hubian
79e4eb4de0
- 数据库添加 is_deleted 和 deleted_at 字段 - 删除数据改为移动到回收站（软删除） - 回收站支持查看、恢复、彻底删除 - 支持一键清空回收站 - 侧边栏添加回收站入口
893 lines
34 KiB
Python
893 lines
34 KiB
Python
"""数据库操作"""
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import sqlite3
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import json
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import shutil
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import os
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from datetime import datetime, timedelta
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from typing import Optional, List, Dict, Any
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from contextlib import contextmanager
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from .config import DATABASE_URL, TODO_STATUS, PRIORITY_LEVELS
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# 备份目录
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BACKUP_DIR = os.path.join(os.path.dirname(DATABASE_URL), 'backups')
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class Database:
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"""SQLite数据库管理"""
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def __init__(self, db_path: str = DATABASE_URL):
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self.db_path = db_path
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self._initialized = False
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def _ensure_init(self):
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"""确保数据库已初始化"""
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if self._initialized:
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return
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self._init_db()
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self._initialized = True
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@contextmanager
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def get_conn(self):
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"""获取数据库连接"""
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conn = sqlite3.connect(self.db_path, timeout=30.0)
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conn.row_factory = sqlite3.Row
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# 启用WAL模式，提高并发性能
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conn.execute("PRAGMA journal_mode=WAL")
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conn.execute("PRAGMA busy_timeout=30000")
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try:
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yield conn
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finally:
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conn.close()
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def _init_db(self):
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"""初始化数据库表"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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# 主内容表
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS items (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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type TEXT NOT NULL DEFAULT 'text',
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title TEXT,
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content TEXT,
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url TEXT,
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source TEXT,
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status TEXT DEFAULT 'pending',
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priority TEXT DEFAULT 'medium',
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due_date TEXT,
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note TEXT,
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is_starred INTEGER DEFAULT 0,
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views INTEGER DEFAULT 0,
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is_deleted INTEGER DEFAULT 0,
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deleted_at TEXT,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL
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)
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""")
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# 标签表
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS tags (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL UNIQUE,
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color TEXT DEFAULT '#3498db',
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created_at TEXT NOT NULL
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)
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""")
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# 内容-标签关联表
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS item_tags (
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item_id INTEGER NOT NULL,
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tag_id INTEGER NOT NULL,
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PRIMARY KEY (item_id, tag_id),
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FOREIGN KEY (item_id) REFERENCES items(id) ON DELETE CASCADE,
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FOREIGN KEY (tag_id) REFERENCES tags(id) ON DELETE CASCADE
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)
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""")
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# 邮箱表
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS emails (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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email TEXT NOT NULL UNIQUE,
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name TEXT,
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created_at TEXT NOT NULL
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)
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""")
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# 邮件发送记录表
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS email_logs (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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item_id INTEGER NOT NULL,
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email TEXT NOT NULL,
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sent_at TEXT NOT NULL,
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success INTEGER DEFAULT 1,
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FOREIGN KEY (item_id) REFERENCES items(id) ON DELETE CASCADE
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)
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""")
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# 创建索引
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cursor.execute("CREATE INDEX IF NOT EXISTS idx_items_type ON items(type)")
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cursor.execute("CREATE INDEX IF NOT EXISTS idx_items_status ON items(status)")
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cursor.execute("CREATE INDEX IF NOT EXISTS idx_items_created ON items(created_at)")
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cursor.execute("CREATE INDEX IF NOT EXISTS idx_item_tags_item ON item_tags(item_id)")
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cursor.execute("CREATE INDEX IF NOT EXISTS idx_item_tags_tag ON item_tags(tag_id)")
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# 检查并添加 is_starred 字段（兼容旧数据库）
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try:
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cursor.execute("SELECT is_starred FROM items LIMIT 1")
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except sqlite3.OperationalError:
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cursor.execute("ALTER TABLE items ADD COLUMN is_starred INTEGER DEFAULT 0")
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# 创建 is_starred 索引（字段添加后再创建）
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cursor.execute("CREATE INDEX IF NOT EXISTS idx_items_starred ON items(is_starred)")
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# 检查并添加 views 字段（兼容旧数据库）
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try:
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cursor.execute("SELECT views FROM items LIMIT 1")
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except sqlite3.OperationalError:
