{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://l0g.fr/api/v1/signals/schema.json",
  "title": "l0g signal history",
  "description": "Contrat des observations point-in-time et evenements de franchissement des signaux l0g.",
  "oneOf": [
    {
      "$ref": "#/$defs/meta"
    },
    {
      "$ref": "#/$defs/observation"
    },
    {
      "$ref": "#/$defs/levelChange"
    }
  ],
  "$defs": {
    "meta": {
      "type": "object",
      "required": [
        "recordType",
        "version",
        "generated",
        "coverage",
        "policy"
      ],
      "properties": {
        "recordType": {
          "const": "meta"
        }
      },
      "additionalProperties": true
    },
    "observation": {
      "type": "object",
      "required": [
        "recordType",
        "recordId",
        "instrument",
        "observedAt",
        "value",
        "snapshotHash",
        "backtestUsable"
      ],
      "properties": {
        "recordType": {
          "const": "observation"
        },
        "instrument": {
          "enum": [
            "us",
            "eu",
            "yen",
            "energie",
            "debt"
          ]
        },
        "observedAt": {
          "type": [
            "string",
            "null"
          ],
          "format": "date-time"
        },
        "value": {
          "type": [
            "number",
            "null"
          ]
        },
        "rawValue": {
          "type": [
            "number",
            "null"
          ]
        },
        "backtestUsable": {
          "const": true
        }
      },
      "additionalProperties": true
    },
    "levelChange": {
      "type": "object",
      "required": [
        "recordType",
        "eventId",
        "instrument",
        "observedAt",
        "previousLevel",
        "currentLevel",
        "backtestUsable"
      ],
      "properties": {
        "recordType": {
          "const": "level-change"
        },
        "instrument": {
          "enum": [
            "us",
            "eu",
            "yen",
            "energie",
            "debt"
          ]
        },
        "observedAt": {
          "type": [
            "string",
            "null"
          ],
          "format": "date-time"
        },
        "backtestUsable": {
          "const": false
        }
      },
      "additionalProperties": true
    }
  }
}