# HDGL Analog Engine Python Wrapper
# High-performance lattice computation for harmonic field generation

import ctypes
import os
import math
from typing import List, Dict, Any, Optional

class HDGL_Analog_Engine:
    """Python interface to C-based HDGL analog lattice engine"""

    def __init__(self, lib_path: Optional[str] = None):
        """Initialize analog engine from compiled C library"""
        if lib_path is None:
            lib_path = self._find_library()

        if lib_path and os.path.exists(lib_path):
            self.lib = ctypes.CDLL(lib_path)
            self._setup_functions()
            self.lattice = None
            self.enabled = True
            print("[Analog Engine] C library loaded successfully")
        else:
            self.enabled = False
            print("[Analog Engine] C library not found, using fallback mode")

    def _find_library(self):
        """Find compiled analog engine library"""
        possible_names = [
            'hdgl_analog_v26.so',   # Linux
            'hdgl_analog_v26.dll',  # Windows
            'hdgl_analog_v26.dylib' # macOS
        ]

        for name in possible_names:
            if os.path.exists(name):
                return name

        return None

    def _setup_functions(self):
        """Setup C function signatures for lattice operations"""

        # HDGLLattice* lattice_init(int num_instances, int slots_per_instance)
        self.lib.lattice_init.argtypes = [ctypes.c_int, ctypes.c_int]
        self.lib.lattice_init.restype = ctypes.c_void_p

        # void lattice_integrate_rk4(HDGLLattice *lat, double dt_base)
        self.lib.lattice_integrate_rk4.argtypes = [ctypes.c_void_p, ctypes.c_double]
        self.lib.lattice_integrate_rk4.restype = None

        # double prismatic_recursion(HDGLLattice *lat, int idx, double val)
        self.lib.prismatic_recursion.argtypes = [ctypes.c_void_p, ctypes.c_int, ctypes.c_double]
        self.lib.prismatic_recursion.restype = ctypes.c_double

        # Slot4096* lattice_get_slot(HDGLLattice *lat, int idx)
        self.lib.lattice_get_slot.argtypes = [ctypes.c_void_p, ctypes.c_int]
        self.lib.lattice_get_slot.restype = ctypes.c_void_p

        # void lattice_free(HDGLLattice *lat)
        self.lib.lattice_free.argtypes = [ctypes.c_void_p]
        self.lib.lattice_free.restype = None

        # Define Slot4096 structure for data access
        class Slot4096(ctypes.Structure):
            _fields_ = [
                ('bits_mant', ctypes.c_int),
                ('bits_exp', ctypes.c_int),
                ('num_words', ctypes.c_size_t),
                ('exponent', ctypes.c_long),
                ('base', ctypes.c_double),
                ('freq', ctypes.c_double),
                ('phase', ctypes.c_double),
                ('phase_vel', ctypes.c_double),
                ('amp_im', ctypes.c_double),
                ('state_flags', ctypes.c_uint32),
                ('words', ctypes.c_void_p)  # Pointer to arbitrary precision data
            ]

        self.Slot4096 = Slot4096

        # Helper function to get slot data
        self.lib.get_slot_data.argtypes = [ctypes.c_void_p, ctypes.POINTER(Slot4096)]
        self.lib.get_slot_data.restype = None

    def initialize_lattice(self, num_instances: int = 4096, slots_per_instance: int = 4):
        """Initialize HDGL lattice with specified dimensions"""
        if not self.enabled:
            print("[Analog Engine] Fallback mode - lattice simulation disabled")
            return False

        self.lattice = self.lib.lattice_init(num_instances, slots_per_instance)
        if self.lattice:
            self.num_instances = num_instances
            self.slots_per_instance = slots_per_instance
            self.total_slots = num_instances * slots_per_instance
            print(f"[Analog Engine] Lattice initialized: {num_instances} instances, {self.total_slots} total slots")
            return True
        else:
            print("[Analog Engine] Failed to initialize lattice")
            return False

    def evolve_lattice(self, steps: int = 100, dt: float = 1.0/32768.0):
        """Evolve lattice through RK4 integration steps"""
        if not self.enabled or not self.lattice:
            return

        print(f"[Analog Engine] Evolving lattice for {steps} steps (dt={dt:.2e})")

        for i in range(steps):
            self.lib.lattice_integrate_rk4(self.lattice, dt)

            if i % (steps // 10) == 0:  # Progress update every 10%
                print(f"[Analog Engine] Evolution step {i}/{steps}")

        print("[Analog Engine] Lattice evolution complete")

    def compute_prismatic_recursion(self, idx: int, val: float) -> float:
        """Compute prismatic recursion for harmonic field generation"""
        if not self.enabled or not self.lattice:
            # Fallback computation
            phi = 1.618033988749895
            fib_table = [1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987]
            prime_table = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53]

            phi_harm = phi ** (idx % 16)
            fib_harm = fib_table[idx % 16]
            dyadic = 1 << (idx % 16)
            prime_harm = prime_table[idx % 16]
            omega_val = 0.5 + 0.5 * math.sin(idx * 0.01)
            r_dim = abs(val) ** ((idx % 7 + 1) / 8.0)

            return math.sqrt(phi_harm * fib_harm * dyadic * prime_harm * omega_val) * r_dim

        return self.lib.prismatic_recursion(self.lattice, idx, val)

