Code refactoring

- Code refactoring
- Fix a bug that the other player will not become the host of the room at once, when the player disconnect in link play.

> Maybe add many unknown bugs. XD
> The song database `arcsong.db` will not used in the future. You can use a tool in `tool` folder to import old data.

latest version/server/user.py

@@ -1,13 +1,15 @@
-from flask import Blueprint, request
-from core.error import ArcError, NoAccess
-from core.sql import Connect
-from core.user import UserRegister, UserLogin, User, UserOnline
 from core.character import UserCharacter
+from core.error import ArcError, NoAccess
 from core.item import ItemCore
-from .func import error_return, success_return
-from .auth import auth_required
+from core.save import SaveData
+from core.sql import Connect
+from core.user import User, UserLogin, UserOnline, UserRegister
+from flask import Blueprint, request
 from setting import Config
 
+from .auth import auth_required
+from .func import error_return, success_return
+
 bp = Blueprint('user', __name__, url_prefix='/user')
 
 
@@ -41,6 +43,17 @@ def register():
     return error_return()
 
 
+@bp.route('/me', methods=['GET'])  # 用户信息
+@auth_required(request)
+def user_me(user_id):
+    with Connect() as c:
+        try:
+            return success_return(UserOnline(c, user_id).to_dict())
+        except ArcError as e:
+            return error_return(e)
+    return error_return()
+
+
 @bp.route('/me/character', methods=['POST'])  # 角色切换
 @auth_required(request)
 def character_change(user_id):
@@ -73,7 +86,8 @@ def toggle_uncap(user_id, character_id):
     return error_return()
 
 
-@bp.route('/me/character/<int:character_id>/uncap', methods=['POST'])  # 角色觉醒
+# 角色觉醒
+@bp.route('/me/character/<int:character_id>/uncap', methods=['POST'])
 @auth_required(request)
 def character_first_uncap(user_id, character_id):
     with Connect() as c:
@@ -88,7 +102,8 @@ def character_first_uncap(user_id, character_id):
     return error_return()
 
 
-@bp.route('/me/character/<int:character_id>/exp', methods=['POST'])  # 角色使用以太之滴
+# 角色使用以太之滴
+@bp.route('/me/character/<int:character_id>/exp', methods=['POST'])
 @auth_required(request)
 def character_exp(user_id, character_id):
     with Connect() as c:
@@ -106,6 +121,72 @@ def character_exp(user_id, character_id):
     return error_return()
 
 
+@bp.route('/me/save', methods=['GET'])  # 从云端同步
+@auth_required(request)
+def cloud_get(user_id):
+    with Connect() as c:
+        try:
+            user = User()
+            user.user_id = user_id
+            save = SaveData(c)
+            save.select_all(user)
+            return success_return(save.to_dict)
+        except ArcError as e:
+            return error_return(e)
+    return error_return()
+
+
+@bp.route('/me/save', methods=['POST'])  # 向云端同步
+@auth_required(request)
+def cloud_post(user_id):
+    with Connect() as c:
+        try:
+            user = User()
+            user.user_id = user_id
+            save = SaveData(c)
+            save.set_value(
+                'scores_data', request.form['scores_data'], request.form['scores_checksum'])
+            save.set_value(
+                'clearlamps_data', request.form['clearlamps_data'], request.form['clearlamps_checksum'])
+            save.set_value(
+                'clearedsongs_data', request.form['clearedsongs_data'], request.form['clearedsongs_checksum'])
+            save.set_value(
+                'unlocklist_data', request.form['unlocklist_data'], request.form['unlocklist_checksum'])
+            save.set_value(
+                'installid_data', request.form['installid_data'], request.form['installid_checksum'])
+            save.set_value('devicemodelname_data',
+                           request.form['devicemodelname_data'], request.form['devicemodelname_checksum'])
+            save.set_value(
+                'story_data', request.form['story_data'], request.form['story_checksum'])
+
+            save.update_all(user)
+            return success_return({'user_id': user.user_id})
+        except ArcError as e:
+            return error_return(e)
+    return error_return()
+
+
+@bp.route('/me/setting/<set_arg>', methods=['POST'])  # 三个设置
+@auth_required(request)
+def sys_set(user_id, set_arg):
+    with Connect() as c:
+        try:
+            value = request.form['value']
+            user = UserOnline(c, user_id)
+            if 'favorite_character' == set_arg:
+                user.change_favorite_character(int(value))
+            else:
+                value = 'true' == value
+                if 'is_hide_rating' == set_arg:
+                    user.change_is_hide_rating(value)
+                elif 'max_stamina_notification_enabled' == set_arg:
+                    user.change_max_stamina_notification_enabled(value)
+            return success_return(user.to_dict())
+        except ArcError as e:
+            return error_return(e)
+    return error_return()
+
+
 @bp.route('/me/request_delete', methods=['POST'])  # 删除账号
 @auth_required(request)
 def user_delete(user_id):