#include "sampler_task.h"
#include "ringbuf.h"
#include "ds18b20.h"   // добавим

extern "C" {
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_timer.h"
}

// буфер
static ringbuf_t rb;

ringbuf_t* sampler_get_buffer() {
    return &rb;
}

static void sampler_task(void *arg) {
    
    const TickType_t period = pdMS_TO_TICKS(6000);
    TickType_t last_wake = xTaskGetTickCount();

    while (1) {
        int64_t now_ms = esp_timer_get_time() / 1000;

        float temp = ds18b20_read();
        ringbuf_push(&rb, now_ms, (int)(temp * 100));

        vTaskDelayUntil(&last_wake, period);// 6 секунд
    }
}

void sampler_task_start() {
    ringbuf_init(&rb);
    ds18b20_init(GPIO_NUM_27);  // новый драйвер

    xTaskCreate(
        sampler_task,
        "sampler",
        4096,
        NULL,
        5,
        NULL
    );
}