    def get_slot_data(self, idx: int) -> Optional[Dict[str, Any]]:
        """Get data from a specific lattice slot"""
        if not self.enabled or not self.lattice:
            return None

        slot_ptr = self.lib.lattice_get_slot(self.lattice, idx)
        if not slot_ptr:
            return None

        slot = self.Slot4096()
        self.lib.get_slot_data(slot_ptr, ctypes.byref(slot))

        return {
            'bits_mant': slot.bits_mant,
            'bits_exp': slot.bits_exp,
            'exponent': slot.exponent,
            'base': slot.base,
            'freq': slot.freq,
            'phase': slot.phase,
            'phase_vel': slot.phase_vel,
            'amp_im': slot.amp_im,
            'state_flags': slot.state_flags,
            'amplitude': math.sqrt(slot.base**2 + slot.amp_im**2)
        }

    def generate_analog_spiral(self, points: int = 10000) -> List[Dict[str, Any]]:
        """Generate spiral using analog engine computation"""
        if not self.enabled:
            print("[Analog Engine] Using fallback mode for spiral generation")
            return self._generate_fallback_spiral(points)

        print(f"[Analog Engine] Generating {points}-point analog spiral...")

        spiral_data = []
        phi = 1.618033988749895
        golden_angle = 2 * math.pi / phi

        # Evolve lattice to create dynamic field
        self.evolve_lattice(steps=1000)

        for i in range(points):
            # Golden ratio spiral positioning
            angle = i * golden_angle
            base_radius = math.sqrt(i + 1) * phi

            # Use analog engine for harmonic computation
            harmonic_factor = self.compute_prismatic_recursion(i, base_radius)

            # Get lattice slot data for additional modulation
            slot_data = self.get_slot_data(i % self.total_slots) if self.lattice else None

            # Quantum uncertainty from lattice
            uncertainty = 0.01 * math.sqrt(i + 1)
            if slot_data:
                uncertainty *= (1 + 0.1 * math.sin(slot_data['phase']))

            # Final radius with analog modulation
            radius = base_radius * harmonic_factor + uncertainty

            # Position calculation
            x = radius * math.cos(angle)
            y = radius * math.sin(angle)

            # Energy from lattice slot
            energy = slot_data['amplitude'] * phi**(i % 7) if slot_data else harmonic_factor

            # Phase from lattice evolution
            phase = slot_data['phase'] if slot_data else angle

            # Ternary state computation
            ternary_state = 1 if energy > phi else (-1 if energy < 1/phi else 0)

            point = {
                'index': i,
                'angle': angle,
                'radius': radius,
                'x': x,
                'y': y,
                'energy': energy,
                'phase': phase,
                'harmonic_power': harmonic_factor,
                'ternary': ternary_state,
                'evolution_time': i * 0.001,  # Simulated time
                'analog_computed': True
            }

            spiral_data.append(point)

        print(f"[Analog Engine] ✓ Generated {len(spiral_data)} analog spiral points")
        return spiral_data

    def _generate_fallback_spiral(self, points: int) -> List[Dict[str, Any]]:
        """Fallback spiral generation when C library unavailable"""
        print(f"[Analog Engine] Fallback: Generating {points}-point spiral...")

        spiral_data = []
        phi = 1.618033988749895
        golden_angle = 2 * math.pi / phi

        for i in range(points):
            angle = i * golden_angle
            radius = math.sqrt(i + 1) * phi
            x = radius * math.cos(angle)
            y = radius * math.sin(angle)

            point = {
                'index': i,
                'angle': angle,
                'radius': radius,
                'x': x,
                'y': y,
                'energy': phi**(i % 7),
                'phase': angle,
                'harmonic_power': 1.0,
                'ternary': 1 if i % 3 == 0 else (-1 if i % 3 == 1 else 0),
                'evolution_time': i * 0.001,
                'analog_computed': False
            }

            spiral_data.append(point)

        return spiral_data

    def cleanup(self):
        """Clean up lattice resources"""
        if self.enabled and self.lattice:
            self.lib.lattice_free(self.lattice)
            self.lattice = None
            print("[Analog Engine] Lattice resources cleaned up")

# Compile instructions for the analog engine
COMPILE_INSTRUCTIONS = """
To compile the HDGL analog engine as a shared library:

Linux/macOS:
gcc -shared -fPIC -O3 -o hdgl_analog_v26.so hdgl_analog_v26.c -lm

Windows (MinGW):
gcc -shared -O3 -o hdgl_analog_v26.dll hdgl_analog_v26.c -lm

The compiled library enables high-performance analog lattice computation
for harmonic field generation, replacing slow Python implementations.
"""

if __name__ == '__main__':
    print("HDGL Analog Engine Python Wrapper")
    print("=" * 50)
    print(COMPILE_INSTRUCTIONS)

    # Test the analog engine
    engine = HDGL_Analog_Engine()

    if engine.enabled:
        print("\n✅ Analog engine loaded successfully")

        # Initialize lattice
        if engine.initialize_lattice(1024, 4):  # Smaller lattice for testing
            # Generate small spiral
            spiral = engine.generate_analog_spiral(100)
            print(f"\nGenerated {len(spiral)} spiral points")
            print(f"Sample point: {spiral[0]}")

            # Cleanup
            engine.cleanup()
    else:
        print("\n⚠️  Analog engine not found - using fallback mode")
        print("Run compile command above to enable full functionality")