/*
  ==============================================================================

   This file is part of the JUCE framework.
   Copyright (c) Raw Material Software Limited

   JUCE is an open source framework subject to commercial or open source
   licensing.

   By downloading, installing, or using the JUCE framework, or combining the
   JUCE framework with any other source code, object code, content or any other
   copyrightable work, you agree to the terms of the JUCE End User Licence
   Agreement, and all incorporated terms including the JUCE Privacy Policy and
   the JUCE Website Terms of Service, as applicable, which will bind you. If you
   do not agree to the terms of these agreements, we will not license the JUCE
   framework to you, and you must discontinue the installation or download
   process and cease use of the JUCE framework.

   JUCE End User Licence Agreement: https://juce.com/legal/juce-9-licence/
   JUCE Privacy Policy: https://juce.com/juce-privacy-policy
   JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/

   Or:

   You may also use this code under the terms of the AGPLv3:
   https://www.gnu.org/licenses/agpl-3.0.en.html

   THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
   WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.

  ==============================================================================
*/

namespace juce::midi_ci
{

/**
    Flags indicating the features that are supported by a given CI device.

    @tags{Audio}
*/
class DeviceFeatures
{
public:
    /** Constructs a DeviceFeatures object with no flags enabled. */
    DeviceFeatures() = default;

    /** Constructs a DeviceFeatures object, taking flag values from the "Capability Inquiry
        Category Supported" byte in a CI Discovery message.
    */
    explicit DeviceFeatures (std::byte f) : flags ((uint8_t) f) {}

    /** Returns a new DeviceFeatures instance with profile configuration marked as supported. */
    [[nodiscard]] DeviceFeatures withProfileConfigurationSupported (bool x = true) const        { return withFlag (profileConfiguration, x); }
    /** Returns a new DeviceFeatures instance with property exchange marked as supported. */
    [[nodiscard]] DeviceFeatures withPropertyExchangeSupported     (bool x = true) const        { return withFlag (propertyExchange,     x); }
    /** Returns a new DeviceFeatures instance with process inquiry marked as supported. */
    [[nodiscard]] DeviceFeatures withProcessInquirySupported       (bool x = true) const        { return withFlag (processInquiry,       x); }

    /** @see withProfileConfigurationSupported() */
    [[nodiscard]] bool isProfileConfigurationSupported  () const      { return getFlag (profileConfiguration); }
    /** @see withPropertyExchangeSupported() */
    [[nodiscard]] bool isPropertyExchangeSupported      () const      { return getFlag (propertyExchange); }
    /** @see withProcessInquirySupported() */
    [[nodiscard]] bool isProcessInquirySupported        () const      { return getFlag (processInquiry); }

    /** Returns the feature flags formatted into a bitfield suitable for use as the "Capability
        Inquiry Category Supported" byte in a CI Discovery message.
    */
    std::byte getSupportedCapabilities() const { return std::byte { flags }; }

    /** Returns true if this and other both have the same flags set. */
    bool operator== (const DeviceFeatures& other) const { return flags == other.flags; }
    /** Returns true if any flags in this and other differ. */
    bool operator!= (const DeviceFeatures& other) const { return ! operator== (other); }

private:
    enum Flags
    {
        profileConfiguration = 1 << 2,
        propertyExchange     = 1 << 3,
        processInquiry       = 1 << 4,
    };

    [[nodiscard]] DeviceFeatures withFlag (Flags f, bool value) const
    {
        return withMember (*this, &DeviceFeatures::flags, (uint8_t) (value ? (flags | f) : (flags & ~f)));
    }

    bool getFlag (Flags f) const
    {
        return (flags & f) != 0;
    }

    uint8_t flags = 0;
};

} // namespace juce::midi_ci
