Defines a code-first dashboard with variables and widgets.

defmodule MyApp.Admin.Dashboards.Operations do
  use Incant.Dashboard

  title "Operations"

  variables do
    var :range, :date_range
  end

  grid columns: 12 do
    stat :total_requests, span: 3, query: &MyApp.Admin.Metrics.total_requests/2

    table :slow_requests, span: 6, query: &MyApp.Admin.Metrics.slow_requests/2 do
      column :timestamp, label: "Timestamp", format: :datetime
      column :duration_ms, label: "Duration", format: :number
    end
  end
end