/**
 * Marlin 3D Printer Firmware
 * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * 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 "../../inc/MarlinConfig.h"

#if HAS_PID_HEATING

#include "../gcode.h"
#include "../../module/temperature.h"

#if ENABLED(EXTENSIBLE_UI)
  #include "../../lcd/extui/ui_api.h"
#endif

/**
 * M303: PID relay autotune
 *
 *       S<temperature> sets the target temperature. (default 150C / 70C)
 *       E<extruder> (-1 for the bed) (default 0)
 *       C<cycles> Minimum 3. Default 5.
 *       U<bool> with a non-zero value will apply the result to current settings
 *       D Toggles PID_DEBUG flag. No other action happens even if more parameters are specified.
 */

#if ENABLED(PID_DEBUG)
  bool PID_Debug_Flag = 0;
#endif

void GcodeSuite::M303() {
  #if ENABLED(PIDTEMPBED)
    #define SI H_BED
  #else
    #define SI H_E0
  #endif
  #if ENABLED(PIDTEMP)
    #define EI HOTENDS - 1
  #else
    #define EI H_BED
  #endif
  const heater_ind_t e = (heater_ind_t)parser.intval('E');
  if (!WITHIN(e, SI, EI)) {
    SERIAL_ECHOLNPGM(STR_PID_BAD_EXTRUDER_NUM);
    #if ENABLED(EXTENSIBLE_UI)
      ExtUI::OnPidTuning(ExtUI::result_t::PID_BAD_EXTRUDER_NUM);
    #endif
    return;
  }

  const int c = parser.intval('C', 5);
  const bool u = parser.boolval('U');
  const int16_t temp = parser.celsiusval('S', e < 0 ? 70 : 150);

  #if ENABLED(PID_DEBUG)
    bool d = parser.boolval('D');
    if (d) {
      PID_Debug_Flag = !PID_Debug_Flag;
      SERIAL_ECHOPGM("PID Debug set to: ");
      SERIAL_ECHOLN( PID_Debug_Flag );
      return;
    }
  #endif

  #if DISABLED(BUSY_WHILE_HEATING)
    KEEPALIVE_STATE(NOT_BUSY);
  #endif

  thermalManager.PID_autotune(temp, e, c, u);
}

#endif // HAS_PID_HEATING