{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.vik.guru/a3-stacked-cube-atlas-expanded/0.2/expanded-view-model.schema.json",
  "title": "A3 expanded visualization view model",
  "type": "object",
  "required": [
    "version",
    "asOf",
    "method",
    "frames",
    "lenses",
    "capabilities",
    "assuranceGates",
    "migrationGates",
    "runtimeItems",
    "discrepancies",
    "sources"
  ],
  "properties": {
    "$schema": { "type": "string" },
    "version": { "const": "0.2.0" },
    "asOf": { "type": "string", "format": "date" },
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      "type": "object",
      "required": ["name", "version", "url"],
      "properties": {
        "name": { "$ref": "#/$defs/text" },
        "version": { "$ref": "#/$defs/text" },
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          "type": "string",
          "format": "uri",
          "description": "Public source URI or stable source-key URN."
        }
      },
      "additionalProperties": false
    },
    "frames": { "$ref": "#/$defs/labeledNotes" },
    "lenses": { "$ref": "#/$defs/labeledNotes" },
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      "minItems": 1,
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        "type": "object",
        "required": ["id", "label", "short", "family", "states", "evidence"],
        "properties": {
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          "label": { "$ref": "#/$defs/text" },
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            "type": "array",
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            "maxItems": 4,
            "items": { "enum": ["legacy", "seam", "shadow", "new", "retained", "unknown"] }
          },
          "evidence": { "$ref": "#/$defs/text" }
        },
        "additionalProperties": false
      }
    },
    "assuranceGates": { "$ref": "#/$defs/evidenceItems" },
    "migrationGates": { "$ref": "#/$defs/migrationItems" },
    "runtimeItems": { "$ref": "#/$defs/evidenceItems" },
    "discrepancies": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": ["id", "question", "values", "confidence", "falsifier", "sources"],
        "properties": {
          "id": { "$ref": "#/$defs/id" },
          "question": { "$ref": "#/$defs/text" },
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            "type": "array",
            "minItems": 4,
            "maxItems": 4,
            "items": { "type": "integer", "minimum": 0, "maximum": 100 }
          },
          "confidence": { "$ref": "#/$defs/text" },
          "falsifier": { "$ref": "#/$defs/text" },
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        },
        "additionalProperties": false
      }
    },
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      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": ["id", "title", "url", "role", "boundary"],
        "properties": {
          "id": { "$ref": "#/$defs/sourceRef" },
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          },
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        "additionalProperties": false
      }
    }
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    "text": { "type": "string", "minLength": 1 },
    "id": { "type": "string", "pattern": "^[A-Za-z][A-Za-z0-9_-]*$" },
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      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
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    },
    "labeledNotes": {
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        "type": "object",
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          "label": { "$ref": "#/$defs/text" },
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        "additionalProperties": false
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        "properties": {
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          "boundary": { "$ref": "#/$defs/text" },
          "sources": { "$ref": "#/$defs/sourceRefs" }
        },
        "additionalProperties": false
      }
    },
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      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": ["id", "label", "status", "summary", "sources"],
        "properties": {
          "id": { "$ref": "#/$defs/id" },
          "label": { "$ref": "#/$defs/text" },
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          "summary": { "$ref": "#/$defs/text" },
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        },
        "additionalProperties": false
      }
    }
  }
}