#include <pugixml.hpp>

#include "project.h"

namespace Ember
{

Project::Project(boost::filesystem::path projectFilePath)
    : m_path(projectFilePath),
      m_name(),
      m_bitsPerChannel(8),
      m_audioSampleRate(48000),
      m_rootItem(projectFilePath.parent_path(), nullptr, this)
{
}

boost::filesystem::path Project::path() const
{
    return m_path;
}

std::string Project::name() const
{
    return m_name;
}

int Project::bitsPerChannel() const
{
    return m_bitsPerChannel;
}

int Project::audioSampleRate() const
{
    return m_audioSampleRate;
}

ProjectItem& Project::rootItem()
{
    return m_rootItem;
}

void Project::setName(const std::string &name)
{
    m_name = name;
}

void Project::setBitsPerChannel(int bitsPerChannel)
{
    m_bitsPerChannel = bitsPerChannel;
}

void Project::setAudioSampleRate(int audioSampleRate)
{
    m_audioSampleRate = audioSampleRate;
}

void Project::load()
{
    pugi::xml_document doc;

    if (!doc.load_file(m_path.c_str()))
    {
        // TODO: proper error handlign
        throw 0;
    }

    pugi::xml_node root = doc.document_element();

    // Get name
    pugi::xml_attribute attr;
    if ((attr = root.attribute("name")))
        m_name = attr.as_string();

    // Get other properties
    if ((attr = root.attribute("bitsPerChannel")))
        m_bitsPerChannel = attr.as_int();

    if ((attr = root.attribute("audioSampleRate")))
        m_audioSampleRate = attr.as_int();
}

void Project::save()
{
    pugi::xml_document doc;
    doc.append_child(pugi::node_declaration);

    auto proj = doc.append_child("project");
    proj.append_attribute("name").set_value(m_name.c_str());
    proj.append_attribute("bitsPerChannel").set_value(m_bitsPerChannel);
    proj.append_attribute("audioSampleRate").set_value(m_audioSampleRate);

    doc.save_file(m_path.string().c_str());
}

}