#pragma once

#include <stdint.h>

#include "esp_err.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    RUNTIME_DIAG_COUNTER_LIFECYCLE_START_ATTEMPT = 0,
    RUNTIME_DIAG_COUNTER_LIFECYCLE_START_SUCCESS,
    RUNTIME_DIAG_COUNTER_LIFECYCLE_START_FAILED,
    RUNTIME_DIAG_COUNTER_LIFECYCLE_START_RETRY,
    RUNTIME_DIAG_COUNTER_LIFECYCLE_STOP_ATTEMPT,
    RUNTIME_DIAG_COUNTER_LIFECYCLE_STOP_SUCCESS,
    RUNTIME_DIAG_COUNTER_LIFECYCLE_STOP_FAILED,
    RUNTIME_DIAG_COUNTER_WIFI_CONNECT_SUCCESS,
    RUNTIME_DIAG_COUNTER_WIFI_CONNECT_FAILED,
    RUNTIME_DIAG_COUNTER_WIFI_CONNECT_TIMEOUT,
    RUNTIME_DIAG_COUNTER_PRINTER_JOB_SUBMITTED,
    RUNTIME_DIAG_COUNTER_PRINTER_JOB_SUCCESS,
    RUNTIME_DIAG_COUNTER_PRINTER_JOB_FAILED,
    RUNTIME_DIAG_COUNTER_PRINTER_JOB_CANCELED,
    RUNTIME_DIAG_COUNTER_IMAGE_GENERATE_ATTEMPT,
    RUNTIME_DIAG_COUNTER_IMAGE_GENERATE_SUCCESS,
    RUNTIME_DIAG_COUNTER_IMAGE_GENERATE_FAILED,
    RUNTIME_DIAG_COUNTER_IMAGE_GENERATE_TIMEOUT,
    RUNTIME_DIAG_COUNTER_REST_RESPONSES_TOTAL,
    RUNTIME_DIAG_COUNTER_REST_ERRORS_TOTAL,
    RUNTIME_DIAG_COUNTER_MAX,
} runtime_diag_counter_t;

typedef enum {
    RUNTIME_DIAG_GAUGE_LIFECYCLE_STATE = 0,
    RUNTIME_DIAG_GAUGE_STATUS_POLL_PAUSE_DEPTH,
    RUNTIME_DIAG_GAUGE_PRINTER_QUEUE_DEPTH,
    RUNTIME_DIAG_GAUGE_MAX,
} runtime_diag_gauge_t;

typedef struct {
    uint64_t counters[RUNTIME_DIAG_COUNTER_MAX];
    int32_t gauges[RUNTIME_DIAG_GAUGE_MAX];
    int64_t last_error_ms;
    esp_err_t last_error_code;
    char last_error_source[32];
    char last_error_message[96];
} runtime_diag_snapshot_t;

void runtime_diag_counter_add(runtime_diag_counter_t counter, uint32_t delta);
void runtime_diag_set_gauge(runtime_diag_gauge_t gauge, int32_t value);
void runtime_diag_record_error(const char *source, esp_err_t code, const char *message);
void runtime_diag_get_snapshot(runtime_diag_snapshot_t *out_snapshot);

const char *runtime_diag_counter_name(runtime_diag_counter_t counter);
const char *runtime_diag_gauge_name(runtime_diag_gauge_t gauge);

#ifdef __cplusplus
}
#endif