#pragma once

#ifndef file_handler_h
#define file_handler_h

#include "GaussFit.h"
#include <TH1F.h>

using std::string;
using std::to_string;

class FileHandler {
public:
    FileHandler();
    FileHandler(string, int n_ = 6, int thMin_ = 800, int thMax_ = 4000);
    ~FileHandler();

public:
    int n = 6, m = 8;
    int thMin, thMax, pX;
    string file;
    double adcValue[6][8][2];
    TH1F Left[6][8];
    TH1F Right[6][8];

public:
    double getADC(TH1F hist);
    void solve();
    void save();
    void save(string);

private:
    void init();
};

FileHandler::FileHandler() {}

FileHandler::FileHandler(string file_, int n_, int thMin_, int thMax_) {
    file = file_;
    n = n_;
    thMin = thMin_;
    thMax = thMax_;
}

FileHandler::~FileHandler() {}

void FileHandler::init() {
    string L, R;
    for (int i = 0; i < n; i++)
        for (int j = 0; j < m; j++) {
            L = "Left" + to_string(i) + to_string(j);
            R = "Right" + to_string(i) + to_string(j);
            Left[i][j] = TH1F(L.c_str(), L.c_str(), CHANNEL_NUMBER, 0, CHANNEL_NUMBER);
            Right[i][j] = TH1F(R.c_str(), R.c_str(), CHANNEL_NUMBER, 0, CHANNEL_NUMBER);
        }
}

double FileHandler::getADC(TH1F hist) {
    int n, cnt = 0;
    double *parma = new double[3];
    GaussFit GF = GaussFit();
    for (int k = 10; k < CHANNEL_NUMBER; k++) {
        n = hist.GetBinContent(k);
        if (n == 0) continue;
        GF.addData(hist.GetBinCenter(k), n);
    }
    parma = GF.fit();
    if (DEBUG) GF.draw();

    return parma[1];
}

void FileHandler::solve() {
    init();
    readROOTData(file.c_str(), Left, Right, n, m, thMin, thMax);
    if (DEBUG)
        std::cout << getADC(Left[3][2]) << std::endl;
    else
        for (int i = 0; i < n; i++)
            for (int j = 0; j < m; j++) {
                adcValue[i][j][0] = getADC(Left[i][j]);
                adcValue[i][j][1] = getADC(Right[i][j]);
            }
}

void FileHandler::save() {
    string path = rmString(file, ".root") + ".csv";
    save(path);
}

void FileHandler::save(string path) {
    std::ofstream ofs(path);

    ofs << "pX,X4,Bind,Left,Right" << std::endl;
    for (int i = 0; i < n; i++)
        for (int j = 0; j < m; j++)
            ofs << pX << "," << i << "," << j << "," << adcValue[i][j][0] << ","
                << adcValue[i][j][1] << std::endl;
}

#endif