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cursor.execute("ALTER TABLE items ADD COLUMN views INTEGER DEFAULT 0")
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# 检查并添加 is_deleted 和 deleted_at 字段（兼容旧数据库）
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try:
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cursor.execute("SELECT is_deleted FROM items LIMIT 1")
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except sqlite3.OperationalError:
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cursor.execute("ALTER TABLE items ADD COLUMN is_deleted INTEGER DEFAULT 0")
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try:
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cursor.execute("SELECT deleted_at FROM items LIMIT 1")
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except sqlite3.OperationalError:
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cursor.execute("ALTER TABLE items ADD COLUMN deleted_at TEXT")
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conn.commit()
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# ============ Item 操作 ============
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def create_item(self, type: str = "text", title: str = None, content: str = None,
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url: str = None, source: str = None, status: str = "pending",
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priority: str = "medium", due_date: str = None, note: str = None,
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tags: List[str] = None, is_starred: bool = False) -> int:
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"""创建新条目"""
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self._ensure_init()
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now = datetime.now().isoformat()
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# 验证状态
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if type == "todo" and status not in TODO_STATUS:
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status = "pending"
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if priority not in PRIORITY_LEVELS:
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priority = "medium"
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with self.get_conn() as conn:
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cursor = conn.cursor()
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cursor.execute("""
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INSERT INTO items (type, title, content, url, source, status, priority, due_date, note, is_starred, created_at, updated_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
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""", (type, title, content, url, source, status, priority, due_date, note, 1 if is_starred else 0, now, now))
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item_id = cursor.lastrowid
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# 添加标签
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if tags:
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self._add_tags_to_item(conn, item_id, tags)
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conn.commit()
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return item_id
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def get_item(self, item_id: int) -> Optional[Dict[str, Any]]:
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"""获取单个条目"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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cursor.execute("SELECT * FROM items WHERE id = ?", (item_id,))
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row = cursor.fetchone()
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if not row:
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return None
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item = dict(row)
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item['tags'] = self._get_item_tags(conn, item_id)
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return item
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def list_items(self, type: str = None, status: str = None, tag: str = None,
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keyword: str = None, starred: bool = None, sort_by: str = None,
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sort_order: str = None, limit: int = 50, offset: int = 0) -> List[Dict[str, Any]]:
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"""列出条目
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sort_by: created_at, updated_at
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sort_order: desc, asc
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"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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query = "SELECT DISTINCT i.* FROM items i"
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params = []
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conditions = []
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# 只显示未删除的数据
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conditions.append("i.is_deleted = 0")
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# 标签过滤需要JOIN
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if tag:
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query += " JOIN item_tags it ON i.id = it.item_id JOIN tags t ON it.tag_id = t.id"
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conditions.append("t.name = ?")
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params.append(tag)
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if type:
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conditions.append("i.type = ?")
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params.append(type)
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if status:
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conditions.append("i.status = ?")
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params.append(status)
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if starred is not None:
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conditions.append("i.is_starred = ?")
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params.append(1 if starred else 0)
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if keyword:
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conditions.append("(i.title LIKE ? OR i.content LIKE ? OR i.note LIKE ?)")
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keyword_pattern = f"%{keyword}%"
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params.extend([keyword_pattern, keyword_pattern, keyword_pattern])
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if conditions:
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query += " WHERE " + " AND ".join(conditions)
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# 排序逻辑
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if sort_by == 'updated_at':
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order_field = 'i.updated_at'
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elif sort_by == 'created_at':
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order_field = 'i.created_at'
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else:
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# 默认：重点关注优先 + 创建时间降序
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order_field = 'i.created_at'
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order_dir = 'DESC' if (sort_order == 'asc' or sort_order is None) else 'ASC'
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# 这里反转逻辑：用户选择"降序"时用DESC，选择"升序"时用ASC
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if sort_order == 'asc':
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order_dir = 'ASC'
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elif sort_order == 'desc':
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order_dir = 'DESC'
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else:
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order_dir = 'DESC' # 默认降序
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# 如果有指定排序字段，按该字段排序；否则默认重点关注优先
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if sort_by:
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query += f" ORDER BY {order_field} {order_dir} LIMIT ? OFFSET ?"
