import requests
import openai
from config import (
    OPENAI_API_KEY,
    OPENAI_MODEL,
    USE_OLLAMA,
    OLLAMA_MODEL,
    USE_OPENROUTER,
    OPENROUTER_API_KEY,
    OPENROUTER_MODEL,
    TEMPERATURE,
)

openai.api_key = OPENAI_API_KEY


def query_openai(messages):
    try:
        response = openai.ChatCompletion.create(
            model=OPENAI_MODEL, messages=messages, temperature=TEMPERATURE
        )
        return response["choices"][0]["message"]["content"]
    except Exception as e:
        return f"⚠️ OpenAI Error: {e}"


def query_openrouter(messages):
    headers = {
        "Authorization": f"Bearer {OPENROUTER_API_KEY}",
        "Content-Type": "application/json",
    }
    payload = {
        "model": OPENROUTER_MODEL,
        "messages": messages,
        "temperature": TEMPERATURE,
    }
    try:
        response = requests.post(
            "https://openrouter.ai/api/v1/chat/completions",
            headers=headers,
            json=payload,
        )
        return response.json()["choices"][0]["message"]["content"]
    except Exception as e:
        return f"⚠️ OpenRouter Error: {e}"


def query_ollama(prompt):
    try:
        response = requests.post(
            "http://localhost:11434/api/generate",
            json={"model": OLLAMA_MODEL, "prompt": prompt},
        )
        return response.json()["response"]
    except Exception as e:
        return f"⚠️ Ollama Error: {e}"


def generate_response(persona_prompt, user_input, history):
    # Handle Ollama case
    if USE_OLLAMA:
        # Convert history to Ollama format
        full_prompt = f"{persona_prompt}\n\n"
        for msg in history:
            full_prompt += f"{msg['role'].capitalize()}: {msg['content']}\n"
        full_prompt += f"User: {user_input}\nBot:"

        reply = query_ollama(full_prompt)
        return history + [
            {"role": "user", "content": user_input},
            {"role": "assistant", "content": reply},
        ]

    # Handle OpenAI/OpenRouter case
    messages = [{"role": "system", "content": persona_prompt}]
    messages.extend(history)
    messages.append({"role": "user", "content": user_input})

    if USE_OPENROUTER:
        reply = query_openrouter(messages)
    else:
        reply = query_openai(messages)

    # Return the complete history with the new messages
    return history + [
        {"role": "user", "content": user_input},
        {"role": "assistant", "content": reply},
    ]