from __future__ import annotations

import json
import requests
from ...typing import CreateResult, Messages
from ..base_provider import ProviderModelMixin, AbstractProvider
from ...image import ImageResponse

class NexraSDLora(AbstractProvider, ProviderModelMixin):
    label = "Nexra Stable Diffusion Lora"
    url = "https://nexra.aryahcr.cc/documentation/stable-diffusion/en"
    api_endpoint = "https://nexra.aryahcr.cc/api/image/complements"
    working = True
    
    default_model = "sdxl-lora"
    models = [default_model]

    @classmethod
    def get_model(cls, model: str) -> str:
        return cls.default_model
            
    @classmethod
    def create_completion(
        cls,
        model: str,
        messages: Messages,
        proxy: str = None,
        response: str = "url", # base64 or url
        guidance: str = 0.3, # Min: 0, Max: 5
        steps: str = 2, # Min: 2, Max: 10
        **kwargs
    ) -> CreateResult:
        model = cls.get_model(model)

        headers = {
            'Content-Type': 'application/json'
        }
        
        data = {
            "prompt": messages[-1]["content"],
            "model": model,
            "response": response,
            "data": {
                "guidance": guidance,
                "steps": steps
            }
        }
        
        response = requests.post(cls.api_endpoint, headers=headers, json=data)

        result = cls.process_response(response)
        yield result

    @classmethod
    def process_response(cls, response):
        if response.status_code == 200:
            try:
                content = response.text.strip()
                content = content.lstrip('_')
                data = json.loads(content)
                if data.get('status') and data.get('images'):
                    image_url = data['images'][0]
                    return ImageResponse(images=[image_url], alt="Generated Image")
                else:
                    return "Error: No image URL found in the response"
            except json.JSONDecodeError as e:
                return f"Error: Unable to decode JSON response. Details: {str(e)}"
        else:
            return f"Error: {response.status_code}, Response: {response.text}"