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else:
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# 默认：重点关注优先，然后创建时间降序
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query += f" ORDER BY i.is_starred DESC, i.created_at DESC LIMIT ? OFFSET ?"
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params.extend([limit, offset])
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cursor.execute(query, params)
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items = []
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for row in cursor.fetchall():
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item = dict(row)
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item['tags'] = self._get_item_tags(conn, item['id'])
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items.append(item)
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return items
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def count_items(self, type: str = None, status: str = None, tag: str = None,
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keyword: str = None, starred: bool = None) -> int:
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"""计算符合条件的条目总数"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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query = "SELECT COUNT(DISTINCT i.id) as count FROM items i"
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params = []
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conditions = []
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# 标签过滤需要JOIN
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if tag:
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query += " JOIN item_tags it ON i.id = it.item_id JOIN tags t ON it.tag_id = t.id"
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conditions.append("t.name = ?")
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params.append(tag)
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if type:
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conditions.append("i.type = ?")
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params.append(type)
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if status:
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conditions.append("i.status = ?")
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params.append(status)
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if starred is not None:
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conditions.append("i.is_starred = ?")
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params.append(1 if starred else 0)
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if keyword:
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conditions.append("(i.title LIKE ? OR i.content LIKE ? OR i.note LIKE ?)")
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keyword_pattern = f"%{keyword}%"
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params.extend([keyword_pattern, keyword_pattern, keyword_pattern])
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if conditions:
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query += " WHERE " + " AND ".join(conditions)
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cursor.execute(query, params)
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return cursor.fetchone()['count']
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def update_item(self, item_id: int, **kwargs) -> bool:
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"""更新条目"""
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allowed_fields = ['type', 'title', 'content', 'url', 'source', 'status', 'priority', 'due_date', 'note', 'is_starred']
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update_fields = {k: v for k, v in kwargs.items() if k in allowed_fields}
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# 只有 tags 变化也算有效更新
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if not update_fields and 'tags' not in kwargs:
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return False
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now = datetime.now().isoformat()
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with self.get_conn() as conn:
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cursor = conn.cursor()
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# 检查条目是否存在
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cursor.execute("SELECT id FROM items WHERE id = ?", (item_id,))
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if not cursor.fetchone():
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return False
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if update_fields:
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set_clause = ", ".join(f"{k} = ?" for k in update_fields.keys())
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set_clause += ", updated_at = ?"
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values = list(update_fields.values()) + [now, item_id]
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cursor.execute(f"UPDATE items SET {set_clause} WHERE id = ?", values)
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if 'tags' in kwargs:
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# 先删除旧标签关联
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cursor.execute("DELETE FROM item_tags WHERE item_id = ?", (item_id,))
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# 添加新标签
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if kwargs['tags']:
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self._add_tags_to_item(conn, item_id, kwargs['tags'])
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conn.commit()
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return True
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def delete_item(self, item_id: int) -> bool:
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"""删除条目（移动到回收站）"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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now = datetime.now().isoformat()
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cursor.execute("UPDATE items SET is_deleted = 1, deleted_at = ? WHERE id = ?", (now, item_id))
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conn.commit()
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return cursor.rowcount > 0
