{
  "$defs": {
    "GalleryCredit": {
      "additionalProperties": false,
      "if": {
        "properties": {
          "license": {
            "enum": [
              "CC-BY-4.0",
              "MIT"
            ]
          }
        }
      },
      "properties": {
        "creator": {
          "maxLength": 100,
          "minLength": 1,
          "pattern": "\\S",
          "title": "Creator",
          "type": "string"
        },
        "license": {
          "const": "CC0-1.0",
          "title": "License",
          "type": "string"
        },
        "attribution": {
          "default": "",
          "maxLength": 500,
          "title": "Attribution",
          "type": "string"
        },
        "source": {
          "default": "",
          "maxLength": 500,
          "title": "Source",
          "type": "string"
        },
        "modified": {
          "default": false,
          "title": "Modified",
          "type": "boolean"
        }
      },
      "required": [
        "creator",
        "license"
      ],
      "then": {
        "properties": {
          "attribution": {
            "pattern": "\\S"
          }
        },
        "required": [
          "attribution"
        ]
      },
      "title": "GalleryCredit",
      "type": "object"
    },
    "GalleryEvidence": {
      "additionalProperties": false,
      "description": "What the provider answered when the work was curated: the field, its value and when.",
      "properties": {
        "provider_field": {
          "maxLength": 100,
          "minLength": 1,
          "pattern": "\\S",
          "title": "Provider Field",
          "type": "string"
        },
        "provider_value": {
          "anyOf": [
            {
              "type": "boolean"
            },
            {
              "maxLength": 100,
              "minLength": 1,
              "pattern": "\\S",
              "type": "string"
            }
          ],
          "title": "Provider Value"
        },
        "image_url": {
          "maxLength": 1000,
          "pattern": "^https://\\S+$",
          "title": "Image Url",
          "type": "string"
        },
        "observed_at": {
          "maxLength": 40,
          "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d+)?(?:Z|[+-]\\d{2}:\\d{2})$",
          "title": "Observed At",
          "type": "string"
        },
        "image_field": {
          "anyOf": [
            {
              "maxLength": 100,
              "minLength": 1,
              "pattern": "\\S",
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Image Field"
        },
        "uuid": {
          "anyOf": [
            {
              "maxLength": 100,
              "minLength": 1,
              "pattern": "\\S",
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Uuid"
        }
      },
      "required": [
        "provider_field",
        "provider_value",
        "image_url",
        "observed_at"
      ],
      "title": "GalleryEvidence",
      "type": "object"
    },
    "GalleryPlacard": {
      "additionalProperties": false,
      "properties": {
        "title": {
          "maxLength": 240,
          "minLength": 1,
          "pattern": "\\S",
          "title": "Title",
          "type": "string"
        },
        "creator": {
          "maxLength": 240,
          "minLength": 1,
          "pattern": "\\S",
          "title": "Creator",
          "type": "string"
        },
        "date": {
          "maxLength": 100,
          "minLength": 1,
          "pattern": "\\S",
          "title": "Date",
          "type": "string"
        },
        "medium": {
          "anyOf": [
            {
              "maxLength": 240,
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Medium"
        },
        "dimensions": {
          "anyOf": [
            {
              "maxLength": 240,
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Dimensions"
        },
        "institution": {
          "maxLength": 100,
          "minLength": 1,
          "pattern": "\\S",
          "title": "Institution",
          "type": "string"
        },
        "canonical_url": {
          "maxLength": 1000,
          "pattern": "^https://\\S+$",
          "title": "Canonical Url",
          "type": "string"
        }
      },
      "required": [
        "title",
        "creator",
        "date",
        "institution",
        "canonical_url"
      ],
      "title": "GalleryPlacard",
