#!/usr/bin/env python3
"""List items from PA memory.

Usage:
    memory-list.py [category] [--all]
    memory-list.py                    # All active items
    memory-list.py preferences        # Just preferences
    memory-list.py --all              # Include deprecated items
"""

import json
import sys
from pathlib import Path

MEMORY_DIR = Path.home() / ".claude/state/personal-assistant/memory"

CATEGORIES = {
    "preferences": "preferences.json",
    "decisions": "decisions.json",
    "projects": "projects.json",
    "facts": "facts.json",
}


def load_memory(category: str) -> list:
    """Load memory items from a category."""
    filepath = MEMORY_DIR / CATEGORIES.get(category, f"{category}.json")
    if filepath.exists():
        with open(filepath) as f:
            data = json.load(f)
            return data.get("items", [])
    return []


def print_items(category: str, items: list, show_all: bool):
    """Print items in a category."""
    if not items:
        return

    active = [i for i in items if i.get("status") == "active"]
    deprecated = [i for i in items if i.get("status") == "deprecated"]

    if not active and not (show_all and deprecated):
        return

    print(f"\n📁 {category.title()}")
    print("─" * 40)

    for item in active:
        date = item.get("date", "unknown")
        content = item.get("content", "")
        print(f"  [{date}] {content}")

    if show_all and deprecated:
        print(f"\n  (deprecated: {len(deprecated)} items)")
        for item in deprecated[:3]:
            content = item.get("content", "")
            print(f"  ✗ {content[:50]}...")


def main():
    show_all = "--all" in sys.argv
    args = [a for a in sys.argv[1:] if not a.startswith("--")]

    category_filter = args[0] if args else None

    print("📝 PA Memory")

    if category_filter:
        # Single category
        if category_filter not in CATEGORIES:
            print(f"Error: Unknown category '{category_filter}'")
            print(f"Valid: {', '.join(CATEGORIES.keys())}")
            sys.exit(1)

        items = load_memory(category_filter)
        print_items(category_filter, items, show_all)
    else:
        # All categories
        for category in CATEGORIES:
            items = load_memory(category)
            print_items(category, items, show_all)

    print()


if __name__ == "__main__":
    main()