBid.BidAmount}
 		auction.WinnerAddresses = []string{highestBid.BidderAddress}
+
 		// Winner pays 2nd price, if a 2nd price exists.
 		auction.WinningPrice = highestBid.BidAmount
 		if secondHighestBid != nil {
@@ -721,7 +722,7 @@ func (k Keeper) pickAuctionWinner(ctx sdk.Context, auction *auctiontypes.Auction
 		}
 		k.Logger(ctx).Info(fmt.Sprintf("Auction %s winner %s.", auction.Id, auction.WinnerAddresses[0]))
 		k.Logger(ctx).Info(fmt.Sprintf("Auction %s winner bid %s.", auction.Id, auction.WinningBids[0].String()))
-		k.Logger(ctx).Info(fmt.Sprintf("Auction %s winner price %s.", auction.Id, auction.WinningPrice.String()))
+		k.Logger(ctx).Info(fmt.Sprintf("Auction %s winning price %s.", auction.Id, auction.WinningPrice.String()))
 	} else {
 		k.Logger(ctx).Info(fmt.Sprintf("Auction %s has no valid revealed bids (no winner).", auction.Id))
 	}
@@ -755,7 +756,7 @@ func (k Keeper) pickAuctionWinner(ctx sdk.Context, auction *auctiontypes.Auction
 	}
 
 	// Process winner account (if nobody bids, there won't be a winner).
-	if len(auction.WinnerAddresses) == 1 {
+	if len(auction.WinnerAddresses) != 0 {
 		winnerAddress, err := sdk.AccAddressFromBech32(auction.WinnerAddresses[0])
 		if err != nil {
 			k.Logger(ctx).Error(fmt.Sprintf("Invalid winner address. %v", err))
@@ -831,9 +832,10 @@ func (k Keeper) pickProviderAuctionWinners(ctx sdk.Context, auction *auctiontype
 		return 0
 	})
 
+	// Take best min(len(revealedBids), auction.NumProviders) bids
 	numWinners := int(auction.NumProviders)
 	if len(revealedBids) < numWinners {
-		numWinners = (len(revealedBids))
+		numWinners = len(revealedBids)
 	}
 	winnerBids := revealedBids[:numWinners]
 
@@ -846,6 +848,7 @@ func (k Keeper) pickProviderAuctionWinners(ctx sdk.Context, auction *auctiontype
 			winnerAddresses[i] = bid.BidderAddress
 			winningBids[i] = bid.BidAmount
 		}
+
 		auction.WinnerAddresses = winnerAddresses
 		auction.WinningBids = winningBids
 
@@ -855,7 +858,7 @@ func (k Keeper) pickProviderAuctionWinners(ctx sdk.Context, auction *auctiontype
 		for _, bid := range winnerBids {
 			k.Logger(ctx).Info(fmt.Sprintf("Auction %s winner address: %s, bid amount: %s.", auction.Id, bid.BidderAddress, bid.BidAmount.String()))
 		}
-		k.Logger(ctx).Info(fmt.Sprintf("Auction %s winner price %s.", auction.Id, auction.WinningPrice.String()))
+		k.Logger(ctx).Info(fmt.Sprintf("Auction %s winning price %s.", auction.Id, auction.WinningPrice.String()))
 	} else {
 		k.Logger(ctx).Info(fmt.Sprintf("Auction %s has no valid revealed bids (no winner).", auction.Id))
 	}
@@ -882,6 +885,7 @@ func (k Keeper) pickProviderAuctionWinners(ctx sdk.Context, auction *auctiontype
 	}
 
 	// Process winner accounts (if nobody bids, there won't be a winner).
+	totalLockedAmount := auction.MaxPrice.Amount.Mul(math.NewInt(int64(auction.NumProviders)))
 	if len(winnerBids) > 0 {
 		for _, bid := range winnerBids {
 			winnerAddress, err := sdk.AccAddressFromBech32(bid.BidderAddress)
@@ -896,32 +900,29 @@ func (k Keeper) pickProviderAuctionWinners(ctx sdk.Context, auction *auctiontype
 				k.Logger(ctx).Error(fmt.Sprintf("Auction error sending funds to winner: %v", sdkErr))
 				panic(sdkErr)
 			}
-
 		}
-		// Send back extra amount to auction creator
-		totalLockedAmount := auction.MaxPrice.Amount.Mul(math.NewInt(int64(auction.NumProviders)))
-		totalAmountPaid := auction.WinningPrice.Amount.Mul(math.NewInt(int64(auction.NumProviders)))
 
