feat(prover): add more capacity related logs (#408)

Co-authored-by: David <david@taiko.xyz>

pkg/rpc/utils.go

@@ -54,19 +54,25 @@ func CheckProverBalance(
 		return false, err
 	}
 
+	log.Info("Prover's deposited taikoTokenBalance", "balance", depositedBalance.String(), "address", prover.Hex())
+
 	if bond.Cmp(depositedBalance) > 0 {
 		// Check allowance on taiko token contract
 		allowance, err := rpc.TaikoToken.Allowance(&bind.CallOpts{Context: ctxWithTimeout}, prover, taikoL1Address)
 		if err != nil {
 			return false, err
 		}
 
+		log.Info("Prover allowance for TaikoL1 contract", "allowance", allowance.String(), "address", prover.Hex())
+
 		// Check prover's taiko token balance
 		balance, err := rpc.TaikoToken.BalanceOf(&bind.CallOpts{Context: ctxWithTimeout}, prover)
 		if err != nil {
 			return false, err
 		}
 
+		log.Info("Prover's wallet taiko token balance", "balance", balance.String(), "address", prover.Hex())
+
 		if bond.Cmp(allowance) > 0 || bond.Cmp(balance) > 0 {
 			log.Info(
 				"Assigned prover does not have required on-chain token balance or allowance",

prover/capacity_manager/capacity_manager.go

@@ -2,6 +2,8 @@ package capacity_manager
 
 import (
 	"sync"
+
+	"github.com/ethereum/go-ethereum/log"
 )
 
 // CapacityManager manages the prover capacity concurrent-safely.
@@ -20,6 +22,8 @@ func (m *CapacityManager) ReadCapacity() uint64 {
 	m.mutex.RLock()
 	defer m.mutex.RUnlock()
 
+	log.Info("Reading capacity", "capacity", m.capacity)
+
 	return m.capacity
 }
 
@@ -29,18 +33,25 @@ func (m *CapacityManager) ReleaseOneCapacity() uint64 {
 	defer m.mutex.Unlock()
 
 	m.capacity += 1
+
+	log.Info("Released capacity", "capacityAfterRelease", m.capacity)
+
 	return m.capacity
 }
 
-// TakeOneCapacity takes one capacit·y.
+// TakeOneCapacity takes one capacity.
 func (m *CapacityManager) TakeOneCapacity() (uint64, bool) {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
 	if m.capacity == 0 {
+		log.Info("Could not take one capacity", "capacity", m.capacity)
 		return 0, false
 	}
 
 	m.capacity -= 1
+
+	log.Info("Took one capacity", "capacityAfterTaking", m.capacity)
+
 	return m.capacity, true
 }

prover/server/api.go

@@ -80,15 +80,27 @@ func (srv *ProverServer) CreateAssignment(c echo.Context) error {
 	}
 
 	if req.Fee.Cmp(srv.minProofFee) < 0 {
+		log.Warn(
+			"Proof fee too low",
+			"reqFee", req.Fee.String(),
+			"srvMinProofFee", srv.minProofFee.String(),
+			"proposerIP", c.RealIP(),
+		)
 		return echo.NewHTTPError(http.StatusUnprocessableEntity, "proof fee too low")
 	}
 
 	if req.Expiry > uint64(time.Now().Add(srv.maxExpiry).Unix()) {
+		log.Warn(
+			"Expiry too long",
+			"requestExpiry", req.Expiry,
+			"srvMaxExpiry", srv.maxExpiry,
+			"proposerIP", c.RealIP(),
+		)
 		return echo.NewHTTPError(http.StatusUnprocessableEntity, "expiry too long")
 	}
 
 	if srv.capacityManager.ReadCapacity() == 0 {
-		log.Warn("Prover does not have capacity")
+		log.Warn("Prover does not have capacity", "proposerIP", c.RealIP())
 		return echo.NewHTTPError(http.StatusUnprocessableEntity, "prover does not have capacity")
 	}