from dotenv import load_dotenv
import os

from huggingface_hub import InferenceClient
# Load environment variables from .env file if it exists
load_dotenv()

# Check if we're running locally with custom model settings
BASE_URL = os.getenv('BASE_URL')
LOCAL_TOKEN = os.getenv('TOKEN')
LOCAL_MODE = bool(BASE_URL and LOCAL_TOKEN)
MODEL_NAME = os.getenv('MODEL_NAME', 'openai/gpt-oss-20b')
client = None
# Choose client based on whether we're running locally or in the cloud
if LOCAL_MODE:
    # Running locally with custom model settings
    # Use local inference server
    client = InferenceClient(model=BASE_URL, token=LOCAL_TOKEN)
else:
    hf_token = os.environ["HF_TOKEN"]
    client = InferenceClient(token=hf_token, model=MODEL_NAME)


def clean_response(response):
    """Clean up the response by removing unwanted metadata and formatting artifacts"""
    import re
    import json
    
    # Remove channel/commentary tags and similar artifacts
    response = re.sub(r'<\|channel\|>commentary to=assistant', '', response, flags=re.IGNORECASE)
    response = re.sub(r'<\|constrain\|>json<\|message\|>', '', response, flags=re.IGNORECASE)
    response = re.sub(r'<\|.*?\|>', '', response)  # Remove any other <|...|> patterns
    response = response.replace("\\n", "\n")
    
    # Try to parse JSON response and extract the actual message
    try:
        # Look for JSON-like content
        json_match = re.search(r'\{[^}]*"response"\s*:\s*"([^"]*)"[^}]*\}', response)
        if json_match:
            actual_response = json_match.group(1)
            print(f"🔍 DEBUG - Extracted from JSON: {actual_response}")
            return actual_response
        
        # Try to parse as complete JSON
        parsed = json.loads(response.strip())
        if isinstance(parsed, dict) and "response" in parsed:
            actual_response = parsed["response"]
            print(f"🔍 DEBUG - Parsed JSON response: {actual_response}")
            return actual_response
    except (json.JSONDecodeError, AttributeError):
        # If JSON parsing fails, continue with text cleaning
        pass
    
    # Clean up extra whitespace and newlines
    response = re.sub(r'\n\s*\n', '\n', response)  # Remove multiple empty lines
    response = response.strip()  # Remove leading/trailing whitespace
    
    return response