-		extraAmountCoin := sdk.NewCoin(auction.MaxPrice.Denom, totalLockedAmount.Sub(totalAmountPaid))
+		// Send back extra amount to auction creator
+		totalAmountPaid := auction.WinningPrice.Amount.Mul(math.NewInt(int64(len(winnerBids))))
+		extraAmount := sdk.NewCoin(auction.MaxPrice.Denom, totalLockedAmount.Sub(totalAmountPaid))
 
 		sdkErr := k.bankKeeper.SendCoinsFromModuleToAccount(
 			ctx,
 			auctiontypes.ModuleName,
 			sdk.AccAddress(auction.OwnerAddress),
-			sdk.NewCoins(extraAmountCoin),
+			sdk.NewCoins(extraAmount),
 		)
 		if sdkErr != nil {
 			k.Logger(ctx).Error(fmt.Sprintf("Auction error returning extra locked amount: %v", sdkErr))
 			panic(sdkErr)
 		}
 	} else {
-		totalLockedAmount := sdk.NewCoin(auction.MaxPrice.Denom, auction.MaxPrice.Amount.Mul(math.NewInt(int64(auction.NumProviders))))
+		// Return all locked amount in case of no winners
-
 		sdkErr := k.bankKeeper.SendCoinsFromModuleToAccount(
 			ctx,
 			auctiontypes.ModuleName,
 			sdk.AccAddress(auction.OwnerAddress),
-			sdk.NewCoins(totalLockedAmount))
+			sdk.NewCoins(sdk.NewCoin(auction.MaxPrice.Denom, totalLockedAmount)))
 		if sdkErr != nil {
 			k.Logger(ctx).Error(fmt.Sprintf("Auction error returning bid amount: %v", sdkErr))
 			panic(sdkErr)

x/auction/tx.pb.go

@@ -38,23 +38,26 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
 
 // MsgCreateAuction defines a create auction message
 type MsgCreateAuction struct {
-	// Duration of the commits phase in seconds
-	CommitsDuration time.Duration `protobuf:"bytes,1,opt,name=commits_duration,json=commitsDuration,proto3,stdduration" json:"commits_duration" json:"commits_duration" yaml:"commits_duration"`
-	// Duration of the reveals phase in seconds
-	RevealsDuration time.Duration `protobuf:"bytes,2,opt,name=reveals_duration,json=revealsDuration,proto3,stdduration" json:"reveals_duration" json:"reveals_duration" yaml:"reveals_duration"`
-	// Commit fees
-	CommitFee types.Coin `protobuf:"bytes,3,opt,name=commit_fee,json=commitFee,proto3" json:"commit_fee" json:"commit_fee" yaml:"commit_fee"`
-	// Reveal fees
-	RevealFee types.Coin `protobuf:"bytes,4,opt,name=reveal_fee,json=revealFee,proto3" json:"reveal_fee" json:"reveal_fee" yaml:"reveal_fee"`
-	// Minimum acceptable bid amount
-	MinimumBid types.Coin `protobuf:"bytes,5,opt,name=minimum_bid,json=minimumBid,proto3" json:"minimum_bid" json:"minimum_bid" yaml:"minimum_bid"`
 	// Address of the signer
-	Signer string `protobuf:"bytes,6,opt,name=signer,proto3" json:"signer,omitempty" json:"signer" yaml:"signer"`
+	Signer string `protobuf:"bytes,1,opt,name=signer,proto3" json:"signer,omitempty" json:"signer" yaml:"signer"`
-	// Auction's kind (vickrey | provider)
+	// Auction kind (vickrey | provider)
-	Kind string `protobuf:"bytes,7,opt,name=kind,proto3" json:"kind,omitempty" json:"kind" yaml:"kind"`
+	Kind string `protobuf:"bytes,2,opt,name=kind,proto3" json:"kind,omitempty" json:"kind" yaml:"kind"`
-	// Maximum acceptable bid amount (for service provider auctions)
+	// Duration of the commits phase in seconds
+	CommitsDuration time.Duration `protobuf:"bytes,3,opt,name=commits_duration,json=commitsDuration,proto3,stdduration" json:"commits_duration" json:"commits_duration" yaml:"commits_duration"`
+	// Duration of the reveals phase in seconds
+	RevealsDuration time.Duration `protobuf:"bytes,4,opt,name=reveals_duration,json=revealsDuration,proto3,stdduration" json:"reveals_duration" json:"reveals_duration" yaml:"reveals_duration"`
+	// Commit fees
+	CommitFee types.Coin `protobuf:"bytes,5,opt,name=commit_fee,json=commitFee,proto3" json:"commit_fee" json:"commit_fee" yaml:"commit_fee"`
+	// Reveal fees
+	RevealFee types.Coin `protobuf:"bytes,6,opt,name=reveal_fee,json=revealFee,proto3" json:"reveal_fee" json:"reveal_fee" yaml:"reveal_fee"`
+	// Minimum acceptable bid amount
+	// Only applicable in vickrey auctions
+	MinimumBid types.Coin `protobuf:"bytes,7,opt,name=minimum_bid,json=minimumBid,proto3" json:"minimum_bid" json:"minimum_bid" yaml:"minimum_bid"`
+	// Maximum acceptable bid amount
+	// Only applicable in provider auctions
 	MaxPrice types.Coin `protobuf:"bytes,8,opt,name=max_price,json=maxPrice,proto3" json:"max_price" json:"max_price" yaml:"max_price"`
-	// Number of providers to be selected
+	// Number of desired providers (num of auction winners)
+	// Only applicable in provider auctions
 	NumProviders int32 `protobuf:"varint,9,opt,name=num_providers,json=numProviders,proto3" json:"num_providers,omitempty"`
 }
 
