#include <sys/stat.h>

#include <fstream>
#include <ios>

#include "log.h"
#include "public.h"

// gets the number of lines in a file. returns -1 if there was an error.
int
linesInFile(string path)
{
	ifstream file(path);
	if (!file) {
		return 1;
	} else {
		int lineNum = 0;
		string line;

		int num = 0;
		while (getline(file, line))
			num++;
		return num;
	}
}

// appends a line of text to the end of a given file. returns 0 if the file
// existed, 1 if it didn't work
int
writeToFile(string path, string line, bool incLineNum)
{
	ofstream file;
	struct stat s;

	/*
	 * It APPEARS this fixes our problem where the program has to be run twice to work correctly.
	 */
	if (stat(path.c_str(), &s) != 0) {
		file.open(path, ios_base::out);
		file << "SYSTEM: No log file found. Created a new one." << endl;
		file.close();
		linePos += 5; /* This seems to be what actually fixes everything. Not sure. */
	}

	file.open(path, ios_base::app);

	if (file.is_open()) {
		file << line << endl;
		file.close();
		//linePos++ // We might also want this here at some point?
		return 0;
	} else {
		// do something if it didn't work
		return 1; // i guess that's good enough for now
	}
}