{
  "$defs": {
    "App": {
      "additionalProperties": false,
      "description": "The app: its title and what it holds. An app holds one room (a Room, a WatchTogether or a Show), and text, receipts and an energy meter beside it.",
      "properties": {
        "children": {
          "items": {
            "anyOf": [
              {
                "$ref": "#/$defs/Room"
              },
              {
                "$ref": "#/$defs/WatchTogether"
              },
              {
                "$ref": "#/$defs/Show"
              },
              {
                "$ref": "#/$defs/Text"
              },
              {
                "$ref": "#/$defs/Receipts"
              },
              {
                "$ref": "#/$defs/EnergyMeter"
              }
            ]
          },
          "type": "array"
        },
        "component": {
          "const": "App"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "title": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "component"
      ],
      "type": "object"
    },
    "Chat": {
      "additionalProperties": false,
      "description": "The room's chat: each message a signed event, verified before it is shown. Those who joined write; those who watch read.",
      "properties": {
        "children": {
          "maxItems": 0,
          "type": "array"
        },
        "component": {
          "const": "Chat"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "title": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "component"
      ],
      "type": "object"
    },
    "EnergyMeter": {
      "additionalProperties": false,
      "description": "What each action cost in energy, and how the figure was obtained (a page has no meter, so its figures are estimates, labelled so).",
      "properties": {
        "children": {
          "maxItems": 0,
          "type": "array"
        },
        "component": {
          "const": "EnergyMeter"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "title": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "component"
      ],
      "type": "object"
    },
    "Participants": {
      "additionalProperties": false,
      "description": "Who is in the room now, from the room's signed lifecycle.",
      "properties": {
        "children": {
          "maxItems": 0,
          "type": "array"
        },
        "component": {
          "const": "Participants"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "title": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "component"
      ],
      "type": "object"
    },
    "Player": {
      "additionalProperties": false,
      "description": "The room's video: each participant's camera laid out from the room's signed record, every frame checked before it is shown.",
      "properties": {
        "children": {
          "maxItems": 0,
          "type": "array"
        },
        "component": {
          "const": "Player"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "title": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "component"
      ],
      "type": "object"
    },
    "Poll": {
      "additionalProperties": false,
      "description": "A vote in a Show: the lead opens it, each viewer chooses one option, and the room's clock closes it and signs the result. `options` is a list of 2 to 32 texts; `seconds` how long it stays open (5 to 300; 30 when left out).",
      "properties": {
        "children": {
          "maxItems": 0,
          "type": "array"
        },
        "component": {
          "const": "Poll"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "options": {
              "type": "array"
            },
            "question": {
              "type": "string"
            },
            "seconds": {
              "type": "number"
            }
          },
          "required": [
            "options",
            "question"
          ],
          "type": "object"
        }
      },
      "required": [
        "component",
        "props"
      ],
      "type": "object"
    },
    "Receipts": {
      "additionalProperties": false,
      "description": "This page's receipts: every action a person takes here is sealed into a hash-chained log this page signs and verifies, and the room's objects checked against their receipts are counted.",
      "properties": {
        "children": {
          "maxItems": 0,
          "type": "array"
        },
        "component": {
          "const": "Receipts"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "title": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "component"
      ],
      "type": "object"
    },
    "Room": {
      "additionalProperties": false,
      "description": "A live room: people join with their camera and microphone, or watch. Every audio and video object is checked against its signed receipt before it is shown. Holds a Player for the room's video and a Chat; those who join can chat, those who watch read it.",
      "properties": {
        "children": {
          "items": {
            "anyOf": [
              {
                "$ref": "#/$defs/Player"
              },
              {
                "$ref": "#/$defs/Chat"
              },
              {
                "$ref": "#/$defs/Participants"
              },
              {
                "$ref": "#/$defs/Receipts"
              },
              {
                "$ref": "#/$defs/EnergyMeter"
              },
              {
                "$ref": "#/$defs/Text"
              }
            ]
          },
          "type": "array"
        },
        "component": {
          "const": "Room"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "title": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "component"
      ],
      "type": "object"
    },
    "Show": {
      "additionalProperties": false,
      "description": "A show: hosts on camera, the first of them leading; an audience that watches and votes. Holds a Player for the hosts' video, a Chat for the hosts, and Polls the lead opens and the audience answers. `audience` is how many inputs each viewer may send to one poll (1 to 255; 1 when left out).",
      "properties": {
        "children": {
          "items": {
            "anyOf": [
              {
                "$ref": "#/$defs/Player"
              },
              {
                "$ref": "#/$defs/Chat"
              },
              {
                "$ref": "#/$defs/Poll"
              },
              {
                "$ref": "#/$defs/Participants"
              },
              {
                "$ref": "#/$defs/Receipts"
              },
              {
                "$ref": "#/$defs/EnergyMeter"
              },
              {
                "$ref": "#/$defs/Text"
              }
            ]
          },
          "type": "array"
        },
        "component": {
          "const": "Show"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "audience": {
              "type": "number"
            },
            "title": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "component"
      ],
      "type": "object"
    },
    "Text": {
      "additionalProperties": false,
      "description": "A paragraph of text.",
      "properties": {
        "children": {
          "maxItems": 0,
          "type": "array"
        },
        "component": {
          "const": "Text"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "text": {
              "type": "string"
            }
          },
          "required": [
            "text"
          ],
          "type": "object"
        }
      },
      "required": [
        "component",
        "props"
      ],
      "type": "object"
    },
    "WatchTogether": {
      "additionalProperties": false,
      "description": "A watch room: everyone watches one file together, in sync; anyone may play, pause, seek or change the speed for everyone. `source` is the file's name within the app (for example \"film.mp4\"). A watch room carries the shared controls alone: it holds no Chat and no Poll.",
      "properties": {
        "children": {
          "items": {
            "anyOf": [
              {
                "$ref": "#/$defs/Participants"
              },
              {
                "$ref": "#/$defs/Receipts"
              },
              {
                "$ref": "#/$defs/EnergyMeter"
              },
              {
                "$ref": "#/$defs/Text"
              }
            ]
          },
          "type": "array"
        },
        "component": {
          "const": "WatchTogether"
        },
        "props": {
          "additionalProperties": false,
          "properties": {
            "source": {
              "type": "string"
            },
            "title": {
              "type": "string"
            }
          },
          "required": [
            "source"
          ],
          "type": "object"
        }
      },
      "required": [
        "component",
        "props"
      ],
      "type": "object"
    }
  },
  "$id": "https://git.transaction.science/Transaction-Science/open-standards/raw/branch/main/wai/wai-app/widgets/catalogue.json",
  "$ref": "#/$defs/App",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "WAI widgets"
}