Fix Testnet3 by specifying the minimum vote version. (#292)

Author: dajohi

agenda.go

@@ -213,9 +213,9 @@ func agendasFromJSON(getVoteInfo types.GetVoteInfoResult) []Agenda {
 	return parsedAgendas
 }
 
-func agendasForVersions(ctx context.Context, dcrdClient *rpcclient.Client, maxVoteVersion uint32, currentHeight int64, svis StakeVersionIntervals) ([]Agenda, error) {
+func agendasForVersions(ctx context.Context, dcrdClient *rpcclient.Client, currentHeight int64, svis StakeVersionIntervals) ([]Agenda, error) {
 	var allAgendas []Agenda
-	for version := uint32(0); version <= maxVoteVersion; version++ {
+	for version := svis.MinVoteVersion; version <= svis.MaxVoteVersion; version++ {
 		// Retrieve Agendas for this voting period
 		getVoteInfo, err := dcrdClient.GetVoteInfo(ctx, version)
 		if err != nil {

main.go

@@ -276,7 +276,7 @@ func updatetemplateInformation(ctx context.Context, dcrdClient *rpcclient.Client
 		templateInformation.IsUpgrading = true
 	}
 
-	templateInformation.Agendas, err = agendasForVersions(ctx, dcrdClient, svis.MaxVoteVersion, height, svis)
+	templateInformation.Agendas, err = agendasForVersions(ctx, dcrdClient, height, svis)
 	if err != nil {
 		log.Printf("Error getting agendas: %v", err)
 		return

stake_version_intervals.go

@@ -16,6 +16,7 @@ import (
 // StakeVersionIntervals wraps a set of types.VersionIntervals
 type StakeVersionIntervals struct {
 	Intervals      []types.VersionInterval
+	MinVoteVersion uint32
 	MaxVoteVersion uint32
 }
 
@@ -82,7 +83,8 @@ func AllStakeVersionIntervals(ctx context.Context, dcrdClient *rpcclient.Client,
 	}
 
 	svis := StakeVersionIntervals{
-		Intervals: stakeVersionInfoResult.Intervals}
+		Intervals: stakeVersionInfoResult.Intervals,
+	}
 
 	// Reverse the slice of SVIs
 	// This makes traversing the set easier later on,
@@ -100,6 +102,11 @@ func AllStakeVersionIntervals(ctx context.Context, dcrdClient *rpcclient.Client,
 		}
 	}
 
+	min := activeNetParams.GenesisBlock.Header.StakeVersion
+	if min < 4 {
+		min = 4
+	}
+	svis.MinVoteVersion = min
 	svis.MaxVoteVersion = max
 
 	return svis, nil