// Quantumancy ESP32-P4 Sensor Node — entry point.
//
// UNVERIFIED AGAINST REAL HARDWARE. Nobody working on this workstream has a
// physical ESP32-P4 (or the BME280 / LD2410 modules) to flash and test
// against. This firmware is real, structurally-sound ESP-IDF C, reasoned
// about carefully against ESP-IDF's documented APIs and the public
// datasheets/protocol docs for each sensor -- but "compiles and reads
// correctly" is where the verification stops. See README.md's "What's
// verified vs. not" section before treating any of this as field-tested.
//
// Boot sequence: bring up Wi-Fi station mode (device_config.h credentials),
// wait (briefly, non-fatally) for an initial connection, initialize every
// registered sensor driver, then hand off to the telemetry task, which
// periodically samples the sensor registry and POSTs the results to the
// backend. Wi-Fi reconnection and per-cycle "are we online" checks happen
// independently after this, so a boot-time Wi-Fi hiccup doesn't wedge the
// device -- it just starts reporting once the connection comes up.

#include "wifi_manager.h"
#include "sensor_registry.h"
#include "telemetry_client.h"
#include "esp_err.h"
#include "esp_log.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"

static const char *TAG = "app_main";

// How long to wait at boot for the first Wi-Fi connection before giving up
// on blocking and handing off to the telemetry task anyway (which will
// simply skip cycles until wifi_manager's own retry logic connects).
#define BOOT_WIFI_WAIT_MS 20000

void app_main(void) {
    ESP_LOGI(TAG, "Quantumancy sensor node starting");

    ESP_ERROR_CHECK(wifi_manager_start());

    esp_err_t err = wifi_manager_wait_connected(pdMS_TO_TICKS(BOOT_WIFI_WAIT_MS));
    if (err == ESP_OK) {
        ESP_LOGI(TAG, "Wi-Fi connected at boot");
    } else {
        ESP_LOGW(TAG, "Wi-Fi not connected within %d ms at boot -- continuing anyway, "
                       "wifi_manager will keep retrying in the background", BOOT_WIFI_WAIT_MS);
    }

    sensor_registry_init_all();
    telemetry_client_start_task();

    ESP_LOGI(TAG, "startup complete, telemetry task running");
}