"""
api_implementations.py
    Contiene métodos utilizados por el alimentador a lo largo de "chats.py" para manipular los endpoints del sistema.
"""

from dotenv import load_dotenv
import os
import requests
from fastapi import APIRouter, HTTPException, status
from typing import Dict, Optional
from auth import get_internal_headers

##TODO EL QUILOMBO NUEVO##
API_BASE_URL = os.getenv('API_URL')  
TIMEOUT = 5.0

router = APIRouter()
load_dotenv()


def patch_api_sync(validated_data: Dict, endpoint: str) -> Optional[Dict]:
    """Función síncrona para hacer PUT a la API"""
    try:
        response = requests.patch(
            f"{API_BASE_URL}/{endpoint}/",
            json=validated_data,
            headers=get_internal_headers(),
            timeout=TIMEOUT
        )
        
        if response.status_code == status.HTTP_400_BAD_REQUEST:
            error_detail = response.json().get("detail", "")
            return error_detail
        
        response.raise_for_status()
        return response.json()
        
    except requests.exceptions.RequestException as e:
        raise HTTPException(
            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
            detail=f"Connection failed: {str(e)}"
        )

def post_api_sync(validated_data: Dict, endpoint: str) -> Optional[Dict]:
    """Función síncrona para hacer POST a la API"""
    try:
        response = requests.post(
            f"{API_BASE_URL}/{endpoint}/",
            json=validated_data,
            headers=get_internal_headers(),
            timeout=TIMEOUT
        )
        
        if response.status_code == status.HTTP_400_BAD_REQUEST:
            error_detail = response.json().get("detail", "")
            if "already exists" in error_detail:
                return None
        response.raise_for_status()
        return response.json()
        
    except requests.exceptions.RequestException as e:
        raise HTTPException(
            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
            detail=f"Connection failed: {str(e)}"
        )

def get_api_sync(endpoint: str):
    """Función síncrona para hacer GET a la API"""
    try:
        response = requests.get(
            f"{API_BASE_URL}/{endpoint}/",
            headers=get_internal_headers()
        )   
        response.raise_for_status()
        return response.json()
        
    except requests.exceptions.RequestException as e:
        raise HTTPException(
            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
            detail=f"Connection failed: {str(e)}"
        )

def create_telegram_group(group_data: Dict) -> Optional[Dict]:
    """Crea un grupo en la API remota (versión síncrona)"""
    try:
        validated_data = {
            "id_telegram": group_data["id_telegram"],
            "name": group_data["name"],
            "description": group_data["description"],
            "type": group_data["type"],
            "message_position": 0
        }
        return post_api_sync(validated_data, "groups")
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail=f"Invalid group data: {str(e)}"
        )

def refresh_telegram_group(channel: int, group_data: Dict) -> Optional[Dict]:
    """Crea un grupo en la API remota (versión síncrona)"""
    try:
        validated_data = {
            "name": str(group_data["name"]),
            "description": str(group_data["description"]),
            "type": str(group_data["type"])
        }
        print(f"La data que vamos  intentar cargar es {validated_data}")
        return patch_api_sync(validated_data, f"groups/{channel}")
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail=f"Invalid group data: {str(e)}"
        )

def act_message_posittion(group_id: int, message_id: int):
    try:
        validated_data = {
            "message_position": message_id
        }
        return patch_api_sync(validated_data, f"groups/{group_id}/update-position")
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail=f"Invalid group data: {str(e)}"
        )
       
def create_sender(sender: Dict) -> Optional[Dict]:
    """Crea un mensaje en la API remota (versión síncrona)"""
    try:
        sender_data = {
            "id_telegram": sender["id_telegram"],
            "type": sender["type"],
            "username": sender["username"],
            "first_name": str(sender["first_name"]),
            "last_name": str(sender["last_name"]),
            "phone": str(sender["phone"])
        }
        print(sender_data)

        return post_api_sync(sender_data, "senders")
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail=f"Invalid group data: {str(e)}"
        )
 
def create_message(message: Dict) -> Optional[Dict]:
    """Crea un mensaje en la API remota (versión síncrona)"""
    try:
        message_data = {
            "id_mess_g": message["id_mess_g"],
            "content": str(message["content"]),
            "date": message["date"],
            "sender_id": message["sender_id"],
            "group_id": message["group_id"]
        }
        response = post_api_sync(message_data, "messages")
    
        if response is None:
            return None

        if message['attachments'] is not None:
            try:
                create_attachment(message['attachments'])
            except Exception as e:
                print(f"Failed to create attachment for message {response['id_mess_g']}: {str(e)}")
        
        return response

    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail=f"Invalid group data: {str(e)}"
        )

def create_attachment(attachment: Dict) -> Optional[Dict]:
    """Crea un mensaje en la API remota (versión síncrona)"""
    try:
        attachment_data = {
            "message_id": attachment["message_id"],
            "type": attachment["type"],
            "description": str(attachment["description"]),
            "isDownloaded": "false",
            "group_id": attachment["group_id"]
        }
        print(f"Trying to load attachment data: {attachment_data}")
        return post_api_sync(attachment_data, "attachments")
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail=f"Invalid group data: {str(e)}"
        )