{
  "lexicon": 1,
  "id": "at.turtleme.chat.message",
  "defs": {
    "main": {
      "type": "record",
      "description": "A single message sent to a turtle meat chat room. Messages live in the author's own repository; a room is assembled by reading the backlinks that point at it.",
      "key": "tid",
      "record": {
        "type": "object",
        "required": ["text", "room", "createdAt"],
        "properties": {
          "text": {
            "type": "string",
            "maxLength": 1000,
            "maxGraphemes": 200,
            "description": "The message body. It may carry Old School RuneScape style chat codes in the form 'colour:effect:message', for example 'red:wave:hello there'. A client that does not recognise the codes should display the string verbatim rather than stripping it."
          },
          "facets": {
            "type": "array",
            "maxLength": 20,
            "description": "Rich text over byte ranges of 'text', in Bluesky's facet shape. turtle meat writes and reads only mentions (app.bsky.richtext.facet#mention), each pointing at the DID the handle in the text meant when the line was sent. There is no threading: a mention points at an account, not at a message. Byte offsets count the whole of 'text', colour and effect codes included.",
            "items": {
              "type": "ref",
              "ref": "app.bsky.richtext.facet"
            }
          },
          "room": {
            "type": "string",
            "format": "uri",
            "description": "The room the message was sent to. 'https://turtleme.at/chat/global' is the global room. Because this is a link, a backlink index can list a room's messages without a dedicated AppView. A message written into a clan, an at.turtleme.chat.clan permissioned space, carries that space's at:// URI here instead; it lives in the author's permissioned repository for the space rather than their public one."
          },
          "createdAt": {
            "type": "string",
            "format": "datetime",
            "description": "Timestamp declared by the sending client. It is not verified, so readers that care about ordering should prefer the record key."
          }
        }
      }
    }
  }
}