#pragma once
#include <array>
namespace FDNReverb {
     // -- Compile-time constants ----------------------------------------------------
     static constexpr int FDN_N = 8; // FDN order (channels; legacy definition kept for reference)
    static constexpr int SAPF_STAGES = 3;    // allpass stages per delay line
     static constexpr int ABSO_STAGES = 3; // Stage 1: Jot first-order + LF/HF correction
    static constexpr int ER_TAPS = 16;       // early-reflection FIR taps

     // Stage 2 (Valimaki-Liski cumulative GEQ) stages:
     // 10: 10-band GEQ (interaction matrix + WLS)
    //
     // important design notes:
     // - the mid-band gain (midGain) of GEQ band 0 is absorbed into the b0/b1/b2 coefficients;
     // no separate DC gain stage is needed to avoid DC coloration,
     // just a single gain.
     // - LF Absorption / HF Damping are applied directly as GEQ target dB,
     // fully independent of each other.
     // - targets are clamped to 0 dB or below, mathematically guaranteeing loop gain <= 1.
    static constexpr int ABSO_STAGES_S2 = 10;

     // Mutually-prime base delays (samples @ 48 kHz), log-distributed 30-130 ms
    static constexpr std::array<int, FDN_N> BASE_PRIMES_48K = {
        1451, 1693, 1979, 2311, 2683, 3067, 3491, 3923
    };
} // namespace FDNReverb