"""
Core functionality for memorecall package.
"""

from typing import Dict, List, Optional, Any
from datetime import datetime


class MemoryRecall:
    """
    Main class for memory and recall functionality.
    This is currently a placeholder implementation.
    """
    
    def __init__(self, config: Optional[Dict[str, Any]] = None):
        """Initialize MemoryRecall with optional configuration."""
        self.config = config or {}
        self._memories: List[Dict[str, Any]] = []
    
    def store(self, memory: str, tags: Optional[List[str]] = None) -> bool:
        """
        Store a memory with optional tags.
        
        Args:
            memory: The memory content to store
            tags: Optional list of tags to associate with the memory
            
        Returns:
            True if successfully stored
        """
        entry = {
            "content": memory,
            "tags": tags or [],
            "timestamp": datetime.now().isoformat(),
            "id": len(self._memories)
        }
        self._memories.append(entry)
        return True
    
    def recall(self, query: Optional[str] = None, tags: Optional[List[str]] = None) -> List[Dict[str, Any]]:
        """
        Recall memories based on query and/or tags.
        
        Args:
            query: Optional search query to filter memories
            tags: Optional list of tags to filter by
            
        Returns:
            List of matching memory entries
        """
        if not query and not tags:
            return self._memories.copy()
        
        results = []
        for memory in self._memories:
            match = False
            
            if query and query.lower() in memory["content"].lower():
                match = True
            
            if tags and any(tag in memory["tags"] for tag in tags):
                match = True
                
            if match:
                results.append(memory)
        
        return results
    
    def clear(self) -> bool:
        """
        Clear all stored memories.
        
        Returns:
            True if successfully cleared
        """
        self._memories.clear()
        return True
    
    def count(self) -> int:
        """
        Get the number of stored memories.
        
        Returns:
            Number of memories stored
        """
        return len(self._memories)
    
    def get_by_id(self, memory_id: int) -> Optional[Dict[str, Any]]:
        """
        Get a specific memory by its ID.
        
        Args:
            memory_id: The ID of the memory to retrieve
            
        Returns:
            Memory entry if found, None otherwise
        """
        for memory in self._memories:
            if memory.get("id") == memory_id:
                return memory
        return None