rssn 0.2.9

//! Bincode-based FFI API for constant module.
//!
//! This provides binary serialization for high-performance interop.

use crate::ffi_apis::common::BincodeBuffer;
use crate::ffi_apis::constant_ffi::json::BuildInfo;

/// Returns all build information as a `bincode_next` buffer.
/// The caller must free the returned buffer using `rssn_free_bincode_buffer`.
#[unsafe(no_mangle)]
pub extern "C" fn rssn_get_build_info_bincode() -> BincodeBuffer {
    let info = BuildInfo {
        build_date: crate::constant::get_build_date().to_string(),
        commit_sha: crate::constant::get_commit_sha().to_string(),
        rustc_version: crate::constant::get_rustc_version().to_string(),
        cargo_target_triple: crate::constant::get_cargo_target_triple().to_string(),
        system_info: crate::constant::get_system_info().to_string(),
    };

    match bincode_next::serde::encode_to_vec(&info, bincode_next::config::standard()) {
        | Ok(bytes) => BincodeBuffer::from_vec(bytes),
        | Err(_) => BincodeBuffer::empty(),
    }
}

/// Returns the build date as a `bincode_next` buffer.
/// The caller must free the returned buffer using `rssn_free_bincode_buffer`.
#[unsafe(no_mangle)]
pub extern "C" fn rssn_get_build_date_bincode() -> BincodeBuffer {
    let date = crate::constant::get_build_date();

    match bincode_next::serde::encode_to_vec(date, bincode_next::config::standard()) {
        | Ok(bytes) => BincodeBuffer::from_vec(bytes),
        | Err(_) => BincodeBuffer::empty(),
    }
}

/// Returns the commit SHA as a `bincode_next` buffer.
/// The caller must free the returned buffer using `rssn_free_bincode_buffer`.
#[unsafe(no_mangle)]
pub extern "C" fn rssn_get_commit_sha_bincode() -> BincodeBuffer {
    let sha = crate::constant::get_commit_sha();

    match bincode_next::serde::encode_to_vec(sha, bincode_next::config::standard()) {
        | Ok(bytes) => BincodeBuffer::from_vec(bytes),
        | Err(_) => BincodeBuffer::empty(),
    }
}

/// Returns the long version string as a `bincode_next` buffer.
/// The caller must free the returned buffer using `rssn_free_bincode_buffer`.
#[unsafe(no_mangle)]
pub extern "C" fn rssn_get_long_version_bincode() -> BincodeBuffer {
    let version = crate::constant::get_long_version();

    match bincode_next::serde::encode_to_vec(version, bincode_next::config::standard()) {
        | Ok(bytes) => BincodeBuffer::from_vec(bytes),
        | Err(_) => BincodeBuffer::empty(),
    }
}

macro_rules! gen_ffi_bincode {
    ($ffi_name:ident, $internal_getter:path) => {
        /// Generates a FFI function that retrieves a constant value,
        /// serializes it using `bincode_next`, and returns it as a `BincodeBuffer`.
        ///
        /// # Safety
        ///
        /// The caller must free the returned buffer using `rssn_free_bincode_buffer`.
        #[unsafe(no_mangle)]
        pub extern "C" fn $ffi_name() -> BincodeBuffer {
            let value = $internal_getter();

            match bincode_next::serde::encode_to_vec(&value, bincode_next::config::standard()) {
                | Ok(bytes) => BincodeBuffer::from_vec(bytes),
                | Err(_) => BincodeBuffer::empty(),
            }
        }
    };
}

// --- FFI Implementations ---

// // --- Build Info ---
// gen_ffi_bincode!(rssn_get_build_date_bincode, crate::constant::get_build_date);
// gen_ffi_bincode!(rssn_get_commit_sha_bincode, crate::constant::get_commit_sha);
// gen_ffi_bincode!(rssn_get_rustc_version_bincode, crate::constant::get_rustc_version);
// gen_ffi_bincode!(rssn_get_cargo_target_triple_bincode, crate::constant::get_cargo_target_triple);
// gen_ffi_bincode!(rssn_get_system_info_bincode, crate::constant::get_system_info);
// I will comment out these calls for now but personally I think it's a good idea to have them instead of the original functions.

// --- Fundamental & Electromagnetic ---
gen_ffi_bincode!(
    rssn_get_speed_of_light_bincode,
    crate::constant::get_speed_of_light
);

gen_ffi_bincode!(
    rssn_get_planck_constant_bincode,
    crate::constant::get_planck_constant
);

gen_ffi_bincode!(
    rssn_get_reduced_planck_constant_bincode,
    crate::constant::get_reduced_planck_constant
);

gen_ffi_bincode!(
    rssn_get_elementary_charge_bincode,
    crate::constant::get_elementary_charge
);

gen_ffi_bincode!(
    rssn_get_gravitational_constant_bincode,
    crate::constant::get_gravitational_constant
);

gen_ffi_bincode!(
    rssn_get_fine_structure_constant_bincode,
    crate::constant::get_fine_structure_constant
);

gen_ffi_bincode!(
    rssn_get_inverse_fine_structure_constant_bincode,
    crate::constant::get_inverse_fine_structure_constant
);

gen_ffi_bincode!(
    rssn_get_vacuum_magnetic_permeability_bincode,
    crate::constant::get_vacuum_magnetic_permeability
);

gen_ffi_bincode!(
    rssn_get_vacuum_electric_permittivity_bincode,
    crate::constant::get_vacuum_electric_permittivity
);

gen_ffi_bincode!(
    rssn_get_josephson_constant_bincode,
    crate::constant::get_josephson_constant
);

gen_ffi_bincode!(
    rssn_get_von_klitzing_constant_bincode,
    crate::constant::get_von_klitzing_constant
);

gen_ffi_bincode!(
    rssn_get_magnetic_flux_quantum_bincode,
    crate::constant::get_magnetic_flux_quantum
);

