# kyrexis/messenger_integration.py
"""
Kyrexis Messenger AI Integration — Messenger Platform API + Sovereign Node

Real-time AI responses with quantum-enhanced processing.

The page_access_token is loaded from the KYREXIS_PAGE_ACCESS_TOKEN env var
(or passed explicitly). Never commit real tokens.
"""

from __future__ import annotations

import hashlib  # noqa: F401  (spec surface)
import json  # noqa: F401
import os
import time
from dataclasses import dataclass, field
from typing import Any, Dict, List, Optional

import requests


@dataclass
class MessengerMessage:
    """Messenger message structure."""

    recipient_id: str
    sender_id: str
    text: str
    timestamp: float
    attachments: Optional[List[Dict]] = None
    quick_replies: Optional[List[Dict]] = None


class KyrexisMessengerIntegration:
    """
    Kyrexis AI Messenger Integration — full Messenger Platform API.

    Quantum-enhanced message processing via the Kyrexis core. When no
    page access token is configured (or network is unavailable), the
    integration still works as a local echo/processor for testing.
    """

    def __init__(self, page_access_token: Optional[str] = None, verify_token: Optional[str] = None):
        self.page_access_token = (
            page_access_token
            or os.environ.get("KYREXIS_PAGE_ACCESS_TOKEN", "")
        )
        self.verify_token = verify_token
        self.base_url = "https://graph.facebook.com/v13.0"
        self.messages: List[Dict[str, Any]] = []
        self.conversations: Dict[str, List[Dict[str, Any]]] = {}
        self.active = False
        self.kyrexis_core = None

    def initialize(self, kyrexis_core) -> "KyrexisMessengerIntegration":
        """Initialize with the Kyrexis AI core."""
        self.kyrexis_core = kyrexis_core
        self.active = True
        print("🧠 Kyrexis Messenger Integration initialized")
        return self

    def send_message(
        self, recipient_id: str, message: str, quick_replies: Optional[List[Dict]] = None
    ) -> Dict[str, Any]:
        """Send a message via the Messenger Platform API."""
        if not self.active:
            raise RuntimeError("Messenger integration not active")

        data = {
            "recipient": {"id": recipient_id},
            "message": {"text": message},
        }
        if quick_replies:
            data["message"]["quick_replies"] = quick_replies

        # No token configured → local-mode (recorded, not transmitted)
        if not self.page_access_token:
            result = {"local": True, "message_id": f"local_{int(time.time())}"}
        else:
            response = requests.post(
                f"{self.base_url}/me/messages?access_token={self.page_access_token}",
                headers={"Content-Type": "application/json"},
                json=data,
                timeout=30,
            )
            if response.status_code != 200:
                raise Exception(f"Failed to send message: {response.text}")
            result = response.json()

        self.messages.append({
            "type": "outgoing",
            "recipient": recipient_id,
            "text": message,
            "timestamp": time.time(),
            "response": result,
        })
        return result

    def process_message(self, message: MessengerMessage) -> str:
        """Process an incoming message with the Kyrexis AI core."""
        if self.kyrexis_core is not None:
            response = self.kyrexis_core.generate_response(
                message.text, {"sender": message.sender_id}
            )
        else:
            response = f"🔮 Kyrexis AI: Message received at {time.time():.0f}"

        conversation_id = message.sender_id
        self.conversations.setdefault(conversation_id, []).append({
            "incoming": message.text,
            "response": response,
            "timestamp": time.time(),
        })
        return response

    def handle_webhook(self, payload: Dict[str, Any]) -> Dict[str, Any]:
        """Handle an incoming Messenger webhook payload."""
        if "entry" not in payload:
            return {"error": "Invalid webhook payload"}

        results = []
        for entry in payload["entry"]:
            sender_id = entry.get("sender", {}).get("id")
            if not sender_id:
                continue
            for messaging in entry.get("messaging", []):
                if "message" not in messaging:
                    continue
                message_data = messaging["message"]
                text = message_data.get("text", "")
                if not text:
                    continue
                msg = MessengerMessage(
                    recipient_id=messaging.get("recipient", {}).get("id"),
                    sender_id=sender_id,
                    text=text,
                    timestamp=messaging.get("timestamp", time.time()),
                )
                response = self.process_message(msg)
                send_result = self.send_message(sender_id, response)
                results.append({
                    "sender": sender_id,
                    "received": text,
                    "response": response,
                    "send_result": send_result,
                })
        return {"status": "success", "processed": len(results), "results": results}

    def get_conversation(self, user_id: str) -> List[Dict]:
        """Conversation history for a user."""
        return self.conversations.get(user_id, [])

    def get_status(self) -> Dict[str, Any]:
        """Integration status."""
        return {
            "active": self.active,
            "total_messages": len(self.messages),
            "total_conversations": len(self.conversations),
            "kyrexis_connected": self.kyrexis_core is not None,
            "token_configured": bool(self.page_access_token),
        }


# Singleton
messenger = KyrexisMessengerIntegration()