#include <PIF.hpp>
#include <PIF/MupenMovie.hpp>
#include <Netplay.hpp>
#include <log.hpp>

namespace n64 {
void PIF::InitDevices(SaveType saveType) {
  joybusDevices[0].type = JOYBUS_CONTROLLER;
  joybusDevices[0].accessoryType = ACCESSORY_MEMPACK;
  for (int i = 1; i < 4; i++) { //TODO: make this configurable
    joybusDevices[i].type = JOYBUS_NONE;
    joybusDevices[i].accessoryType = ACCESSORY_NONE;
  }

  if (saveType == SAVE_EEPROM_4k) {
    joybusDevices[4].type = JOYBUS_4KB_EEPROM;
  } else if (saveType == SAVE_EEPROM_16k) {
    joybusDevices[4].type = JOYBUS_16KB_EEPROM;
  } else {
    joybusDevices[4].type = JOYBUS_NONE;
  }
  joybusDevices[5].type = JOYBUS_NONE;
}

void PIF::ControllerID(u8 *res) const {
  if (channel < 6) {
    switch (joybusDevices[channel].type) {
      case JOYBUS_NONE:
        res[0] = 0x00;
        res[1] = 0x00;
        res[2] = 0x00;
        break;
      case JOYBUS_CONTROLLER:
        res[0] = 0x05;
        res[1] = 0x00;
        res[2] = joybusDevices[channel].accessoryType != ACCESSORY_NONE ? 0x01 : 0x02;
        break;
      case JOYBUS_DANCEPAD:
        res[0] = 0x05;
        res[1] = 0x00;
        res[2] = 0x00;
        break;
      case JOYBUS_VRU:
        res[0] = 0x00;
        res[1] = 0x01;
        res[2] = 0x00;
        break;
      case JOYBUS_MOUSE:
        res[0] = 0x02;
        res[1] = 0x00;
        res[2] = 0x00;
        break;
      case JOYBUS_RANDNET_KEYBOARD:
        res[0] = 0x00;
        res[1] = 0x02;
        res[2] = 0x00;
        break;
      case JOYBUS_DENSHA_DE_GO:
        res[0] = 0x20;
        res[1] = 0x04;
        res[2] = 0x00;
        break;
      case JOYBUS_4KB_EEPROM:
        res[0] = 0x00;
        res[1] = 0x80;
        res[2] = 0x00;
        break;
      case JOYBUS_16KB_EEPROM:
        res[0] = 0x00;
        res[1] = 0xC0;
        res[2] = 0x00;
        break;
    }
  } else {
    Util::panic("Device ID on unknown channel {}", channel);
  }
}

bool PIF::ReadButtons(u8* res) {
  if(channel >= 6) {
    res[0] = 0;
    res[1] = 0;
    res[2] = 0;
    res[3] = 0;
    return false;
  }

  switch (joybusDevices[channel].type) {
    case JOYBUS_NONE:
      res[0]  = 0x00;
      res[1]  = 0x00;
      res[2]  = 0x00;
      res[3]  = 0x00;
      return false; // Device not present
    case JOYBUS_4KB_EEPROM:
    case JOYBUS_16KB_EEPROM:
    case JOYBUS_CONTROLLER:
      if (movie.IsLoaded()) {
        Controller controller = movie.NextInputs();
        res[0] = controller.byte1;
        res[1] = controller.byte2;
        res[2] = controller.joyX;
        res[3] = controller.joyY;
      } else {
        res[0] = joybusDevices[channel].controller.byte1;
        res[1] = joybusDevices[channel].controller.byte2;
        res[2] = joybusDevices[channel].controller.joyX;
        res[3] = joybusDevices[channel].controller.joyY;
      }
      return true;
    case JOYBUS_DANCEPAD:
    case JOYBUS_VRU:
    case JOYBUS_MOUSE:
    case JOYBUS_RANDNET_KEYBOARD:
    case JOYBUS_DENSHA_DE_GO:
      return false;
  }

  return true;
}
}