Add lyrics module (#149)

* Added support for searching lyrics from genius.com

*  Removed .DS_Store

* Minor changes

* Changed quotes, fixed tests, removed extra lines

* Removed DS_Store, extra line from __init__

* Added MusixMatch Search

config.py

@@ -16,4 +16,5 @@
 TIME_ZONE_DB_API_KEY = '<<TIME_ZONE_DB_API_KEY>>'
 WORDS_API_KEY = '<<WORDS_API_KEY>>'
 YOUTUBE_DATA_API_KEY = '<<YOUTUBE_DATA_API_KEY>>'
+MUSIX_API_KEY = '<<MUSIX_API_KEY>>'
 NEWS_API_KEY = '<<NEWS_API_KEY>>'

modules/src/__init__.py

@@ -11,6 +11,7 @@
     'hello',
     'help',
     'joke',
+    'lyrics',
     'movie',
     'music',
     'news',

modules/src/lyrics.py

@@ -0,0 +1,55 @@
+import requests
+import config
+import os
+from bs4 import BeautifulSoup
+from templates.generic import *
+from templates.text import TextTemplate
+
+MUSIX_KEY = os.environ.get('MUSIX_API_KEY', config.MUSIX_API_KEY)
+
+def process(input, entities):
+    output = {}
+    try:      
+        query = entities['lyrics'][0]['value']
+
+        payload = {
+            'apikey': MUSIX_KEY,
+            'q_track': query,
+        }
+
+        r = requests.get('http://api.musixmatch.com/ws/1.1/track.search',params=payload)
+        data = r.json()
+
+        lyrics_url = data['message']['body']['track_list'][0]['track']['track_share_url']
+        track_id = data['message']['body']['track_list'][0]['track']['track_id']
+
+        payload = {
+            'apikey': MUSIX_KEY,
+            'track_id': track_id,
+        }
+
+        r = requests.get('http://api.musixmatch.com/ws/1.1/track.lyrics.get',params=payload)
+        data = r.json()
+        lyrics = '\n'.join(data['message']['body']['lyrics']['lyrics_body'].split('\n')[:-1])
+
+        title = query
+        item_url = lyrics_url
+        subtitle = lyrics
+
+        template = GenericTemplate()
+        template.add_element(title=title, item_url=item_url, subtitle=subtitle, buttons=[])
+
+        output['input'] = input
+        output['output'] = template.get_message()
+        output['success'] = True
+
+    except:
+        error_message = 'There was some error while retrieving data from genius.com'
+        error_message += '\n Please ask me somrthing else, like:'
+        error_message += '\n Lyrics for the song Wish you were here'
+        output['error_msg'] = TextTemplate(error_message).get_message()
+        output['success'] = False      
+    return output
+
+
+

modules/tests/test_lyrics.py

@@ -0,0 +1,7 @@
+import modules
+
+def test_lyrics():
+    assert('lyrics' == modules.process_query("Lyrics for the song 'Wish you were here' ")[0])
+    assert('lyrics' == modules.process_query("lyrics for 'Go Robot' ")[0])
+    assert('lyrics' == modules.process_query("lyrics for the song Strawberry Fields Forever ")[0])
+    assert('lyrics' != modules.process_query("something random")[0])