{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://b2base.eu/schemas/1.0.0-draft.1/process/handoff.schema.json",
  "title": "Workflowübergaben",
  "$comment": "B2Base 1.0.0-draft.1. Projektentwurf, kein durch ISO oder andere Normungsgremien verabschiedeter Standard.",
  "type": "object",
  "description": "Ein Übergabeauftrag; keine automatische Ausführung.",
  "properties": {
    "id": {
      "type": "string",
      "minLength": 1,
      "description": "Eindeutige Übergabekennung; Empfänger soll Wiederholungen anhand dieser ID erkennen.",
      "format": "uri"
    },
    "kind": {
      "type": "string",
      "minLength": 1,
      "description": "Art des Zielsystems.",
      "enum": [
        "workflow",
        "email",
        "script"
      ]
    },
    "target": {
      "type": "string",
      "minLength": 1,
      "description": "HTTPS-Ziel oder mailto-URI je nach kind; keine Zugangsdaten oder Tokens in der URI.",
      "format": "uri"
    },
    "sourceWorkflowId": {
      "type": "string",
      "minLength": 1,
      "description": "Kennung des sendenden Workflowlaufs.",
      "format": "uri"
    },
    "payload": {
      "type": "object",
      "description": "Explizit freigegebene Nutzdaten.",
      "properties": {
        "schemaId": {
          "type": "string",
          "minLength": 1,
          "description": "Schema der data-Nutzdaten.",
          "format": "uri"
        },
        "data": {
          "type": "object",
          "description": "Fachdaten; gegen schemaId gesondert vollständig validieren.",
          "additionalProperties": true
        },
        "taskRefs": {
          "type": "array",
          "description": "Aufgabenreferenzen.",
          "items": {
            "type": "string",
            "minLength": 1,
            "description": "Aufgaben-URI.",
            "format": "uri"
          }
        },
        "documentRefs": {
          "type": "array",
          "description": "Dokumentreferenzen.",
          "items": {
            "type": "string",
            "minLength": 1,
            "description": "Dokument-URI.",
            "format": "uri"
          }
        }
      },
      "required": [
        "schemaId",
        "data"
      ],
      "additionalProperties": false
    },
    "createdAt": {
      "type": "string",
      "minLength": 1,
      "description": "Zeitpunkt der Auftragserstellung.",
      "format": "date-time"
    },
    "extensions": {
      "type": "object",
      "description": "Vereinbarte Erweiterungen; Schlüssel als absolute URI des Herausgebers. Keine stillschweigende Änderung von Kernfeldern.",
      "properties": {},
      "additionalProperties": true,
      "propertyNames": {
        "format": "uri"
      }
    }
  },
  "required": [
    "id",
    "kind",
    "target",
    "payload"
  ],
  "additionalProperties": false,
  "allOf": [
    {
      "if": {
        "properties": {
          "kind": {
            "const": "email"
          }
        },
        "required": [
          "kind"
        ]
      },
      "then": {
        "properties": {
          "target": {
            "pattern": "^mailto:[^?]+"
          }
        }
      }
    },
    {
      "if": {
        "properties": {
          "kind": {
            "enum": [
              "workflow",
              "script"
            ]
          }
        },
        "required": [
          "kind"
        ]
      },
      "then": {
        "properties": {
          "target": {
            "pattern": "^https://"
          }
        }
      }
    }
  ],
  "examples": [
    {
      "id": "urn:example:handoff:42",
      "kind": "workflow",
      "target": "https://example.org/workflows/review",
      "payload": {
        "schemaId": "https://b2base.eu/schemas/1.0.0-draft.1/financial/money.schema.json",
        "data": {
          "amount": "125.00",
          "currency": "EUR"
        }
      }
    },
    {
      "id": "urn:example:handoff:43",
      "kind": "email",
      "target": "mailto:workflow@example.org",
      "payload": {
        "schemaId": "https://b2base.eu/schemas/1.0.0-draft.1/person/nameandbirthdetails.schema.json",
        "data": {
          "name": {
            "preferredName": "Sukarno"
          }
        }
      }
    }
  ]
}