#pragma once
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <string>
#include <sstream>
#include <fstream>
#include <vector>
#include <thread>
#include <iostream>
#include <cmath>
#include <algorithm>

#include <sys/types.h> 
#include <sys/wait.h>
#include <dirent.h>

#include "jsonobject.h"

namespace sequencelogic
{
	struct Range
	{
		int startPage;
		int endPage;
	};
	class OCRManager
	{
	public:
		OCRManager();
		~OCRManager();
		void RunOCR(std::string inputFile, bool isPretty, int pagesInErrorToAllow, int threadCount, bool singlePageOutput);
		void ValidateOCR();

	private:
		const std::string SLOCR_LOCATION = "/group/eng/Chris/SLOCR_MT/slocr/bin/lin64/sequencelogic-ocr";
		const std::string PAGE_COUNT_CMD = "/usr/bin/identify -format %n -quiet ";
		const std::string GHOST_SCRIPT_CMD = "gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=";
		std::vector<std::string> ocrFiles;

		std::vector<Range> splitPages(std::string inputFile, int threadCount);
		int getPageCnt(std::string inFile);
		std::string getOutputFile(std::string inputFile, int pageStart, int PageEnd);
		std::string getOutputFile(std::string inputFile);
		std::string getFRTFileName(std::string imgFile);
		std::string callOCR(std::string inputFile, bool isPretty, int pagesInErrorToAllow, int threadCount, Range range, bool singlePageOutput);
		size_t getFilesInDirectory(const std::string &dirName, std::vector<std::string> &files, const std::string filter);
		void glueFRTFiles(std::string dir, bool prettyPrint, std::string outFile);
		void glueImageFiles(int threadCount, std::string dir, std::string inFile, std::string outputFile, bool singlePageOutput);
		void getPageRange(std::string fileName, int &startPage, int &endPage);
		std::string runProgram(std::string command);
		void deleteFile(std::string fileName);
	};
}