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def list_trash(self, limit: int = 50, offset: int = 0) -> List[Dict[str, Any]]:
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"""列出回收站数据"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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cursor.execute("SELECT * FROM items WHERE is_deleted = 1 ORDER BY deleted_at DESC LIMIT ? OFFSET ?", (limit, offset))
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items = []
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for row in cursor.fetchall():
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item = dict(row)
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item['tags'] = self._get_item_tags(conn, item['id'])
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items.append(item)
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return items
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def count_trash(self) -> int:
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"""计算回收站数据总数"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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cursor.execute("SELECT COUNT(*) as count FROM items WHERE is_deleted = 1")
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return cursor.fetchone()['count']
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def restore_item(self, item_id: int) -> bool:
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"""从回收站恢复数据"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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cursor.execute("UPDATE items SET is_deleted = 0, deleted_at = NULL WHERE id = ?", (item_id,))
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conn.commit()
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return cursor.rowcount > 0
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def delete_permanently(self, item_id: int) -> bool:
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"""彻底删除数据（从数据库中删除）"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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# 删除标签关联
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cursor.execute("DELETE FROM item_tags WHERE item_id = ?", (item_id,))
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# 删除邮件发送记录
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cursor.execute("DELETE FROM email_logs WHERE item_id = ?", (item_id,))
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# 删除数据
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cursor.execute("DELETE FROM items WHERE id = ?", (item_id,))
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conn.commit()
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return cursor.rowcount > 0
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def empty_trash(self) -> int:
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"""清空回收站"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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# 获取所有回收站数据ID
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cursor.execute("SELECT id FROM items WHERE is_deleted = 1")
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ids = [row['id'] for row in cursor.fetchall()]
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# 删除所有关联数据
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for item_id in ids:
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cursor.execute("DELETE FROM item_tags WHERE item_id = ?", (item_id,))
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cursor.execute("DELETE FROM email_logs WHERE item_id = ?", (item_id,))
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# 删除所有回收站数据
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cursor.execute("DELETE FROM items WHERE is_deleted = 1")
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deleted_count = cursor.rowcount
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conn.commit()
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return deleted_count
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def toggle_star(self, item_id: int) -> bool:
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"""切换重点关注状态"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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# 先获取当前状态
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cursor.execute("SELECT is_starred FROM items WHERE id = ?", (item_id,))
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row = cursor.fetchone()
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if not row:
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return False
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new_status = 0 if row['is_starred'] else 1
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now = datetime.now().isoformat()
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cursor.execute("UPDATE items SET is_starred = ?, updated_at = ? WHERE id = ?", (new_status, now, item_id))
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conn.commit()
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return True
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def set_star(self, item_id: int, starred: bool = True) -> bool:
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"""设置重点关注状态"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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now = datetime.now().isoformat()
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cursor.execute("UPDATE items SET is_starred = ?, updated_at = ? WHERE id = ?", (1 if starred else 0, now, item_id))
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conn.commit()
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return cursor.rowcount > 0
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def increment_views(self, item_id: int) -> bool:
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"""增加阅读数"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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cursor.execute("UPDATE items SET views = views + 1 WHERE id = ?", (item_id,))
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conn.commit()
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return cursor.rowcount > 0
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# ============ Tag 操作 ============
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def create_tag(self, name: str, color: str = "#3498db") -> int:
