package api import ( "net/http" "time" ethCommon "github.com/ethereum/go-ethereum/common" "github.com/gin-gonic/gin" "github.com/hermeznetwork/hermez-node/common" "github.com/hermeznetwork/hermez-node/db/historydb" ) // Network define status of the network type Network struct { LastBlock int64 `json:"lastBlock"` LastBatch historydb.BatchAPI `json:"lastBatch"` CurrentSlot int64 `json:"currentSlot"` NextForgers []NextForger `json:"nextForgers"` } // NextForger is a representation of the information of a coordinator and the period will forge type NextForger struct { Coordinator historydb.CoordinatorAPI Period Period } // Period is a representation of a period type Period struct { SlotNum int64 FromBlock int64 ToBlock int64 FromTimestamp time.Time ToTimestamp time.Time } var bootCoordinator historydb.CoordinatorAPI = historydb.CoordinatorAPI{ ItemID: 0, Bidder: ethCommon.HexToAddress("0x111111111111111111111111111111111111111"), Forger: ethCommon.HexToAddress("0x111111111111111111111111111111111111111"), URL: "https://bootCoordinator", } func (a *API) getState(c *gin.Context) { c.JSON(http.StatusOK, a.status) } // SC Vars // SetRollupVariables set Status.Rollup variables func (a *API) SetRollupVariables(rollupVariables common.RollupVariables) { a.status.Rollup = rollupVariables } // SetWDelayerVariables set Status.WithdrawalDelayer variables func (a *API) SetWDelayerVariables(wDelayerVariables common.WDelayerVariables) { a.status.WithdrawalDelayer = wDelayerVariables } // SetAuctionVariables set Status.Auction variables func (a *API) SetAuctionVariables(auctionVariables common.AuctionVariables) { a.status.Auction = auctionVariables } // Network // UpdateNetworkInfo update Status.Network information func (a *API) UpdateNetworkInfo(lastBlock common.Block, lastBatchNum common.BatchNum, currentSlot int64) error { a.status.Network.LastBlock = lastBlock.EthBlockNum lastBatch, err := a.h.GetBatchAPI(lastBatchNum) if err != nil { return err } a.status.Network.LastBatch = *lastBatch a.status.Network.CurrentSlot = currentSlot lastClosedSlot := currentSlot + int64(a.status.Auction.ClosedAuctionSlots) nextForgers, err := a.GetNextForgers(lastBlock, currentSlot, lastClosedSlot) if err != nil { return err } a.status.Network.NextForgers = nextForgers return nil } // GetNextForgers returns next forgers func (a *API) GetNextForgers(lastBlock common.Block, currentSlot, lastClosedSlot int64) ([]NextForger, error) { secondsPerBlock := int64(15) //nolint:gomnd // currentSlot and lastClosedSlot included limit := uint(lastClosedSlot - currentSlot + 1) bids, _, err := a.h.GetBestBidsAPI(¤tSlot, &lastClosedSlot, nil, &limit, "ASC") if err != nil { return nil, err } nextForgers := []NextForger{} // Create nextForger for each slot for i := currentSlot; i <= lastClosedSlot; i++ { fromBlock := i*int64(a.cg.AuctionConstants.BlocksPerSlot) + a.cg.AuctionConstants.GenesisBlockNum toBlock := (i+1)*int64(a.cg.AuctionConstants.BlocksPerSlot) + a.cg.AuctionConstants.GenesisBlockNum - 1 nextForger := NextForger{ Period: Period{ SlotNum: i, FromBlock: fromBlock, ToBlock: toBlock, FromTimestamp: lastBlock.Timestamp.Add(time.Second * time.Duration(secondsPerBlock*(fromBlock-lastBlock.EthBlockNum))), ToTimestamp: lastBlock.Timestamp.Add(time.Second * time.Duration(secondsPerBlock*(toBlock-lastBlock.EthBlockNum))), }, } foundBid := false // If there is a bid for a slot, get forger (coordinator) for j := range bids { if bids[j].SlotNum == i { foundBid = true coordinator, err := a.h.GetCoordinatorAPI(bids[j].Bidder) if err != nil { return nil, err } nextForger.Coordinator = *coordinator break } } // If there is no bid, the coordinator that will forge is boot coordinator if !foundBid { nextForger.Coordinator = bootCoordinator } nextForgers = append(nextForgers, nextForger) } return nextForgers, nil } // Metrics // UpdateMetrics update Status.Metrics information func (a *API) UpdateMetrics() error { metrics, err := a.h.GetMetrics(a.status.Network.LastBatch.BatchNum) if err != nil { return err } a.status.Metrics = *metrics return nil } // Recommended fee // UpdateRecommendedFee update Status.RecommendedFee information func (a *API) UpdateRecommendedFee() error { return nil }