{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.github.io/shelf/json-schema/shelf-gem-schema.json",
  "title": "Shelf Gem",
  "description": "A Gem is a curated, verified piece of knowledge in the Shelf platform representing a discrete answer, article, or knowledge unit.",
  "type": "object",
  "required": ["id", "title", "content", "status"],
  "properties": {
    "id": {
      "type": "string",
      "description": "Unique identifier for the Gem."
    },
    "title": {
      "type": "string",
      "description": "Title of the knowledge Gem."
    },
    "content": {
      "type": "string",
      "description": "The full text content of the Gem."
    },
    "status": {
      "type": "string",
      "enum": ["draft", "review", "published", "archived"],
      "description": "Lifecycle status of the Gem."
    },
    "tags": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Tags for categorizing and filtering the Gem."
    },
    "knowledgeBaseId": {
      "type": "string",
      "description": "ID of the knowledge base this Gem belongs to."
    },
    "authorId": {
      "type": "string",
      "description": "User ID of the Gem author."
    },
    "createdAt": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 timestamp when the Gem was created."
    },
    "updatedAt": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 timestamp when the Gem was last updated."
    },
    "publishedAt": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 timestamp when the Gem was published."
    },
    "language": {
      "type": "string",
      "description": "ISO 639-1 language code for the Gem content.",
      "example": "en"
    },
    "viewCount": {
      "type": "integer",
      "description": "Number of times this Gem has been viewed."
    },
    "helpfulCount": {
      "type": "integer",
      "description": "Number of times users marked this Gem as helpful."
    },
    "attachments": {
      "type": "array",
      "description": "List of file attachments associated with the Gem.",
      "items": {
        "type": "object",
        "properties": {
          "id": {
            "type": "string"
          },
          "name": {
            "type": "string"
          },
          "url": {
            "type": "string",
            "format": "uri"
          },
          "mimeType": {
            "type": "string"
          }
        }
      }
    }
  }
}