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"""创建标签"""
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now = datetime.now().isoformat()
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with self.get_conn() as conn:
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cursor = conn.cursor()
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try:
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cursor.execute("INSERT INTO tags (name, color, created_at) VALUES (?, ?, ?)",
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(name, color, now))
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conn.commit()
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return cursor.lastrowid
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except sqlite3.IntegrityError:
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# 标签已存在
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cursor.execute("SELECT id FROM tags WHERE name = ?", (name,))
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return cursor.fetchone()['id']
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def list_tags(self) -> List[Dict[str, Any]]:
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"""列出所有标签"""
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with self.get_conn() as conn:
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cursor = conn.cursor()
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cursor.execute("""
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SELECT t.*, COUNT(it.item_id) as item_count
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FROM tags t
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LEFT JOIN item_tags it ON t.id = it.tag_id
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GROUP BY t.id
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ORDER BY t.name
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""")
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return [dict(row) for row in cursor.fetchall()]
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def update_tag(self, tag_id: int, name: str) -> bool:
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||
"""更新标签名称"""
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
# 检查名称是否已存在（排除自己）
|
||
cursor.execute("SELECT id FROM tags WHERE name = ? AND id != ?", (name, tag_id))
|
||
if cursor.fetchone():
|
||
return False # 名称已存在
|
||
cursor.execute("UPDATE tags SET name = ? WHERE id = ?", (name, tag_id))
|
||
conn.commit()
|
||
return cursor.rowcount > 0
|
||
|
||
def delete_tag(self, tag_id: int = None, name: str = None) -> bool:
|
||
"""删除标签"""
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
if name:
|
||
cursor.execute("DELETE FROM tags WHERE name = ?", (name,))
|
||
elif tag_id:
|
||
cursor.execute("DELETE FROM tags WHERE id = ?", (tag_id,))
|
||
conn.commit()
|
||
return cursor.rowcount > 0
|
||
|
||
# ============ 辅助方法 ============
|
||
|
||
def _add_tags_to_item(self, conn, item_id: int, tags: List[str]):
|
||
"""为条目添加标签"""
|
||
cursor = conn.cursor()
|
||
for tag_name in tags:
|
||
tag_name = tag_name.strip()
|
||
if not tag_name:
|
||
continue
|
||
# 确保标签存在 - 使用同一个连接
|
||
cursor.execute("SELECT id FROM tags WHERE name = ?", (tag_name,))
|
||
row = cursor.fetchone()
|
||
if row:
|
||
tag_id = row['id']
|
||
else:
|
||
# 创建新标签
|
||
now = datetime.now().isoformat()
|
||
cursor.execute("INSERT INTO tags (name, color, created_at) VALUES (?, '#3498db', ?)",
|
||
(tag_name, now))
|
||
tag_id = cursor.lastrowid
|
||
# 创建关联
|
||
cursor.execute("INSERT OR IGNORE INTO item_tags (item_id, tag_id) VALUES (?, ?)",
|
||
(item_id, tag_id))
|
||
|
||
def _get_item_tags(self, conn, item_id: int) -> List[str]:
|
||
"""获取条目的标签"""
|
||
cursor = conn.cursor()
|
||
cursor.execute("""
|
||
SELECT t.name FROM tags t
|
||
JOIN item_tags it ON t.id = it.tag_id
|
||
WHERE it.item_id = ?
|
||
ORDER BY t.name
|
||
""", (item_id,))
|
||
return [row['name'] for row in cursor.fetchall()]
|
||
|
||
# ============ Email 操作 ============
|
||
|
||
def create_email(self, email: str, name: str = None) -> int:
|
||
"""创建邮箱"""
|
||
now = datetime.now().isoformat()
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
try:
|
||
cursor.execute("INSERT INTO emails (email, name, created_at) VALUES (?, ?, ?)",
|
||
(email, name, now))
|
||
conn.commit()
|
||
return cursor.lastrowid
|
||
except sqlite3.IntegrityError:
|
||
# 邮箱已存在，返回已有ID
|
||
cursor.execute("SELECT id FROM emails WHERE email = ?", (email,))
|
||
return cursor.fetchone()['id']
|
||
|
||
def list_emails(self) -> List[Dict[str, Any]]:
|
||
"""列出所有邮箱"""
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
cursor.execute("SELECT * FROM emails ORDER BY created_at DESC")
|
||
return [dict(row) for row in cursor.fetchall()]
|
||
|
||
def get_email(self, email_id: int) -> Optional[Dict[str, Any]]:
|
||
"""获取单个邮箱"""
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
cursor.execute("SELECT * FROM emails WHERE id = ?", (email_id,))
|
||
row = cursor.fetchone()
|
||
return dict(row) if row else None
|
||
|
||
def update_email(self, email_id: int, email: str = None, name: str = None) -> bool:
|
||
"""更新邮箱"""
|
||
now = datetime.now().isoformat()
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
if email:
|
||
# 检查邮箱是否已存在（排除自己）
|
||
cursor.execute("SELECT id FROM emails WHERE email = ? AND id != ?", (email, email_id))
|
||
if cursor.fetchone():
|
||
return False # 邎箱已存在
|
||
if email and name:
|
||
cursor.execute("UPDATE emails SET email = ?, name = ? WHERE id = ?", (email, name, email_id))
|
||
elif email:
|
||
cursor.execute("UPDATE emails SET email = ? WHERE id = ?", (email, email_id))
|
||
elif name:
|
||
cursor.execute("UPDATE emails SET name = ? WHERE id = ?", (name, email_id))
|
||
conn.commit()
|
||
return cursor.rowcount > 0
|
||
|
||
def delete_email(self, email_id: int) -> bool:
|
||
"""删除邮箱"""
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
cursor.execute("DELETE FROM emails WHERE id = ?", (email_id,))
|
||
conn.commit()
|
||
return cursor.rowcount > 0
|
||
|
||
# ============ 邮件日志 操作 ============
|
||
|
||
def log_email_send(self, item_id: int, email: str, success: bool = True) -> int:
|
||
"""记录邮件发送"""
|
||
now = datetime.now().isoformat()
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
cursor.execute("""
|
||
INSERT INTO email_logs (item_id, email, sent_at, success)
|
||
VALUES (?, ?, ?, ?)
