event_handler.h

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/*
 * SPDX-FileCopyrightText: 2025 Anna-Lena Marx <mail@marx.engineer>
 *
 * SPDX-License-Identifier: MPL-2.0
 */
 
#ifndef _EVENT_HANDLER_H_
#define _EVENT_HANDLER_H_
 
#include <stdint.h>
#include <zephyr/drivers/gpio.h>
#include <ui/context/context.h>


typedef enum {
    APP_EVENT_NONE,
    APP_EVENT_EPUB_INIT,
    APP_EVENT_RESTORE_BOOK,
    APP_EVENT_BOOK_SELECTED,
    APP_EVENT_PREV_CHAPTER,
    APP_EVENT_NEXT_CHAPTER,
    APP_EVENT_PREV_PAGE,
    APP_EVENT_NEXT_PAGE,
    APP_EVENT_SHOW_BOOKMENU,
    APP_EVENT_SAVE_STATE,
    APP_EVENT_SHUTDOWN,
} application_event_t;

typedef struct {
    application_event_t type;
    union {
        struct {
          uint32_t book_id;
        } book_selected;
        struct {
          context_t *context;
        } context;
        struct {
          const struct gpio_dt_spec *pin;
        } shutdown;
        struct {
            size_t scroll_pos;
        } save_state;
    } data;
} app_event_t;

void app_post_event(const app_event_t *event);

void app_events_init(void);

#endif /* _EVENT_HANDLER_H_ */