classic

type RPCClient interface {
	LoadAccount(ctx context.Context, address string) (txnbuild.Account, error)
	SendTransaction(ctx context.Context, req protocol.SendTransactionRequest) (protocol.SendTransactionResponse, error)
	GetTransaction(ctx context.Context, req protocol.GetTransactionRequest) (protocol.GetTransactionResponse, error)
	GetLedgerEntries(ctx context.Context, req protocol.GetLedgerEntriesRequest) (protocol.GetLedgerEntriesResponse, error)
}

type Service interface {
	// CreateSponsoredAccount creates a new child account with sponsorship and USDC trustline.
	CreateSponsoredAccount(ctx context.Context, req types.CreateAccountRequest) error

	// SponsoredPaymentTransaction executes a sponsored payment from a child account.
	SponsoredPaymentTransaction(ctx context.Context, req types.SponsoredPaymentTransactionRequest) (*types.SponsoredPaymentTransactionResponse, error)

	// SendUSDC sends USDC directly from the treasury wallet to an external Stellar address with a memo.
	SendUSDC(ctx context.Context, req types.SendUSDCRequest) (*types.SendUSDCResponse, error)
}