Recursively gets files from a certain directory.

IterDirectory.cpp

/// <summary>Recursively gets files from a certain directory.</summary>
/// <remarks>These files can be filtered by if they end with certain file extensions.</remarks>
/// <param name="directory">Path to the directory to get the files from</param>
/// <param name="extensions">List of file extensions to filter by</param>
/// <param name="depth">Current folder depth</param>
/// <param name="maxDepth">Max folder depth to iterate through</param>
/// <returns>The files from a certain directory</returns>
std::vector<std::filesystem::path> PremierSuite::IterateDirectory(const std::filesystem::path& directory,
	const std::vector<std::string>& extensions,
	const int depth, const int maxDepth) {
	if (depth > maxDepth) {
		return std::vector<std::filesystem::path>();
	}

	std::vector<std::filesystem::path> files;
	for (const std::filesystem::directory_entry& file : std::filesystem::directory_iterator(directory)) {
		const std::filesystem::path& filePath = file.path();
		if (file.is_directory()) {
			std::vector<std::filesystem::path> directoryFiles = IterateDirectory(
				filePath, extensions, depth + 1, maxDepth);
			// Remove if directory is empty.
			if (!directoryFiles.empty()) {
				files.insert(files.end(), directoryFiles.begin(), directoryFiles.end());
			}
		}
		else if (HasExtension(filePath.extension().string(), extensions)) {
			files.push_back(filePath);
		}
	}

	return files;
}