#include <TApplication.h>
#include <TGClient.h>
#include <TSystem.h>
#include <TCanvas.h>
#include <TF1.h>
#include <TRandom.h>
#include <TRootEmbeddedCanvas.h>
#include <TGTableContainer.h>
#include <TGFileDialog.h>

#include <fstream>
#include <iostream>
#include <sys/stat.h>
#include <experimental/filesystem>

#include "programSetting.h"

namespace fs = std::experimental::filesystem;

std::string ProgramSetting::databaseIP = "https://fsunuc.physics.fsu.edu/influx/";
std::string ProgramSetting::databaseName = "testing";
std::string ProgramSetting::DataSavingPath = "/home/catrina/FSUDAQ";
std::string ProgramSetting::ExpName = "Test";
std::string ProgramSetting::ElogIP = "128.186.111.127";

bool ProgramSetting::EnableElog = true;
bool ProgramSetting::EnableDatabase = true;

/// fixed program things
const std::string ProgramSetting::settingFileName = "FSUDAQ.sh";
const std::string ProgramSetting::programPath = "~/FSUDAQ/";

///this is declared at FSUDAQ.cpp
extern unsigned short lastRunID;
extern unsigned short nDigi;
extern Digitizer ** digi;

ProgramSetting::ProgramSetting(const TGWindow *p){
  
  printf("----- %s \n", __func__);
  
  fMain = new TGMainFrame(p, 600, 400);
  fMain->SetWindowName("Program Setting");
  fMain->Connect("CloseWindow()", "ProgramSetting", this, "CloseWindow()");
  
  TGLayoutHints * haha = new TGLayoutHints(kLHintsRight | kLHintsCenterY, 5,5,5,2);
  TGLayoutHints * kaka = new TGLayoutHints(kLHintsLeft  | kLHintsCenterY, 5,5,0,0);
  
  TGVerticalFrame * vframe = new TGVerticalFrame(fMain); fMain->AddFrame(vframe); 
  
  {///============== Data Saving Path
    TGGroupFrame *  gfData = new TGGroupFrame(vframe, "Data Storage", kHorizontalFrame); vframe->AddFrame(gfData, new TGLayoutHints(kLHintsNormal, 5, 5, 5, 5));  
    
    TGHorizontalFrame * hfData = new TGHorizontalFrame(gfData); gfData->AddFrame(hfData, new TGLayoutHints(kLHintsNormal, 0, 0, 5, 0));    
    
    TGVerticalFrame * vfLabel = new TGVerticalFrame(hfData, 200); hfData->AddFrame(vfLabel );
    TGVerticalFrame * vfTxt = new TGVerticalFrame(hfData); hfData->AddFrame(vfTxt);
    TGVerticalFrame * vfAux = new TGVerticalFrame(hfData); hfData->AddFrame(vfAux);

    TGLabel * lbExpName = new TGLabel(vfLabel, "ExpName :"); vfLabel->AddFrame(lbExpName, haha);
    TGLabel * lbDataPath = new TGLabel(vfLabel, "Data Absolute Path :"); vfLabel->AddFrame(lbDataPath, haha);

    txtExpName = new TGTextEntry(vfTxt, ExpName.c_str()); vfTxt->AddFrame(txtExpName, kaka);
    txtExpName->Connect("ReturnPressed()", "ProgramSetting", this, "SetSetting()");
    txtExpName->Resize(300, 20);    
    
    txtDataPath = new TGTextEntry(vfTxt, DataSavingPath.c_str()); vfTxt->AddFrame(txtDataPath, kaka);
    txtDataPath->Connect("ReturnPressed()", "ProgramSetting", this, "SetSetting()");
    txtDataPath->Resize(300, 20);
    
    
    TGLabel * lbdummy0 = new TGLabel(vfAux, "");  vfAux->AddFrame(lbdummy0, haha);
    
    TGTextButton * bSetFolder = new TGTextButton(vfAux, "Set Folder"); vfAux->AddFrame(bSetFolder, kaka);
    bSetFolder->Connect("Clicked()", "ProgramSetting", this, "SetFolder()");
    
