// Cube.js 数据模型 - 订单示例
// 请根据实际数据库表结构修改

cube(`Orders`, {
  sql: `SELECT * FROM orders WHERE \${this.enabled}`,

  // measures（指标）
  measures: {
    count: {
      sql: `id`,
      type: `count`,
    },

    totalAmount: {
      sql: `amount`,
      type: `sum`,
      format: `currency`,
    },

    avgAmount: {
      sql: `amount`,
      type: `avg`,
      format: `currency`,
    },

    cancelRate: {
      sql: `CASE WHEN COUNT(*) > 0 THEN SUM(CASE WHEN status = 'cancelled' THEN 1 ELSE 0 END) / COUNT(*) ELSE 0 END`,
      type: `number`,
      format: `percent`,
    },
  },

  // dimensions（维度）
  dimensions: {
    id: {
      sql: `id`,
      type: `number`,
      primaryKey: true,
    },

    orderDate: {
      sql: `order_date`,
      type: `time`,
    },

    status: {
      sql: `status`,
      type: `string`,
    },

    category: {
      sql: `category`,
      type: `string`,
    },

    region: {
      sql: `region`,
      type: `string`,
    },

    channel: {
      sql: `channel`,
      type: `string`,
    },

    customerId: {
      sql: `customer_id`,
      type: `number`,
    },

    amount: {
      sql: `amount`,
      type: `number`,
      format: `currency`,
    },
  },

  // 预聚合配置
  preAggregations: {
    // 按月聚合（每小时刷新）
    ordersByMonth: {
      measures: [Orders.count, Orders.totalAmount, Orders.avgAmount],
      dimensions: [Orders.category, Orders.region],
      timeDimension: Orders.orderDate,
      granularity: `month`,
      refreshKey: {
        every: `1 hour`,
        timezone: 'Asia/Shanghai',
      },
    },

    // 按日聚合（高频查询，5分钟刷新）
    ordersByDay: {
      measures: [Orders.count, Orders.totalAmount, Orders.cancelRate],
      dimensions: [Orders.status, Orders.channel],
      timeDimension: Orders.orderDate,
      granularity: `day`,
      refreshKey: {
        every: `5 minutes`,
      },
    },

    // 按地区聚合（每小时刷新）
    ordersByRegion: {
      measures: [Orders.count, Orders.totalAmount],
      dimensions: [Orders.region, Orders.category],
      timeDimension: Orders.orderDate,
      granularity: `hour`,
      refreshKey: {
        every: `1 hour`,
      },
    },
  },

  // 数据安全：默认禁用
  enabled: true,
});