"""
Experimental Validation Framework - Fractal Compass v4.0
========================================================

Connects theoretical predictions to experimental benchmarks:
- IBM Quantum system parameters
- Diamond NV center measurements
- LHC bounds on extra dimensions
- Atomic clock precision tests
- Gravitational wave detector sensitivity

References:
[1] IBM Quantum Backend Properties
[2] Doherty et al., Phys.Rep.528:1-45,2013 (Diamond NV)
[3] CMS Collaboration, JHEP 1807:208,2018 (Extra dimensions)
[4] LIGO Collaboration, Phys.Rev.Lett.116:061102,2016
"""

import numpy as np
import scipy.constants as const
import scipy.stats
from typing import Dict, List, Tuple, Any
from dataclasses import dataclass
import matplotlib.pyplot as plt

@dataclass
class ExperimentalBenchmark:
    """Container for experimental benchmark data."""
    name: str
    system_type: str
    parameters: Dict[str, float]
    uncertainties: Dict[str, float]
    reference: str
    validation_method: str

class ExperimentalValidator:
    """
    Validates theoretical predictions against experimental benchmarks.

    Implements multiple validation protocols:
    1. Parameter consistency checks
    2. Statistical significance testing
    3. Systematic error analysis
    4. Cross-validation with independent experiments
    """

    def __init__(self):
        self.benchmarks = self._load_experimental_benchmarks()
        self.validation_results = {}

    def _load_experimental_benchmarks(self) -> List[ExperimentalBenchmark]:
        """Load validated experimental benchmarks from literature."""
        benchmarks = []

        # IBM Quantum Systems (from hardware specifications)
        ibm_benchmark = ExperimentalBenchmark(
            name="IBM_Quantum_Lima",
            system_type="superconducting_transmon",
            parameters={
                'T1_mean': 121e-6,      # Relaxation time (s)
                'T2_mean': 89e-6,       # Dephasing time (s)
                'single_gate_error': 3.2e-4,
                'cx_gate_error': 7.8e-3,
                'readout_error': 2.1e-2,
                'frequency': 4.97e9,     # Qubit frequency (Hz)
                'anharmonicity': -330e6  # MHz
            },
            uncertainties={
                'T1_std': 15e-6,
                'T2_std': 12e-6,
                'single_gate_std': 0.5e-4,
                'cx_gate_std': 1.2e-3
            },
            reference="IBM Quantum Backend Properties, 2024",
            validation_method="process_tomography"
        )
        benchmarks.append(ibm_benchmark)

        # Diamond NV Centers (from Doherty et al.)
        nv_benchmark = ExperimentalBenchmark(
            name="Diamond_NV_Ensemble",
            system_type="solid_state_spin",
            parameters={
                'T1_bulk': 6e-3,        # Bulk diamond T1 (s)
                'T2_bulk': 1.8e-3,      # Bulk T2 (s)
                'T2_echo': 2.3e-3,      # Echo coherence (s)
                'zero_field_splitting': 2.87e9,  # Hz
                'gyromagnetic_ratio': 28.024e9,  # Hz/T
                'hyperfine_coupling': 2.16e6     # Hz (14N)
            },
            uncertainties={
                'T1_std': 0.5e-3,
                'T2_std': 0.2e-3,
                'T2_echo_std': 0.3e-3
            },
            reference="Doherty et al., Phys.Rep.528:1-45,2013",
            validation_method="ramsey_spectroscopy"
        )
        benchmarks.append(nv_benchmark)

        # LHC Extra Dimension Bounds (from CMS)
        lhc_benchmark = ExperimentalBenchmark(
            name="CMS_LED_Search",
            system_type="collider_physics",
            parameters={
                'led_scale_limit': 5.3e12,      # GeV (95% CL)
                'rs1_mass_limit': 4.1e12,       # GeV (RS graviton)
                'add_scale_limit': 7.2e12,      # GeV (ADD model)
                'center_mass_energy': 13e12,    # GeV (13 TeV)
                'integrated_luminosity': 137e15 # pb^-1
            },
            uncertainties={
                'led_scale_std': 0.3e12,
                'systematic_error': 0.15        # 15% systematic
            },
            reference="CMS Collaboration, JHEP 1807:208,2018",
            validation_method="missing_energy_analysis"
        )
        benchmarks.append(lhc_benchmark)

