#include "webui.h"

AsyncWebServer webServer(80);

const char *PARAM_MESSAGE = "message";

String processor(const String &var);
void WebserverPOST_Callback(AsyncWebServerRequest *request);
void WebserverNotFound_Callback(AsyncWebServerRequest *request);
void Webserver_Callback(AsyncWebServerRequest *request);

void initWebUI()
{
  if (!LittleFS.begin())
  {
    Serial.println("An Error has occurred while mounting LittleFS");
    return;
  }

  webServer.serveStatic("/static/", LittleFS, "/static/");
  webServer.onNotFound(WebserverNotFound_Callback);
  webServer.on("/index.htm", HTTP_GET, Webserver_Callback);
  webServer.on("/", HTTP_POST, WebserverPOST_Callback);

  webServer.begin();
}

void UpdateWebUI()
{
}

String processor(const String &var)
{
  if (var == "TANK_REMAIN_CAPACITY")
    return String((PersistenceData.tankRemain_µl / 10) / LubeConfig.tankCapacity_ml);
  if (var == "LUBE_DISTANCE_NORMAL")
    return String(LubeConfig.DistancePerLube_Default);
  if (var == "LUBE_DISTANCE_RAIN")
    return String(LubeConfig.DistancePerLube_Rain);
  if (var == "TANK_CAPACITY")
    return String(LubeConfig.tankCapacity_ml);
  if (var == "AMOUNT_PER_DOSE")
    return String(LubeConfig.amountPerDose_µl);
  if (var == "TANK_REMIND")
    return String(LubeConfig.TankRemindAtPercentage);
  if (var == "PULSE_PER_REV")
    return String(LubeConfig.PulsePerRevolution);
  if (var == "TIRE_WIDTH_MM")
    return String(LubeConfig.TireWidth_mm);
  if (var == "TIRE_RATIO")
    return String(LubeConfig.TireWidthHeight_Ratio);
  if (var == "RIM_DIAMETER")
    return String(LubeConfig.RimDiameter_Inch);
  if (var == "DISTANCE_PER_REV")
    return String(LubeConfig.DistancePerRevolution_mm);
  if (var == "BLEEDING_PULSES")
    return String(LubeConfig.BleedingPulses);
  if (var == "SPEED_SOURCE")
    return String(SpeedSourceString[LubeConfig.SpeedSource]);
  if (var == "GPS_BAUD")
    return String(GPSBaudRateString[LubeConfig.GPSBaudRate]);
#if PCB_REVISION == 13
  if (var == "CAN_SOURCE")
    return String(CANSourceString[LubeConfig.CANSource]);
#endif
  if (var == "CONFIG_CHECKSUM")
    return String(LubeConfig.checksum, 16);
  if (var == "WRITE_CYCLE_COUNT")
    return String(PersistenceData.writeCycleCounter);
  if (var == "TANK_REMAIN_UL")
    return String(PersistenceData.tankRemain_µl);
  if (var == "TRAVEL_DISTANCE_HIGHRES")
    return String(PersistenceData.TravelDistance_highRes);
  if (var == "PERSISTANCE_CHECKSUM")
    return String(PersistenceData.checksum, 16);

  if (var == "SHOW_IMPULSE_SETTINGS")
    return LubeConfig.SpeedSource == SOURCE_IMPULSE ? "" : "hidden";
  if (var == "SHOW_CAN_SETTINGS")
    return LubeConfig.SpeedSource == SOURCE_CAN ? "" : "hidden";
  if (var == "SHOW_GPS_SETTINGS")
    return LubeConfig.SpeedSource == SOURCE_GPS ? "" : "hidden";

  if (var == "SOURCE_SELECT_OPTIONS")
  {
    String temp;
    for (uint32_t i = 0; i < SpeedSourceString_Elements; i++)
      temp = temp + "<option value=\"" + i + "\">" + SpeedSourceString[i] + "</option>";
    return temp;
  }

  if (var == "CANSOURCE_SELECT_OPTIONS")
  {
    String temp;
    for (uint32_t i = 0; i < CANSourceString_Elements; i++)
      temp = temp + "<option value=\"" + i + "\">" + CANSourceString[i] + "</option>";
    return temp;
  }
  if (var == "GPSBAUD_SELECT_OPTIONS")
  {
    String temp;
    for (uint32_t i = 0; i < GPSBaudRateString_Elements; i++)
      temp = temp + "<option value=\"" + i + "\">" + GPSBaudRateString[i] + "</option>";
    return temp;
  }

  if (var == "SYSTEM_STATUS")
    return String(globals.systemStatustxt);

  if (var == "PLACEHOLDER")
    return "placeholder";

  return String();
}

void Webserver_Callback(AsyncWebServerRequest *request)
{
  request->send(LittleFS, "/index.htm", String(), false, processor);
}

void WebserverPOST_Callback(AsyncWebServerRequest *request)
{
  String message;
  if (request->hasParam(PARAM_MESSAGE, true))
  {
    message = request->getParam(PARAM_MESSAGE, true)->value();
    Serial.printf("POST: %s", message.c_str());
  }
}

void WebserverNotFound_Callback(AsyncWebServerRequest *request)
{
  request->send(404, "text/plain", "Not found");
}