#ifndef SHARED_STATE_H
#define SHARED_STATE_H

#include <Arduino.h>
#include <I2S.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <MIDI.h>

// --- Pin Definitions ---
// I2S Audio
#define I2S_BCLK_PIN 9
#define I2S_LRCK_PIN 10
#define I2S_DATA_PIN 11

// I2C OLED Display
#define OLED_SDA_PIN 4
#define OLED_SCL_PIN 5

// Controls
#define ENCODER_CLK_PIN 12
#define ENCODER_DT_PIN  13
#define ENCODER_SW_PIN  14
#define VOL_POT_PIN     26 // ADC0

// MIDI Input
#define MIDI_RX_PIN 1 // UART0 RX

// --- Constants ---
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET    -1

#define SAMPLE_RATE 44100
#define BITS_PER_SAMPLE 16

// --- Global Objects ---
extern I2S i2s;
extern Adafruit_SSD1306 display;
extern midi::MidiInterface<HardwareSerial> MIDI;

// --- Watchdog ---
extern volatile unsigned long lastLoop0Time;
extern volatile unsigned long lastLoop1Time;
extern volatile bool watchdogActive;

// --- Synthesizer State ---
extern volatile float g_note_frequency;
extern volatile bool g_note_on;
extern volatile float g_volume;
extern float g_phase;

// --- Control State ---
extern int g_encoder_value;

// --- Test Mode ---
// #define TEST_OUT

#endif