#!/usr/bin/env python3
"""
Analyze Flipper Zero signature database

Parses all Flipper Zero .sub files and creates a comprehensive device signature database
"""

import sys
from pathlib import Path
from collections import defaultdict
from typing import Dict, List

# Add project root to path
sys.path.insert(0, str(Path(__file__).parent.parent))

from src.parser.sub_parser import SubFileParser


def analyze_flipper_database(flipper_dir: Path):
    """Analyze all Flipper Zero .sub files"""

    print("="*80)
    print("FLIPPER ZERO SIGNATURE DATABASE ANALYSIS")
    print("="*80)
    print()

    parser = SubFileParser()

    # Find all .sub files
    sub_files = list(flipper_dir.glob('**/*.sub'))
    print(f"Found {len(sub_files)} Flipper Zero .sub files\n")

    # Parse all files
    signatures = []
    parse_errors = []

    for sub_file in sub_files:
        try:
            metadata = parser.parse(str(sub_file))

            # Extract device name from path
            device_name = sub_file.stem

            signatures.append({
                'filename': sub_file.name,
                'device_name': device_name,
                'path': str(sub_file.relative_to(flipper_dir)),
                'frequency': metadata.frequency,
                'protocol': metadata.protocol,
                'file_format': metadata.file_format,
                'modulation': metadata.modulation,
                'bit_length': metadata.bit_length,
                'has_raw_data': bool(metadata.raw_data),
                'raw_samples': len(metadata.raw_data) if metadata.raw_data else 0
            })
        except Exception as e:
            parse_errors.append((sub_file.name, str(e)))

    print(f"Successfully parsed: {len(signatures)} files")
    print(f"Parse errors: {len(parse_errors)} files\n")

    # Analyze by frequency
    print("-"*80)
    print("FREQUENCY DISTRIBUTION")
    print("-"*80)

    freq_groups = defaultdict(list)
    for sig in signatures:
        freq_mhz = sig['frequency'] / 1e6 if sig['frequency'] else 0
        freq_groups[freq_mhz].append(sig)

    for freq in sorted(freq_groups.keys()):
        if freq > 0:
            count = len(freq_groups[freq])
            print(f"{freq:8.2f} MHz: {count:3d} devices")

    # Analyze by protocol
    print(f"\n{'-'*80}")
    print("PROTOCOL DISTRIBUTION")
    print("-"*80)

    protocol_groups = defaultdict(list)
    for sig in signatures:
        proto = sig['protocol'] or 'RAW'
        protocol_groups[proto].append(sig)

    for proto in sorted(protocol_groups.keys(), key=lambda x: len(protocol_groups[x]), reverse=True)[:15]:
        count = len(protocol_groups[proto])
        print(f"{proto:30s}: {count:3d} devices")

    # Analyze by format
    print(f"\n{'-'*80}")
    print("FILE FORMAT DISTRIBUTION")
    print("-"*80)

    format_groups = defaultdict(list)
    for sig in signatures:
        format_groups[sig['file_format']].append(sig)

    for fmt in sorted(format_groups.keys()):
        count = len(format_groups[fmt])
        print(f"{fmt:10s}: {count:3d} files")

    # Show sample devices by frequency band
    print(f"\n{'-'*80}")
    print("SAMPLE DEVICES BY FREQUENCY BAND")
    print("-"*80)

    # Group into common RF bands
    bands = {
        '300-350 MHz (Garage/Gate)': (300, 350),
        '400-450 MHz (Key Fobs/Remotes)': (400, 450),
        '800-900 MHz (Sensors/Utility)': (800, 900),
        '900-930 MHz (ISM Band - US)': (900, 930)
    }

    for band_name, (min_freq, max_freq) in bands.items():
        matching = [s for s in signatures
                   if min_freq <= (s['frequency']/1e6) <= max_freq]

        print(f"\n{band_name}: {len(matching)} devices")

        # Show first 10
        for sig in matching[:10]:
            print(f"  - {sig['device_name']:40s} {sig['frequency']/1e6:7.2f} MHz  {sig['protocol'] or 'RAW'}")

    return signatures, parse_errors


def main():
    """Main entry point"""

    flipper_dir = Path(__file__).parent.parent / 'signatures' / 'flipperzero-firmware'

    if not flipper_dir.exists():
        print(f"❌ Flipper Zero directory not found: {flipper_dir}")
        print("Run: git clone https://github.com/flipperdevices/flipperzero-firmware.git")
        return 1

    signatures, errors = analyze_flipper_database(flipper_dir)

    # Summary
    print(f"\n{'='*80}")
    print("SUMMARY")
    print(f"{'='*80}")
    print(f"Total signatures: {len(signatures)}")
    print(f"Parse errors: {len(errors)}")
    print(f"\nThese signatures can now be imported into GigLez database")
    print(f"for device matching against wardriving captures.")
    print("="*80)

    return 0


if __name__ == '__main__':
    sys.exit(main())