|
||
""", (item_id, email, now, 1 if success else 0))
|
||
conn.commit()
|
||
return cursor.lastrowid
|
||
|
||
def get_email_logs(self, item_id: int) -> List[Dict[str, Any]]:
|
||
"""获取收藏的邮件发送记录"""
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
cursor.execute("""
|
||
SELECT * FROM email_logs
|
||
WHERE item_id = ?
|
||
ORDER BY sent_at DESC
|
||
""", (item_id,))
|
||
return [dict(row) for row in cursor.fetchall()]
|
||
|
||
def stats(self) -> Dict[str, Any]:
|
||
"""获取统计信息"""
|
||
self._ensure_init()
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
|
||
stats = {}
|
||
|
||
# 总数
|
||
cursor.execute("SELECT COUNT(*) as count FROM items")
|
||
stats['total'] = cursor.fetchone()['count']
|
||
|
||
# 按类型统计
|
||
cursor.execute("SELECT type, COUNT(*) as count FROM items GROUP BY type")
|
||
stats['by_type'] = {row['type']: row['count'] for row in cursor.fetchall()}
|
||
|
||
# 待办状态统计
|
||
cursor.execute("SELECT status, COUNT(*) as count FROM items WHERE type = 'todo' GROUP BY status")
|
||
stats['todo_status'] = {row['status']: row['count'] for row in cursor.fetchall()}
|
||
|
||
# 标签数
|
||
cursor.execute("SELECT COUNT(*) as count FROM tags")
|
||
stats['tags'] = cursor.fetchone()['count']
|
||
|
||
return stats
|
||
|
||
# ============ 提醒相关 ============
|
||
|
||
def get_reminders(self) -> Dict[str, Any]:
|
||
"""获取提醒信息：即将到期和已过期的待办"""
|
||
self._ensure_init()
|
||
with self.get_conn() as conn:
|
||
cursor = conn.cursor()
|
||
now = datetime.now()
|
||
|
||
reminders = {
|
||
'overdue': [], # 已过期
|
||
'due_today': [], # 今天到期
|
||
'due_soon': [] # 24小时内到期（不含今天）
|
||
}
|
||
|
||
# 查询未完成的待办（有截止日期的）
|
||
cursor.execute("""
|
||
SELECT * FROM items
|
||
WHERE type = 'todo'
|
||
AND status != 'completed'
|
||
AND due_date IS NOT NULL
|
||
AND due_date != ''
|
||
ORDER BY due_date ASC
|
||
""")
|
||
|
||
for row in cursor.fetchall():
|
||
item = dict(row)
|
||
item['tags'] = self._get_item_tags(conn, item['id'])
|
||
|
||
try:
|
||
due_date_str = item['due_date']
|
||
# 支持多种日期格式
|
||
if 'T' in due_date_str:
|
||
# ISO 格式：2026-04-16T14:30
|
||
due_date = datetime.strptime(due_date_str[:16], '%Y-%m-%dT%H:%M')
|
||
elif len(due_date_str) == 10:
|
||
# 只有日期：2026-04-16，视为当天 23:59:59
|
||
due_date = datetime.strptime(due_date_str, '%Y-%m-%d').replace(hour=23, minute=59, second=59)
|
||
else:
|
||
# 其他格式，尝试解析
|
||
due_date = datetime.strptime(due_date_str.split('.')[0], '%Y-%m-%dT%H:%M:%S')
|
||
|
||
# 计算距离到期的时间
|
||
time_left = due_date - now
|
||
|
||
if time_left.total_seconds() < 0:
|
||
# 已过期
|
||
days_overdue = abs(int(time_left.total_seconds() / 86400))
|
||
