const db = require('../config/database');

async function fixTeachers() {
    const departments = ['计算机学院', '软件学院', '信息工程学院', '理学院', '外国语学院'];
    const titles = ['教授', '副教授', '讲师', '助教'];
    
    try {
        const teachers = await db.query('SELECT id FROM teachers');
        for (let i = 0; i < teachers.length; i++) {
            const dept = departments[i % departments.length];
            const title = titles[i % titles.length];
            const contact = `139${Math.floor(Math.random() * 90000000 + 10000000)}`;
            
            await db.query(
                'UPDATE teachers SET department = ?, title = ?, contact_info = ? WHERE id = ?',
                [dept, title, contact, teachers[i].id]
            );
            
            // Also sync back to users table's class field if needed (though we'll use teachers table now)
            await db.query(
                'UPDATE users SET class = ? WHERE id = ?',
                [dept, teachers[i].id]
            );
        }
        console.log('教师信息修复完成！');
    } catch (err) {
        console.error('修复失败:', err);
    }
}

fixTeachers();