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

   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-8-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.

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

/** @cond */
namespace juce::universal_midi_packets
{

/**
    Holds a collection of Universal MIDI Packets.

    Unlike MidiBuffer, this collection does not store any additional information
    (e.g. timestamps) alongside the raw messages.

    If timestamps are required, these can be added to the container in UMP format,
    as Jitter Reduction Utility messages.

    @tags{Audio}
*/
class Packets
{
public:
    /** Adds a single packet to the collection.

        The View must be valid for this to work. If the view
        points to a malformed message, or if the view points to a region
        too short for the contained message, this call will result in
        undefined behaviour.
    */
    void add (const View& v) { storage.insert (storage.end(), v.cbegin(), v.cend()); }

    void add (const PacketX1& p) { addImpl (p); }
    void add (const PacketX2& p) { addImpl (p); }
    void add (const PacketX3& p) { addImpl (p); }
    void add (const PacketX4& p) { addImpl (p); }

    /** Pre-allocates space for at least `numWords` 32-bit words in this collection. */
    void reserve (size_t numWords)          { storage.reserve (numWords); }

    /** Removes all previously-added packets from this collection. */
    void clear()                            { storage.clear(); }

    /** Gets an iterator pointing to the first packet in this collection. */
    Iterator cbegin() const noexcept     { return Iterator (data(), size()); }
    Iterator begin() const noexcept      { return cbegin(); }

    /** Gets an iterator pointing one-past the last packet in this collection. */
    Iterator cend() const noexcept       { return Iterator (data() + size(), 0); }
    Iterator end() const noexcept        { return cend(); }

    /** Gets a pointer to the contents of the collection as a range of raw 32-bit words. */
    const uint32_t* data() const noexcept   { return storage.data(); }

    /** Returns the number of uint32_t words in storage.

        Note that this is likely to be larger than the number of packets
        currently being stored, as some packets span multiple words.
    */
    size_t size() const noexcept            { return storage.size(); }

private:
    template <size_t numWords>
    void addImpl (const Packet<numWords>& p)
    {
        jassert (Utils::getNumWordsForMessageType (p[0]) == numWords);
        add (View (p.data()));
    }

    std::vector<uint32_t> storage;
};

} // namespace juce::universal_midi_packets
/** @endcond */
