{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.delta-sierra.com/data/ameco-ublgaps-import-schema.json",
  "title": "Delta-Sierra AMECO UBLGAPS vintage import",
  "type": "object",
  "required": [
    "provider",
    "database",
    "release_date",
    "series_code",
    "source_sha256",
    "observations"
  ],
  "properties": {
    "provider": {
      "const": "European Commission — DG ECFIN"
    },
    "database": {
      "const": "AMECO"
    },
    "release_date": {
      "type": "string",
      "format": "date"
    },
    "series_code": {
      "const": "FRA.1.0.319.0.UBLGAPS"
    },
    "source_url": {
      "type": "string",
      "format": "uri"
    },
    "source_sha256": {
      "type": "string",
      "pattern": "^[a-f0-9]{64}$"
    },
    "retrieved_at": {
      "type": "string",
      "format": "date-time"
    },
    "observations": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "year",
          "value",
          "status"
        ],
        "properties": {
          "year": {
            "type": "integer",
            "minimum": 1960,
            "maximum": 2100
          },
          "value": {
            "type": [
              "number",
              "null"
            ]
          },
          "status": {
            "enum": [
              "observed",
              "forecast",
              "na"
            ]
          },
          "note": {
            "type": "string"
          }
        },
        "additionalProperties": false
      }
    }
  },
  "additionalProperties": false
}