{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://demodb.dev/ovdb/schemas/ovdb-database-draft-1.schema.json",
  "title": "OpenVaultDB database descriptor draft 1",
  "type": "object",
  "additionalProperties": false,
  "required": ["format", "id", "localId", "serverId", "serverDbBaseUrl", "title", "description", "homepage", "apiUrl", "capabilities", "deployment", "model", "meaning", "publisher", "provenance", "licences", "recordsets"],
  "properties": {
    "format": { "const": "ovdb-database/draft-1" },
    "id": { "$ref": "#/$defs/httpsUrl" },
    "localId": { "type": "string", "pattern": "^[a-z][a-z0-9-]{0,39}$" },
    "serverId": { "$ref": "#/$defs/httpsUrl" },
    "serverDbBaseUrl": { "$ref": "#/$defs/httpsUrl" },
    "title": { "type": "string", "minLength": 1 },
    "description": { "type": "string", "minLength": 1 },
    "homepage": { "$ref": "#/$defs/httpsUrl" },
    "apiUrl": { "$ref": "#/$defs/httpsUrl" },
    "capabilities": {
      "type": "object", "additionalProperties": false,
      "required": ["read", "query", "write"],
      "properties": {
        "read": { "type": "boolean" }, "query": { "type": "boolean" }, "write": { "type": "boolean" }
      }
    },
    "deployment": {
      "type": "object", "additionalProperties": false,
      "required": ["engine", "url", "discovery"],
      "properties": {
        "engine": { "type": "string", "minLength": 1 },
        "url": { "$ref": "#/$defs/httpsUrl" },
        "discovery": { "$ref": "#/$defs/httpsUrl" }
      }
    },
    "model": { "$ref": "#/$defs/reference" },
    "meaning": { "$ref": "#/$defs/reference" },
    "publisher": {
      "type": "object", "additionalProperties": false,
      "required": ["name", "url", "repository"],
      "properties": {
        "name": { "type": "string", "minLength": 1 },
        "url": { "$ref": "#/$defs/httpsUrl" },
        "repository": { "$ref": "#/$defs/httpsUrl" }
      }
    },
    "provenance": {
      "type": "object", "additionalProperties": false,
      "required": ["repository", "revision", "path", "sha256", "license", "notes"],
      "properties": {
        "repository": { "$ref": "#/$defs/httpsUrl" },
        "revision": { "type": "string", "minLength": 1 },
        "path": { "type": "string", "minLength": 1 },
        "sha256": { "type": "string", "pattern": "^[a-f0-9]{64}$" },
        "license": { "type": "string", "minLength": 1 },
        "notes": { "type": "string" }
      }
    },
    "licences": {
      "type": "object", "additionalProperties": false,
      "required": ["data", "model", "meaning"],
      "properties": {
        "data": { "type": "string", "minLength": 1 },
        "model": { "type": "string", "minLength": 1 },
        "meaning": { "type": "string", "minLength": 1 }
      }
    },
    "schemaUrl": { "$ref": "#/$defs/httpsUrl" },
    "recordsets": {
      "type": "array", "minItems": 1,
      "items": {
        "type": "object", "additionalProperties": false,
        "required": ["name", "kind", "description", "rowCount", "columns", "primaryKey", "foreignKeys"],
        "properties": {
          "name": { "type": "string", "minLength": 1 },
          "modelEntity": { "type": "string", "minLength": 1 },
          "kind": { "enum": ["table", "view"] },
          "description": { "type": "string" },
          "rowCount": { "type": ["integer", "null"], "minimum": 0 },
          "columns": {
            "type": "array",
            "items": {
              "type": "object", "additionalProperties": false,
              "required": ["name", "type", "nullable", "primaryKey", "primaryKeyPosition", "defaultValue"],
              "properties": {
                "name": { "type": "string", "minLength": 1 },
                "type": { "type": "string" },
                "nullable": { "type": "boolean" },
                "primaryKey": { "type": "boolean" },
                "primaryKeyPosition": { "type": ["integer", "null"], "minimum": 1 },
                "defaultValue": { "type": ["string", "number", "null"] }
              }
            }
          },
          "primaryKey": {
            "type": "array",
            "items": {
              "type": "object", "additionalProperties": false,
              "required": ["column", "position"],
              "properties": { "column": { "type": "string" }, "position": { "type": "integer", "minimum": 1 } }
            }
          },
          "foreignKeys": {
            "type": "array",
            "items": {
              "type": "object", "additionalProperties": false,
              "required": ["column", "table", "referencedColumn", "constraint", "position"],
              "properties": {
                "column": { "type": "string" }, "table": { "type": "string" },
                "referencedColumn": { "type": "string" }, "constraint": { "type": "integer", "minimum": 0 },
                "position": { "type": "integer", "minimum": 0 }
              }
            }
          }
        }
      }
    }
  },
  "$defs": {
    "httpsUrl": { "type": "string", "pattern": "^https://[^\\s]+$" },
    "reference": {
      "type": "object", "additionalProperties": false,
      "required": ["id", "url"],
      "properties": {
        "id": { "type": "string", "minLength": 1 }, "url": { "$ref": "#/$defs/httpsUrl" },
        "hclUrl": { "$ref": "#/$defs/httpsUrl" }
      }
    }
  }
}