AlgorithmConfig.h

#ifndef ALGORITHM_CONFIG_H
#define ALGORITHM_CONFIG_H

#include <cstddef>
#include <cstdint>
#include <string>

struct SearchConfig {
    std::size_t result_count{10};
    float gamma{0.185f};
    std::size_t entry_point_count{100};
};

struct QuantizationConfig {
    std::size_t centroid_count{64};
    std::size_t total_bits{9};
    std::size_t navigation_bits{4};
};

struct GraphConfig {
    std::size_t graph_degree{96};
    std::uint32_t random_seed{114514};
    std::size_t ef_construction{400};

    std::size_t onng_max_outdegree{96};
    std::size_t onng_max_indegree{144};
    std::size_t onng_min_edges{64};

    std::size_t vamana_refinement_degree{72};
    float vamana_refinement_alpha{1.2f};
    std::size_t cache_affinity_window{32};
    std::size_t build_thread_limit{32};
};

struct AlgorithmConfig {
    SearchConfig search;
    QuantizationConfig quantization;
    GraphConfig graph;
};

namespace algorithmconfig {

AlgorithmConfig defaults();

bool validate(
    const AlgorithmConfig& config,
    std::string* error = nullptr);

bool load(
    const std::string& path,
    AlgorithmConfig& config,
    std::string* error = nullptr);

std::string defaultPathForExecutable(const char* executable_path);

} // namespace algorithmconfig

#endif // ALGORITHM_CONFIG_H