import requests
from pyowm import OWM
from pyowm import exceptions

days_from_ind = {0: 'Today', 1: 'Tomorrow', 2: 'Day after tomorrow'}
emojis = {'clear sky': ':sunny:', 'scattered clouds': ':partly_sunny:',
    'light rain': ':white_sun_rain_cloud:', 'overcast clouds': ':cloud:',
    'broken clouds': ':white_sun_cloud:', 'moderate rain': ':cloud_with_rain:',
    'light snow': ':cloud_snow:', 'few clouds': ':white_sun_small_cloud:'}
openweathermap = OWM('593e0e182f9278a10443da354c4014db')

def parse_loc(message):
    if len(message.split()) > 1:
        try:
            res = get_weather(' '.join(message.split()[1:]))
        except exceptions.api_call_error.APICallError:
            res = '```Please input a valid location: !weather [location]```'
        return res
    return '```Please input a valid location: !weather [location]```'


def get_weather(message):
    """
    get_weather(location)

    Returns the weather forecast for the selected location. Uses PythonOWM.

    TODO: Create a list of weather preferences - rain > sun, snow > rain, etc.
    """
    try:
        forecaster = openweathermap.three_hours_forecast(message)
        forecast = forecaster.get_forecast()

        reg = forecast.get(0)
        location = forecast.get_location().get_name()
        indicator = int(reg.get_reference_time(timeformat='iso')[11:13]) // 3

        curr_stat = ' \n***Status in {}:*** *{}* {}\n'.format(
            location,
            reg.get_detailed_status().title(),
            emojis[reg.get_detailed_status()])
        curr_temp = '**Currently:** *{}F*\n\n__**3 day forecast:**__\n'.format(
            str(reg.get_temperature('fahrenheit').get('temp')))
        forecast_str = '{}{}'.format(curr_stat, curr_temp)

        ind = 0
        for i in range((4 - indicator) % 8, int((3 * len(forecast)) / 5), 8):
            high, low = 0, 100000
            for j in range(0, 8):
                if (i + j < (3 * len(forecast)) / 5):
                    day = forecast.get(i + j)
                else:
                    break

                temps = day.get_temperature('fahrenheit')
                h = temps.get('temp_max')
                l = temps.get('temp_min')
                # print(forecast.get(i + j).get_detailed_status())
                if high < h:
                    high = h
                if low > l:
                    low = l

            day = '***{}***\n'.format(
                days_from_ind.get(ind))
            weather_stat = '**Status:** *{}* {}\n'.format(
                forecast.get(i).get_detailed_status().title(),
                emojis[forecast.get(i).get_detailed_status()])
            high_temp = '**High:** *{}F*\n'.format(
                str(high))
            low_temp = '**Low:** *{}F*\n\n'.format(
                str(low))
            forecast_str = '{}{}{}{}{}'.format(
                forecast_str, day, weather_stat, high_temp, low_temp)
            ind += 1

        return forecast_str
    except Exception:
        return 'Please input a valid location'