9867f78385
* Add network proportion to homepage and /vspinfo. Proportion is calculated using the number of tickets currently registered with the VSP, divided by the total size of the network ticket pool as reported by `getblockheader`. The value will only ever be an estimate because: - it's possible for a single ticket to be added to multiple VSPs. - vspd does not distinguish between immature and live tickets, whereas `getblockheader` only reports live tickets. - `getblockheader` is reporting the size of the ticket pool as of the previous block, not the current block. * xaur suggestions * Show missed ticket %, not just the raw number.
109 lines
2.5 KiB
Go
109 lines
2.5 KiB
Go
// Copyright (c) 2020 The Decred developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package webapi
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import (
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"context"
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"encoding/base64"
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"net/http"
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"sync"
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"time"
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"github.com/decred/dcrd/chaincfg/v3"
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"github.com/decred/vspd/database"
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"github.com/decred/vspd/rpc"
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"github.com/gin-gonic/gin"
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)
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// vspStats is used to cache values which are commonly used by the API, so
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// repeated web requests don't repeatedly trigger DB or RPC calls.
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type vspStats struct {
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PubKey string
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Voting int64
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Voted int64
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Revoked int64
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VSPFee float64
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Network string
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UpdateTime string
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SupportEmail string
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VspClosed bool
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Debug bool
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Designation string
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BlockHeight uint32
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NetworkProportion float32
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RevokedProportion float32
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}
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var statsMtx sync.RWMutex
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var stats *vspStats
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func getVSPStats() *vspStats {
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statsMtx.RLock()
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defer statsMtx.RUnlock()
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return stats
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}
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// initVSPStats creates the struct which holds the cached VSP stats, and
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// initializes it with static values.
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func initVSPStats() {
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statsMtx.Lock()
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defer statsMtx.Unlock()
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stats = &vspStats{
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PubKey: base64.StdEncoding.EncodeToString(signPubKey),
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VSPFee: cfg.VSPFee,
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Network: cfg.NetParams.Name,
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SupportEmail: cfg.SupportEmail,
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VspClosed: cfg.VspClosed,
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Debug: cfg.Debug,
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Designation: cfg.Designation,
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}
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}
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// updateVSPStats updates the dynamic values in the cached VSP stats (ticket
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// counts and best block height).
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func updateVSPStats(ctx context.Context, db *database.VspDatabase,
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dcrd rpc.DcrdConnect, netParams *chaincfg.Params) error {
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// Update counts of voting, voted and revoked tickets.
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voting, voted, revoked, err := db.CountTickets()
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if err != nil {
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return err
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}
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// Update best block height.
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dcrdClient, err := dcrd.Client(ctx, netParams)
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if err != nil {
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return err
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}
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bestBlock, err := dcrdClient.GetBestBlockHeader()
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if err != nil {
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return err
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}
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statsMtx.Lock()
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defer statsMtx.Unlock()
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stats.UpdateTime = dateTime(time.Now().Unix())
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stats.Voting = voting
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stats.Voted = voted
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stats.Revoked = revoked
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stats.BlockHeight = bestBlock.Height
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stats.NetworkProportion = float32(voting) / float32(bestBlock.PoolSize)
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stats.RevokedProportion = float32(revoked) / float32(voted)
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return nil
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}
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func homepage(c *gin.Context) {
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c.HTML(http.StatusOK, "homepage.html", gin.H{
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"VspStats": getVSPStats(),
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})
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}
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