/*
 * KLUBHAUS ALERT v5.0 — E32R35T Edition
 *
 * Target: LCDWiki E32R35T (ESP32-WROOM-32E + 3.5" ST7796S + XPT2046)
 *
 * Refactored: business logic separated from display code.
 * Business logic knows nothing about TFT_eSPI.
 * Display knows nothing about ntfy/WiFi/state machine.
 * They communicate through ScreenState (plain struct).
 */

#include "Config.h"
#include "DisplayManager.h"
#include "DoorbellLogic.h"

DisplayManager display;
DoorbellLogic  logic;

#include <TFT_eSPI.h>

#ifndef LOAD_GLCD
  #error "LOAD_GLCD is NOT defined — fonts missing!"
#endif

#ifndef ST7796_DRIVER
  #error "ST7796_DRIVER is NOT defined — wrong setup!"
#endif

void setup() {
  Serial.begin(115200);
  unsigned long t = millis();
  while (!Serial && millis() - t < 3000) delay(10);
  delay(500);

  Serial.println("\n========================================");
  Serial.println("  KLUBHAUS ALERT v5.0 — E32R35T");
  #if DEBUG_MODE
  Serial.println("  *** DEBUG MODE — _test topics ***");
  #endif
  Serial.println("========================================");

  // 1. Init display hardware
  display.begin();

  // 2. Init logic (sets boot splash screen state)
  logic.begin();
  display.render(logic.getScreenState());
  delay(1500);

  // 3. WiFi (logic updates screen state, we render each phase)
  // We need a small coupling here for the blocking WiFi connect
  // This could be made async later
  logic.beginWiFi();  // sets screen to WIFI_CONNECTING
  display.render(logic.getScreenState());

  logic.connectWiFiBlocking();  // blocks, sets CONNECTED or FAILED
  display.render(logic.getScreenState());
  delay(1500);

  // 4. Finish boot
  logic.finishBoot();
  display.setBacklight(false);

  Serial.println("[BOOT] Ready — monitoring ntfy.sh\n");
}

void loop() {
  // 1. Read touch
  TouchEvent touch = display.readTouch();
  logic.onTouch(touch);

  // 2. Read serial commands
  if (Serial.available()) {
    String cmd = Serial.readStringUntil('\n');
    cmd.trim();
    logic.onSerialCommand(cmd);
  }

  // 3. Update business logic
  logic.update();

  // 4. Render
  const ScreenState& state = logic.getScreenState();
  display.setBacklight(state.screen != ScreenID::OFF);
  display.render(state);

  delay(20);
}