#include <fxos/log.h>
#include <iostream>
#include <map>

namespace FxOS::Log {

/* Currently configured log level */
static int loglevel = LEVEL_WRN;
/* Level of the last message */
static int lastlevel = -1;

/* Prefixes for each level */
static std::map<int,std::string> prefixes = {
	{ LEVEL_WRN, "warning: " },
	{ LEVEL_ERR, "error: " },
};

/* Select the log level */
void log_setminlevel(int level)
{
	loglevel = level;
}

/* Get the minimum log level */
int log_getminlevel()
{
	return loglevel;
}

/* General message logger */
void logmsg(int level, char const *function, std::string message)
{
	if(level < loglevel) return;

	bool endline = true;
	bool prefix = true;

	/* Add a newline if last line was unfinished, but level changed */
	if(lastlevel >= 0 && lastlevel != level) std::cerr << '\n';
	else if(lastlevel >= 0) prefix = false;

	if(message.size() && message.back() == '\\')
	{
		endline = false;
		message.pop_back();
	}

	if(prefix)
	{
		if(level == LEVEL_LOG) std::cerr << "[" << function << "] ";
		std::cerr << prefixes[level];
	}
	else std::cerr << " ";

	std::cerr << message;

	lastlevel = -1;
	if(endline) std::cerr << '\n';
	else lastlevel = level;
}

} /* namespace FxOS::Log */