"""Superpower Registry for 152 Superpowers.

Provides:
- load_all_superpowers() - Load all 152 superpowers
- get_superpower(id) - Get single superpower by ID
- get_superpowers_by_band(band) - Get all superpowers in band
- calculate_boost(superpower_ids) - Calculate aggregate boost
- search_superpowers(query) - Search superpowers by name/description
"""

import json
from pathlib import Path
from typing import Optional, List, Dict, Any

# Module-level cache
_superpowers: Optional[Dict[int, dict]] = None
_superpowers_list: Optional[List[dict]] = None
_loaded = False
_load_path: Optional[Path] = None


def load_all_superpowers(path: Optional[str] = None) -> None:
    """Load all 152 superpowers from JSON file.
    
    Args:
        path: Optional path to superpowers.json file.
              Defaults to /home/dave/superdave/glyphs/superpowers.json
    """
    global _superpowers, _superpowers_list, _loaded, _load_path
    
    if _loaded:
        return
    
    if path is None:
        path = "/home/dave/superdave/glyphs/superpowers.json"
    
    filepath = Path(path)
    if not filepath.exists():
        raise FileNotFoundError(f"Superpowers file not found: {filepath}")
    
    _load_path = filepath
    
    with open(filepath) as f:
        data = json.load(f)
    
    # Validate count
    if data.get("total") != 152:
        raise ValueError(f"Expected 152 superpowers, got {data.get('total')}")
    
    # Build cache by ID
    _superpowers = {}
    for sp in data.get("superpowers", []):
        _superpowers[sp["id"]] = sp
    
    # Build sorted list
    _superpowers_list = sorted(_superpowers.values(), key=lambda x: x["id"])
    
    _loaded = True


def get_superpower(id: int) -> Optional[dict]:
    """Get a single superpower by ID.
    
    Args:
        id: Superpower ID (1-152)
    
    Returns:
        Superpower dict with id, name, boost_percent, description, band
    """
    if not _loaded:
        load_all_superpowers()
    
    return _superpowers.get(id) if _superpowers else None


def list_superpower_ids() -> List[int]:
    """List all superpower IDs (sorted).
    
    Returns:
        List of 152 superpower IDs [1, 2, ..., 152]
    """
    if not _loaded:
        load_all_superpowers()
    
    return [sp["id"] for sp in _superpowers_list] if _superpowers_list else []


def get_superpowers_by_band(band: str) -> List[dict]:
    """Get all superpowers in a band.
    
    Args:
        band: Band identifier ("A", "B", "C", "D")
    
    Returns:
        List of superpower dicts in that band
    """
    if not _loaded:
        load_all_superpowers()
    
    if not _superpowers_list:
        return []
    
    return [sp for sp in _superpowers_list if sp.get("band") == band]


def get_superpowers_by_bands(bands: List[str]) -> List[dict]:
    """Get all superpowers in multiple bands.
    
    Args:
        bands: List of band identifiers
    
    Returns:
        List of superpower dicts in those bands
    """
    if not _loaded:
        load_all_superpowers()
    
    if not _superpowers_list:
        return []
    
    return [sp for sp in _superpowers_list if sp.get("band") in bands]


def calculate_boost(superpower_ids: List[int]) -> float:
    """Calculate aggregate boost from superpower IDs.
    
    Formula: power_boost = 1.0 + Σ(boost_percent) / 100.0
    
    Args:
        superpower_ids: List of superpower IDs
    
    Returns:
        Aggregate boost multiplier (e.g., 2.0 = 200% effectiveness)
    """
    if not _loaded:
        load_all_superpowers()
    
    total_boost = 0.0
    for id in superpower_ids:
        sp = _superpowers.get(id)
        if sp:
            total_boost += sp.get("boost_percent", 0) / 100.0
    
    return 1.0 + total_boost


def search_superpowers(query: str, fields: Optional[List[str]] = None, limit: int = 20) -> List[dict]:
    """Search superpowers by query.
    
    Args:
        query: Search string (case-insensitive substring)
        fields: Fields to search (default: ["name", "description"])
        limit: Maximum results
    
    Returns:
        List of matching superpower dicts
    """
    if not _loaded:
        load_all_superpowers()
    
    if not _superpowers_list:
        return []
    
    if fields is None:
        fields = ["name", "description"]
    
    query_lower = query.lower()
    results = []
    
    for sp in _superpowers_list:
        for field in fields:
            value = sp.get(field, "")
            if isinstance(value, str) and query_lower in value.lower():
                results.append(sp)
                break
        
        if len(results) >= limit:
            break
    
    return results


def super_stats() -> dict:
    """Get statistics about the superpower registry.
    
    Returns:
        Dict with total, bands, loaded status, etc.
    """
    if not _loaded:
        load_all_superpowers()
    
    if not _superpowers_list:
        return {
            "total": 0,
            "bands": {},
            "loaded": False,
        }
    
    # Count by band
    band_counts = {}
    for sp in _superpowers_list:
        band = sp.get("band")
        band_counts[band] = band_counts.get(band, 0) + 1
    
    return {
        "total": len(_superpowers_list),
        "band_counts": band_counts,
        "loaded": _loaded,
        "load_path": str(_load_path) if _load_path else None,
    }


# Global singleton instance
_adapter_instance: Optional[Any] = None


def get_superpower_names(superpower_ids: List[int]) -> List[str]:
    """Get names for a list of superpower IDs.
    
    Args:
        superpower_ids: List of IDs
    
    Returns:
        List of superpower names
    """
    if not _loaded:
        load_all_superpowers()
    
    names = []
    for id in superpower_ids:
        sp = _superpowers.get(id)
        if sp:
            names.append(sp.get("name", f"SP{id}"))
    
    return names