//===========================================
//  Lumina-DE source code
//  Copyright (c) 2013, Ken Moore
//  Available under the 3-clause BSD license
//  See the LICENSE file for full details
//===========================================
#include "LuminaUtils.h"

int LUtils::runCmd(QString cmd, QStringList args){
  QProcess *proc = new QProcess;
  proc->setProcessChannelMode(QProcess::MergedChannels);
  if(args.isEmpty()){
    proc->start(cmd);
  }else{
    proc->start(cmd, args);
  }
  while(!proc->waitForFinished(300)){
    QCoreApplication::processEvents();
  }
  int ret = proc->exitCode();
  delete proc;
  return ret;
	
}

QStringList LUtils::getCmdOutput(QString cmd, QStringList args){
  QProcess *proc = new QProcess;
  proc->setProcessChannelMode(QProcess::MergedChannels);
  if(args.isEmpty()){
    proc->start(cmd);
  }else{
    proc->start(cmd,args);	  
  }
  while(!proc->waitForFinished(300)){
    QCoreApplication::processEvents();
  }
  QStringList out = QString(proc->readAllStandardOutput()).split("\n");
  delete proc;
  return out;	
}

QStringList LUtils::readFile(QString filepath){
  QStringList out;
  QFile file(filepath);
  if(file.open(QIODevice::Text | QIODevice::ReadOnly)){
    QTextStream in(&file);
    while(!in.atEnd()){
      out << in.readLine();
    }
    file.close();
  }
  return out;
}

bool LUtils::writeFile(QString filepath, QStringList contents, bool overwrite){
  QFile file(filepath);
  QFile::OpenMode mode = overwrite ? (QIODevice::WriteOnly | QIODevice::Text | QIODevice::Truncate) : (QIODevice::WriteOnly | QIODevice::Text);
  bool ok = false;
  if(file.open( mode ) ){
    QTextStream out(&file);
    out << contents.join("\n");
    file.close();
    ok = true;
  }
  return ok;
}

bool LUtils::isValidBinary(QString bin){
  if(!bin.startsWith("/")){
    //Relative path: search for it on the current "PATH" settings
    QStringList paths = QString(qgetenv("PATH")).split(":");
    for(int i=0; i<paths.length(); i++){
      if(QFile::exists(paths[i]+"/"+bin)){ bin = paths[i]+"/"+bin; break;}	    
    }
  }
  //bin should be the full path by now
  if(!bin.startsWith("/")){ return false; }
  QFileInfo info(bin);
  return (info.exists() && info.isExecutable());
}