//----------------------------------------------------------------------
// Includes
//----------------------------------------------------------------------
#include "MantidAlgorithms/AddSampleLog.h"
#include "MantidKernel/Exception.h"
#include "MantidKernel/ListValidator.h"
#include "MantidKernel/Strings.h"
#include "MantidKernel/TimeSeriesProperty.h"
#include <string>

namespace Mantid
{
namespace Algorithms
{

// Register the algorithm into the AlgorithmFactory
DECLARE_ALGORITHM(AddSampleLog)

/// Sets documentation strings for this algorithm
void AddSampleLog::initDocs()
{
  this->setWikiSummary("Used to insert a value into the sample logs in a workspace.");
  this->setOptionalMessage("Used to insert a value into the sample logs in a workspace.");
}

using namespace Kernel;
using namespace API;

void AddSampleLog::init()
{
  declareProperty(new WorkspaceProperty<>("Workspace","",Direction::InOut),
    "Workspace to add the log entry to");
  declareProperty("LogName", "", new MandatoryValidator<std::string>,
    "The name that will identify the log entry");

  std::vector<std::string> propOptions;
  propOptions.push_back("String");
  propOptions.push_back("Number");
  propOptions.push_back("Number Series");
  declareProperty("LogType", "String",new ListValidator(propOptions),
    "The type that the log data will be."
     );

  declareProperty("LogText", "",
    "The content of the log");
}

void AddSampleLog::exec()
{
  // A pointer to the workspace to add a log to
  MatrixWorkspace_sptr wSpace = getProperty("Workspace");
  // we're going to edit the workspaces run details so get a non-const reference to it
  Run &theRun = wSpace->mutableRun();

  // get the data that the user wants to add
  std::string propName = getProperty("LogName");
  std::string propValue = getProperty("LogText");
  std::string propType = getPropertyValue("LogType");

  // Remove any existing log
  if (theRun.hasProperty(propName))
    theRun.removeLogData(propName);

  if (propType == "String")
  {
    theRun.addLogData(new PropertyWithValue<std::string>(propName, propValue));
  }
  else if (propType == "Number")
  {
    double val;
    if (!Strings::convert(propValue, val))
      throw std::invalid_argument("Error interpreting string '" + propValue + "' as a number.");
    theRun.addLogData(new PropertyWithValue<double>(propName, val));
  }
  else if (propType == "Number Series")
  {
    double val;
    if (!Strings::convert(propValue, val))
      throw std::invalid_argument("Error interpreting string '" + propValue + "' as a number.");
    Kernel::DateAndTime now = Kernel::DateAndTime::get_current_time();
    TimeSeriesProperty<double> * tsp = new TimeSeriesProperty<double>(propName);
    tsp->addValue(now, val);
    theRun.addLogData(tsp);
  }

  setProperty("Workspace", wSpace);
}

} // namespace Algorithms
} // namespace Mantid