#ifndef XRPL_PROTOCOL_FEES_H_INCLUDED
#define XRPL_PROTOCOL_FEES_H_INCLUDED

#include <xrpl/protocol/XRPAmount.h>

namespace ripple {

constexpr std::uint32_t MICRO_DROPS_PER_DROP{1'000'000};

/** Reflects the fee settings for a particular ledger.

    The fees are always the same for any transactions applied
    to a ledger. Changes to fees occur in between ledgers.
*/
struct Fees
{
    XRPAmount base{0};       // Reference tx cost (drops)
    XRPAmount reserve{0};    // Reserve base (drops)
    XRPAmount increment{0};  // Reserve increment (drops)
    std::uint32_t extensionComputeLimit{
        0};  // Extension compute limit (instructions)
    std::uint32_t extensionSizeLimit{0};  // Extension size limit (bytes)
    std::uint32_t gasPrice{0};            // price of WASM gas (micro-drops)

    explicit Fees() = default;
    Fees(Fees const&) = default;
    Fees&
    operator=(Fees const&) = default;

    /** Returns the account reserve given the owner count, in drops.

        The reserve is calculated as the reserve base plus
        the reserve increment times the number of increments.
    */
    XRPAmount
    accountReserve(std::size_t ownerCount) const
    {
        return reserve + ownerCount * increment;
    }
};

}  // namespace ripple

#endif