# Source code for powerline.segments.common.wthr

    # vim:fileencoding=utf-8:noet
    from __future__ import (unicode_literals, division, absolute_import, print_function)

    import json

    from powerline.lib.url import urllib_read, urllib_urlencode
    from powerline.lib.threaded import KwThreadedSegment
    from powerline.segments import with_docstring

    # XXX Warning: module name must not be equal to the segment name as long as this
    # segment is imported into powerline.segments.common module.

    # Weather condition code descriptions available at
    # http://developer.yahoo.com/weather/#codes
    weather_conditions_codes = (
    	('tornado',                 'stormy'),  # 0
    	('tropical_storm',          'stormy'),  # 1
    	('hurricane',               'stormy'),  # 2
    	('severe_thunderstorms',    'stormy'),  # 3
    	('thunderstorms',           'stormy'),  # 4
    	('mixed_rain_and_snow',     'rainy' ),  # 5
    	('mixed_rain_and_sleet',    'rainy' ),  # 6
    	('mixed_snow_and_sleet',    'snowy' ),  # 7
    	('freezing_drizzle',        'rainy' ),  # 8
    	('drizzle',                 'rainy' ),  # 9
    	('freezing_rain',           'rainy' ),  # 10
    	('showers',                 'rainy' ),  # 11
    	('showers',                 'rainy' ),  # 12
    	('snow_flurries',           'snowy' ),  # 13
    	('light_snow_showers',      'snowy' ),  # 14
    	('blowing_snow',            'snowy' ),  # 15
    	('snow',                    'snowy' ),  # 16
    	('hail',                    'snowy' ),  # 17
    	('sleet',                   'snowy' ),  # 18
    	('dust',                    'foggy' ),  # 19
    	('fog',                     'foggy' ),  # 20
    	('haze',                    'foggy' ),  # 21
    	('smoky',                   'foggy' ),  # 22
    	('blustery',                'windy' ),  # 23
    	('windy',                           ),  # 24
    	('cold',                    'day'   ),  # 25
    	('clouds',                  'cloudy'),  # 26
    	('mostly_cloudy_night',     'cloudy'),  # 27
    	('mostly_cloudy_day',       'cloudy'),  # 28
    	('partly_cloudy_night',     'cloudy'),  # 29
    	('partly_cloudy_day',       'cloudy'),  # 30
    	('clear_night',             'night' ),  # 31
    	('sun',                     'sunny' ),  # 32
    	('fair_night',              'night' ),  # 33
    	('fair_day',                'day'   ),  # 34
    	('mixed_rain_and_hail',     'rainy' ),  # 35
    	('hot',                     'sunny' ),  # 36
    	('isolated_thunderstorms',  'stormy'),  # 37
    	('scattered_thunderstorms', 'stormy'),  # 38
    	('scattered_thunderstorms', 'stormy'),  # 39
    	('scattered_showers',       'rainy' ),  # 40
    	('heavy_snow',              'snowy' ),  # 41
    	('scattered_snow_showers',  'snowy' ),  # 42
    	('heavy_snow',              'snowy' ),  # 43
    	('partly_cloudy',           'cloudy'),  # 44
    	('thundershowers',          'rainy' ),  # 45
    	('snow_showers',            'snowy' ),  # 46
    	('isolated_thundershowers', 'rainy' ),  # 47
    )
    # ('day',    (25, 34)),
    # ('rainy',  (5, 6, 8, 9, 10, 11, 12, 35, 40, 45, 47)),
    # ('cloudy', (26, 27, 28, 29, 30, 44)),
    # ('snowy',  (7, 13, 14, 15, 16, 17, 18, 41, 42, 43, 46)),
    # ('stormy', (0, 1, 2, 3, 4, 37, 38, 39)),
    # ('foggy',  (19, 20, 21, 22, 23)),
    # ('sunny',  (32, 36)),
    # ('night',  (31, 33))):
    weather_conditions_icons = {
    	'day':           'DAY',
    	'blustery':      'WIND',
    	'rainy':         'RAIN',
    	'cloudy':        'CLOUDS',
    	'snowy':         'SNOW',
    	'stormy':        'STORM',
    	'foggy':         'FOG',
    	'sunny':         'SUN',
    	'night':         'NIGHT',
    	'windy':         'WINDY',
    	'not_available': 'NA',
    	'unknown':       'UKN',
    }

    temp_conversions = {
    	'C': lambda temp: temp,
    	'F': lambda temp: (temp * 9 / 5) + 32,
    	'K': lambda temp: temp + 273.15,
    }

    # Note: there are also unicode characters for units: ℃, ℉ and  K
    temp_units = {
    	'C': '°C',
    	'F': '°F',
    	'K': 'K',
    }

    class WeatherSegment(KwThreadedSegment):
    	interval = 600
    	default_location = None
    	location_urls = {}

