import requests
import json
base_urls = {'deepinfra':"https://api.deepinfra.com/v1/openai/chat/completions", "openai":"https://api.openai.com/v1/chat/completions"}
def print_token(token):
    if token.token == None:
        print()
    else:
        print(token.token, end="", flush=True)
def get_direct_output(history, model, api_key, stream = False, base_url="openai"):
    if base_url in base_urls:
        url = base_urls[base_url]
    else:
        url = base_url
    headers = {
        "Content-Type": "application/json",
        "Authorization": f"Bearer {api_key}"
    }

    data = {
        "model": model,
        "stream":stream,
        "messages": history
    }

    response = requests.post(url, json=data, headers=headers, stream=stream)
    if stream:
        return response
    return response.json()
class conversation:
    class token:
        def __init__(self, line):
            if line['choices'][0]['finish_reason'] == "stop":
                self.token = None
                self.model = line["model"]
                self.message = {'role':'assistant','content':None}
                self.response = line
            else:
                self.token = line["choices"][0]['delta']['content']
                self.model = line["model"]
                self.message = line["choices"][0]['delta']
                self.response = line
    def streamingResponse(self, lines, invis):
        message = ""
        iters = lines.iter_lines(decode_unicode=True)
        for line in iters:
            if 'data: ' not in line:
                continue
            line_js = json.loads(line.split('data: ')[1])
            if line_js['choices'][0]['finish_reason'] == "stop":
                if not invis:
                    self.history.append({'role':'assistant', 'content':message})
                yield self.token(line_js)
                break
            token = self.token(line_js)
            message += token.token
            yield token
    class response:
        def __init__(self, json):
            self.response = json
            self.model = json['model']
            self.id = json['id']
            self.choices = json['choices']
            self.text = json['choices'][0]['message']['content']
            self.message = json['choices'][0]['message']
            self.usage = json['usage']
            self.prompt_tokens = json['usage']['prompt_tokens']
            self.output_tokens = json['usage']['completion_tokens']
            self.total_tokens = json['usage']['total_tokens']
    def __init__(self, api_key='', model='gpt-3.5-turbo', history=None, system_prompt="You are a helpful assistant", base_url="openai"):
        if base_url.lower() == "deepinfra" and model == "gpt-3.5-turbo":
            model = "meta-llama/Llama-2-70b-chat-hf"
        self.base_url = base_url.lower()
        self.api_key = api_key
        self.model = model
        self.history = [{'role':'system',"content":system_prompt}]
        if history is not None:
            self.history = history
    def generate(self, invisible=False, stream=False):
        if stream:
            res = self.streamingResponse(get_direct_output(self.history, self.model, self.api_key, stream=True, base_url=self.base_url), invisible)
        else:
            res = self.response(get_direct_output(self.history, self.model, self.api_key, base_url=self.base_url))
            if not invisible:
                self.history.append(res.message)
        return res
    def ask(self, message, invisible=False, stream=False):

        if invisible:
            out = self.history.copy()
            out.append({"role":"user", "content":message})
        else:
            self.history.append({"role":"user", "content":message})
            out = self.history
        if stream:
            res = self.streamingResponse(get_direct_output(out, self.model, self.api_key, stream=True, base_url=self.base_url), invisible)
        else:
            res = self.response(get_direct_output(out, self.model, self.api_key, base_url=self.base_url))
            if not invisible:
                self.history.append(res.message)
        return res