      "type": "object"
    },
    "GalleryPresentation": {
      "additionalProperties": false,
      "description": "How the collection is shown by default; a household changes it on its Artwork page.",
      "properties": {
        "fit": {
          "default": "fit",
          "enum": [
            "fit",
            "fill",
            "smart"
          ],
          "title": "Fit",
          "type": "string"
        },
        "mat_style": {
          "default": "museum",
          "enum": [
            "full_bleed",
            "modern",
            "museum",
            "shadow_box"
          ],
          "title": "Mat Style",
          "type": "string"
        },
        "placard_seconds": {
          "default": 12,
          "maximum": 120,
          "minimum": 5,
          "title": "Placard Seconds",
          "type": "integer"
        },
        "cadence_seconds": {
          "default": 45,
          "maximum": 86400,
          "minimum": 15,
          "title": "Cadence Seconds",
          "type": "integer"
        }
      },
      "title": "GalleryPresentation",
      "type": "object"
    },
    "GalleryResource": {
      "additionalProperties": false,
      "allOf": [
        {
          "if": {
            "properties": {
              "media_type": {
                "const": "image/png"
              }
            }
          },
          "then": {
            "properties": {
              "path": {
                "pattern": "\\.png$"
              }
            }
          }
        },
        {
          "if": {
            "properties": {
              "media_type": {
                "const": "image/jpeg"
              }
            }
          },
          "then": {
            "properties": {
              "path": {
                "pattern": "\\.jpg$"
              }
            }
          }
        },
        {
          "if": {
            "properties": {
              "media_type": {
                "const": "image/webp"
              }
            }
          },
          "then": {
            "properties": {
              "path": {
                "pattern": "\\.webp$"
              }
            }
          }
        }
      ],
      "description": "A gallery's file: a work's JPEG or a WebP thumbnail or strip, dedicated to the public\ndomain (D6.1).",
      "else": {
        "properties": {
          "duration_seconds": {
            "type": "null"
          }
        }
      },
      "if": {
        "properties": {
          "media_type": {
            "const": "audio/mpeg"
          }
        }
      },
      "properties": {
        "path": {
          "pattern": "^assets/[a-f0-9]{64}\\.(?:png|jpg|webp|mp3)$",
          "title": "Path",
          "type": "string"
        },
        "sha256": {
          "pattern": "^[a-f0-9]{64}$",
          "title": "Sha256",
          "type": "string"
        },
        "length": {
          "maximum": 8388608,
          "minimum": 1,
          "title": "Length",
          "type": "integer"
        },
        "media_type": {
          "enum": [
            "image/jpeg",
            "image/webp"
          ],
          "title": "Media Type",
          "type": "string"
        },
        "duration_seconds": {
          "anyOf": [
            {
              "maximum": 30,
              "minimum": 0.01,
              "type": "number"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Duration Seconds"
        },
        "credit": {
          "$ref": "#/$defs/GalleryCredit"
        }
      },
      "required": [
        "path",
        "sha256",
        "length",
        "media_type",
        "credit"
      ],
      "then": {
        "properties": {
          "length": {
            "maximum": 2097152
          },
          "duration_seconds": {
            "type": "number"
          },
          "path": {
            "pattern": "\\.mp3$"
          }
        },
        "required": [
          "duration_seconds"
        ]
      },
      "title": "GalleryResource",
      "type": "object"
    },
    "GalleryRights": {
      "additionalProperties": false,
      "properties": {
        "license": {
          "const": "CC0-1.0",
          "default": "CC0-1.0",
          "title": "License",
          "type": "string"
        },
        "uri": {
          "const": "https://creativecommons.org/publicdomain/zero/1.0/",
          "default": "https://creativecommons.org/publicdomain/zero/1.0/",
          "title": "Uri",
