main.h

#ifndef MAIN_H
#define MAIN_H

#include <MagickWand/MagickWand.h>

#include <led-matrix-c.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <time.h>
#include <dirent.h>
#include <strings.h>
#include <math.h>
#include <signal.h>

#define MATRIX_WIDTH 128
#define MATRIX_HEIGHT 32
#define NUM_FRAMES 30
#define FRAME_DELAY 4
#define M_PI 3.14159265358979323846
#define MAX_LOOPS 10
#define MIN_LOOPS 5

typedef struct {
    double time;
    int num_particles;
} ParticleAnimation;

// typedef struct {
//     FILE *file;
//     uint8_t *frame_buffer;
//     int width;
//     int height;
//     int frame_size;
//     int total_frames;
//     int current_frame;
//     int frame_skip;
//     int frame_counter;
//     int loop;
//     int playing;
// } VideoPlayer;

typedef struct {
    FILE *file;
    uint8_t *frame_buffer;
    int width;
    int height;
    int frame_size;
    int total_frames;
    int current_frame;

    // --- Timing ---
    float frame_step;        // Number of video frames to advance per project tick
    float frame_accumulator; // Tracks fractional frame progress
    
    int loop;
    int playing;
} VideoPlayer;

typedef struct {
    char **lines;
    size_t count;
    char *buffer;
} TextLines;

typedef struct
{
    struct LedFont *font;
    int font_width;
    int font_baseline;
    struct Color color;
    TextLines *lines;
    int x_orig;
    int y_orig;
    int x;
    int y;
    int letter_spacing;
} Text;

typedef struct
{
    int text_frame_counter;
    int text_frame_skip;
    int particle_frame_counter;
    int particle_frame_skip;
    int prjct_fps;
    int frame_delay_us;
} FrameController;

typedef struct
{
    struct RGBLedMatrix *matrix;
    struct LedCanvas *offscreen_canvas;
    int width;
    int height;
} MatrixContext;

int matrix_setup(MatrixContext *ctx);
void overdraw_half(struct LedCanvas *canvas, int width, int height, int left_half);
int rand_range(int min, int max);

char *load_text_from_file(const char *filename);
TextLines *load_text_lines_from_file(const char *filename);
int text_setup(MatrixContext *mctx, Text *top, Text *bottom);
void text_update(MatrixContext *mctx, Text *top, Text *bottom, int should_move);

void particle_animation_init(ParticleAnimation *anim);
void particle_animation_draw(ParticleAnimation *anim, MatrixContext *mctx, int x_offset, int width);

int video_player_init(VideoPlayer *vp, const char *filepath, int video_fps, int prjct_fps);
void video_player_draw(VideoPlayer *vp, MatrixContext *mctx, int x_offset);
void video_player_cleanup(VideoPlayer *vp);

void free_text_lines(TextLines *text_lines);

#endif