"""
 Spotify (Music)

 @website     https://spotify.com
 @provide-api yes (https://developer.spotify.com/web-api/search-item/)

 @using-api   yes
 @results     JSON
 @stable      yes
 @parse       url, title, content, embedded
"""

from json import loads
from searx.url_utils import urlencode

# engine dependent config
categories = ['music']
paging = True

# search-url
url = 'https://api.spotify.com/'
search_url = url + 'v1/search?{query}&type=track&offset={offset}'

embedded_url = '<iframe data-src="https://embed.spotify.com/?uri=spotify:track:{audioid}"\
     width="300" height="80" frameborder="0" allowtransparency="true"></iframe>'


# do search-request
def request(query, params):
    offset = (params['pageno'] - 1) * 20

    params['url'] = search_url.format(query=urlencode({'q': query}), offset=offset)

    return params


# get response from search-request
def response(resp):
    results = []

    search_res = loads(resp.text)

    # parse results
    for result in search_res.get('tracks', {}).get('items', {}):
        if result['type'] == 'track':
            title = result['name']
            url = result['external_urls']['spotify']
            content = u'{} - {} - {}'.format(
                result['artists'][0]['name'],
                result['album']['name'],
                result['name'])

            embedded = embedded_url.format(audioid=result['id'])

            # append result
            results.append({'url': url,
                            'title': title,
                            'embedded': embedded,
                            'content': content})

    # return results
    return results

@@ -285,16 +285,46 @@
 rlencode
+%0Aimport requests%0Aimport base64
 %0A%0A# engi
@@ -379,16 +379,62 @@
 g = True
+%0Aapi_client_id = None%0Aapi_client_secret = None
 %0A%0A# sear
@@ -804,16 +804,16 @@
 ) * 20%0A%0A
-
     para
@@ -885,24 +885,408 @@
 et=offset)%0A%0A
+    r = requests.post(%0A        'https://accounts.spotify.com/api/token',%0A        data=%7B'grant_type': 'client_credentials'%7D,%0A        headers=%7B'Authorization': 'Basic ' + str(base64.b64encode(%0A            (api_client_id + %22:%22 + api_client_secret).encode('utf-8')%0A        ), 'utf-8')%7D%0A    )%0A    j = loads(r.text)%0A    params%5B'headers'%5D = %7B'Authorization': 'Bearer ' + j%5B'access_token'%5D%7D%0A%0A
     return p

Fix spotify engine