@@ -404,68 +407,68 @@ func init() {
 func init() { proto.RegisterFile("cerc/auction/v1/tx.proto", fileDescriptor_70947cda59e835fd) }
 
 var fileDescriptor_70947cda59e835fd = []byte{
-	// 964 bytes of a gzipped FileDescriptorProto
+	// 967 bytes of a gzipped FileDescriptorProto
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-	0x17, 0xcd, 0xca, 0x1f, 0x17, 0xcd, 0xca, 0xe3, 0xad, 0x98, 0xe6, 0x6e, 0x3f, 0xea, 0xb8, 0xe2,
+	0xb4, 0x2a, 0xaf, 0x2e, 0x5a, 0x95, 0xdf, 0x2e, 0x5a, 0x95, 0xc7, 0xdb, 0x31, 0xcd, 0xdd, 0x61,
-	0x6f, 0x15, 0xc9, 0xc2, 0x5d, 0xca, 0xbc, 0x53, 0x1c, 0xb2, 0x94, 0x86, 0x91, 0x77, 0xa6, 0x15,
+	0xd4, 0x73, 0xc5, 0x6f, 0x15, 0xc9, 0xc2, 0x3d, 0xca, 0xbc, 0x53, 0x1c, 0xb2, 0x94, 0x86, 0x91,
-	0x77, 0x6a, 0xf2, 0x9f, 0xc8, 0x07, 0xff, 0x07, 0x00, 0x00, 0xff, 0xff, 0x91, 0xdf, 0x04, 0x3d,
+	0x77, 0xa6, 0x2b, 0xee, 0xd5, 0xe4, 0xff, 0xc1, 0x7b, 0xff, 0x06, 0x00, 0x00, 0xff, 0xff, 0xd2,
-	0x40, 0x0a, 0x00, 0x00,
+	0x88, 0x14, 0x9a, 0x40, 0x0a, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -701,20 +704,6 @@ func (m *MsgCreateAuction) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	}
 	i--
 	dAtA[i] = 0x42
-	if len(m.Kind) > 0 {
-		i -= len(m.Kind)
-		copy(dAtA[i:], m.Kind)
-		i = encodeVarintTx(dAtA, i, uint64(len(m.Kind)))
-		i--
-		dAtA[i] = 0x3a
-	}
-	if len(m.Signer) > 0 {
-		i -= len(m.Signer)
-		copy(dAtA[i:], m.Signer)
-		i = encodeVarintTx(dAtA, i, uint64(len(m.Signer)))
-		i--
-		dAtA[i] = 0x32
-	}
 	{
 		size, err := m.MinimumBid.MarshalToSizedBuffer(dAtA[:i])
 		if err != nil {
@@ -724,7 +713,7 @@ func (m *MsgCreateAuction) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i = encodeVarintTx(dAtA, i, uint64(size))
 	}
 	i--
-	dAtA[i] = 0x2a
+	dAtA[i] = 0x3a
 	{
 		size, err := m.RevealFee.MarshalToSizedBuffer(dAtA[:i])
 		if err != nil {
@@ -734,7 +723,7 @@ func (m *MsgCreateAuction) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i = encodeVarintTx(dAtA, i, uint64(size))
 	}
 	i--
-	dAtA[i] = 0x22
+	dAtA[i] = 0x32
 	{
 		size, err := m.CommitFee.MarshalToSizedBuffer(dAtA[:i])
 		if err != nil {
@@ -744,7 +733,7 @@ func (m *MsgCreateAuction) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i = encodeVarintTx(dAtA, i, uint64(size))
 	}
 	i--
-	dAtA[i] = 0x1a
+	dAtA[i] = 0x2a
 	n5, err5 := github_com_cosmos_gogoproto_types.StdDurationMarshalTo(m.RevealsDuration, dAtA[i-github_com_cosmos_gogoproto_types.SizeOfStdDuration(m.RevealsDuration):])
 	if err5 != nil {
 		return 0, err5
@@ -752,7 +741,7 @@ func (m *MsgCreateAuction) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	i -= n5
 	i = encodeVarintTx(dAtA, i, uint64(n5))
 	i--
-	dAtA[i] = 0x12
+	dAtA[i] = 0x22
 	n6, err6 := github_com_cosmos_gogoproto_types.StdDurationMarshalTo(m.CommitsDuration, dAtA[i-github_com_cosmos_gogoproto_types.SizeOfStdDuration(m.CommitsDuration):])
 	if err6 != nil {
 		return 0, err6
@@ -760,7 +749,21 @@ func (m *MsgCreateAuction) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	i -= n6
 	i = encodeVarintTx(dAtA, i, uint64(n6))
 	i--
-	dAtA[i] = 0xa
+	dAtA[i] = 0x1a
+	if len(m.Kind) > 0 {
+		i -= len(m.Kind)
+		copy(dAtA[i:], m.Kind)
+		i = encodeVarintTx(dAtA, i, uint64(len(m.Kind)))
+		i--
+		dAtA[i] = 0x12
+	}
+	if len(m.Signer) > 0 {
+		i -= len(m.Signer)
+		copy(dAtA[i:], m.Signer)
+		i = encodeVarintTx(dAtA, i, uint64(len(m.Signer)))
+		i--
+		dAtA[i] = 0xa
+	}
 	return len(dAtA) - i, nil
 }
 