item['days_overdue'] = days_overdue
|
||
reminders['overdue'].append(item)
|
||
elif time_left.total_seconds() < 86400: # 24小时内
|
||
# 判断是今天还是明天
|
||
if due_date.date() == now.date():
|
||
reminders['due_today'].append(item)
|
||
else:
|
||
reminders['due_soon'].append(item)
|
||
elif due_date.date() == now.date():
|
||
# 今天到期（超过24小时的情况，比如现在凌晨，截止时间是晚上）
|
||
reminders['due_today'].append(item)
|
||
except (ValueError, AttributeError) as e:
|
||
# 日期格式错误，跳过
|
||
continue
|
||
|
||
# 统计总数
|
||
reminders['total'] = len(reminders['overdue']) + len(reminders['due_today']) + len(reminders['due_soon'])
|
||
|
||
return reminders
|
||
|
||
# ============ 备份操作 ============
|
||
|
||
def create_backup(self, manual: bool = False) -> Dict[str, Any]:
|
||
"""创建数据库备份"""
|
||
import os
|
||
|
||
# 确保备份目录存在
|
||
os.makedirs(BACKUP_DIR, exist_ok=True)
|
||
|
||
now = datetime.now()
|
||
backup_name = now.strftime('%Y-%m-%d_%H%M%S')
|
||
if manual:
|
||
backup_name += '_manual'
|
||
backup_path = os.path.join(BACKUP_DIR, f'{backup_name}.db')
|
||
|
||
# 复制数据库文件
|
||
shutil.copy2(self.db_path, backup_path)
|
||
|
||
# 获取备份信息
|
||
backup_info = {
|
||
'name': backup_name,
|
||
'path': backup_path,
|
||
'size': os.path.getsize(backup_path),
|
||
'created_at': now.isoformat(),
|
||
'manual': manual,
|
||
'is_first_of_month': now.day == 1
|
||
}
|
||
|
||
# 保存备份元数据
|
||
self._save_backup_meta(backup_info)
|
||
|
||
# 清理旧备份
|
||
self._cleanup_old_backups()
|
||
|
||
return backup_info
|
||
|
||
def list_backups(self) -> List[Dict[str, Any]]:
|
||
"""列出所有备份"""
|
||
import os
|
||
|
||
if not os.path.exists(BACKUP_DIR):
|
||
return []
|
||
|
||
# 读取备份元数据
|
||
meta_path = os.path.join(BACKUP_DIR, 'backup_meta.json')
|
||
if os.path.exists(meta_path):
|
||
with open(meta_path, 'r') as f:
|
||
backups = json.load(f)
|
||
else:
|
||
# 从文件重建元数据
|
||
backups = []
|
||
for f in os.listdir(BACKUP_DIR):
|
||
if f.endswith('.db'):
|
||
path = os.path.join(BACKUP_DIR, f)
|
||
backups.append({
|
||
'name': f.replace('.db', ''),
|
||
'path': path,
|
||
'size': os.path.getsize(path),
|
||
'created_at': datetime.fromtimestamp(os.path.getmtime(path)).isoformat(),
|
||
'manual': '_manual' in f,
|
||
'is_first_of_month': self._is_first_of_month_filename(f)
|
||
})
|
||
|
||
# 按时间倒序排列
|
||
backups.sort(key=lambda x: x['created_at'], reverse=True)
|
||
|
||
return backups
|
||
|
||
def restore_backup(self, backup_name: str) -> bool:
|
||
"""恢复备份"""
|
||
import os
|
||
|
||
backup_path = os.path.join(BACKUP_DIR, f'{backup_name}.db')
|
||
if not os.path.exists(backup_path):
|
||
return False
|
||
|
||
