"""
Game Facade - Simplified interface for complex game operations.
"""

import time
from typing import Dict, Any, Optional, List, Tuple
from ..core.game_engine import get_game_engine
from ..core.player import Player


class GameFacade:
    """Facade providing simplified access to game functionality."""
    
    def __init__(self):
        self.engine = get_game_engine()
    
    def start_game(self) -> bool:
        """Start the game engine and all services."""
        return self.engine.start()
    
    def stop_game(self) -> bool:
        """Stop the game engine and all services."""
        return self.engine.stop()
    
    # Player Operations
    def join_game(self, name: str, player_type: str = "human") -> Optional[str]:
        """Join a player to the game."""
        try:
            player_service = self.engine.get_player_service()
            
            # Create player
            player = player_service.create_player(name, player_type)
            
            # Add to world
            success = player_service.add_player_to_world(player)
            
            if success:
                # Notify plugins
                self.engine.get_plugin_service().call_plugin_event('on_player_join', player.id)
                return player.id
            return None
        
        except Exception as e:
            print(f"[GameFacade] Error joining game: {e}")
            return None
    
    def leave_game(self, player_id: str) -> bool:
        """Remove a player from the game."""
        try:
            player_service = self.engine.get_player_service()
            
            # Notify plugins before removal
            self.engine.get_plugin_service().call_plugin_event('on_player_leave', player_id)
            
            return player_service.remove_player_from_world(player_id)
        
        except Exception as e:
            print(f"[GameFacade] Error leaving game: {e}")
            return False
    
    def move_player(self, player_id: str, direction: str) -> Tuple[bool, Dict[str, int], List[str]]:
        """Move a player in specified direction, returning success, new position, and triggered events."""
        from math import sqrt
        success = self.engine.get_player_service().move_player(player_id, direction)
        new_position = {}
        events = []
        if success:
            # Get updated player position
            player = self.engine.get_player_service().get_player(player_id)
            new_position = {'x': player.x, 'y': player.y}
            # Gather world events since movement
            world_events = self.engine.get_world().get_world_events()
            # Extract only new events messages
            events = [ev.get('event') for ev in world_events]
        return success, new_position, events
    
    def get_player_stats(self, player_id: str) -> Dict:
        """Get player statistics."""
        return self.engine.get_player_service().get_player_stats(player_id)
    
    def handle_action(self, player_id: str) -> str:
        """Handle special action: interact with nearest NPC if in range."""
        # Determine proximity
        prox = self.get_proximity_info(player_id)
        nearby = prox.get('nearby_entities', [])
        if nearby:
            npc_id = nearby[0]['id']
            # Interact with NPC via default empty message
            return self.interact_with_npc(player_id, npc_id, "")
        return "No entity nearby to interact."
    
    def get_proximity_info(self, player_id: str) -> Dict[str, Any]:
        """Get nearby entities (NPCs and other players) within interaction range."""
        import math
        result = {'nearby_entities': []}
        # Get player position
        player = self.engine.get_player_service().get_player(player_id)
        if not player:
            return result
        # Check NPCs
        world = self.engine.get_world()
        for npc_id, npc_data in world.get_all_npcs().items():
            dx = player.x - npc_data.get('x', 0)
            dy = player.y - npc_data.get('y', 0)
            distance = math.hypot(dx, dy)
            if distance <= 50:
                result['nearby_entities'].append({'id': npc_id, 'name': npc_data.get('name')})
        # Optionally include other players
        for other_id, other in world.get_all_players().items():
            if other_id == player_id:
                continue
            dx = player.x - other.x
            dy = player.y - other.y
            if math.hypot(dx, dy) <= 50:
                result['nearby_entities'].append({'id': other_id, 'name': other.name})
        return result
    
    # Chat Operations
    def send_chat_message(self, player_id: str, message: str) -> bool:
        """Send a public chat message."""
        try:
            chat_service = self.engine.get_chat_service()
            success = chat_service.send_public_message(player_id, message)
            
            if success:
                # Notify plugins
                self.engine.get_plugin_service().call_plugin_event(
                    'on_chat_message', player_id, message, 'public'
                )
            
            return success
        
        except Exception as e:
            print(f"[GameFacade] Error sending chat: {e}")
            return False
    
    def get_chat_history(self, limit: int = 10) -> List[Dict]:
        """Get recent chat messages."""
        return self.engine.get_chat_service().get_chat_history(limit)
    
