#!/usr/bin/env python3
"""
Simple MIRA MCP Gateway - Minimum Viable Implementation
Provides basic smart command routing until full MCP server is ready
"""

import logging
from typing import Dict, Any, Optional
from pathlib import Path
import sys
from datetime import datetime

# Add parent directory to path for imports
sys.path.append(str(Path(__file__).parent.parent))

from core.memory.memory_manager import MemoryManager
from core.mira_path_resolver import get_mira_memory_dir
from utils.logging import setup_logger

class SimpleMIRAGateway:
    """Simple gateway for basic MCP functionality"""
    
    def __init__(self):
        self.memory_dir = get_mira_memory_dir()
        self.memory_manager = MemoryManager()
        self.logger = setup_logger(__name__)
        
    def route_tool_call(self, tool_name: str, arguments: Dict[str, Any]) -> Dict[str, Any]:
        """Route MCP tool calls to appropriate handlers"""
        try:
            if tool_name == "mira_ask":
                return self._handle_ask(arguments)
            elif tool_name == "mira_remember":
                return self._handle_remember(arguments)
            elif tool_name == "mira_insights":
                return self._handle_insights(arguments)
            elif tool_name == "mira_status":
                return self._handle_status(arguments)
            elif tool_name == "mira_sync":
                return self._handle_sync(arguments)
            elif tool_name == "mira_config":
                return self._handle_config(arguments)
            elif tool_name == "mira_smart_default":
                return self._handle_smart_default(arguments)
            else:
                return {
                    "success": False,
                    "error": f"Unknown MCP tool: {tool_name}"
                }
        except Exception as e:
            self.logger.error(f"Error in tool routing: {e}")
            return {
                "success": False,
                "error": f"Tool execution failed: {str(e)}"
            }
    
    def _handle_ask(self, args: Dict[str, Any]) -> Dict[str, Any]:
        """Handle universal search (mira ask)"""
        query = args.get("query", "")
        if not query:
            return {"success": False, "error": "No query provided"}
        
        try:
            # Use basic memory search for now
            results = self.memory_manager.search_memories(query, limit=5)
            return {
                "success": True,
                "data": {
                    "query": query,
                    "results": results,
                    "strategy": "basic_search",
                    "count": len(results)
                }
            }
        except Exception as e:
            # Fallback response
            return {
                "success": True,
                "data": {
                    "query": query,
                    "results": [],
                    "strategy": "fallback",
                    "message": "Search system initializing - try again in a moment",
                    "count": 0
                }
            }
    
    def _handle_remember(self, args: Dict[str, Any]) -> Dict[str, Any]:
        """Handle universal storage (mira remember)"""
        content = args.get("content", "")
        if not content:
            return {"success": False, "error": "No content provided"}
        
        try:
            # Use basic memory storage
            memory_id = self.memory_manager.store_memory(content, memory_type="user_memory")
            return {
                "success": True,
                "data": {
                    "memory_id": memory_id,
                    "content": content,
                    "category": "general",
                    "storage": "standard"
                }
            }
        except Exception as e:
            self.logger.error(f"Error storing memory: {e}")
            return {"success": False, "error": f"Storage failed: {str(e)}"}
    
    def _handle_insights(self, args: Dict[str, Any]) -> Dict[str, Any]:
        """Handle proactive insights (mira insights)"""
        return {
            "success": True,
            "data": {
                "insights": [
                    {
                        "type": "system_status",
                        "priority": "medium",
                        "message": "MCP system is initializing - basic functionality available",
                        "timestamp": "2025-06-13T11:55:00Z"
                    }
                ],
                "count": 1,
                "status": "initializing"
            }
        }
    
    def _handle_status(self, args: Dict[str, Any]) -> Dict[str, Any]:
        """Handle system status (mira status)"""
        return {
            "success": True,
            "data": {
                "timestamp": datetime.now().isoformat(),
                "system_status": "operational",
                "mcp_status": "basic_mode",
                "memory_system": "available",
                "intelligence_systems": "initializing",
                "message": "MIRA is operational with basic MCP functionality"
            }
        }
    
    def _handle_sync(self, args: Dict[str, Any]) -> Dict[str, Any]:
        """Handle data sync (mira sync)"""
        operation = args.get("operation", "status")
        return {
            "success": True,
            "data": {
                "operation": operation,
                "status": "not_implemented",
                "message": "Sync functionality coming soon"
            }
        }
    
    def _handle_config(self, args: Dict[str, Any]) -> Dict[str, Any]:
        """Handle configuration (mira config)"""
        operation = args.get("operation", "status")
        return {
            "success": True,
            "data": {
                "operation": operation,
                "mcp_installed": True,
                "gateway_mode": "simple",
                "status": "functional"
            }
        }
    
    def _handle_smart_default(self, args: Dict[str, Any]) -> Dict[str, Any]:
        """Handle smart default action (mira with no args)"""
        return {
            "success": True,
            "data": {
                "greeting": "🌟 Welcome to MIRA Intelligence System",
                "status": "MCP-powered smart commands are now available",
                "available_commands": [
                    "mira ask 'query'",
                    "mira remember 'content'", 
                    "mira insights",
                    "mira status"
                ],
                "message": "Basic MCP functionality is operational. Full intelligence systems are initializing."
            }
        }