/*******************************************************************************
*                         Goggles Audio Player Library                         *
********************************************************************************
*           Copyright (C) 2010-2021 by Sander Jansen. All Rights Reserved      *
*                               ---                                            *
* This program is free software: you can redistribute it and/or modify         *
* it under the terms of the GNU General Public License as published by         *
* the Free Software Foundation, either version 3 of the License, or            *
* (at your option) any later version.                                          *
*                                                                              *
* This program is distributed in the hope that it will be useful,              *
* but WITHOUT ANY WARRANTY; without even the implied warranty of               *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                *
* GNU General Public License for more details.                                 *
*                                                                              *
* You should have received a copy of the GNU General Public License            *
* along with this program.  If not, see http://www.gnu.org/licenses.           *
********************************************************************************/
#include "ap_defs.h"
#include "ap_common.h"
#include "ap_reader_plugin.h"


namespace ap {

void ap_parse_m3u(const FXString & data,FXStringList & mrl) {
  FXint start=0,end=0,next;

  for (FXint i=0;i<data.length();i++) {
    if (data[i]=='\n') {
      end=i;
      next=i+1;

      /// Skip white space
      while(start<end && Ascii::isSpace(data[start])) start++;

      /// Skip white space
      while(end>start && Ascii::isSpace(data[end])) end--;

      /// Parse the actual line.
      if ((end-start)) {
        if (data[start]!='#') {
          mrl.append(data.mid(start,1+end-start));
          }
        }
      start=next;
      }
    }
  }




class M3UReader : public TextReader {
protected:
  FXStringList uri;
public:
  M3UReader(InputContext*);
  ReadStatus process(Packet*) override;
  FXbool init(InputPlugin*) override;
  FXuchar format() const override { return Format::M3U; };
  FXbool redirect(FXStringList & u) override { u=uri; return true; }
  virtual ~M3UReader();
  };



M3UReader::M3UReader(InputContext* ctx) : TextReader(ctx) {
  }

M3UReader::~M3UReader(){
  }

FXbool M3UReader::init(InputPlugin*plugin) {
  TextReader::init(plugin);
  uri.clear();
  return true;
  }

ReadStatus M3UReader::process(Packet*packet) {
  if (TextReader::process(packet)==ReadDone) {
    ap_parse_m3u(textbuffer,uri);
    if (uri.no())
      return ReadRedirect;
    else
      return ReadDone;
    }
  return ReadError;
  }

ReaderPlugin * ap_m3u_reader(InputContext * ctx) {
  return new M3UReader(ctx);
  }
}
