{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "type": "object",
    "additionalProperties": true,
    "required": [ "command" ],
    "properties": {
	"command": {
	    "type": "string",
	    "enum": [ "start", "stop", "rescan", "startdir", "list" ],
	    "description": "the subcommand this is responding to"
	}
    },
    "allOf": [
	{
	    "if": {
		"properties": {
		    "command": {
			"type": "string",
			"enum": [ "start", "startdir", "rescan", "list" ]
		    }
		}
	    },
	    "then": {
		"additionalProperties": false,
		"required": [ "command", "plugins" ],
		"properties": {
		    "command": { },
		    "plugins": {
			"type": "array",
			"items": {
			    "type": "object",
			    "additionalProperties": false,
			    "required": [ "name", "active" ],
			    "properties": {
				"name": {
				    "type": "string",
				    "description": "full pathname of the plugin"
				},
				"active": {
				    "type": "boolean",
				    "description": "status; since plugins are configured asynchronously, a freshly started plugin may not appear immediately."
				}
			    }
			}
		    }
		}
	    }
	},
	{
	    "if": {
		"properties": {
		    "command": {
			"type": "string",
			"enum": [ "stop" ]
		    }
		}
	    },
	    "then": {
		"additionalProperties": false,
		"required": [ "command", "result" ],
		"properties": {
		    "command": { },
		    "result": {
			"type": "string",
			"description": "A message saying it successfully stopped"
		    }
		}
	    }
	}
    ]
}