#include "./matroskaeditionentry.h"
#include "./ebmlelement.h"
#include "./matroskaid.h"

#include <c++utilities/misc/memory.h>

#include <string>

using namespace std;

namespace Media {

/*!
 * \brief Constructs a new MatroskaEditionEntry for the specified \a editionEntryElement.
 */
MatroskaEditionEntry::MatroskaEditionEntry(EbmlElement *editionEntryElement) :
    m_editionEntryElement(editionEntryElement),
    m_id(0),
    m_hidden(false),
    m_default(false),
    m_ordered(false)
{}

/*!
 * \brief Destroys the MatroskaEditionEntry.
 */
MatroskaEditionEntry::~MatroskaEditionEntry()
{}

/*!
 * \brief Returns a label for the entry.
 */
string MatroskaEditionEntry::label() const
{
    stringstream ss;
    ss << "ID: " << id();
    return ss.str();
}

/*!
 * \brief Parses the "EditionEntry"-element specified when constructing the object.
 *
 * Fetches the chapters() but does not parse them.
 *
 * Clears all previous parsing results.
 */
void MatroskaEditionEntry::parse()
{
    // clear previous values and status
    static const string context("parsing \"EditionEntry\"-element");
    invalidateStatus();
    clear();
    // iterate through children of "EditionEntry"-element
    EbmlElement *entryChild = m_editionEntryElement->firstChild();
    while(entryChild) {
        entryChild->parse();
        switch(entryChild->id()) {
        case MatroskaIds::EditionUID:
            m_id = entryChild->readUInteger();
            break;
        case MatroskaIds::EditionFlagHidden:
            m_hidden = entryChild->readUInteger() == 1;
            break;
        case MatroskaIds::EditionFlagDefault:
            m_default = entryChild->readUInteger() == 1;
            break;
        case MatroskaIds::EditionFlagOrdered:
            m_ordered = entryChild->readUInteger() == 1;
            break;
        case MatroskaIds::ChapterAtom:
            m_chapters.emplace_back(make_unique<MatroskaChapter>(entryChild));
            break;
        default:
            addNotification(NotificationType::Warning, "\"EditionEntry\"-element contains unknown child element \"" + entryChild->idToString() + "\" which will be ingored.", context);
        }
        entryChild = entryChild->nextSibling();
    }
}

/*!
 * \brief Parses the "EditionEntry"-element specified when constructing the object.
 *
 * Parses also fetched chapters and nested chapters.
 *
 * Clears all previous parsing results.
 */
void MatroskaEditionEntry::parseNested()
{
    parse();
    for(auto &chapter : chapters()) {
        chapter->parseNested();
    }
}

/*!
 * \brief Resets the object to its initial state.
 */
void MatroskaEditionEntry::clear()
{
    m_id = 0;
    m_hidden = m_default = m_ordered = false;
    m_chapters.clear();
}

} // namespace Media