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chore: refacto vote watcher and x-gov version (#55)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,187 @@ | ||
| package watcher | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "github.com/cosmos/cosmos-sdk/client" | ||
| gov "github.com/cosmos/cosmos-sdk/x/gov/types/v1" | ||
| govbeta "github.com/cosmos/cosmos-sdk/x/gov/types/v1beta1" | ||
| "github.com/kilnfi/cosmos-validator-watcher/pkg/metrics" | ||
| "github.com/kilnfi/cosmos-validator-watcher/pkg/rpc" | ||
| "github.com/rs/zerolog/log" | ||
| "google.golang.org/grpc/codes" | ||
| "google.golang.org/grpc/status" | ||
| ) | ||
|
|
||
| type VotesWatcher struct { | ||
| metrics *metrics.Metrics | ||
| validators []TrackedValidator | ||
| pool *rpc.Pool | ||
| options VotesWatcherOptions | ||
| } | ||
|
|
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| type VotesWatcherOptions struct { | ||
| GovModuleVersion string | ||
| } | ||
|
|
||
| func NewVotesWatcher(validators []TrackedValidator, metrics *metrics.Metrics, pool *rpc.Pool, options VotesWatcherOptions) *VotesWatcher { | ||
| return &VotesWatcher{ | ||
| metrics: metrics, | ||
| validators: validators, | ||
| pool: pool, | ||
| options: options, | ||
| } | ||
| } | ||
|
|
||
| func (w *VotesWatcher) Start(ctx context.Context) error { | ||
| ticker := time.NewTicker(1 * time.Minute) | ||
|
|
||
| for { | ||
| node := w.pool.GetSyncedNode() | ||
| if node == nil { | ||
| log.Warn().Msg("no node available to fetch proposals") | ||
| } else if err := w.fetchProposalsV1(ctx, node); err != nil { | ||
| log.Error().Err(err).Msg("failed to fetch pending proposals") | ||
| } | ||
|
|
||
| select { | ||
| case <-ctx.Done(): | ||
| return nil | ||
| case <-ticker.C: | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (w *VotesWatcher) fetchProposals(ctx context.Context, node *rpc.Node) error { | ||
| switch w.options.GovModuleVersion { | ||
| case "v1beta1": | ||
| return w.fetchProposalsV1Beta1(ctx, node) | ||
| default: // v1 | ||
| return w.fetchProposalsV1(ctx, node) | ||
| } | ||
| } | ||
| func (w *VotesWatcher) fetchProposalsV1(ctx context.Context, node *rpc.Node) error { | ||
| clientCtx := (client.Context{}).WithClient(node.Client) | ||
| queryClient := gov.NewQueryClient(clientCtx) | ||
|
|
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| // Fetch all proposals in voting period | ||
| proposalsResp, err := queryClient.Proposals(ctx, &gov.QueryProposalsRequest{ | ||
| ProposalStatus: gov.StatusVotingPeriod, | ||
| }) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to get proposals: %w", err) | ||
| } | ||
|
|
||
| chainID := node.ChainID() | ||
|
|
||
| // For each proposal, fetch validators vote | ||
| for _, proposal := range proposalsResp.GetProposals() { | ||
| w.metrics.ProposalEndTime.WithLabelValues(chainID, fmt.Sprintf("%d", proposal.Id)).Set(float64(proposal.VotingEndTime.Unix())) | ||
|
|
||
| for _, validator := range w.validators { | ||
| voter := validator.AccountAddress() | ||
| if voter == "" { | ||
| log.Warn().Str("validator", validator.Name).Msg("no account address for validator") | ||
| continue | ||
| } | ||
| voteResp, err := queryClient.Vote(ctx, &gov.QueryVoteRequest{ | ||
| ProposalId: proposal.Id, | ||
| Voter: voter, | ||
| }) | ||
|
|
||
| w.metrics.Vote.Reset() | ||
| if isInvalidArgumentError(err) { | ||
| w.handleVoteV1(chainID, validator, proposal.Id, nil) | ||
| } else if err != nil { | ||
| return fmt.Errorf("failed to get validator vote for proposal %d: %w", proposal.Id, err) | ||
| } else { | ||
| vote := voteResp.GetVote() | ||
| w.handleVoteV1(chainID, validator, proposal.Id, vote.Options) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (w *VotesWatcher) handleVoteV1(chainID string, validator TrackedValidator, proposalId uint64, votes []*gov.WeightedVoteOption) { | ||
| voted := false | ||
| for _, option := range votes { | ||
| if option.Option != gov.OptionEmpty { | ||
| voted = true | ||
| break | ||
| } | ||
| } | ||
|
|
||
| w.metrics.Vote. | ||
| WithLabelValues(chainID, validator.Address, validator.Name, fmt.Sprintf("%d", proposalId)). | ||
| Set(metrics.BoolToFloat64(voted)) | ||
| } | ||
|
|
||
| func (w *VotesWatcher) fetchProposalsV1Beta1(ctx context.Context, node *rpc.Node) error { | ||
| clientCtx := (client.Context{}).WithClient(node.Client) | ||
| queryClient := govbeta.NewQueryClient(clientCtx) | ||
|
|
||
| // Fetch all proposals in voting period | ||
| proposalsResp, err := queryClient.Proposals(ctx, &govbeta.QueryProposalsRequest{ | ||
| ProposalStatus: govbeta.StatusVotingPeriod, | ||
| }) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to get proposals: %w", err) | ||
| } | ||
|
|
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| chainID := node.ChainID() | ||
|
|
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| // For each proposal, fetch validators vote | ||
| for _, proposal := range proposalsResp.GetProposals() { | ||
| w.metrics.ProposalEndTime.WithLabelValues(chainID, fmt.Sprintf("%d", proposal.ProposalId)).Set(float64(proposal.VotingEndTime.Unix())) | ||
|
|
||
| for _, validator := range w.validators { | ||
| voter := validator.AccountAddress() | ||
| if voter == "" { | ||
| log.Warn().Str("validator", validator.Name).Msg("no account address for validator") | ||
| continue | ||
| } | ||
| voteResp, err := queryClient.Vote(ctx, &govbeta.QueryVoteRequest{ | ||
| ProposalId: proposal.ProposalId, | ||
| Voter: voter, | ||
| }) | ||
|
|
||
| w.metrics.Vote.Reset() | ||
| if isInvalidArgumentError(err) { | ||
| w.handleVoteV1Beta1(chainID, validator, proposal.ProposalId, nil) | ||
| } else if err != nil { | ||
| return fmt.Errorf("failed to get validator vote for proposal %d: %w", proposal.ProposalId, err) | ||
| } else { | ||
| vote := voteResp.GetVote() | ||
| w.handleVoteV1Beta1(chainID, validator, proposal.ProposalId, vote.Options) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (w *VotesWatcher) handleVoteV1Beta1(chainID string, validator TrackedValidator, proposalId uint64, votes []govbeta.WeightedVoteOption) { | ||
| voted := false | ||
| for _, option := range votes { | ||
| if option.Option != govbeta.OptionEmpty { | ||
| voted = true | ||
| break | ||
| } | ||
| } | ||
|
|
||
| w.metrics.Vote. | ||
| WithLabelValues(chainID, validator.Address, validator.Name, fmt.Sprintf("%d", proposalId)). | ||
| Set(metrics.BoolToFloat64(voted)) | ||
| } | ||
|
|
||
| func isInvalidArgumentError(err error) bool { | ||
| st, ok := status.FromError(err) | ||
| if !ok { | ||
| return false | ||
| } | ||
| return st.Code() == codes.InvalidArgument | ||
| } |
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