# 先备份当前数据库（以防万一）
|
||
current_backup = self.db_path + '.before_restore'
|
||
shutil.copy2(self.db_path, current_backup)
|
||
|
||
# 恢复备份
|
||
shutil.copy2(backup_path, self.db_path)
|
||
|
||
return True
|
||
|
||
def delete_backup(self, backup_name: str) -> bool:
|
||
"""删除备份"""
|
||
import os
|
||
|
||
backup_path = os.path.join(BACKUP_DIR, f'{backup_name}.db')
|
||
if not os.path.exists(backup_path):
|
||
return False
|
||
|
||
os.remove(backup_path)
|
||
|
||
# 更新元数据
|
||
self._remove_backup_meta(backup_name)
|
||
|
||
return True
|
||
|
||
def _save_backup_meta(self, backup_info: Dict[str, Any]):
|
||
"""保存备份元数据"""
|
||
import os
|
||
|
||
meta_path = os.path.join(BACKUP_DIR, 'backup_meta.json')
|
||
|
||
# 读取现有元数据
|
||
backups = []
|
||
if os.path.exists(meta_path):
|
||
with open(meta_path, 'r') as f:
|
||
backups = json.load(f)
|
||
|
||
# 添加新备份
|
||
backups.append(backup_info)
|
||
|
||
# 保存
|
||
with open(meta_path, 'w') as f:
|
||
json.dump(backups, f, indent=2)
|
||
|
||
def _remove_backup_meta(self, backup_name: str):
|
||
"""从元数据中删除备份"""
|
||
import os
|
||
|
||
meta_path = os.path.join(BACKUP_DIR, 'backup_meta.json')
|
||
if not os.path.exists(meta_path):
|
||
return
|
||
|
||
with open(meta_path, 'r') as f:
|
||
backups = json.load(f)
|
||
|
||
backups = [b for b in backups if b['name'] != backup_name]
|
||
|
||
with open(meta_path, 'w') as f:
|
||
json.dump(backups, f, indent=2)
|
||
|
||
def _is_first_of_month_filename(self, filename: str) -> bool:
|
||
"""判断是否是每月第一天的备份"""
|
||
# 格式：2026-04-01_040000.db 或 2026-05-01_...
|
||
try:
|
||
date_part = filename.split('_')[0]
|
||
day = int(date_part.split('-')[2])
|
||
return day == 1
|
||
except:
|
||
return False
|
||
|
||
def _cleanup_old_backups(self):
|
||
"""清理旧备份：保留30天 + 每月第一天"""
|
||
import os
|
||
|
||
backups = self.list_backups()
|
||
now = datetime.now()
|
||
keep_paths = []
|
||
|
||
for backup in backups:
|
||
backup_date = datetime.fromisoformat(backup['created_at'])
|
||
days_old = (now - backup_date).days
|
||
|
||
# 保留条件：
|
||
# 1. 手动备份永久保留（最多10个）
|
||
# 2. 30天内的备份
|
||
# 3. 每月第一天的备份
|
||
|
||
if backup['manual']:
|
||
# 手动备份保留，但最多10个
|
||
manual_backups = [b for b in backups if b['manual']]
|
||
if manual_backups.index(backup) < 10:
|
||
keep_paths.append(backup['path'])
|
||
else:
|
||
self.delete_backup(backup['name'])
|
||
elif days_old <= 30:
|
||
keep_paths.append(backup['path'])
|
||
elif backup['is_first_of_month']:
|
||
# 每月第一天永久保留
|
||
keep_paths.append(backup['path'])
|
||
else:
|
||
# 删除
|
||
self.delete_backup(backup['name'])
|
||
|
||
|
||
# 全局数据库实例
|
||
db = Database() |