@@ -1037,6 +1040,14 @@ func (m *MsgCreateAuction) Size() (n int) {
 	}
 	var l int
 	_ = l
+	l = len(m.Signer)
+	if l > 0 {
+		n += 1 + l + sovTx(uint64(l))
+	}
+	l = len(m.Kind)
+	if l > 0 {
+		n += 1 + l + sovTx(uint64(l))
+	}
 	l = github_com_cosmos_gogoproto_types.SizeOfStdDuration(m.CommitsDuration)
 	n += 1 + l + sovTx(uint64(l))
 	l = github_com_cosmos_gogoproto_types.SizeOfStdDuration(m.RevealsDuration)
@@ -1047,14 +1058,6 @@ func (m *MsgCreateAuction) Size() (n int) {
 	n += 1 + l + sovTx(uint64(l))
 	l = m.MinimumBid.Size()
 	n += 1 + l + sovTx(uint64(l))
-	l = len(m.Signer)
-	if l > 0 {
-		n += 1 + l + sovTx(uint64(l))
-	}
-	l = len(m.Kind)
-	if l > 0 {
-		n += 1 + l + sovTx(uint64(l))
-	}
 	l = m.MaxPrice.Size()
 	n += 1 + l + sovTx(uint64(l))
 	if m.NumProviders != 0 {
@@ -1204,6 +1207,70 @@ func (m *MsgCreateAuction) Unmarshal(dAtA []byte) error {
 		}
 		switch fieldNum {
 		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Signer", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthTx
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthTx
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Signer = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Kind", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthTx
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthTx
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Kind = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 3:
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field CommitsDuration", wireType)
 			}
@@ -1236,7 +1303,7 @@ func (m *MsgCreateAuction) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
-		case 2:
+		case 4:
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field RevealsDuration", wireType)
 			}
@@ -1269,7 +1336,7 @@ func (m *MsgCreateAuction) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
-		case 3:
+		case 5:
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field CommitFee", wireType)
 			}
@@ -1302,7 +1369,7 @@ func (m *MsgCreateAuction) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
-		case 4:
+		case 6:
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field RevealFee", wireType)
 			}
@@ -1335,7 +1402,7 @@ func (m *MsgCreateAuction) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
-		case 5:
+		case 7:
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field MinimumBid", wireType)
 			}
@@ -1368,70 +1435,6 @@ func (m *MsgCreateAuction) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
-		case 6:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Signer", wireType)
-			}
-			var stringLen uint64
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowTx
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				stringLen |= uint64(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			intStringLen := int(stringLen)
-			if intStringLen < 0 {
-				return ErrInvalidLengthTx
-			}
-			postIndex := iNdEx + intStringLen
-			if postIndex < 0 {
-				return ErrInvalidLengthTx
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Signer = string(dAtA[iNdEx:postIndex])
-			iNdEx = postIndex
-		case 7:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Kind", wireType)
-			}
-			var stringLen uint64
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowTx
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				stringLen |= uint64(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			intStringLen := int(stringLen)
-			if intStringLen < 0 {
-				return ErrInvalidLengthTx
-			}
-			postIndex := iNdEx + intStringLen
-			if postIndex < 0 {
-				return ErrInvalidLengthTx
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Kind = string(dAtA[iNdEx:postIndex])
-			iNdEx = postIndex
 		case 8:
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field MaxPrice", wireType)