Code refactoring

- Code refactoring mainly for API
- Delete a useless option in `setting.py`
- Change some constants in Link Play mode

latest version/api/songs.py

@@ -1,57 +1,48 @@
-from core.sql import Connect
-from core.sql import Sql
+from core.error import ArcError, NoData
+from core.song import Song
+from core.sql import Connect, Query, Sql
+from flask import Blueprint, request
+
+from .api_auth import request_json_handle, role_required
+from .api_code import error_return, success_return
+from .constant import Constant
+
+bp = Blueprint('songs', __name__, url_prefix='/songs')
 
 
-def get_song_info(song_id):
-    # 查询指定歌曲信息，返回字典
-    r = {}
-
-    with Connect('') as c:
-        c.execute('''select * from chart where song_id=:a''', {'a': song_id})
-        x = c.fetchone()
-        if x:
-            r = {'song_id': x[0],
-                 'name': {'name_en': x[1],
-                          'name_jp': x[2]},
-                 'pakset': x[5],
-                 'artist': x[6],
-                 'date': x[9],
-                 'rating_pst': x[13]/10,
-                 'rating_prs': x[14]/10,
-                 'rating_ftr': x[15]/10,
-                 'rating_byn': x[16]/10,
-                 'difficultly_pst': x[17]/2,
-                 'difficultly_prs': x[18]/2,
-                 'difficultly_ftr': x[19]/2,
-                 'difficultly_byn': x[20]/2
-                 }
-
-    return r
+@bp.route('/<string:song_id>', methods=['GET'])
+@role_required(request, ['select', 'select_song_info'])
+def songs_song_get(user, song_id):
+    '''查询歌曲信息'''
+    with Connect() as c:
+        try:
+            s = Song(c, song_id).select()
+            return success_return(s.to_dict())
+        except ArcError as e:
+            return error_return(e)
+    return error_return()
 
 
-def get_songs(query=None):
-    # 查询全部歌曲信息，返回字典列表
-    r = []
-
-    with Connect('') as c:
-        x = Sql.select(c, 'chart', [], query)
-
-        if x:
+@bp.route('', methods=['GET'])
+@role_required(request, ['select', 'select_song_info'])
+@request_json_handle(request, optional_keys=Constant.QUERY_KEYS)
+def songs_get(data, user):
+    '''查询全歌曲信息'''
+    A = ['song_id', 'name']
+    B = ['song_id', 'name', 'rating_pst',
+         'rating_prs', 'rating_ftr', 'rating_byn']
+    with Connect() as c:
+        try:
+            query = Query(A, A, B).from_data(data)
+            x = Sql(c).select('chart', query=query)
+            r = []
             for i in x:
-                r.append({'sid': i[0],
-                          'name': {'name_en': i[1],
-                                   'name_jp': i[2]},
-                          'pakset': i[5],
-                          'artist': i[6],
-                          'date': i[9],
-                          'rating_pst': i[13]/10,
-                          'rating_prs': i[14]/10,
-                          'rating_ftr': i[15]/10,
-                          'rating_byn': i[16]/10,
-                          'difficultly_pst': i[17]/2,
-                          'difficultly_prs': i[18]/2,
-                          'difficultly_ftr': i[19]/2,
-                          'difficultly_byn': i[20]/2
-                          })
+                r.append(Song(c).from_list(i))
 
-    return r
+            if not r:
+                raise NoData(api_error_code=-2)
+
+            return success_return([x.to_dict() for x in r])
+        except ArcError as e:
+            return error_return(e)
+    return error_return()