{
  "type": "object",
  "properties": {
    "system_status": {
      "type": "string",
      "enum": ["init", "tumblr", "indexing", "ready"],
      "default": "init"
    },
    "oauth_consumer_key": { "type": "string" },
    "oauth_secret_key": { "type": "string" },

    "tumblr_access_token": { "type": "string" },
    "tumblr_refresh_token": { "type": "string" },
    "tumblr_expiry_date": { "type": "number" },

    "follow_index": {
      "type": "object",
      "additionalProperties": {
        "type": "object",
        "properties": {
          "checked": { "type": "boolean", "default": false },
          "tags": { "type": "array", "items": { "type": "string" }, "uniqueItems": true, "default": [] }
        }
      },
      "default": {}
    }
  }
}