    # NPC Operations
    def interact_with_npc(self, player_id: str, npc_id: str, message: str) -> str:
        """Interact with an NPC."""
        return self.engine.get_npc_service().get_npc_response(npc_id, message, player_id)
    
    def get_npc_data(self, npc_id: str) -> Optional[Dict]:
        """Get NPC information."""
        return self.engine.get_npc_service().get_npc(npc_id)
    
    # World State
    def get_game_state(self) -> Dict:
        """Get current game state."""
        return self.engine.get_world().get_world_state()
    
    def get_all_players(self) -> Dict[str, Player]:
        """Get all players in the game."""
        return self.engine.get_player_service().get_all_players()
    
    def get_all_npcs(self) -> Dict[str, Dict]:
        """Get all NPCs in the game."""
        return self.engine.get_npc_service().get_all_npcs()
    
    # MCP Operations
    def register_ai_agent(self, agent_id: str, name: str) -> str:
        """Register an AI agent via MCP."""
        return self.engine.get_mcp_service().register_ai_agent(agent_id, name)
    
    def move_ai_agent(self, agent_id: str, direction: str) -> Dict:
        """Move an AI agent."""
        return self.engine.get_mcp_service().move_agent(agent_id, direction)
    
    def ai_agent_chat(self, agent_id: str, message: str) -> Dict:
        """Send chat message from AI agent."""
        return self.engine.get_mcp_service().send_chat(agent_id, message)
    
    def get_available_npcs(self) -> List[Dict[str, Any]]:
        """Get list of available NPCs with their data for MCP integration."""
        try:
            npcs = self.get_all_npcs()
            available_npcs = []
            
            for npc_id, npc_data in npcs.items():
                available_npcs.append({
                    'id': npc_id,
                    'name': npc_data.get('name', 'Unknown NPC'),
                    'type': npc_data.get('type', 'npc'),
                    'position': {
                        'x': npc_data.get('x', 0),
                        'y': npc_data.get('y', 0)
                    },
                    'description': npc_data.get('description', ''),
                    'dialogue_count': len(npc_data.get('dialogue_history', [])),
                    'active': npc_data.get('active', True)
                })
            
            return available_npcs
        
        except Exception as e:
            print(f"[GameFacade] Error getting available NPCs: {e}")
            return []
    
    def get_available_players(self) -> List[Dict[str, Any]]:
        """Get list of available players with their data for MCP integration."""
        try:
            players = self.get_all_players()
            available_players = []
            
            for player_id, player in players.items():
                available_players.append({
                    'id': player.id,
                    'name': player.name,
                    'type': player.type,
                    'position': {
                        'x': player.x,
                        'y': player.y
                    },
                    'level': player.level,
                    'hp': f"{player.hp}/{player.max_hp}",
                    'gold': player.gold,
                    'experience': player.experience,
                    'last_active': player.last_active,
                    'session_hash': getattr(player, 'session_hash', None)
                })
            
            return available_players
        
        except Exception as e:
            print(f"[GameFacade] Error getting available players: {e}")
            return []
    
    def get_raw_world_data(self) -> Dict[str, Any]:
        """Get comprehensive raw world data without HTML parsing for MCP integration."""
        try:
            return {
                'players': self.get_available_players(),
                'npcs': self.get_available_npcs(),
                'world_state': self.get_game_state(),
                'world_events': self.get_world_events(),
                'chat_history': self.get_chat_history(50),  # More chat history for context
                'system_status': self.get_system_status(),
                'loaded_plugins': self.get_loaded_plugins(),
                'timestamp': time.time()
            }
        
        except Exception as e:
            print(f"[GameFacade] Error getting raw world data: {e}")
            return {
                'error': f"Failed to get raw world data: {str(e)}",
                'timestamp': time.time()
            }
    
    def get_recent_chat_messages(self, limit: int = 20) -> List[Dict]:
        """Get recent chat messages for MCP integration."""
        return self.get_chat_history(limit)
    
    def get_recent_world_events(self, limit: int = 10) -> List[Dict[str, Any]]:
        """Get recent world events for MCP integration."""
        try:
            all_events = self.get_world_events()
            return all_events[-limit:] if len(all_events) > limit else all_events
        except Exception as e:
            print(f"[GameFacade] Error getting recent world events: {e}")
            return []
    
