#include "FileReader.h"
#include "File.h"

File & FileReader::open(const std::string url) {
	File * reader = find_reader(url)->clone();
	reader->open(url);
	return *reader;
}

void FileReader::assign(const std::string type, const File * node) {
	static FactoryMap & map = get_map();
	map[type] = node;
}

FactoryMap & FileReader::get_map() {
	static FactoryMap map;
	return map;
}

const File * FileReader::find_reader(const std::string type) {
	static FactoryMap & map = get_map();

	// try to find protocol by prefix
	for (auto item : map) {
		if (!type.starts_with(item.first)) continue;
		return item.second;
	}

	// fallback is local file
	return map.find("file://")->second;
}