        # LIGO Gravitational Waves (sensitivity to extra dimensions)
        ligo_benchmark = ExperimentalBenchmark(
            name="LIGO_O3_Sensitivity",
            system_type="gravitational_interferometer",
            parameters={
                'strain_sensitivity': 1e-23,    # Characteristic strain
                'frequency_range': [20, 2000],  # Hz
                'arm_length': 4000,             # meters
                'laser_power': 200,             # watts
                'mirror_mass': 40               # kg
            },
            uncertainties={
                'calibration_error': 0.05,     # 5% calibration uncertainty
                'statistical_error': 1e-24     # Statistical noise floor
            },
            reference="LIGO Collaboration, Phys.Rev.D100:062001,2019",
            validation_method="matched_filter_analysis"
        )
        benchmarks.append(ligo_benchmark)

        return benchmarks

    def validate_quantum_parameters(self, theoretical_params: Dict[str, float]) -> Dict[str, Any]:
        """
        Validate quantum decoherence parameters against experimental benchmarks.

        Args:
            theoretical_params: Dictionary of theoretical predictions

        Returns:
            Validation results with statistical significance
        """
        results = {}

        # Find relevant quantum benchmarks
        quantum_benchmarks = [b for b in self.benchmarks
                            if b.system_type in ['superconducting_transmon', 'solid_state_spin']]

        for benchmark in quantum_benchmarks:
            benchmark_results = {}

            # T1 validation
            if 'T1' in theoretical_params and 'T1_mean' in benchmark.parameters:
                t1_theory = theoretical_params['T1']
                t1_exp = benchmark.parameters['T1_mean']
                t1_err = benchmark.uncertainties['T1_std']

                # Z-score for significance testing
                z_score = abs(t1_theory - t1_exp) / t1_err
                p_value = 2 * (1 - scipy.stats.norm.cdf(abs(z_score)))

                benchmark_results['T1'] = {
                    'theoretical': t1_theory,
                    'experimental': t1_exp,
                    'uncertainty': t1_err,
                    'z_score': z_score,
                    'p_value': p_value,
                    'consistent': p_value > 0.05  # 95% confidence
                }

            # T2 validation
            if 'T2' in theoretical_params and 'T2_mean' in benchmark.parameters:
                t2_theory = theoretical_params['T2']
                t2_exp = benchmark.parameters['T2_mean']
                t2_err = benchmark.uncertainties['T2_std']

                z_score = abs(t2_theory - t2_exp) / t2_err
                p_value = 2 * (1 - scipy.stats.norm.cdf(abs(z_score)))

                benchmark_results['T2'] = {
                    'theoretical': t2_theory,
                    'experimental': t2_exp,
                    'uncertainty': t2_err,
                    'z_score': z_score,
                    'p_value': p_value,
                    'consistent': p_value > 0.05
                }

            results[benchmark.name] = benchmark_results

        return results

    def validate_extra_dimension_bounds(self, theoretical_bounds: Dict[int, float]) -> Dict[str, Any]:
        """
        Validate extra dimension compactification against LHC bounds.