    	@staticmethod
    	def key(location_query=None, **kwargs):
    		return location_query

    	def get_request_url(self, location_query):
    		try:
    			return self.location_urls[location_query]
    		except KeyError:
    			if location_query is None:
    				location_data = json.loads(urllib_read('http://geoip.nekudo.com/api/'))
    				location = ','.join((
    					location_data['city'],
    					location_data['country']['name'],
    					location_data['country']['code']
    				))
    				self.info('Location returned by nekudo is {0}', location)
    			else:
    				location = location_query
    			query_data = {
    				'q':
    				'use "https://raw.githubusercontent.com/yql/yql-tables/master/weather/weather.bylocation.xml" as we;'
    				'select * from weather.forecast where woeid in'
    				' (select woeid from geo.places(1) where text="{0}") and u="c"'.format(location).encode('utf-8'),
    				'format': 'json',
    			}
    			self.location_urls[location_query] = url = (
    				'http://query.yahooapis.com/v1/public/yql?' + urllib_urlencode(query_data))
    			return url

    	def compute_state(self, location_query):
    		url = self.get_request_url(location_query)
    		raw_response = urllib_read(url)
    		if not raw_response:
    			self.error('Failed to get response')
    			return None

    		response = json.loads(raw_response)
    		try:
    			condition = response['query']['results']['channel']['item']['condition']
    			condition_code = int(condition['code'])
    			temp = float(condition['temp'])
    		except (KeyError, ValueError):
    			self.exception('Yahoo returned malformed or unexpected response: {0}', repr(raw_response))
    			return None

    		try:
    			icon_names = weather_conditions_codes[condition_code]
    		except IndexError:
    			if condition_code == 3200:
    				icon_names = ('not_available',)
    				self.warn('Weather is not available for location {0}', self.location)
    			else:
    				icon_names = ('unknown',)
    				self.error('Unknown condition code: {0}', condition_code)

    		return (temp, icon_names)

    	def render_one(self, weather, icons=None, unit='C', temp_format=None, temp_coldest=-30, temp_hottest=40, **kwargs):
    		if not weather:
    			return None

    		temp, icon_names = weather

    		for icon_name in icon_names:
    			if icons:
    				if icon_name in icons:
    					icon = icons[icon_name]
    					break
    		else:
    			icon = weather_conditions_icons[icon_names[-1]]

    		temp_format = temp_format or ('{temp:.0f}' + temp_units[unit])
    		converted_temp = temp_conversions[unit](temp)
    		if temp <= temp_coldest:
    			gradient_level = 0
    		elif temp >= temp_hottest:
    			gradient_level = 100
    		else:
    			gradient_level = (temp - temp_coldest) * 100.0 / (temp_hottest - temp_coldest)
    		groups = ['weather_condition_' + icon_name for icon_name in icon_names] + ['weather_conditions', 'weather']
    		return [
    			{
    				'contents': icon + ' ',
    				'highlight_groups': groups,
    				'divider_highlight_group': 'background:divider',
    			},
    			{
    				'contents': temp_format.format(temp=converted_temp),
    				'highlight_groups': ['weather_temp_gradient', 'weather_temp', 'weather'],
    				'divider_highlight_group': 'background:divider',
    				'gradient_level': gradient_level,
    			},
    		]

    weather = with_docstring(WeatherSegment(),
    '''Return weather from Yahoo! Weather.

    Uses GeoIP lookup from http://geoip.nekudo.com to automatically determine
    your current location. This should be changed if you’re in a VPN or if your
    IP address is registered at another location.

    Returns a list of colorized icon and temperature segments depending on
    weather conditions.

    :param str unit:
    	temperature unit, can be one of ``F``, ``C`` or ``K``
    :param str location_query:
    	location query for your current location, e.g. ``oslo, norway``
    :param dict icons:
    	dict for overriding default icons, e.g. ``{'heavy_snow' : u'❆'}``
    :param str temp_format:
    	format string, receives ``temp`` as an argument. Should also hold unit.
    :param float temp_coldest:
    	coldest temperature. Any temperature below it will have gradient level equal
    	to zero.
    :param float temp_hottest:
    	hottest temperature. Any temperature above it will have gradient level equal
    	to 100. Temperatures between ``temp_coldest`` and ``temp_hottest`` receive
    	gradient level that indicates relative position in this interval
    	(``100 * (cur-coldest) / (hottest-coldest)``).

    Divider highlight group used: ``background:divider``.

    Highlight groups used: ``weather_conditions`` or ``weather``, ``weather_temp_gradient`` (gradient) or ``weather``.
    Also uses ``weather_conditions_{condition}`` for all weather conditions supported by Yahoo.
    ''')