WiiFlow_Lite/source/list/cachedlist.cpp

#include "cachedlist.hpp"
#include <typeinfo>

template <class T>
void CachedList<T>::Load(string path, string containing)													/* Load All */
{
	gprintf("\nLoading files containing %s in %s\n", containing.c_str(), path.c_str());
	m_loaded = false;
	m_database = sfmt("%s/%s.db", m_cacheDir.c_str(), (make_db_name(path)).c_str());
	
	gprintf("Database file: %s\n", m_database.c_str());
	m_wbfsFS = strncasecmp(DeviceHandler::Instance()->PathToFSName(path.c_str()), "WBFS", 4) == 0;
	
	bool update_games = false;
	bool update_homebrew = false;
	if(!m_wbfsFS)
	{
		update_games = strcasestr(path.c_str(), "wbfs") != NULL && force_update[COVERFLOW_USB];
		update_homebrew = strcasestr(path.c_str(), "apps") != NULL && force_update[COVERFLOW_HOMEBREW];

		if(update_games || update_homebrew)
			remove(m_database.c_str());

		struct stat filestat, cache;
		gprintf("%s\n", path.c_str());
		if(stat(path.c_str(), &filestat) == -1) return;
		
		bool update_lang = m_lastLanguage != m_curLanguage;
		bool noDB = stat(m_database.c_str(), &cache) == -1;
		bool mtimes = filestat.st_mtime > cache.st_mtime;

		m_update = update_lang || noDB || mtimes;
		if(m_update) gprintf("Cache is being updated because %s\n", update_lang ? "languages are different!" : noDB ? "a database was not found!" : "the WBFS folder was modified!");
	}

	if(update_games) force_update[COVERFLOW_USB] = false;
	if(update_homebrew) force_update[COVERFLOW_HOMEBREW] = false;

	bool music = typeid(T) == typeid(std::string);

	if(m_update || m_wbfsFS || music)
	{
		gprintf("Calling list to update filelist\n");
		safe_vector<string> pathlist;
		list.GetPaths(pathlist, containing, path, m_wbfsFS);
		list.GetHeaders(pathlist, *this, m_settingsDir, m_curLanguage);

		path.append("/touch.db");
		FILE *file = fopen(path.c_str(), "wb");
		fclose(file);
		remove(path.c_str());
		
		if(!music && pathlist.size() > 0)
		{
			Save();
			pathlist.clear();
		}
	}
	else
		CCache<T>(*this, m_database, LOAD);

	m_lastLanguage = m_curLanguage;
	m_update = false;
	m_loaded = true;
}

template<>
void CachedList<dir_discHdr>::LoadChannels(string path, u32 channelType)													/* Load All */
{
	m_loaded = false;
	m_update = true;

	bool emu = !path.empty();
	if(emu)
	{
		m_database = sfmt("%s/%s.db", m_cacheDir.c_str(), make_db_name(sfmt("%s/emu", path.c_str())).c_str());

		size_t find = m_database.find("//");
		if(find != string::npos)
			m_database.replace(find, 2, "/");

		if(force_update[COVERFLOW_CHANNEL])
			remove(m_database.c_str());

		//gprintf("%s\n", m_database.c_str());
		struct stat filestat, cache;

		string newpath = sfmt("%s%s", path.c_str(), "title");

		if(stat(newpath.c_str(), &filestat) == -1) return;

		m_update = force_update[COVERFLOW_CHANNEL] || m_lastchannelLang != m_channelLang || stat(m_database.c_str(), &cache) == -1 || filestat.st_mtime > cache.st_mtime;
	}

	force_update[COVERFLOW_CHANNEL] = false;

	if(m_update)
	{
		list.GetChannels(*this, m_settingsDir, channelType, m_channelLang);
		
		m_loaded = true;
		m_update = false;
		m_lastchannelLang = m_channelLang;

		if(this->size() > 0 && emu) Save();
	}
	else
		CCache<dir_discHdr>(*this, m_database, LOAD);

	m_loaded = true;
}

template <class T>
string CachedList<T>::make_db_name(string path)
{
	string buffer = path;
	size_t find = buffer.find(":/");
	if(find != string::npos)
		buffer.replace(find, 2, "_");

	find = buffer.find("/");
	while(find != string::npos)
	{
		buffer[find] = '_';
		find = buffer.find("/");
	}
	return buffer;
}

template class CachedList<string>;
template class CachedList<dir_discHdr>;