    # Plugin Operations
    def reload_plugin(self, plugin_id: str) -> bool:
        """Reload a plugin (hot-reload)."""
        return self.engine.get_plugin_service().reload_plugin(plugin_id)
    
    def get_loaded_plugins(self) -> List[str]:
        """Get list of loaded plugins."""
        return self.engine.get_plugin_service().get_loaded_plugins()
    
    def get_plugin_status(self, plugin_id: str) -> Optional[Dict]:
        """Get status of a specific plugin."""
        return self.engine.get_plugin_service().get_plugin_status(plugin_id)
    
    # World Events
    def get_world_events(self) -> List[Dict[str, Any]]:
        """Get all world events."""
        try:
            world = self.engine.get_world()
            return world.get_world_events()
        except Exception as e:
            print(f"[GameFacade] Error getting world events: {e}")
            return []
    
    # System Operations
    def get_system_status(self) -> Dict[str, Any]:
        """Get comprehensive system status."""
        return self.engine.get_engine_status()
    
    def cleanup_inactive_players(self, timeout_seconds: int = 300) -> int:
        """Remove inactive players."""
        return self.engine.get_player_service().cleanup_inactive_players(timeout_seconds)
    
    def is_running(self) -> bool:
        """Check if game is running."""
        return self.engine.is_running()
    
    # Private Messaging
    def send_private_message(self, sender_id: str, sender_name: str, recipient_id: str, message: str) -> bool:
        """Send a private message between players or to NPCs."""
        success, _ = self.engine.get_chat_service().send_private_message(sender_id, recipient_id, message)
        if success:
            self.engine.get_plugin_service().call_plugin_event('on_chat_message', sender_id, message, 'private')
        return success
      
    def get_private_messages(self, player_id: str, entity_id: str) -> List[Dict]:
        """Get private messages between player and entity."""
        history = self.engine.get_chat_service().get_chat_history()
        private_msgs = []
        
        for msg in history:
            msg_type = msg.get('type', '')
            # Check for private messages between player and entity (using backup version logic)
            if msg_type in ['private_to_npc', 'private_from_npc', 'private_to_player', 'private_from_player']:
                # Message is to/from this specific entity and player
                if ((msg.get('sender_id') == player_id and msg.get('target') == entity_id) or
                    (msg.get('sender_id') == entity_id and msg.get('target') == player_id)):
                    private_msgs.append({
                        'timestamp': msg.get('timestamp', ''),
                        'sender': msg.get('sender', 'Unknown'),
                        'sender_id': msg.get('sender_id', ''),
                        'message': msg.get('message', ''),
                        'type': msg_type,
                        'target': msg.get('target', '')
                    })
        
        print(f"[GameFacade] Found {len(private_msgs)} private messages between {player_id} and {entity_id}")
        return private_msgs
    
    # Utility methods for UI
    def get_world_html(self) -> str:
        """Get HTML representation of the game world (for UI)."""
        try:
            players = self.get_all_players()
            npcs = self.get_all_npcs()
            
            # This would be implemented based on the original HTML generation logic
            # For now, return a placeholder
            return f"<div>Game World - {len(players)} players, {len(npcs)} NPCs</div>"
        
        except Exception as e:
            return f"<div>Error loading world: {e}</div>"
    
    def get_player_from_session(self, session_hash: str) -> Optional[Player]:
        """Get player by session hash."""
        try:
            all_players = self.get_all_players()
            for player in all_players.values():
                if player.session_hash == session_hash:
                    return player
            return None
        
        except Exception as e:
            print(f"[GameFacade] Error getting player from session: {e}")
            return None
    
    def update_player_session(self, player_id: str, session_hash: str) -> bool:
        """Update player session hash."""
        try:
            player = self.engine.get_player_service().get_player(player_id)
            if player:
                player.session_hash = session_hash
                return self.engine.get_player_service().update_player(player)
            return False
        
        except Exception as e:
            print(f"[GameFacade] Error updating player session: {e}")
            return False