// --- Atomic & Particle masses ---
gen_ffi_bincode!(
    rssn_get_electron_mass_bincode,
    crate::constant::get_electron_mass
);

gen_ffi_bincode!(
    rssn_get_electron_mass_u_bincode,
    crate::constant::get_electron_mass_u
);

gen_ffi_bincode!(
    rssn_get_proton_mass_kg_bincode,
    crate::constant::get_proton_mass_kg
);

gen_ffi_bincode!(
    rssn_get_proton_mass_u_bincode,
    crate::constant::get_proton_mass_u
);

gen_ffi_bincode!(
    rssn_get_neutron_mass_u_bincode,
    crate::constant::get_neutron_mass_u
);

gen_ffi_bincode!(
    rssn_get_deuteron_mass_u_bincode,
    crate::constant::get_deuteron_mass_u
);

gen_ffi_bincode!(
    rssn_get_alpha_particle_mass_u_bincode,
    crate::constant::get_alpha_particle_mass_u
);

gen_ffi_bincode!(
    rssn_get_atomic_mass_constant_bincode,
    crate::constant::get_atomic_mass_constant
);

gen_ffi_bincode!(
    rssn_get_rydberg_constant_bincode,
    crate::constant::get_rydberg_constant
);

gen_ffi_bincode!(
    rssn_get_bohr_radius_bincode,
    crate::constant::get_bohr_radius
);

gen_ffi_bincode!(
    rssn_get_hartree_energy_bincode,
    crate::constant::get_hartree_energy
);

gen_ffi_bincode!(
    rssn_get_classical_electron_radius_bincode,
    crate::constant::get_classical_electron_radius
);

gen_ffi_bincode!(
    rssn_get_thomson_cross_section_bincode,
    crate::constant::get_thomson_cross_section
);

// --- Magnetic & G-factors ---
gen_ffi_bincode!(
    rssn_get_bohr_magneton_bincode,
    crate::constant::get_bohr_magneton
);

gen_ffi_bincode!(
    rssn_get_nuclear_magneton_bincode,
    crate::constant::get_nuclear_magneton
);

gen_ffi_bincode!(
    rssn_get_electron_g_factor_bincode,
    crate::constant::get_electron_g_factor
);

gen_ffi_bincode!(
    rssn_get_muon_g_factor_bincode,
    crate::constant::get_muon_g_factor
);

gen_ffi_bincode!(
    rssn_get_proton_magnetic_moment_bincode,
    crate::constant::get_proton_magnetic_moment
);

gen_ffi_bincode!(
    rssn_get_neutron_magnetic_moment_bincode,
    crate::constant::get_neutron_magnetic_moment
);

gen_ffi_bincode!(
    rssn_get_shielded_proton_gyromagnetic_ratio_bincode,
    crate::constant::get_shielded_proton_gyromagnetic_ratio
);

// --- Thermodynamic & Physicochemical ---
gen_ffi_bincode!(
    rssn_get_boltzmann_constant_bincode,
    crate::constant::get_boltzmann_constant
);

gen_ffi_bincode!(
    rssn_get_avogadro_constant_bincode,
    crate::constant::get_avogadro_constant
);

gen_ffi_bincode!(
    rssn_get_molar_gas_constant_bincode,
    crate::constant::get_molar_gas_constant
);

gen_ffi_bincode!(
    rssn_get_faraday_constant_bincode,
    crate::constant::get_faraday_constant
);

gen_ffi_bincode!(
    rssn_get_stefan_boltzmann_constant_bincode,
    crate::constant::get_stefan_boltzmann_constant
);

gen_ffi_bincode!(
    rssn_get_wien_displacement_constant_bincode,
    crate::constant::get_wien_displacement_constant
);

gen_ffi_bincode!(
    rssn_get_molar_volume_ideal_gas_bincode,
    crate::constant::get_molar_volume_ideal_gas
);

gen_ffi_bincode!(
    rssn_get_first_radiation_constant_bincode,
    crate::constant::get_first_radiation_constant
);

gen_ffi_bincode!(
    rssn_get_second_radiation_constant_bincode,
    crate::constant::get_second_radiation_constant
);

// --- Ratios ---
gen_ffi_bincode!(
    rssn_get_proton_electron_mass_ratio_bincode,
    crate::constant::get_proton_electron_mass_ratio
);

gen_ffi_bincode!(
    rssn_get_muon_electron_mass_ratio_bincode,
    crate::constant::get_muon_electron_mass_ratio
);

gen_ffi_bincode!(
    rssn_get_neutron_proton_mass_ratio_bincode,
    crate::constant::get_neutron_proton_mass_ratio
);

gen_ffi_bincode!(
    rssn_get_electron_muon_mass_ratio_bincode,
    crate::constant::get_electron_muon_mass_ratio
);

gen_ffi_bincode!(
    rssn_get_deuteron_proton_mass_ratio_bincode,
    crate::constant::get_deuteron_proton_mass_ratio
);

gen_ffi_bincode!(
    rssn_get_electron_charge_to_mass_quotient_bincode,
    crate::constant::get_electron_charge_to_mass_quotient
);

gen_ffi_bincode!(
    rssn_get_muon_magnetic_moment_bincode,
    crate::constant::get_muon_magnetic_moment
);