# -*- coding: utf-8 -*-
import sqlite3
import sys

# 设置输出编码为UTF-8
sys.stdout.reconfigure(encoding='utf-8')

db_path = 'instance/database.db'

try:
    conn = sqlite3.connect(db_path)
    cursor = conn.cursor()

    # 检查数据库编码
    cursor.execute('PRAGMA encoding')
    encoding = cursor.fetchone()[0]
    print(f"数据库编码: {encoding}")
    print("-" * 50)

    # 获取所有表
    cursor.execute("SELECT name FROM sqlite_master WHERE type='table'")
    tables = [row[0] for row in cursor.fetchall()]
    print(f"\n数据表列表 (共{len(tables)}个):")
    for table in tables:
        print(f"  - {table}")

    print("\n" + "=" * 50)

    # 检查每个表的数据
    for table in tables:
        cursor.execute(f"SELECT COUNT(*) FROM {table}")
        count = cursor.fetchone()[0]
        print(f"\n表 '{table}': {count} 条记录")

        # 显示表结构
        cursor.execute(f"PRAGMA table_info({table})")
        columns = cursor.fetchall()
        print(f"  字段: {', '.join([col[1] for col in columns])}")

        # 显示前3条数据示例
        if count > 0:
            cursor.execute(f"SELECT * FROM {table} LIMIT 3")
            rows = cursor.fetchall()
            print(f"  示例数据 (前{len(rows)}条):")
            for i, row in enumerate(rows, 1):
                print(f"    记录{i}: {row[:5]}...")  # 只显示前5个字段

    conn.close()
    print("\n" + "=" * 50)
    print("数据库检查完成！")

except Exception as e:
    print(f"错误: {e}")
    import traceback
    traceback.print_exc()