/**
 * 数据库初始化脚本
 * 用于生产环境首次部署时创建表结构
 * 
 * 注意：此脚本为独立运行脚本，与 server.js 的初始化逻辑重复
 * 如果 server.js 已能正常完成初始化，则无需单独运行此脚本
 * 如需单独运行：node backend/scripts/init-database.js
 */

const { sequelize } = require('../db');
const SystemSetting = require('../models/SystemSetting');

// 默认系统设置（包含中文描述）
const defaultSettings = [
  // 全局配置
  { settingKey: 'site_name', settingValue: JSON.stringify('机柜管理系统'), settingType: 'string', category: 'general', description: '网站名称', isEditable: true },
  { settingKey: 'site_logo', settingValue: JSON.stringify(''), settingType: 'string', category: 'general', description: '网站Logo URL', isEditable: true },
  { settingKey: 'timezone', settingValue: JSON.stringify('Asia/Shanghai'), settingType: 'string', category: 'general', description: '时区设置', isEditable: true },
  { settingKey: 'date_format', settingValue: JSON.stringify('YYYY-MM-DD'), settingType: 'string', category: 'general', description: '日期格式', isEditable: true },
  { settingKey: 'session_timeout', settingValue: JSON.stringify(30), settingType: 'number', category: 'general', description: '会话超时时间(分钟)', isEditable: true },
  { settingKey: 'max_login_attempts', settingValue: JSON.stringify(5), settingType: 'number', category: 'general', description: '最大登录尝试次数', isEditable: true },
  { settingKey: 'maintenance_mode', settingValue: JSON.stringify(false), settingType: 'boolean', category: 'general', description: '维护模式', isEditable: true },
  { settingKey: 'frontend_port', settingValue: JSON.stringify(3000), settingType: 'number', category: 'general', description: '前端服务端口(修改后需重启前端服务)', isEditable: true },

  // 外观设置
  { settingKey: 'primary_color', settingValue: JSON.stringify('#667eea'), settingType: 'string', category: 'appearance', description: '主题主色调', isEditable: true },
  { settingKey: 'secondary_color', settingValue: JSON.stringify('#764ba2'), settingType: 'string', category: 'appearance', description: '主题辅助色调', isEditable: true },
  { settingKey: 'compact_mode', settingValue: JSON.stringify(false), settingType: 'boolean', category: 'appearance', description: '紧凑模式', isEditable: true },
  { settingKey: 'sidebar_collapsed', settingValue: JSON.stringify(false), settingType: 'boolean', category: 'appearance', description: '侧边栏默认折叠', isEditable: true },
  { settingKey: 'table_row_height', settingValue: JSON.stringify('default'), settingType: 'string', category: 'appearance', description: '表格行高: small/default/middle/large', isEditable: true },
  { settingKey: 'animation_enabled', settingValue: JSON.stringify(true), settingType: 'boolean', category: 'appearance', description: '启用动画效果', isEditable: true },

  // 关于页面
  { settingKey: 'app_version', settingValue: JSON.stringify('1.0.0'), settingType: 'string', category: 'about', description: '应用版本', isEditable: false },
  { settingKey: 'company_name', settingValue: JSON.stringify(''), settingType: 'string', category: 'about', description: '公司/组织名称', isEditable: true },
  { settingKey: 'contact_email', settingValue: JSON.stringify(''), settingType: 'string', category: 'about', description: '联系邮箱', isEditable: true },
  { settingKey: 'contact_phone', settingValue: JSON.stringify(''), settingType: 'string', category: 'about', description: '联系电话', isEditable: true },
  { settingKey: 'company_address', settingValue: JSON.stringify(''), settingType: 'string', category: 'about', description: '公司地址', isEditable: true },
  { settingKey: 'system_description', settingValue: JSON.stringify('机柜管理系统 - 专业的数据中心设备管理解决方案'), settingType: 'string', category: 'about', description: '系统描述', isEditable: true },
  { settingKey: 'privacy_policy', settingValue: JSON.stringify(''), settingType: 'string', category: 'about', description: '隐私政策URL', isEditable: true },
  { settingKey: 'terms_of_service', settingValue: JSON.stringify(''), settingType: 'string', category: 'about', description: '服务条款URL', isEditable: true },
];

async function initDatabase() {
  try {
    console.log('开始初始化数据库...');

    // 测试数据库连接
    await sequelize.authenticate();
    console.log('数据库连接成功');

    // 同步所有模型
    await sequelize.sync({ force: false, alter: true });
    console.log('数据库表结构同步完成');

    // 初始化或更新系统设置
    console.log('开始初始化/更新系统设置...');
    for (const setting of defaultSettings) {
      try {
        const existing = await SystemSetting.findByPk(setting.settingKey);
        if (!existing) {
          // 创建新设置
          await SystemSetting.create(setting);
          console.log(`创建设置: ${setting.settingKey}`);
        } else {
          // 更新描述字段（确保是中文）
          if (existing.description !== setting.description) {
            await existing.update({ description: setting.description });
            console.log(`更新描述: ${setting.settingKey} -> ${setting.description}`);
          }
        }
      } catch (error) {
        console.error(`处理设置 ${setting.settingKey} 失败:`, error.message);
      }
    }
    console.log('系统设置初始化/更新完成');

    console.log('数据库初始化完成！');
    process.exit(0);
  } catch (error) {
    console.error('数据库初始化失败:', error);
    process.exit(1);
  }
}

initDatabase();