feat: add build crosschain input (#91)

[bytom/vapor.git] / blockchain / txbuilder / actions.go

diff --git a/blockchain/txbuilder/actions.go b/blockchain/txbuilder/actions.go
index d5baf78..99f35bc 100644 (file)
--- a/blockchain/txbuilder/actions.go
+++ b/blockchain/txbuilder/actions.go
@@ -5,6 +5,8 @@ import (
        stdjson "encoding/json"
        "errors"
 
+       "github.com/vapor/config"
+
        "github.com/vapor/common"
        "github.com/vapor/consensus"
        "github.com/vapor/encoding/json"
@@ -249,3 +251,45 @@ func (a *voteOutputAction) Build(ctx context.Context, b *TemplateBuilder) error
 func (a *voteOutputAction) ActionType() string {
        return "vote_output"
 }
+
+// DecodeCrossInAction convert input data to action struct
+func DecodeCrossInAction(data []byte) (Action, error) {
+       a := new(crossInAction)
+       err := stdjson.Unmarshal(data, a)
+       return a, err
+}
+
+type crossInAction struct {
+       bc.AssetAmount
+       SourceID          bc.Hash       `json:"source_id"`
+       SourcePos         uint64        `json:"source_pos"`
+       RawDefinitionByte json.HexBytes `json:"raw_definition_byte"`
+}
+
+func (a *crossInAction) Build(ctx context.Context, builder *TemplateBuilder) error {
+       var missing []string
+       if a.SourceID.IsZero() {
+               missing = append(missing, "source_id")
+       }
+       if a.AssetId.IsZero() {
+               missing = append(missing, "asset_id")
+       }
+       if a.Amount == 0 {
+               missing = append(missing, "amount")
+       }
+       if len(missing) > 0 {
+               return MissingFieldsError(missing...)
+       }
+
+       // arguments will be set when materializeWitnesses
+       fedProg := config.FederationProgrom(config.CommonConfig)
+       txin := types.NewCrossChainInput(nil, a.SourceID, *a.AssetId, a.Amount, a.SourcePos, fedProg, a.RawDefinitionByte)
+       tplIn := &SigningInstruction{}
+       fed := config.CommonConfig.Federation
+       tplIn.AddRawWitnessKeys(fed.Xpubs, nil, fed.Quorum)
+       return builder.AddInput(txin, tplIn)
+}
+
+func (a *crossInAction) ActionType() string {
+       return "cross_chain_in"
+}