Presenter

#include <pulse_os.h>
#include <pulse_types.h>
#include <app_resources.h>

#include <stdint.h>
#include <stddef.h>

// Forward Declaration
void handle_received_bluetooth_data(const uint8_t *buffer);

//Will draw the title of the app
void draw_title(PulseResource image)
{
    pulse_draw_image(image,8,20);
}

//Draws the prev button
void draw_prev(PulseResource button)
{
    pulse_draw_image(button,3,70);
}

//Draws the next button
void draw_next(PulseResource button)
{
    pulse_draw_image(button,51,70);
}

// This function is called once after the watch has booted up
// and the OS has loaded
void main_app_init()
{
    // Registers a callback function to handle non pulse-protocol bluetooth data received
    pulse_register_callback(ACTION_HANDLE_NON_PULSE_PROTOCOL_BLUETOOTH_DATA, &handle_received_bluetooth_data);
    draw_title(IMAGE_TITLE);
    draw_prev(IMAGE_PREV_UP);
    draw_next(IMAGE_NEXT_UP);
}

int hold_timer_value;
int button_timer_value;
bool held=false;

//If the button is held, then draw the IMAGE_PREV_DOWN for 500ms and then the IMAGE_PREV_UP after
void click_hold(int direction)
{
    pulse_vibe_on();
    pulse_mdelay(75);
    pulse_vibe_off();
    send_bluetooth_response(direction);
    draw_prev(IMAGE_PREV_DOWN);
    button_timer_value=pulse_register_timer(500, &draw_prev, IMAGE_PREV_UP);
    held=true;
}

//when button_down event is called, the timer will be initialized for 500ms to check for button hold
void main_app_handle_button_down()
{
hold_timer_value=pulse_register_timer(500, &click_hold, 0);
}

void main_app_handle_button_up()
{
    if(!held) {
    //If the button is not held, then draw the IMAGE_NEXT_DOWN for 500ms and then the IMAGE_NEXT_UP after
        draw_next(IMAGE_NEXT_DOWN);
        button_timer_value=pulse_register_timer(500, &draw_next, IMAGE_NEXT_UP);
        pulse_cancel_timer(&hold_timer_value);
        send_bluetooth_response(1);

    }
    held=false;
}

// Main loop. This function is called frequently.
// No blocking calls are allowed in this function or else the watch will reset.
// The inPulse watchdog timer will kick in after 5 seconds if a blocking
// call is made.
void main_app_loop()
{

}

// This function is called whenever the processor is about to sleep (to conserve power)
// The sleep functionality is scheduled with pulse_update_power_down_timer(uint32_t)
void main_app_handle_doz()
{

}

// Prints a status message to the screen when bluetooth is connected or disconnected
void main_app_handle_hardware_update(enum PulseHardwareEvent event)
{
    switch(event) {
        case BLUETOOTH_CONNECTED:
            //printf("BT Connected\n");
            break;

        case BLUETOOTH_DISCONNECTED:
           // printf("BT Disconnected\n");
            break;
    }
}

// Send back a short response to the host that initiated the bluetooth connection
void send_bluetooth_response(int command)
{
    pulse_send_bluetooth_int(command);
}

// Prints the first 16 bytes of the bluetooth data received to the screen
void handle_received_bluetooth_data(const uint8_t *buffer)
{
   
}