////////////////////////////////////////////////////////////////////////////////
//
// Copyright 2006 - 2018, Paul Beckingham, Federico Hernandez.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// http://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////

#include <cmake.h>
#include <CmdCount.h>
#include <Filter.h>
#include <main.h>
#include <format.h>

////////////////////////////////////////////////////////////////////////////////
CmdCount::CmdCount ()
{
  _keyword               = "count";
  _usage                 = "task <filter> count";
  _description           = "Counts matching tasks";
  _read_only             = true;
  _displays_id           = false;
  _needs_gc              = true;
  _uses_context          = true;
  _accepts_filter        = true;
  _accepts_modifications = false;
  _accepts_miscellaneous = false;
  _category              = Command::Category::metadata;
}

////////////////////////////////////////////////////////////////////////////////
int CmdCount::execute (std::string& output)
{
  // Apply filter.
  handleUntil ();
  handleRecurrence ();
  Filter filter;
  std::vector <Task> filtered;
  filter.subset (filtered);

  // Find number of matching tasks.  Skip recurring parent tasks.
  int count = 0;
  for (const auto& task : filtered)
    if (task.getStatus () != Task::recurring)
      ++count;

  output = format (count) + '\n';
  return 0;
}

////////////////////////////////////////////////////////////////////////////////