config

type Config struct {
	// Blockchain connection
	ChainID      string
	GRPCEndpoint string // Lumera blockchain gRPC endpoint
	RPCEndpoint  string // Lumera RPC endpoint for websocket subscriptions

	// Account settings
	Address string // Your cosmos address (lumera1...)
	KeyName string // Key name in keyring

	// Chain economics overrides. Empty/nil values fall back to Lumera defaults
	// applied by blockchain.New (AccountHRP "lumera", FeeDenom "ulume",
	// GasPrice 0.025). Set these for non-Lumera chains.
	AccountHRP string            // bech32 account prefix (Lumera: "lumera")
	FeeDenom   string            // cosmos fee denom for non-EVM txs (Lumera: "ulume")
	GasPrice   sdkmath.LegacyDec // gas price in FeeDenom/gas (Lumera: 0.025)

	// Timeouts
	BlockchainTimeout time.Duration
	StorageTimeout    time.Duration

	// Optional overrides
	MaxRetries     int
	MaxRecvMsgSize int // Max receive message size for gRPC (default: 4MB)
	MaxSendMsgSize int // Max send message size for gRPC (default: 50MB)

	// WaitTx controls transaction confirmation behaviour.
	WaitTx WaitTxConfig

	// LogLevel controls SDK logging (debug, info, warn, error). Default is error.
	LogLevel string

	// Logger is optional; when set, SDK operations emit diagnostics.
	Logger *zap.Logger

	// EVM settings (cosmos/evm). Set when the chain has EVM enabled.
	EVMChainID       *big.Int // EIP-155 chain ID (distinct from cosmos ChainID)
	EVMNativeDenom   string   // cosmos/evm `evm_denom` (Lumera: "ulume")
	EVMExtendedDenom string   // 18-decimal precisebank denom (Lumera: "alume")
	EVMGasTipCap     *big.Int // optional default tip cap (alume/gas)
	EVMGasFeeCap     *big.Int // optional default fee cap (alume/gas)
}

type WaitTxConfig struct {
	// SubscriberSetupTimeout defines how long we wait for the websocket subscription to become
	// ready during the initial setup phase.
	SubscriberSetupTimeout time.Duration

	// Polling is a fallback mechanism when a websocket subscription is not available.
	// PollInterval controls how frequently the fallback poller queries gRPC for the tx.
	PollInterval time.Duration
	// PollMaxRetries limits the number of poll attempts before failing (0 => unlimited until ctx deadline).
	PollMaxRetries int
	// PollBackoffMultiplier > 1 enables exponential growth for poll intervals.
	PollBackoffMultiplier float64
	// PollBackoffMaxInterval caps the exponential backoff delay (0 => unlimited).
	PollBackoffMaxInterval time.Duration
	// PollBackoffJitter randomizes delays (0..1) to avoid synced retries.
	PollBackoffJitter float64
}