const mysql = require('mysql2');

// 数据库配置
const dbConfig = {
  host: '129.211.213.226',
  port: 9527,
  user: 'root',
  password: 'aiotAiot123!',
  database: 'jiebandata'
};

// 创建连接
const connection = mysql.createConnection(dbConfig);

// 连接数据库
connection.connect((err) => {
  if (err) {
    console.error('数据库连接失败: ' + err.stack);
    return;
  }
  console.log('数据库连接成功，连接ID: ' + connection.threadId);
  
  // 查询所有表
  connection.query('SHOW TABLES', (error, results) => {
    if (error) {
      console.error('查询表失败: ' + error.stack);
      connection.end();
      return;
    }
    
    console.log('数据库中的所有表:');
    const tables = results.map(row => {
      const tableName = Object.values(row)[0];
      console.log('- ' + tableName);
      return tableName;
    });
    
    // 检查是否存在管理员表
    const adminTableExists = tables.some(table => 
      table.includes('admin') || table.includes('Admin') || table.includes('ADMIN')
    );
    
    if (adminTableExists) {
      console.log('\n✅ 找到可能的管理员相关表');
      
      // 显示管理员相关表结构
      const adminTables = tables.filter(table => 
        table.includes('admin') || table.includes('Admin') || table.includes('ADMIN')
      );
      
      showTableStructure(adminTables, 0);
    } else {
      console.log('\n❌ 未找到管理员相关表');
      
      // 显示所有表的简要信息
      showAllTablesInfo(tables, 0);
    }
  });
  
  // 显示表结构的递归函数
  function showTableStructure(tables, index) {
    if (index >= tables.length) {
      connection.end();
      return;
    }
    
    const tableName = tables[index];
    console.log(`\n${tableName} 表结构:`);
    
    connection.query(`DESCRIBE ${tableName}`, (error, results) => {
      if (error) {
        console.error(`查询 ${tableName} 表结构失败: ` + error.stack);
      } else {
        console.table(results.map(row => ({
          字段: row.Field,
          类型: row.Type,
          空: row.Null,
          键: row.Key,
          默认值: row.Default,
          额外: row.Extra
        })));
      }
      
      showTableStructure(tables, index + 1);
    });
  }
  
  // 显示所有表信息的递归函数
  function showAllTablesInfo(tables, index) {
    if (index >= tables.length) {
      // 创建管理员表的SQL
      console.log('\n=== 建议创建的管理员表结构 ===');
      const createAdminTableSQL = `
CREATE TABLE admins (
  id INT AUTO_INCREMENT PRIMARY KEY,
  username VARCHAR(50) NOT NULL UNIQUE,
  password VARCHAR(255) NOT NULL,
  email VARCHAR(100) UNIQUE,
  nickname VARCHAR(100),
  avatar VARCHAR(255),
  role ENUM('super_admin', 'admin', 'operator') DEFAULT 'admin',
  status TINYINT DEFAULT 1,
  last_login TIMESTAMP NULL,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
);`;
      
      console.log(createAdminTableSQL);
      
      // 插入测试数据的SQL
      console.log('\n=== 插入测试数据 ===');
      const insertTestDataSQL = `
INSERT INTO admins (username, password, email, nickname, role) VALUES
('admin', '$2b$10$rVuz/q97ocR1Zb07DzW5F.9Qx6B6HnV7JFzQb5nR1W3v7Z2mH4n6O', 'admin@example.com', '超级管理员', 'super_admin'),
('operator', '$2b$10$rVuz/q97ocR1Zb07DzW5F.9Qx6B6HnV7JFzQb5nR1W3v7Z2mH4n6O', 'operator@example.com', '操作员', 'operator');
`;
      
      console.log(insertTestDataSQL);
      
      connection.end();
      return;
    }
    
    const tableName = tables[index];
    console.log(`\n${tableName} 表信息:`);
    
    connection.query(`SELECT COUNT(*) as count FROM ${tableName}`, (error, results) => {
      if (error) {
        console.error(`查询 ${tableName} 表数据量失败: ` + error.stack);
      } else {
        console.log(`数据量: ${results[0].count} 条`);
      }
      
      showAllTablesInfo(tables, index + 1);
    });
  }
});