/*
 * Sound.h
 *
 *  Created on: Oct 1, 2024
 *      Author: DashyFox
 */

#ifndef INC_SOUND_H_
#define INC_SOUND_H_

#include <stdint.h>

// Define default timer and channels
#define SOUND_TIMER        TIM4
#define SOUND_TIMER_RCC    RCC_APB1ENR_TIM4EN

extern uint32_t bpm;

// Define the Note structure
typedef struct {
    uint32_t frequency;    // Frequency in Hz
    uint32_t duration;     // Duration in milliseconds, 0 means infinite
    uint8_t duty_cycle;    // PWM duty cycle in percentage (0-100)
} Note_t;

// Enum for musical notes
typedef enum {
    C0 = 16,
    C0_sharp = 17,
    D0 = 18,
    D0_sharp = 19,
    E0 = 21,
    F0 = 22,
    F0_sharp = 23,
    G0 = 25,
    G0_sharp = 26,
    A0 = 28,
    A0_sharp = 29,
    B0 = 31,

    C1 = 33,
    C1_sharp = 35,
    D1 = 37,
    D1_sharp = 39,
    E1 = 41,
    F1 = 44,
    F1_sharp = 46,
    G1 = 49,
    G1_sharp = 52,
    A1 = 55,
    A1_sharp = 58,
    B1 = 62,

    C2 = 65,
    C2_sharp = 69,
    D2 = 73,
    D2_sharp = 78,
    E2 = 82,
    F2 = 87,
    F2_sharp = 92,
    G2 = 98,
    G2_sharp = 104,
    A2 = 110,
    A2_sharp = 117,
    B2 = 123,

    C3 = 130,
    C3_sharp = 138,
    D3 = 146,
    D3_sharp = 155,
    E3 = 164,
    F3 = 174,
    F3_sharp = 185,
    G3 = 196,
    G3_sharp = 207,
    A3 = 220,
    A3_sharp = 233,
    B3 = 246,

    C4 = 261,
    C4_sharp = 277,
    D4 = 293,
    D4_sharp = 311,
    E4 = 329,
    F4 = 349,
    F4_sharp = 369,
    G4 = 392,
    G4_sharp = 415,
    A4 = 440,
    A4_sharp = 466,
    B4 = 493,

    C5 = 523,
    C5_sharp = 554,
    D5 = 587,
    D5_sharp = 622,
    E5 = 659,
    F5 = 698,
    F5_sharp = 740,
    G5 = 784,
    G5_sharp = 830,
    A5 = 880,
    A5_sharp = 932,
    B5 = 987,

    C6 = 1046,
    C6_sharp = 1108,
    D6 = 1174,
    D6_sharp = 1244,
    E6 = 1318,
    F6 = 1396,
    F6_sharp = 1480,
    G6 = 1568,
    G6_sharp = 1661,
    A6 = 1760,
    A6_sharp = 1864,
    B6 = 1975,

    C7 = 2093,
    C7_sharp = 2217,
    D7 = 2349,
    D7_sharp = 2489,
    E7 = 2637,
    F7 = 2793,
    F7_sharp = 2960,
    G7 = 3136,
    G7_sharp = 3322,
    A7 = 3520,
    A7_sharp = 3729,
    B7 = 3951,

    C8 = 4186,
    C8_sharp = 4435,
    D8 = 4699,
    D8_sharp = 4978
} MusicalNote_t;


// Enum for note durations (in fractions of a whole note)
typedef enum {
    T0 = 0,  // Infinite
    T1 = 1,  // Whole note
    T2 = 2,  // Half note
    T4 = 4,  // Quarter note
    T8 = 8,  // Eighth note
    T16 = 16 // Sixteenth note
} NoteDuration_t;

// Structure for melody playback
typedef struct {
    Note_t* notes;         // Pointer to an array of notes
    uint32_t size;         // Number of notes in the melody
    uint32_t current_note; // Index of the current note
    uint32_t repeat_count; // Total repeat count
    uint32_t repeat_left;  // Repeats left
} Melody_t;

// Function declarations
void sound_init(void);
void sound_set_bpm(uint32_t bpm);
void sound_play_note(Note_t note, uint8_t channel);
void sound_play_melody(Note_t* melody, uint32_t size, uint8_t channel, uint32_t repeat_count);
void sound_play_melody(Note_t* melody, uint32_t size, uint8_t channel, uint32_t repeat_count);
void sound_tick(void);

uint16_t get_array_size(Note_t *array);

Note_t sound_create_note(MusicalNote_t note, NoteDuration_t duration, uint8_t duty_cycle);
#define CREATE_NOTE(note, dur, duty) \
    ((Note_t){ .frequency = note, .duration = dur, .duty_cycle = duty })

#endif /* INC_SOUND_H_ */