import json
import urllib
import re
import datetime


class WeatherApi:

    def __init__(self):
        self.weather_api_url = "https://api.weatherapi.com/v1"
        self.api_key_filename = "./weather_api_key.txt"
        read_api_key()

    def read_api_key(self):
        with open(self.api_key_filename) as fp:
            self.api_key = fp.read()

    def get_current_conditions(self, units='metric'):
        # URL for current conditions
        current_url = f"{self.weather_api_url}/current.json?key={self.api_key}&q={location}&qai=no"

        # Make the request and get the results
        current_request = urllib.request.urlopen(current_url)
        current_data = current_request.read()
        current_json = json.loads(current_data.decode('utf-8'))

        # Different formats for different units
        current_output_format = {}
        current_output_format['metric'] = f"{location['name']}, {location['region']}, {location['country']} | {current['temp_c']}°C | {current['humidity']}% | {current['condition']['text']} | {current['wind_dir']} {current['wind_degree']}° {current['wind_kph']} kph" 
        current_output_format['imperial'] = f"{location['name']}, {location['region']}, {location['country']} | {current['temp_f']}°F | {current['humidity']}% | {current['condition']['text']} | {current['wind_dir']} {current['wind_degree']}° {current['wind_mph']} mph" 

        return current_output_format[units]

    def get_user_preferences(self, nick):
        # Read SQLite DB for default location and units for the nick provided

    def set_user_preferences(self, nick, location=None, units='metric'):
        # Set the default location and units for the nick in a SQLite DB

    def get_forecast(self, days=4, units='metric'):
        # URL for current conditions
        forecast_url = f"{self.weather_api_url}/forecast.json?key={self.api_key}&q={location}&days={days}&qai=no"

        # Make the request and get the results
        forecast_request = urllib.request.urlopen(forecast_url)
        forecast_data = forecast_request.read()
        forecast_json = json.loads(forecast_data.decode('utf-8'))
        location = forecast_json['location']
        forecast = forecast_json['forecast']['forecastday']

        # Find the highest and lowest temperature over each 24 hour period
        forecast_temps = []

        for day in forecast_json['forecast']['forecastday']:
            # Set the initial high and low values to absurd values
            daily_temp_range = {
                    'day': day['date'],
                    'high': 10000.0,
                    'low': -10000.0,
                    'conditions': ''
            }}

            for hour in day['hour']:
                temp = day['hour']['temp_c'] if units == 'metric' else day['hour']['temp_f']

                if temp > daily_temp_range['high']:
                    daily_temp_range['high'] = temp
                    # We only want the conditions for when the temp is the highest
                    daily_temp_range['conditions'] = hour['condition']['text']

                if temp < daily_temp_range['low']:
                    daily_temp_range['low'] = temp


        # Different formats for different units
        forecast_output_format = {}
        forecast_output_format['metric'] = f"{location['name']}, {location['region']}, {location['country']} | {current['temp_c']}°C | {current['humidity']}% | {current['condition']['text']} | {current['wind_dir']} {current['wind_degree']}° {current['wind_kph']} kph" 
        forecast_output_format['imperial'] = f"{location['name']}, {location['region']}, {location['country']} | {current['temp_f']}°F | {current['humidity']}% | {current['condition']['text']} | {current['wind_dir']} {current['wind_degree']}° {current['wind_mph']} mph" 

        return current_output_format[units]