#pragma once
#include <iosfwd>
#include <string>
#include <cstdint>
#include <chrono>
#include "SensorDatumConcept.h"
#include "NetMessengerStreamBuffer.h"
#include "Vector.h"
#include "Quat.h"

//Written By Scott Nykl
//This is an EXAMPLE class that is designed to be copy/pasted/renamed to *YOUR SPECIFIC* sensor datum type.
//These are similar to NetMsgs w/ the to/fromStream (and even have a fromStream that extracts from a
//NetMessengerStreamBuffer.

namespace Aftr
{

   //When used to parse data or log data, All SensorDatum-esque classes must adhear to the SensorDatumConcept by
   //implementing the exact signature of the methods defined below. Keep this class as a POD (don't do fancy things
   //with any constructors).
   //It is expected that each datum uses exactly one line and terminates with a single newline \n.
   //For example:
   // 2023.Apr.14_14.25.35.3359030.UTC 1.23 2.34 3.45 1 0 0 0 0
   // 2023.Apr.14_14.25.36.3359030.UTC 6.63 7.74 8.85 0 0 0 0 1
class SensorDatum_Example
{
public:   
   //This method extracts one datum from the inputstream and returns an instance of SensorDatum_Example
   static std::expected< SensorDatum_Example, ParseError > fromStreamOneDatum( std::istream& is );
   static std::expected< SensorDatum_Example, ParseError > fromStreamOneDatum( NetMessengerStreamBuffer& is );

   //This method should terminate each datum with a single newline \n. Only insert one newline per datum (at the end).
   //This method inserts the member data of this datum into the ostream&.
   bool toStreamOneDatum( std::ostream& os ) const;

   /// Returns the string placed at the top of a log file which describes this data format in ASCII text
   /// This string should begin with a # to denote a comment that is not parsed as a datum when reading from file.
   static std::string getHeaderDescribingData();

   /// Returns the time_point associated with this datum
   std::chrono::utc_clock::time_point getTime() const { return this->time; }

   SensorDatum_Example( std::chrono::utc_clock::time_point t, Vector const& pos, Quat const& orient );
   SensorDatum_Example() = default;
   ~SensorDatum_Example() = default;


   std::chrono::utc_clock::time_point time;
   Vector pos = { 0,0,0 };
   Quat q = { 0,0,0,0 };
};

} //namespace Aftr