          "type": "string"
        },
        "evidence": {
          "$ref": "#/$defs/GalleryEvidence"
        }
      },
      "required": [
        "evidence"
      ],
      "title": "GalleryRights",
      "type": "object"
    },
    "GalleryWork": {
      "additionalProperties": false,
      "properties": {
        "id": {
          "pattern": "^[a-z][a-z0-9-]{0,39}$",
          "title": "Id",
          "type": "string"
        },
        "image": {
          "pattern": "^assets/[a-f0-9]{64}\\.jpg$",
          "title": "Image",
          "type": "string"
        },
        "thumbnail": {
          "pattern": "^assets/[a-f0-9]{64}\\.webp$",
          "title": "Thumbnail",
          "type": "string"
        },
        "alt_text": {
          "maxLength": 240,
          "minLength": 1,
          "pattern": "\\S",
          "title": "Alt Text",
          "type": "string"
        },
        "width": {
          "maximum": 4096,
          "minimum": 1,
          "title": "Width",
          "type": "integer"
        },
        "height": {
          "maximum": 4096,
          "minimum": 1,
          "title": "Height",
          "type": "integer"
        },
        "orientation": {
          "enum": [
            "landscape",
            "portrait"
          ],
          "title": "Orientation",
          "type": "string"
        },
        "focal_x": {
          "default": 0.5,
          "maximum": 1,
          "minimum": 0,
          "title": "Focal X",
          "type": "number"
        },
        "focal_y": {
          "default": 0.5,
          "maximum": 1,
          "minimum": 0,
          "title": "Focal Y",
          "type": "number"
        },
        "mean_colour": {
          "pattern": "^#[0-9a-f]{6}$",
          "title": "Mean Colour",
          "type": "string"
        },
        "placard": {
          "$ref": "#/$defs/GalleryPlacard"
        },
        "rights": {
          "$ref": "#/$defs/GalleryRights"
        }
      },
      "required": [
        "id",
        "image",
        "thumbnail",
        "alt_text",
        "width",
        "height",
        "orientation",
        "mean_colour",
        "placard",
        "rights"
      ],
      "title": "GalleryWork",
      "type": "object"
    }
  },
  "additionalProperties": false,
  "description": "An art collection (art backgrounds plan, D2): works with placards and CC0 rights evidence,\nno locales and no activities. The host installs it into its gallery, never into a card.",
  "else": {
    "properties": {
      "works": {
        "items": {
          "properties": {
            "orientation": {
              "const": "portrait"
            }
          }
        }
      }
    }
  },
  "if": {
    "properties": {
      "shape": {
        "const": "landscape"
      }
    }
  },
  "properties": {
    "schema_version": {
      "const": 2,
      "default": 2,
      "title": "Schema Version",
      "type": "integer"
    },
    "kind": {
      "const": "gallery",
      "default": "gallery",
      "title": "Kind",
      "type": "string"
    },
    "name": {
      "maxLength": 100,
      "minLength": 1,
      "pattern": "\\S",
      "title": "Name",
      "type": "string"
    },
    "description": {
      "maxLength": 240,
      "minLength": 1,
      "pattern": "\\S",
      "title": "Description",
      "type": "string"
    },
    "shape": {
      "enum": [
        "landscape",
        "portrait"
      ],
      "title": "Shape",
      "type": "string"
    },
    "presentation": {
      "$ref": "#/$defs/GalleryPresentation"
    },
    "strip": {
      "pattern": "^assets/[a-f0-9]{64}\\.webp$",
      "title": "Strip",
      "type": "string"
    },
    "resources": {
      "items": {
        "$ref": "#/$defs/GalleryResource"
      },
      "maxItems": 2046,
      "minItems": 3,
      "title": "Resources",
      "type": "array"
    },
    "works": {
      "items": {
        "$ref": "#/$defs/GalleryWork"
      },
      "maxItems": 200,
      "minItems": 1,
      "title": "Works",
      "type": "array"
    }
  },
  "required": [
    "name",
    "description",
    "shape",
    "strip",
    "resources",
    "works"
  ],
  "then": {
    "properties": {
      "works": {
        "items": {
          "properties": {
            "orientation": {
              "const": "landscape"
            }
          }
        }
      }
    }
  },
  "title": "GalleryDefinition",
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}