#include "MetaData.h"
#include "components/TextComponent.h"
#include "Log.h"
#include "Util.h"

namespace fs = boost::filesystem;

MetaDataDecl gameDecls[] = { 
	// key,			type,					default,			statistic,	name in GuiMetaDataEd,	prompt in GuiMetaDataEd
	{"name",		MD_STRING,				"", 				false,		"name",					"enter game name"}, 
	{"desc",		MD_MULTILINE_STRING,	"", 				false,		"description",			"enter description"},
	{"image",		MD_PATH,				"", 				false,		"image",				"enter path to image"},
	{"video",		MD_PATH		,			"", 				false,		"video",				"enter path to video"},
	{"marquee",		MD_PATH,				"", 				false,		"marquee",				"enter path to marquee"},
	{"thumbnail",	MD_PATH,				"", 				false,		"thumbnail",			"enter path to thumbnail"},
	{"rating",		MD_RATING,				"0.000000", 		false,		"rating",				"enter rating"},
	{"releasedate", MD_DATE,				"not-a-date-time", 	false,		"release date",			"enter release date"},
	{"developer",	MD_STRING,				"unknown",			false,		"developer",			"enter game developer"},
	{"publisher",	MD_STRING,				"unknown",			false,		"publisher",			"enter game publisher"},
	{"genre",		MD_STRING,				"unknown",			false,		"genre",				"enter game genre"},
	{"players",		MD_INT,					"1",				false,		"players",				"enter number of players"},
	{"playcount",	MD_INT,					"0",				true,		"play count",			"enter number of times played"},
	{"lastplayed",	MD_TIME,				"0", 				true,		"last played",			"enter last played date"}
};
const std::vector<MetaDataDecl> gameMDD(gameDecls, gameDecls + sizeof(gameDecls) / sizeof(gameDecls[0]));

MetaDataDecl folderDecls[] = { 
	{"name",		MD_STRING,				"", 	false}, 
	{"desc",		MD_MULTILINE_STRING,	"", 	false},
	{"image",		MD_PATH,				"", 	false},
	{"thumbnail",	MD_PATH,				"", 	false},
};
const std::vector<MetaDataDecl> folderMDD(folderDecls, folderDecls + sizeof(folderDecls) / sizeof(folderDecls[0]));

const std::vector<MetaDataDecl>& getMDDByType(MetaDataListType type)
{
	switch(type)
	{
	case GAME_METADATA:
		return gameMDD;
	case FOLDER_METADATA:
		return folderMDD;
	}

	LOG(LogError) << "Invalid MDD type";
	return gameMDD;
}



MetaDataList::MetaDataList(MetaDataListType type)
	: mType(type)
{
	const std::vector<MetaDataDecl>& mdd = getMDD();
	for(auto iter = mdd.begin(); iter != mdd.end(); iter++)
		set(iter->key, iter->defaultValue);
}


MetaDataList MetaDataList::createFromXML(MetaDataListType type, pugi::xml_node node, const fs::path& relativeTo)
{
	MetaDataList mdl(type);

	const std::vector<MetaDataDecl>& mdd = mdl.getMDD();

	for(auto iter = mdd.begin(); iter != mdd.end(); iter++)
	{
		pugi::xml_node md = node.child(iter->key.c_str());
		if(md)
		{
			// if it's a path, resolve relative paths
			std::string value = md.text().get();
			if (iter->type == MD_PATH)
			{
				value = resolvePath(value, relativeTo, true).generic_string();
			}
			mdl.set(iter->key, value);
		}else{
			mdl.set(iter->key, iter->defaultValue);
		}
	}

	return mdl;
}

void MetaDataList::appendToXML(pugi::xml_node parent, bool ignoreDefaults, const fs::path& relativeTo) const
{
	const std::vector<MetaDataDecl>& mdd = getMDD();

	for(auto mddIter = mdd.begin(); mddIter != mdd.end(); mddIter++)
	{
		auto mapIter = mMap.find(mddIter->key);
		if(mapIter != mMap.end())
		{
			// we have this value!
			// if it's just the default (and we ignore defaults), don't write it
			if(ignoreDefaults && mapIter->second == mddIter->defaultValue)
				continue;
			
			// try and make paths relative if we can
			std::string value = mapIter->second;
			if (mddIter->type == MD_PATH)
				value = makeRelativePath(value, relativeTo, true).generic_string();

			parent.append_child(mapIter->first.c_str()).text().set(value.c_str());
		}
	}
}

void MetaDataList::set(const std::string& key, const std::string& value)
{
	mMap[key] = value;
}

void MetaDataList::setTime(const std::string& key, const boost::posix_time::ptime& time)
{
	mMap[key] = boost::posix_time::to_iso_string(time);
}

const std::string& MetaDataList::get(const std::string& key) const
{
	return mMap.at(key);
}

int MetaDataList::getInt(const std::string& key) const
{
	return atoi(get(key).c_str());
}

float MetaDataList::getFloat(const std::string& key) const
{
	return (float)atof(get(key).c_str());
}

boost::posix_time::ptime MetaDataList::getTime(const std::string& key) const
{
	return string_to_ptime(get(key), "%Y%m%dT%H%M%S%F%q");
}

bool MetaDataList::isDefault()
{
	for (int i = 1; i < mMap.size(); i++) {
		if (mMap.at(gameDecls[i].key) != gameDecls[i].defaultValue) return false;
	}

	return true;
}