        Args:
            theoretical_bounds: Dictionary mapping dimension -> scale (GeV)

        Returns:
            Validation results comparing theory vs experiment
        """
        results = {}

        # Get LHC benchmark
        lhc_benchmark = next((b for b in self.benchmarks if b.name == "CMS_LED_Search"), None)
        if not lhc_benchmark:
            return {'error': 'No LHC benchmark found'}

        # LED scale comparison
        if 'led_scale' in theoretical_bounds:
            theory_scale = theoretical_bounds['led_scale']
            exp_limit = lhc_benchmark.parameters['led_scale_limit']
            exp_error = lhc_benchmark.uncertainties['led_scale_std']

            # Check if theory respects experimental bound
            consistent = theory_scale < exp_limit
            significance = (exp_limit - theory_scale) / exp_error

            results['led_validation'] = {
                'theoretical_scale': theory_scale,
                'experimental_limit': exp_limit,
                'uncertainty': exp_error,
                'consistent_with_bounds': consistent,
                'significance': significance,
                'safety_margin': (exp_limit - theory_scale) / exp_limit
            }

        # RS graviton mass validation
        if 'rs_graviton_mass' in theoretical_bounds:
            theory_mass = theoretical_bounds['rs_graviton_mass']
            exp_limit = lhc_benchmark.parameters['rs1_mass_limit']

            results['rs_validation'] = {
                'theoretical_mass': theory_mass,
                'experimental_limit': exp_limit,
                'consistent': theory_mass > exp_limit,  # Mass should be above limit
                'exclusion_power': theory_mass / exp_limit
            }

        return results

    def cross_validate_systems(self, system1_results: Dict, system2_results: Dict) -> Dict[str, Any]:
        """
        Cross-validate results between different experimental systems.

        Checks for consistency between different physical implementations
        of the same theoretical framework.
        """
        cross_validation = {}

        # Find common parameters
        common_params = set(system1_results.keys()) & set(system2_results.keys())

        for param in common_params:
            if isinstance(system1_results[param], dict) and isinstance(system2_results[param], dict):
                if 'theoretical' in system1_results[param] and 'theoretical' in system2_results[param]:
                    val1 = system1_results[param]['theoretical']
                    val2 = system2_results[param]['theoretical']
                    err1 = system1_results[param].get('uncertainty', 0)
                    err2 = system2_results[param].get('uncertainty', 0)

                    # Combined uncertainty
                    combined_err = np.sqrt(err1**2 + err2**2)

                    # Consistency test
                    if combined_err > 0:
                        consistency_z = abs(val1 - val2) / combined_err
                        consistent = consistency_z < 2.0  # 2σ criterion
                    else:
                        consistent = abs(val1 - val2) < 1e-10
                        consistency_z = 0

                    cross_validation[param] = {
                        'value1': val1,
                        'value2': val2,
                        'combined_uncertainty': combined_err,
                        'consistency_z': consistency_z,
                        'consistent': consistent
                    }

        return cross_validation

    def generate_validation_report(self, all_results: Dict[str, Any]) -> str:
        """Generate comprehensive validation report."""
        report = []
        report.append("EXPERIMENTAL VALIDATION REPORT")
        report.append("=" * 50)
        report.append("")

        # Summary statistics
        total_tests = 0
        passed_tests = 0

        for system, results in all_results.items():
            report.append(f"System: {system}")
            report.append("-" * 30)

            if isinstance(results, dict):
                for param, data in results.items():
                    if isinstance(data, dict) and 'consistent' in data:
                        total_tests += 1
                        if data['consistent']:
                            passed_tests += 1
                            status = "PASS"
                        else:
                            status = "FAIL"

                        if 'z_score' in data:
                            report.append(f"{param}: {status} (Z={data['z_score']:.2f}, p={data.get('p_value', 0):.3f})")
                        else:
                            report.append(f"{param}: {status}")
            report.append("")

        # Overall summary
        pass_rate = passed_tests / total_tests if total_tests > 0 else 0
        report.append(f"OVERALL VALIDATION: {passed_tests}/{total_tests} tests passed ({pass_rate:.1%})")

        if pass_rate >= 0.8:
            report.append("CONCLUSION: Theory consistent with experimental data")
        elif pass_rate >= 0.6:
            report.append("CONCLUSION: Partial consistency, requires refinement")
        else:
            report.append("CONCLUSION: Theory inconsistent with experimental data")

        return "\n".join(report)
