#include "VideoIOConfig.h"

#include <algorithm>
#include <cctype>

namespace
{
std::string NormalizeToken(std::string value)
{
	std::transform(value.begin(), value.end(), value.begin(),
		[](unsigned char ch) { return static_cast<char>(std::tolower(ch)); });
	return value;
}
}

const char* VideoIOBackendName(VideoIOBackendId backendId)
{
	switch (backendId)
	{
	case VideoIOBackendId::DeckLink:
		return "decklink";
	}
	return "unknown";
}

bool ParseVideoIOBackendId(const std::string& value, VideoIOBackendId& backendId)
{
	const std::string normalized = NormalizeToken(value);
	if (normalized.empty() || normalized == "decklink")
	{
		backendId = VideoIOBackendId::DeckLink;
		return true;
	}
	return false;
}