{
  "title": "Product performance",
  "description": "Revenue and units by product, region and period, 2025",
  "maxRows": 5000,
  "sources": {
    "sales": { "type": "csv", "path": "data/sales.csv" }
  },
  "queries": {
    "totals": "SELECT SUM(amount) AS revenue, SUM(units) AS units, AVG(amount) AS avg_order_value FROM sales",
    "rev_by_product_region": "SELECT product, region, SUM(amount) AS revenue FROM sales GROUP BY 1, 2 ORDER BY 1, 2",
    "units_by_product_quarter": "SELECT 'Q' || quarter(date) AS quarter, product, SUM(units) AS units FROM sales GROUP BY 1, 2 ORDER BY 1, 2",
    "rev_region_month": "SELECT region, date_trunc('month', date) AS month, SUM(amount) AS revenue FROM sales GROUP BY 1, 2 ORDER BY 2, 1",
    "share_by_product": "SELECT product, SUM(amount) AS revenue, SUM(amount) / (SELECT SUM(amount) FROM sales) AS share FROM sales GROUP BY 1 ORDER BY 2 DESC"
  },
  "kpis": [
    { "id": "k1", "title": "Revenue", "query": "totals", "field": "revenue", "format": "currency" },
    { "id": "k2", "title": "Units", "query": "totals", "field": "units", "format": "number" },
    { "id": "k3", "title": "Average order value", "query": "totals", "field": "avg_order_value", "format": "currency" }
  ],
  "charts": [
    {
      "id": "c1",
      "title": "Revenue by product and region",
      "query": "rev_by_product_region",
      "width": "half",
      "vegaLite": {
        "mark": "bar",
        "encoding": {
          "x": { "field": "product", "type": "nominal", "sort": null, "title": null },
          "xOffset": { "field": "region", "type": "nominal" },
          "y": { "field": "revenue", "type": "quantitative", "title": "Revenue" },
          "color": { "field": "region", "type": "nominal", "title": "Region" }
        }
      }
    },
    {
      "id": "c2",
      "title": "Revenue share by product",
      "query": "share_by_product",
      "width": "half",
      "vegaLite": {
        "mark": "bar",
        "encoding": {
          "y": { "field": "product", "type": "nominal", "sort": null, "title": null },
          "x": { "field": "share", "type": "quantitative", "title": "Share of revenue", "axis": { "format": ".0%" } }
        }
      }
    },
    {
      "id": "c3",
      "title": "Units per product per quarter",
      "query": "units_by_product_quarter",
      "vegaLite": {
        "mark": { "type": "line", "point": true },
        "encoding": {
          "x": { "field": "quarter", "type": "ordinal", "title": null },
          "y": { "field": "units", "type": "quantitative", "title": "Units" },
          "color": { "field": "product", "type": "nominal", "title": "Product" }
        }
      }
    },
    {
      "id": "c4",
      "title": "Revenue by region and month",
      "query": "rev_region_month",
      "vegaLite": {
        "mark": "rect",
        "encoding": {
          "x": { "field": "month", "type": "ordinal", "timeUnit": "utcmonth", "title": null },
          "y": { "field": "region", "type": "nominal", "sort": null, "title": null },
          "color": { "field": "revenue", "type": "quantitative", "title": "Revenue" }
        }
      }
    }
  ]
}