{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "$id": "https://picteus.github.io/picteus/jsonschema/recipe-v2.schema.json",
  "title": "GenerationRecipe",
  "type": "object",
  "properties": {
    "schemaVersion": {
      "type": "integer",
      "description": "The version of the schema the hereby recipe complies to",
      "format": "int32",
      "minimum": 1,
      "maximum": 2
    },
    "id": {
      "type": "string",
      "description": "The identifier of the recipe instance",
      "minLength": 1,
      "maxLength": 64
    },
    "url": {
      "type": "string",
      "description": "The URL of the recipe instance",
      "format": "uri",
      "pattern": "^(https?://|/?)[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]+$",
      "minLength": 1,
      "maxLength": 4096
    },
    "inceptionDate": {
      "type": "integer",
      "description": "The recipe inception date",
      "format": "int64",
      "minimum": -9223372036854776000,
      "maximum": 9223372036854776000
    },
    "author": {
      "type": "string",
      "description": "The author of the recipte",
      "pattern": "^[a-z0-9A-Z-_.:;|/ ]{1,128}$",
      "minLength": 1,
      "maxLength": 128
    },
    "modelTags": {
      "description": "The tags of the model generators",
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 4096,
        "minLength": 1,
        "pattern": "^(([a-z0-9A-Z-_.]{1,})/)?([a-z0-9A-Z-_.]{1,})(:([a-z0-9A-Z-_.]{1,}))?$"
      }
    },
    "software": {
      "type": "string",
      "description": "The software that ran the generation",
      "pattern": "^(([a-z0-9A-Z-_.]{1,})/)?([a-z0-9A-Z-_.]{1,})(:([a-z0-9A-Z-_.]{1,}))?$",
      "minLength": 1,
      "maxLength": 128
    },
    "inputAssets": {
      "description": "The identifiers or URLs of the input assets",
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 4096,
        "minLength": 1
      }
    },
    "aspectRatio": {
      "type": "number",
      "description": "The required image aspect ratio, i.e. the result of its width by its height",
      "format": "double",
      "minimum": 0,
      "exclusiveMinimum": true,
      "maximum": 1.7976931348623157e+308
    },
    "prompt": {
      "description": "The prompt which enabled to generate the image",
      "oneOf": [
        {
          "description": "In case of a prompt-based generated image",
          "type": "object",
          "properties": {
            "kind": {
              "description": "The kind of prompt",
              "allOf": [
                {
                  "type": "string",
                  "enum": [
                    "textual",
                    "instructions"
                  ],
                  "description": "The kind of prompt"
                }
              ],
              "type": "string"
            },
            "text": {
              "type": "string",
              "description": "The textual prompt",
              "minLength": 1,
              "maxLength": 131072
            }
          },
          "required": [
            "kind",
            "text"
          ]
        },
        {
          "description": "In case of a instructions-based generated image",
          "type": "object",
          "properties": {
            "kind": {
              "description": "The kind of prompt",
              "allOf": [
                {
                  "type": "string",
                  "enum": [
                    "textual",
                    "instructions"
                  ],
                  "description": "The kind of prompt"
                }
              ],
              "type": "string"
            },
            "value": {
              "type": "object",
              "description": "The instructions-based prompt",
              "additionalProperties": true
            }
          },
          "required": [
            "kind",
            "value"
          ]
        }
      ]
    }
  },
  "description": "The image generation recipe",
  "required": [
    "schemaVersion",
    "modelTags",
    "prompt"
  ]
}