import os
import requests
from typing import Literal, List, Optional
from datetime import datetime


from blueprints.function_calling_blueprint import Pipeline as FunctionCallingBlueprint


class Pipeline(FunctionCallingBlueprint):
    class Valves(FunctionCallingBlueprint.Valves):
        # Add your custom parameters here
        OPENWEATHERMAP_API_KEY: str = ""
        pass

    class Tools:
        def __init__(self, pipeline) -> None:
            self.pipeline = pipeline

        def get_current_time(
            self,
        ) -> str:
            """
            Get the current time.

            :return: The current time.
            """

            now = datetime.now()
            current_time = now.strftime("%H:%M:%S")
            return f"Current Time = {current_time}"

        def get_current_weather(
            self,
            location: str,
            unit: Literal["metric", "fahrenheit"] = "fahrenheit",
        ) -> str:
            """
            Get the current weather for a location. If the location is not found, return an empty string.

            :param location: The location to get the weather for.
            :param unit: The unit to get the weather in. Default is fahrenheit.
            :return: The current weather for the location.
            """

            # https://openweathermap.org/api

            if self.pipeline.valves.OPENWEATHERMAP_API_KEY == "":
                return "OpenWeatherMap API Key not set, ask the user to set it up."
            else:
                units = "imperial" if unit == "fahrenheit" else "metric"
                params = {
                    "q": location,
                    "appid": self.pipeline.valves.OPENWEATHERMAP_API_KEY,
                    "units": units,
                }

                response = requests.get(
                    "http://api.openweathermap.org/data/2.5/weather", params=params
                )
                response.raise_for_status()  # Raises an HTTPError for bad responses
                data = response.json()

                weather_description = data["weather"][0]["description"]
                temperature = data["main"]["temp"]

                return f"{location}: {weather_description.capitalize()}, {temperature}°{unit.capitalize()[0]}"

        def calculator(self, equation: str) -> str:
            """
            Calculate the result of an equation.

            :param equation: The equation to calculate.
            """

            # Avoid using eval in production code
            # https://nedbatchelder.com/blog/201206/eval_really_is_dangerous.html
            try:
                result = eval(equation)
                return f"{equation} = {result}"
            except Exception as e:
                print(e)
                return "Invalid equation"

    def __init__(self):
        super().__init__()
        # Optionally, you can set the id and name of the pipeline.
        # Best practice is to not specify the id so that it can be automatically inferred from the filename, so that users can install multiple versions of the same pipeline.
        # The identifier must be unique across all pipelines.
        # The identifier must be an alphanumeric string that can include underscores or hyphens. It cannot contain spaces, special characters, slashes, or backslashes.
        # self.id = "my_tools_pipeline"
        self.name = "My Tools Pipeline"
        self.valves = self.Valves(
            **{
                **self.valves.model_dump(),
                "pipelines": ["*"],  # Connect to all pipelines
                "OPENWEATHERMAP_API_KEY": os.getenv("OPENWEATHERMAP_API_KEY", ""),
            },
        )
        self.tools = self.Tools(self)