#!/usr/bin python3
# -*- coding: utf-8 -*-
"""
This part of the code exposes functions to fetch data from the open-meteo.com API.
The bellow code is the generated by the https://open-meteo.com/en/docs itself.
It has been slighly modified to return a dictionary with all the information nedeed.
"""

import openmeteo_requests

import requests_cache
#import pandas as pd
from retry_requests import retry


class WeatherHelper:

    def __init__(self, latitude: float, longitude: float, timezone: str):
        self.latitude = latitude
        self.longitude = longitude
        self.timezone = timezone
        
    def fetch_open_meteo_data(self) -> dict:

        # Setup the Open-Meteo API client with cache and retry on error
        cache_session = requests_cache.CachedSession('.cache', expire_after = 3600)
        retry_session = retry(cache_session, retries = 5, backoff_factor = 0.2)
        openmeteo = openmeteo_requests.Client(session = retry_session)

        # Make sure all required weather variables are listed here
        # The order of variables in hourly or daily is important to assign them correctly below
        url = "https://api.open-meteo.com/v1/forecast"
        params = {
            "latitude": self.latitude,
            "longitude": self.longitude,
            "current": ["temperature_2m", "is_day", "weather_code"],
            "daily": ["weather_code", "temperature_2m_max", "temperature_2m_min"],
            "timezone": self.timezone,
            "forecast_days": 3
        }
        responses = openmeteo.weather_api(url, params=params)

        # Process first location. Add a for-loop for multiple locations or weather models
        response = responses[0]
        #print(f"Coordinates {response.Latitude()}°N {response.Longitude()}°E")
        #print(f"Elevation {response.Elevation()} m asl")
        #print(f"Timezone {response.Timezone()} {response.TimezoneAbbreviation()}")
        #print(f"Timezone difference to GMT+0 {response.UtcOffsetSeconds()} s")


        # Current values. The order of variables needs to be the same as requested.
        current = response.Current()

        current_temperature_2m = current.Variables(0).Value()

        current_is_day = current.Variables(1).Value()

        current_weather_code = current.Variables(2).Value()

        #print(f"Current time {current.Time()}")

        #print(f"Current temperature_2m {current_temperature_2m}")
        #print(f"Current is_day {current_is_day}")
        #print(f"Current weather_code {current_weather_code}")
        # Process daily data. The order of variables needs to be the same as requested.
        daily = response.Daily()
        daily_weather_code = daily.Variables(0).ValuesAsNumpy()
        daily_temperature_2m_max = daily.Variables(1).ValuesAsNumpy()
        daily_temperature_2m_min = daily.Variables(2).ValuesAsNumpy()

        #daily_data = {"date": pd.date_range(
        #	start = pd.to_datetime(daily.Time(), unit = "s", utc = True),
        #	end = pd.to_datetime(daily.TimeEnd(), unit = "s", utc = True),
        #	freq = pd.Timedelta(seconds = daily.Interval()),
        #	inclusive = "left"
        #)}

        #daily_data["weather_code"] = daily_weather_code
        #daily_data["temperature_2m_max"] = daily_temperature_2m_max
        #daily_data["temperature_2m_min"] = daily_temperature_2m_min

        #daily_dataframe = pd.DataFrame(data = daily_data)
        #print(daily_dataframe)

        # Here we are creating the dictionary that will be returned
        weather_data = {}

        weather_data['current_temperature_2m'] = int(current_temperature_2m)
        weather_data['current_is_day'] =         int(current_is_day)
        weather_data['current_weather_code'] =   int(current_weather_code)

        weather_data['tomorrow_temperature_2m_max'] = int(daily_temperature_2m_max[1])
        weather_data['tomorrow_temperature_2m_min'] = int(daily_temperature_2m_min[1])
        weather_data['tomorrow_weather_code'] =       int(daily_weather_code[1])

        weather_data['day_after_temperature_2m_max'] = int(daily_temperature_2m_max[2])
        weather_data['day_after_temperature_2m_min'] = int(daily_temperature_2m_min[2])
        weather_data['day_after_weather_code'] =       int(daily_weather_code[2])

        return weather_data
    

    def iconize_weather(self, weather_code: int) -> str:

        # This are the WMO Weather interpretation codes (WW)
        # More info in: https://open-meteo.com/en/docs at the end of the page.
        # Here we only put the name of the icons, the path will be handle in main()

        if weather_code >= 100:
            weather_icon = "placeholder32.bmp"
            return weather_icon
        
        if weather_code in [0]:
            weather_icon = "sunny-icon32.bmp"
        elif weather_code in [1, 2, 3]:
            weather_icon = "None"
        elif weather_code in [45, 48]:
            weather_icon = "None"
        elif weather_code in [51, 53, 55]:
            weather_icon = "None"
        elif weather_code in [56, 57]:
            weather_icon = "None"
        elif weather_code in [61, 63, 65]:
            weather_icon = "None"
        elif weather_code in [66, 67]:
            weather_icon = "None"
        elif weather_code in [71, 73, 75]:
            weather_icon = "None"
        elif weather_code in [77]:
            weather_icon = "None"
        elif weather_code in [80, 81, 82]:
            weather_icon = "None"
        elif weather_code in [85, 86]:
            weather_icon = "None"
        elif weather_code in [95]:
            weather_icon = "None"
        elif weather_code in [96, 99]:
            weather_icon = "None"
        else:
            weather_icon = "None"
        
        # If there is no an icon for that code, search the next highest icon
        if weather_icon == "None":
            weather_icon = self.iconize_weather(weather_code + 1)
        
        return weather_icon