  }

  {///============== Database & Elog
    TGGroupFrame *  gfDatabase = new TGGroupFrame(vframe, "Database & Elog Setting", kHorizontalFrame); vframe->AddFrame(gfDatabase, new TGLayoutHints(kLHintsExpandX, 5, 5, 5, 5));  
    
    TGHorizontalFrame * hfDB1 = new TGHorizontalFrame(gfDatabase); gfDatabase->AddFrame(hfDB1, new TGLayoutHints(kLHintsNormal, 0, 0, 5, 0));    
    
    TGVerticalFrame * vfLabel = new TGVerticalFrame(hfDB1, 200); hfDB1->AddFrame(vfLabel);
    TGVerticalFrame * vfTxt = new TGVerticalFrame(hfDB1); hfDB1->AddFrame(vfTxt);
    TGVerticalFrame * vfOnOff = new TGVerticalFrame(hfDB1); hfDB1->AddFrame(vfOnOff);

    TGLabel * lbIP = new TGLabel(vfLabel, "DB IP :"); vfLabel->AddFrame(lbIP, haha);
    TGLabel * lbDBName = new TGLabel(vfLabel, "DB Name :"); vfLabel->AddFrame(lbDBName, haha);
    TGLabel * lbElogIP = new TGLabel(vfLabel, "Elog IP :"); vfLabel->AddFrame(lbElogIP, haha);

    txtIP = new TGTextEntry(vfTxt, databaseIP.c_str()); vfTxt->AddFrame(txtIP, kaka);
    txtIP->Resize(300, 20);
    txtIP->Connect("ReturnPressed()", "ProgramSetting", this, "SetSetting()");

    txtDBName = new TGTextEntry(vfTxt, databaseName.c_str()); vfTxt->AddFrame(txtDBName, kaka);
    txtDBName->Resize(300, 20);
    txtDBName->Connect("ReturnPressed()", "ProgramSetting", this, "SetSetting()");

    txtElogIP = new TGTextEntry(vfTxt, ElogIP.c_str()); vfTxt->AddFrame(txtElogIP, kaka);
    txtElogIP->Resize(300, 20);
    txtElogIP->Connect("ReturnPressed()", "ProgramSetting", this, "SetSetting()");
    
    TGLabel * lbdummy0 = new TGLabel(vfOnOff, "");  vfOnOff->AddFrame(lbdummy0, haha);

    cbDatabase = new TGCheckButton(vfOnOff, "Enable Database", 1); vfOnOff->AddFrame(cbDatabase, kaka);
    if( ProgramSetting::EnableDatabase ){
      cbDatabase->SetState(kButtonDown);
    }else{
      cbDatabase->SetState(kButtonUp);
    }
    cbDatabase->Connect("Clicked()", "ProgramSetting", this, "SetDataBaseElogOnOff()");

    cbElog = new TGCheckButton(vfOnOff, "Enable Elog", 1); vfOnOff->AddFrame(cbElog, kaka);
    if( ProgramSetting::EnableElog ){
      cbElog->SetState(kButtonDown);
    }else{
      cbElog->SetState(kButtonUp);
    }
    cbElog->Connect("Clicked()", "ProgramSetting", this, "SetDataBaseElogOnOff()");
    
  }
  
  {///============== Read Time event building
    
    
  }
  
  fMain->MapSubwindows();
  fMain->Resize(fMain->GetDefaultSize());
  fMain->MapWindow();
}

ProgramSetting::~ProgramSetting(){
  
  printf("----- %s \n", __func__);
  
  delete txtIP;
  delete txtDBName;
  delete txtDataPath;
  delete txtExpName;
  delete txtElogIP;
  
  delete cbDatabase;
  delete cbElog;

  fMain->Cleanup();
  delete fMain;
}

void ProgramSetting::SetSetting(){
  
  DataSavingPath = txtDataPath->GetText();
  ExpName = txtExpName->GetText();

  databaseIP = txtIP->GetText();
  databaseName = txtDBName->GetText();
  
  ElogIP = txtElogIP->GetText();

  PrintSettings();
  
  SaveProgramSetting();
  
  gSystem->mkdir(( ProgramSetting::DataSavingPath + "/data").c_str());
  gSystem->mkdir(( ProgramSetting::DataSavingPath + "/settings").c_str());
  
