/*
 * Framework-Native Vector Container
 * Ported from stealthmachines/AnalogContainer1
 * https://github.com/stealthmachines/AnalogContainer1
 *
 * Replaces Docker (400 MB) with pure mathematical context (~20 KB).
 * Philosophy: Containers are not processes – they are mathematical boundaries.
 * No filesystem virtualisation, no process isolation, no kernel overhead.
 * Just continuous transformations in vector space.
 *
 * Licensed per https://zchg.org/t/legal-notice-copyright-applicable-ip-and-licensing-read-me/440
 */

#ifndef VECTOR_CONTAINER_H
#define VECTOR_CONTAINER_H

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

#ifndef M_PI
#define M_PI  3.14159265358979323846
#endif
#ifndef M_E
#define M_E   2.71828182845904523536
#endif

/* Golden Ratio constants */
#define PHI        1.618033988749895
#define INV_PHI    0.618033988749895
#define PI_PHI     1.941991119639191

/* Vector space dimensions */
#define FOURIER_COEFFS    12   /* top 12 φ-harmonic coefficients     */
#define DCT_COEFFS         8   /* DCT real-coefficient count          */
#define BREATHING_SEEDS    8   /* POTSafeMath v9.3 convergence seeds  */
#define GLYPH_HARMONICS   12   /* holographic interference field      */
#define VECTOR_DIM        64   /* base vector dimension               */

/* DNA encoding */
#define DNA_NEGATIVE  'A'
#define DNA_NEUTRAL   'G'
#define DNA_POSITIVE  'T'
#define DNA_CYTOSINE  'C'

/* ═══════════════════════════════════════════════════════
 * TERNARY STATE (maps to analog consensus phase states)
 * ═══════════════════════════════════════════════════════ */
typedef enum {
    TERNARY_NEGATIVE = 0,   /* φ-modulated: [0, 1) */
    TERNARY_NEUTRAL  = 1,   /* φ-modulated: [1, 2) */
    TERNARY_POSITIVE = 2    /* φ-modulated: [2, 3) */
} TernaryState;

/* ═══════════════════════════════════════════════════════
 * CONTINUOUS FUNCTION – replaces filesystem state
 * ═══════════════════════════════════════════════════════ */
typedef struct {
    double      *samples;
    size_t       count;
    double       mean;
    double       variance;
    double       phi_weight;
    TernaryState state;
} ContinuousFunction;

/* ═══════════════════════════════════════════════════════
 * FOURIER BASIS (φ-harmonic)
 * ═══════════════════════════════════════════════════════ */
typedef struct {
    double coeff_re[FOURIER_COEFFS];   /* real part of n-th φ-harmonic coefficient  */
    double coeff_im[FOURIER_COEFFS];   /* imaginary part                            */
    double cos_basis[FOURIER_COEFFS];
    double sin_basis[FOURIER_COEFFS];
    double mean;
    double scale;
    double temporal_phase;
} FourierBasis;

/* ═══════════════════════════════════════════════════════
 * DCT BASIS (real-valued alternative)
 * ═══════════════════════════════════════════════════════ */
typedef struct {
    double coefficients[DCT_COEFFS];
    double mean;
    double scale;
} DCTBasis;

/* ═══════════════════════════════════════════════════════
 * BREATHING SEED (POTSafeMath v9.3)
 * ═══════════════════════════════════════════════════════ */
typedef struct {
    double   vector[VECTOR_DIM];
    uint64_t seed_id;
    double   fitness;
    double   phi_weight;
    double   breathing_phase;
} BreathingSeed;

/* ═══════════════════════════════════════════════════════
 * HOLOGRAPHIC GLYPH
 * ═══════════════════════════════════════════════════════ */
typedef struct {
    char         projected_char;
    char         dna_sequence[5];
    TernaryState ternary_state;
    double       breathing_phase;
    double       temporal_phase;
    double       spatial_freq;
    uint64_t     timestamp;
    double       real_field[4];
    double       imag_field[4];
    double       phase_field[4];
} HolographicGlyph;

/* ═══════════════════════════════════════════════════════
 * ONION SHELL CHECKPOINT
 * ═══════════════════════════════════════════════════════ */
typedef struct {
    uint64_t operation_id;
    uint64_t timestamp;
    uint8_t  state_hash[32];
    char     dna_sequence[256];
    uint8_t  shell_layer_1[32];
    uint8_t  shell_layer_2[32];
    uint8_t  shell_layer_3[32];
    double   breathing_signature[BREATHING_SEEDS];
} OnionShellCheckpoint;

