onod3000/include/onod3000.h

#pragma once
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>

#ifdef __cplusplus
extern "C" {
#endif

// Returns true on success. Writes three doubles: obs, z, p
bool onod_run(const char* test,
              const uint8_t* samples,
              size_t len,
              double* result /* length >= 3 */);

// Health score of a sample. NaN marks values that are not available.
typedef struct {
    double p_combined;    // calibrated p-value of all tests combined
    double score;         // -log10(p_combined), capped at 12; < 2 pass, < 4 suspect
    int    verdict;       // 0 pass, 1 suspect, 2 fail, 3 insufficient data (< 256 bytes)
    int    weakest;       // index of the test with the lowest calibrated p, -1 if none
    double depth_bits;    // log2 of the bits in the longest passing prefix
    bool   depth_complete;// true if every prefix up to the whole sample passed
    double p_cal[15];     // calibrated p-value per test, NaN if skipped
} OnodScore;

// Returns true on success. With depth, also computes the survival depth (up to 2x slower).
bool onod_score(const uint8_t* samples,
                size_t len,
                bool depth,
                OnodScore* result);

// Name of test index 0..14 as used in OnodScore.p_cal, NULL past the last one.
const char* onod_test_name(size_t index);

#ifdef __cplusplus
}
#endif