  ///save digitizer settings to the settings folder
  for( int i = 0; i < nDigi; i ++){
    digi[i]->OpenSettingBinary(ProgramSetting::DataSavingPath + "/settings/setting_" + std::to_string(digi[i]->GetSerialNumber()) + ".bin");
  }
  
  Emit("SetSetting()");
  
}

void ProgramSetting::SetFolder(){
  
  const char *filetypes[] = { "All Files", "*.*", 0,               0 };
  
  TGFileInfo fi;
  fi.fFileTypes = filetypes;
  fi.SetIniDir(".");
  printf("fIniDir = %s\n", fi.fIniDir);
  new TGFileDialog(gClient->GetRoot(), fMain, kDOpen, &fi);
  printf("Open file: %s (dir: %s)\n", fi.fFilename, fi.fIniDir);
  
  if( fi.fFilename == NULL) return;
  
  txtDataPath->SetText(fi.fFilename, false);
  
  SetSetting();
  
}

void ProgramSetting::PrintSettings(){
  
  printf("Data Saving Path : %s\n", DataSavingPath.c_str());
  printf("         ExpName : %s\n", ExpName.c_str());  
  printf("              IP : %s\n", databaseIP.c_str());
  printf("            Name : %s\n", databaseName.c_str());
  printf("         Elog IP : %s\n", ElogIP.c_str());
  printf("     last run ID : %d\n", lastRunID);
  
}

void ProgramSetting::LoadProgramSetting(){
  
  std::ifstream fileIn;
  fileIn.open(ProgramSetting::settingFileName.c_str(), std::ios::in);
  
  if( fileIn ){    
    std::string line;
    int lineNum = 0;
    size_t pos = 0;
    while (fileIn.good() ){
      std::getline(fileIn, line);
      lineNum ++;
      pos = line.find("=");
      if( pos > 1 ){
        pos += 1;
        ///printf("%d | %s , %d \n", lineNum, line.c_str(), pos);
        switch ( lineNum ){
          case 1: ProgramSetting::ExpName = line.substr(pos); break;
          case 2: ProgramSetting::DataSavingPath = line.substr(pos); break;
          case 3: ProgramSetting::databaseIP = line.substr(pos); break;
          case 4: ProgramSetting::databaseName = line.substr(pos); break;
          case 5: ProgramSetting::ElogIP = line.substr(pos); break;
          case 6: lastRunID = std::atoi(line.substr(pos).c_str()); break;
        }
      }
    }
    
    fileIn.close();
  }else{
    printf("%s | Cannot open file : %s.\n", __func__, ProgramSetting::settingFileName.c_str()); 
    printf("Creating One with default setting");
    SaveProgramSetting();
  }
  
  PrintSettings();
}

void ProgramSetting::SaveProgramSetting(){
  
  printf("+++++++ %s \n", __func__);
  
  std::string filePath =  ProgramSetting::settingFileName;
  
  FILE * fileOut = fopen(filePath.c_str(), "w");
  if( fileOut != NULL ){
    
    fputs( ("ExpName=" + ProgramSetting::ExpName + "\n").c_str(), fileOut);
    fputs( ("DataPath=" + ProgramSetting::DataSavingPath + "\n").c_str(), fileOut);
    fputs( ("DatabaseIP=" + ProgramSetting::databaseIP + "\n").c_str(), fileOut);
    fputs( ("DatabaseName=" + ProgramSetting::databaseName + "\n").c_str(), fileOut);
    fputs( ("ElogIP=" + ProgramSetting::ElogIP + "\n").c_str(), fileOut);
    fputs( ("lastRunID=" + std::to_string(lastRunID) + "\n").c_str(), fileOut);
    
    fclose(fileOut);
    
    gSystem->CopyFile(ProgramSetting::settingFileName.c_str(), (ProgramSetting::DataSavingPath + "/FSUDAQ.sh").c_str(), true); /// overwrite
    
  }else{
    printf("%s | Cannot open file : %s.\n", __func__, filePath.c_str()); 
  }

}

void ProgramSetting::SetDataBaseElogOnOff(){
  
  EnableDatabase =  ( cbDatabase->GetState() == kButtonDown ? true : false );
  EnableElog     =  ( cbElog->GetState() == kButtonDown ? true : false );
  
}