Update to v2.8.6 without release

- Code refactoring
- Update the song database
- Fix a bug of the friend system which arose in the last version
- Fix a bug of duplicate calculating finishing states when players finish playing the chart in Link Play.

latest version/core/item.py

@@ -1,7 +1,185 @@
+from sympy import Nor
+from .error import NoData, ItemUnavailable, ItemNotEnough, InputError
+
+
 class Item:
-    item_id = None
     item_type = None
-    is_available = None
 
     def __init__(self) -> None:
+        self.item_id = None
+        self.__amount = None
+        self.is_available = None
+
+    @property
+    def amount(self):
+        return self.__amount
+
+    @amount.setter
+    def amount(self, value: int):
+        self.__amount = int(value)
+
+    def user_claim_item(self, user):
+        # parameter: user - User类或子类的实例
         pass
+
+
+class NormalItem(Item):
+    def __init__(self, c) -> None:
+        super().__init__()
+        self.c = c
+
+    def user_claim_item(self, user):
+        if not self.is_available:
+            self.c.execute(
+                '''select is_available from item where item_id=? and type=?''', (self.item_id, self.item_type))
+            x = self.c.fetchone()
+            if x:
+                if x[0] == 0:
+                    self.is_available = False
+                    raise ItemUnavailable('The item is unavailable.')
+                else:
+                    self.is_available = True
+            else:
+                raise NoData('No item data.')
+
+        self.c.execute('''select exists(select * from user_item where user_id=? and item_id=? and type=?)''',
+                       (user.user_id, self.item_id, self.item_type))
+        if self.c.fetchone() == (0,):
+            self.c.execute('''insert into user_item values(:a,:b,:c,1)''',
+                           {'a': user.user_id, 'b': self.item_id, 'c': self.item_type})
+
+
+class PositiveItem(Item):
+    def __init__(self, c) -> None:
+        super().__init__()
+        self.c = c
+
+    def user_claim_item(self, user):
+        self.c.execute('''select amount from user_item where user_id=? and item_id=? and type=?''',
+                       (user.user_id, self.item_id, self.item_type))
+        x = self.c.fetchone()
+        if x:
+            if x[0] + self.amount < 0:  # 数量不足
+                raise ItemNotEnough(
+                    'The user does not have enough `%s`.' % self.item_id)
+            self.c.execute('''update user_item set amount=? where user_id=? and item_id=? and type=?''',
+                           (x[0]+self.amount, user.user_id, self.item_id, self.item_type))
+        else:
+            if self.amount < 0:  # 添加数量错误
+                raise InputError(
+                    'The amount of `%s` is wrong.' % self.item_id)
+            self.c.execute('''insert into user_item values(?,?,?,?)''',
+                           (user.user_id, self.item_id, self.item_type, self.amount))
+
+
+class ItemCore(PositiveItem):
+    item_type = 'core'
+
+    def __init__(self, c, core=None, reverse=False) -> None:
+        super().__init__(c)
+        self.is_available = True
+        if core:
+            self.item_id = core.item_id
+            self.amount = - core.amount if reverse else core.amount
+
+
+class ItemCharacter(Item):
+    item_type = 'character'
+
+    def __init__(self, c) -> None:
+        super().__init__()
+        self.c = c
+        self.is_available = True
+
+    def set_id(self, character_id):
+        # 将name: str转为character_id: int存到item_id里
+        if character_id.isdigit():
+            self.item_id = int(character_id)
+        else:
+            self.c.execute(
+                '''select character_id from character where name=?''', (character_id,))
+            x = self.c.fetchone()
+            if x:
+                self.item_id = x[0]
+            else:
+                raise NoData('No character `%s`.' % character_id)
+
+    def user_claim_item(self, user):
+        self.c.execute(
+            '''select exists(select * from user_char where user_id=? and character_id=?)''', (user.user_id, self.item_id))
+        if self.c.fetchone() == (0,):
+            self.c.execute(
+                '''insert into user_char values(?,?,1,0,0,0)''', (user.user_id, self.item_id))
+
+
+class Memory(Item):
+    item_type = 'memory'
+
+    def __init__(self, c) -> None:
+        super().__init__()
+        self.c = c
+        self.is_available = True
+
+    def user_claim_item(self, user):
+        self.c.execute(
+            '''select ticket from user where user_id=?''', (user.user_id,))
+        x = self.c.fetchone()
+        if x is not None:
+            self.c.execute('''update user set ticket=? where user_id=?''',
+                           (x[0]+self.amount, user.user_id))
+        else:
+            raise NoData('The ticket of the user is null.')
+
+
+class Anni5tix(PositiveItem):
+    item_type = 'anni5tix'
+
+    def __init__(self, c) -> None:
+        super().__init__(c)
+        self.is_available = True
+
+
+class WorldSong(NormalItem):
+    item_type = 'world_song'
+
+    def __init__(self, c) -> None:
+        super().__init__(c)
+
+
+class WorldUnlock(NormalItem):
+    item_type = 'world_unlock'
+
+    def __init__(self, c) -> None:
+        super().__init__(c)
+
+
+class Single(NormalItem):
+    item_type = 'single'
+
+    def __init__(self, c) -> None:
+        super().__init__(c)
+
+
+class Pack(NormalItem):
+    item_type = 'pack'
+
+    def __init__(self, c) -> None:
+        super().__init__(c)
+
+
+def get_user_cores(c, user) -> list:
+    # parameter: user - User类或子类的实例
+    # 得到用户的cores，返回字典列表
+    r = []
+    c.execute(
+        '''select item_id, amount from user_item where user_id = ? and type="core"''', (user.user_id,))
+    x = c.fetchall()
+    if x:
+        for i in x:
+            if i[1]:
+                amount = i[1]
+            else:
+                amount = 0
+            r.append({'core_type': i[0], 'amount': amount})
+
+    return r