/* ═══════════════════════════════════════════════════════
 * VECTOR TRANSFORM (replaces "process")
 * ═══════════════════════════════════════════════════════ */
typedef struct VectorTransform {
    void (*apply)(const struct VectorTransform *transform,
                  const ContinuousFunction     *input,
                  void                         *output);
    void       *basis_data;
    const char *name;
    uint32_t    input_dim;
    uint32_t    output_dim;
} VectorTransform;

/* ═══════════════════════════════════════════════════════
 * VECTOR CONTEXT (replaces "namespace")
 * ═══════════════════════════════════════════════════════ */
typedef struct {
    uint64_t       context_id;

    ContinuousFunction k_trajectory;
    ContinuousFunction gamma_trajectory;
    ContinuousFunction phase_trajectory;

    FourierBasis   k_fourier;
    FourierBasis   gamma_fourier;
    FourierBasis   phase_fourier;

    DCTBasis       k_dct;
    DCTBasis       gamma_dct;
    DCTBasis       phase_dct;

    BreathingSeed  seeds[BREATHING_SEEDS];
    uint32_t       breathing_iterations;

    HolographicGlyph       glyph;
    OnionShellCheckpoint  *checkpoints;
    uint32_t               checkpoint_count;
    uint32_t               checkpoint_capacity;

    char  *dna_ledger;
    size_t dna_length;
} VectorContext;

/* ═══════════════════════════════════════════════════════
 * FRAMEWORK CONTAINER (replaces Docker)
 * ~20 KB of math instead of 400 MB of bloat
 * ═══════════════════════════════════════════════════════ */
typedef struct {
    char         name[256];
    uint64_t     container_id;
    uint64_t     creation_time;

    VectorContext    context;
    VectorTransform  fourier_encode;
    VectorTransform  fourier_decode;
    VectorTransform  dct_encode;
    VectorTransform  dct_decode;
    VectorTransform  sha256_hash_transform;

    struct {
        uint64_t transform_count;
        uint64_t vector_operations;
        uint64_t bytes_encoded;
        uint64_t bytes_decoded;
        double   compression_ratio;
    } stats;

    bool initialized;
    bool active;
} FrameworkContainer;

/* ═══════════════════════════════════════════════════════
 * PUBLIC API
 * ═══════════════════════════════════════════════════════ */

FrameworkContainer *container_create(const char *name);
void                container_destroy(FrameworkContainer *container);
bool                container_initialize(FrameworkContainer *container);

bool context_set_trajectory(VectorContext *ctx,
                             const double *k_samples,     size_t k_count,
                             const double *gamma_samples,  size_t gamma_count,
                             const double *phase_samples,  size_t phase_count);
void context_clear(VectorContext *ctx);

void transform_fourier_encode(VectorContext *ctx);
void transform_fourier_decode(VectorContext *ctx);
void transform_dct_encode(VectorContext *ctx);
void transform_dct_decode(VectorContext *ctx);

void   breathing_initialize_seeds(VectorContext *ctx);
void   breathing_perform_cycle(VectorContext *ctx, int iterations);
double breathing_compute_fitness(const BreathingSeed *seed, const double *target);

HolographicGlyph glyph_generate(const VectorContext *ctx, uint32_t index, uint64_t timestamp);
char             glyph_project_to_unicode(const HolographicGlyph *glyph);
void             glyph_compute_interference(HolographicGlyph *glyph);

OnionShellCheckpoint *checkpoint_create(const VectorContext *ctx, uint64_t op_id);
bool                  checkpoint_verify(const OnionShellCheckpoint *checkpoint);
bool                  checkpoint_restore(VectorContext *ctx, const OnionShellCheckpoint *checkpoint);

void         dna_encode_state(const VectorContext *ctx, char *dna_out, size_t max_len);
TernaryState dna_classify_ternary(double value, uint64_t operation_id);
char         dna_map_state(TernaryState state);

void     sha256_hash(const void *data, size_t len, uint8_t hash_out[32]);
double   phi_modulate(double value, double phase);
uint64_t phi_hash(const void *data, size_t len);

void   container_print_stats(const FrameworkContainer *container);
double container_get_compression_ratio(const FrameworkContainer *container);

#endif /* VECTOR_CONTAINER_H */
