#pragma once
#include <Arduino.h>

// -------------------------------
// Firmware version
// -------------------------------
static const char* FIRMWARE_VERSION = "V2.4_UDP_LEDC_WM_SLEW";

// -------------------------------
// UDP
// -------------------------------
static const int listenPort = 12345;          // default / legacy constant
static const unsigned long watchdogTimeout = 5000;  // 5 seconds

// -------------------------------
// PWM setup (LEDC, ESP32 Core 3.x)
// -------------------------------
static const uint8_t NUM_CHANNELS = 8;

static const uint8_t pwmPins[NUM_CHANNELS] = {
    26, // D0
    22, // D1
    21, // D2
    17, // D3
    16, // D4
    5,  // D5
    18, // D6
    19  // D7
    // 23 (D8) remains as a spare
};

static const uint32_t pwmFrequency = 25000; // 25 kHz
static const uint8_t pwmResolution = 10;    // 10-bit resolution (0–1023)

// -------------------------------
// Channel labels for debugging
// -------------------------------
static const char* const channelLabels[NUM_CHANNELS] = {
  "CPU Load",
  "CPU Temp",
  "RAM Usage",
  "GPU Load",
  "GPU Temp",
  "VRAM Usage",
  "Reserved 6",
  "Reserved 7"
};

static const char* const channelUnits[NUM_CHANNELS] = {
  "%",     // CPU Load
  "°C",    // CPU Temp
  "%",     // RAM Usage
  "%",     // GPU Load
  "°C",    // GPU Temp
  "%",     // VRAM Usage
  "",      // Reserved
  ""       // Reserved
};

// -------------------------------
// Channel labels ESPUI
// -------------------------------
static const char* const channelDropdownLabels[NUM_CHANNELS] = {
    "CH0 (CPU Load)",
    "CH1 (CPU Temp)",
    "CH2 (RAM Usage)",
    "CH3 (GPU Load)",
    "CH4 (GPU Temp)",
    "CH5 (VRAM Usage)",
    "CH6 (Reserved 6)",
    "CH7 (Reserved 7)"
};

// -------------------------------
// Calibration logical points
// -------------------------------
static const unsigned long slewDuration = 1000; // 1 second smooth transition

// -------------------------------
// Animation tuning
// -------------------------------
static const float FADE_IN_FACTOR  = 0.999f;   // boot-up 0 → 100%
static const float FADE_OUT_FACTOR = 0.999f;   // watchdog 100% → 0
static const unsigned long FADE_INTERVAL = 1;  // ms between fade steps

// -------------------------------
// Connection state machine
// -------------------------------
enum ConnectionState {
    STATE_DISCONNECTED,          // fade to zero
    STATE_CONNECTING,            // fade in 0 → 100%
    STATE_WAIT_FOR_FIRST_PACKET, // hold at 100%, wait for first UDP
    STATE_CONNECTED              // normal UDP-driven slew
};