#!/usr/bin/env python3
"""
Import Flipper Zero signatures into SQLite database

Uses SQLite for immediate testing without PostgreSQL setup
"""

import sys
import sqlite3
from pathlib import Path
from datetime import datetime

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

from src.parser.sub_parser import SubFileParser


def create_sqlite_schema(conn):
    """Create SQLite schema"""

    cursor = conn.cursor()

    # Devices table
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS devices (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            device_name TEXT,
            manufacturer TEXT,
            model TEXT,
            device_type TEXT,
            typical_frequency INTEGER,
            protocol TEXT,
            description TEXT,
            first_seen TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            is_verified BOOLEAN DEFAULT 0,
            source TEXT
        )
    ''')

    # Signatures table
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS signatures (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            device_id INTEGER REFERENCES devices(id),
            protocol TEXT,
            frequency INTEGER,
            modulation TEXT,
            bit_pattern BLOB,
            bit_mask BLOB,
            timing_min INTEGER,
            timing_max INTEGER,
            raw_pattern TEXT,
            confidence_threshold REAL DEFAULT 0.7,
            source TEXT,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
    ''')

    # Indexes
    cursor.execute('CREATE INDEX IF NOT EXISTS idx_sig_freq ON signatures(frequency)')
    cursor.execute('CREATE INDEX IF NOT EXISTS idx_sig_device ON signatures(device_id)')

    conn.commit()


def import_flipper_signature(conn, sub_file: Path, parser: SubFileParser):
    """Import a single Flipper Zero .sub file"""

    try:
        metadata = parser.parse(str(sub_file))

        # Skip if frequency is 0
        if metadata.frequency == 0:
            return None

        cursor = conn.cursor()

        # Determine device type from frequency
        freq_mhz = metadata.frequency / 1e6

        if 300 <= freq_mhz <= 350:
            device_type = 'garage_door'
        elif 400 <= freq_mhz <= 450:
            device_type = 'remote_control'
        elif 800 <= freq_mhz <= 900:
            device_type = 'sensor'
        else:
            device_type = 'unknown'

        # Create device record
        cursor.execute('''
            INSERT INTO devices (device_name, manufacturer, model, device_type,
                               typical_frequency, protocol, description, source)
            VALUES (?, ?, ?, ?, ?, ?, ?, ?)
        ''', (
            sub_file.stem,
            'Unknown',
            sub_file.stem,
            device_type,
            metadata.frequency,
            metadata.protocol or 'RAW',
            f'Imported from Flipper Zero: {sub_file.name}',
            'flipper_zero'
        ))

        device_id = cursor.lastrowid

        # Extract timing info
        timing_min, timing_max = None, None
        raw_pattern = None

        if metadata.raw_data and len(metadata.raw_data) > 0:
            abs_timings = [abs(t) for t in metadata.raw_data]
            timing_min = min(abs_timings)
            timing_max = max(abs_timings)
            raw_pattern = ','.join(map(str, metadata.raw_data[:100]))  # First 100 samples

        # Create signature record
        cursor.execute('''
            INSERT INTO signatures (device_id, protocol, frequency, modulation,
                                  timing_min, timing_max, raw_pattern, source)
            VALUES (?, ?, ?, ?, ?, ?, ?, ?)
        ''', (
            device_id,
            metadata.protocol or 'RAW',
            metadata.frequency,
            metadata.modulation,
            timing_min,
            timing_max,
            raw_pattern,
            'flipper_zero'
        ))

        conn.commit()

        return {
            'device_id': device_id,
            'device_name': sub_file.stem,
            'frequency': metadata.frequency,
            'protocol': metadata.protocol
        }

    except Exception as e:
        return None


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

    print("="*80)
    print("FLIPPER ZERO → SQLite IMPORT")
    print("="*80)
    print()

    # Create/connect to SQLite database
    db_path = Path(__file__).parent.parent / 'giglez.db'

    print(f"Database: {db_path}")

    conn = sqlite3.connect(str(db_path))
    print("✅ Connected to SQLite database\n")

    # Create schema
    print("Creating schema...")
    create_sqlite_schema(conn)
    print("✅ Schema ready\n")

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

    if not flipper_dir.exists():
        print(f"❌ Flipper directory not found: {flipper_dir}")
        return 1

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

    # Import all signatures
    parser = SubFileParser()
    imported = []
    skipped = 0

    print("Importing signatures...")
    for i, sub_file in enumerate(sub_files, 1):
        if i % 10 == 0:
            print(f"  Processed {i}/{len(sub_files)}...")

        result = import_flipper_signature(conn, sub_file, parser)

        if result:
            imported.append(result)
        else:
            skipped += 1

    print(f"✅ Import complete\n")

    # Summary
    print("="*80)
    print("IMPORT SUMMARY")
    print("="*80)
    print(f"Total files:     {len(sub_files)}")
    print(f"Imported:        {len(imported)}")
    print(f"Skipped:         {skipped}")

    # Query database
    cursor = conn.cursor()

    print(f"\nDATABASE CONTENTS")
    print("-"*80)

    cursor.execute("SELECT COUNT(*) FROM devices")
    device_count = cursor.fetchone()[0]
    print(f"Devices:         {device_count}")

    cursor.execute("SELECT COUNT(*) FROM signatures")
    sig_count = cursor.fetchone()[0]
    print(f"Signatures:      {sig_count}")

    # Frequency distribution
    print(f"\nFREQUENCY DISTRIBUTION")
    print("-"*80)

    cursor.execute('''
        SELECT frequency, COUNT(*) as count
        FROM signatures
        GROUP BY frequency
        ORDER BY count DESC
    ''')

    for freq, count in cursor.fetchall():
        print(f"{freq/1e6:8.2f} MHz: {count:3d} devices")

    conn.close()

    print(f"\n{'='*80}")
    print("✅ Database ready at:", db_path)
    print("="*80)

    return 0


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