// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package core

import (
	"errors"

    "github.com/autonity/autonity/core/types"
)

var (
    // ErrKnownBlock is returned when a block to import is already known locally.
    ErrKnownBlock = errors.New("block already known")

    // ErrBannedHash is returned if a block to import is on the banned list.
    ErrBannedHash = errors.New("banned hash")

    // ErrNoGenesis is returned when there is no Genesis Block.
    ErrNoGenesis = errors.New("genesis not found in chain")

    errSideChainReceipts = errors.New("side blocks can't be accepted as ancient chain data")
)

// List of evm-call-message pre-checking errors. All state transition messages will
// be pre-checked before execution. If any invalidation detected, the corresponding
// error should be returned which is defined here.
//
// - If the pre-checking happens in the miner, then the transaction won't be packed.
// - If the pre-checking happens in the block processing procedure, then a "BAD BLOCk"
// error should be emitted.
var (
    // ErrNonceTooLow is returned if the nonce of a transaction is lower than the
    // one present in the local chain.
    ErrNonceTooLow = errors.New("nonce too low")

    // ErrNonceTooHigh is returned if the nonce of a transaction is higher than the
    // next one expected based on the local chain.
    ErrNonceTooHigh = errors.New("nonce too high")

    // ErrNonceMax is returned if the nonce of a transaction sender account has
    // maximum allowed value and would become invalid if incremented.
    ErrNonceMax = errors.New("nonce has max value")

    // ErrGasLimitReached is returned by the gas pool if the amount of gas required
    // by a transaction is higher than what's left in the block.
    ErrGasLimitReached = errors.New("gas limit reached")

    // ErrInsufficientFundsForTransfer is returned if the transaction sender doesn't
    // have enough funds for transfer(topmost call only).
    ErrInsufficientFundsForTransfer = errors.New("insufficient funds for transfer")

    // ErrInsufficientFunds is returned if the total cost of executing a transaction
    // is higher than the balance of the user's account.
    ErrInsufficientFunds = errors.New("insufficient funds for gas * price + value")

    // ErrGasUintOverflow is returned when calculating gas usage.
    ErrGasUintOverflow = errors.New("gas uint64 overflow")

    // ErrIntrinsicGas is returned if the transaction is specified to use less gas
    // than required to start the invocation.
    ErrIntrinsicGas = errors.New("intrinsic gas too low")

    // ErrTxTypeNotSupported is returned if a transaction is not supported in the
    // current network configuration.
    ErrTxTypeNotSupported = types.ErrTxTypeNotSupported

    // ErrTipAboveFeeCap is a sanity error to ensure no one is able to specify a
    // transaction with a tip higher than the total fee cap.
    ErrTipAboveFeeCap = errors.New("max priority fee per gas higher than max fee per gas")

    // ErrTipVeryHigh is a sanity error to avoid extremely big numbers specified
    // in the tip field.
    ErrTipVeryHigh = errors.New("max priority fee per gas higher than 2^256-1")

    // ErrFeeCapVeryHigh is a sanity error to avoid extremely big numbers specified
    // in the fee cap field.
    ErrFeeCapVeryHigh = errors.New("max fee per gas higher than 2^256-1")

    // ErrFeeCapTooLow is returned if the transaction fee cap is less than the
    // the base fee of the block.
    ErrFeeCapTooLow = errors.New("max fee per gas less than block base fee")

    // ErrSenderNoEOA is returned if the sender of a transaction is a contract.
    ErrSenderNoEOA = errors.New("sender not an eoa")
)
