{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/sense/main/json-schema/sense-usage-history.json",
  "title": "Sense Usage History",
  "description": "Historical energy consumption data returned by /app/monitors/{monitor_id}/history/usage. Includes total kWh and a per-device breakdown for the requested scale and time period.",
  "type": "object",
  "properties": {
    "start": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 UTC timestamp marking the start of the reported period.",
      "example": "2026-06-13T00:00:00Z"
    },
    "consumption": {
      "type": "object",
      "description": "Aggregate consumption data for the period.",
      "properties": {
        "usage_total_kwh": {
          "type": "number",
          "description": "Total energy consumed in kWh.",
          "minimum": 0,
          "example": 18.42
        }
      },
      "required": ["usage_total_kwh"]
    },
    "device_breakdown": {
      "type": "array",
      "description": "Per-device energy consumption breakdown.",
      "items": {
        "type": "object",
        "properties": {
          "id": {
            "type": "string",
            "description": "Device ID"
          },
          "name": {
            "type": "string",
            "description": "Device name"
          },
          "icon": {
            "type": "string",
            "description": "Device icon identifier"
          },
          "consumption": {
            "type": "object",
            "properties": {
              "usage_total_kwh": {
                "type": "number",
                "description": "Device energy consumption in kWh for the period.",
                "minimum": 0
              }
            }
          }
        },
        "required": ["id", "name"]
      }
    }
  },
  "required": ["start", "consumption"]
}