/*
 * This file is part of the "bluetoothheater" distribution 
 * (https://gitlab.com/mrjones.id.au/bluetoothheater) 
 *
 * Copyright (C) 2018  Ray Jones <ray@mrjones.id.au>
 * 
 * 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 <https://www.gnu.org/licenses/>.
 * 
 */


///////////////////////////////////////////////////////////////////////////
//
// CSettingsScreen
//
// This screen allows the fuel mixture endpoints to be adjusted
//
///////////////////////////////////////////////////////////////////////////

#include "SettingsScreen.h"
#include "KeyPad.h"
#include "../Utility/helpers.h"
#include "../Wifi/BTCWifi.h"
#include "../Utility/macros.h"
#include "../Protocol/Protocol.h"

static const int Line3 = 20;       // system voltage
static const int Line2 = 30;       // fan sensor
static const int Line1 = 40;       // plug drive
static const int Column = 98;

static const int plugPowers[] = { 35, 40, 45, 80, 85, 90};

CSettingsScreen::CSettingsScreen(C128x64_OLED& display, CScreenManager& mgr) : CPasswordScreen(display, mgr) 
{
  _initUI();
}

void 
CSettingsScreen::onSelect()
{
  // ensure standard entry to screen - especially after a dimming timeout
  CPasswordScreen::onSelect();
  _initUI();
}

void 
CSettingsScreen::_initUI()
{
  // ensure standard entry to screen - especially after a dimming timeout
  _animateCount = 0;
}

bool 
CSettingsScreen::show()
{
  char str[16];
  
  CScreenHeader::show();

  _display.writeFillRect(0, 16, 96, 12, WHITE);
  _printInverted(3, 18, "Heater Settings", true);

  if(!CPasswordScreen::show()) {

    sprintf(str, "%.0fV", getHeaterInfo().getSystemVoltage());
    _printMenuText(_display.width(), Line3, str, false, eRightJustify);

    sprintf(str, "Min: %.1f/%d", getHeaterInfo().getPump_Min(), getHeaterInfo().getFan_Min());
    _printMenuText(0, Line2, str);

    sprintf(str, "Max: %.1f/%d", getHeaterInfo().getPump_Max(), getHeaterInfo().getFan_Max());
    _printMenuText(0, Line1, str);

    int yPos = 53;
    int xPos = _display.xCentre();
    _printMenuText(xPos, yPos, " \021  \030Edit   \031\352T   \020 ", true, eCentreJustify);
  }
  
  return true;
}

bool 
CSettingsScreen::animate()
{ 
  if(CScreen::animate())
    return true;

  char msg[16];

  if(isPasswordBusy()) {  // Password screen activity
    _printMenuText(Column, Line1, "    ");
    _printMenuText(Column, Line2, "    ");
  }
  else {
    _animateCount++;
    WRAPUPPERLIMIT(_animateCount, 9, 0);

    int glowDrive = getHeaterInfo().getGlow_Drive();
    _printMenuText(Column, Line1, "     ");
    if(_animateCount < 4) {
      sprintf(msg, "PF-%d", glowDrive);
      _printMenuText(Column+6, Line1, msg);
    }
    else {
      sprintf(msg, "(%dW)", plugPowers[glowDrive-1]);
      _printMenuText(Column, Line1, msg);
    }

    int fanSensor = getHeaterInfo().getFan_Sensor();
    if(_animateCount < 4) {
      sprintf(msg, "SN-%d", fanSensor);
      _printMenuText(Column+6, Line2, msg);
    }
    else {
      int xPos = Column+6;
      _printMenuText(xPos, Line2, "    "); // erase
      sprintf(msg, "(\365%d)", fanSensor);   // \365 is division character
      _printMenuText(xPos, Line2, msg);
    }

  }
  return true;
}

bool 
CSettingsScreen::keyHandler(uint8_t event)
{
  if(CPasswordScreen::keyHandler(event)) {
    if(_isPasswordOK()) {
      _ScreenManager.selectMenu(CScreenManager::TuningMenuLoop);
    }
  }

  else {

    if(event & keyPressed) {
      // press LEFT 
      if(event & key_Left) {
        _ScreenManager.prevMenu(); 
      }
      // press RIGHT 
      if(event & key_Right) {
        _ScreenManager.nextMenu(); 
      }
      // press UP 
      if(event & (key_Up | key_Centre)) {
        if(hasOEMcontroller()) {
          if(event & key_Centre)
            _reqOEMWarning();
          else {
            _ScreenManager.selectMenu(CScreenManager::BranchMenu, CScreenManager::InheritSettingsUI);
          }
        }
        else {
          _getPassword();
        }
      }
      // press DOWN
      if(event & key_Down) {
//        _ScreenManager.selectMenu(CScreenManager::BranchMenu, CScreenManager::ExperimentalUI);
        _ScreenManager.selectMenu(CScreenManager::UserSettingsLoop, CScreenManager::ExThermostatUI);
      }
      // THREE FINGER SALUTE!
      if((event & (key_Left|key_Right|key_Centre)) == (key_Left|key_Right|key_Centre)) {
        for(;;);  // force watchdog reboot!
      }
    }
  }
  _ScreenManager.reqUpdate();
  return true;
}