{
    "$schema": "http://json-schema.org/draft-07/schema",
    "id": "https://choria.io/schemas/mcorpc/ddl/v1/agent.json",
    "type": "object",
    "definitions": {
        "shortname": {
            "type": "string",
            "minLength": 1,
            "pattern": "^[a-z0-9_]*$"
        },
        "base_action_input": {
            "type": "object",
            "properties": {
                "prompt": {
                    "type": "string",
                    "description": "When generating user interfaces use this text to prompt for information",
                    "minLength": 1
                },
                "description": {
                    "type": "string",
                    "description": "Short description of the specific input",
                    "minLength": 1
                },
                "optional": {
                    "type": "boolean"
                },
                "default": {
                    "type": [
                        "number",
                        "string",
                        "boolean",
                        "object",
                        "array",
                        "null"
                    ],
                    "description": "The default value the input will have when none is provided by the user"
                }
            },
            "required": [
                "prompt",
                "description",
                "optional"
            ]
        },
        "string_action_input": {
            "allOf": [
                {
                    "$ref": "#/definitions/base_action_input"
                },
                {
                    "type": "object",
                    "properties": {
                        "type": {
                            "type": "string",
                            "description": "The data type the input should be",
                            "enum": [
                                "string"
                            ]
                        }
                    },
                    "required": [
                        "type"
                    ]
                },
                {
                    "type": "object",
                    "properties": {
                        "validation": {
                            "type": "string"
                        },
                        "maxlength": {
                            "type": "number"
                        }
                    },
                    "required": [
                        "validation",
                        "maxlength"
                    ]
                }
            ]
        },
        "other_action_input": {
            "allOf": [
                {
                    "$ref": "#/definitions/base_action_input"
                },
                {
                    "type": "object",
                    "properties": {
                        "type": {
                            "type": "string",
                            "description": "The data type the input should be",
                            "enum": [
                                "boolean",
                                "integer",
                                "float",
                                "number",
                                "Hash",
                                "Array",
                                "hash",
                                "array"
                            ]
                        }
                    },
                    "required": [
                        "type"
                    ]
                }
            ]
        },
        "list_action_input": {
            "allOf": [
                {
                    "$ref": "#/definitions/base_action_input"
                },
                {
                    "type": "object",
                    "properties": {
                        "type": {
                            "type": "string",
                            "description": "The data type the input should be",
                            "enum": [
                                "list"
                            ]
                        },
                        "list": {
                            "type": "array",
                            "items": {
                                "type": "string"
                            }
                        }
                    },
                    "required": [
                        "type",
                        "list"
                    ]
                }
            ]
        }
    },
    "properties": {
        "metadata": {
            "type": "object",
            "required": [
                "name",
                "description",
                "author",
                "license",
                "version",
                "url",
                "timeout"
            ],
            "properties": {
                "name": {
                    "description": "The Agent name",
                    "$ref": "#/definitions/shortname"
                },
                "description": {
                    "description": "Short description of the agent function",
                    "type": "string",
                    "minLength": 1
                },
                "author": {
                    "description": "The person or entity responsible for maintenance of this agent",
                    "type": "string",
                    "minLength": 1,
                    "examples": [
                        "R.I.Pienaar <rip@devco.net>"
                    ]
                },
                "license": {
                    "description": "The licence this agent is distributed under",
                    "type": "string",
                    "minLength": 1,
                    "examples": [
                        "Apache-2.0"
                    ]
                },
                "version": {
                    "description": "SemVer version of this agent",
                    "type": "string",
                    "pattern": "^(\\d+\\.)?(\\d+\\.)?(\\*|\\d+)$"
                },
                "url": {
                    "description": "URL to visit for more information about the agent",
                    "type": "string",
                    "minLength": 1
                },
                "timeout": {
                    "description": "How long this agent is allowed to run",
                    "type": "integer",
                    "minimum": 2
                },
                "provider": {
                    "description": "The name of the provider that hosts this agent, example 'external'",
                    "type": "string"
                },
                "service": {
                    "description": "Indicates that an Agent should be run as a service",
                    "type": "boolean"
                }
            }
        },
        "actions": {
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "action": {
                        "description": "The action name",
                        "$ref": "#/definitions/shortname"
                    },
                    "description": {
                        "description": "Short description of what the action does",
                        "type": "string",
                        "minLength": 1
                    },
                    "input": {
                        "type": "object",
                        "additionalProperties": false,
                        "patternProperties": {
                            "^[a-z0-9_]*$": {
                                "anyOf": [
                                    {
                                        "$ref": "#/definitions/list_action_input"
                                    },
                                    {
                                        "$ref": "#/definitions/other_action_input"
                                    },
                                    {
                                        "$ref": "#/definitions/string_action_input"
                                    }
                                ]
                            }
                        }
                    },
                    "output": {
                        "type": "object",
                        "patternProperties": {
                            "^[a-z0-9_]*$": {
                                "required": ["description", "display_as"],
                                "properties": {
                                    "description": {
                                        "type": "string",
                                        "description": "Short description of what the output means"
                                    },
                                    "default": {
                                        "anyOf": [
                                            {
                                                "type": "array"
                                            },
                                            {
                                                "type": "boolean"
                                            },
                                            {
                                                "type": "integer"
                                            },
                                            {
                                                "type": "null"
                                            },
                                            {
                                                "type": "number"
                                            },
                                            {
                                                "type": "object"
                                            },
                                            {
                                                "type": "string"
                                            }
                                        ]
                                    },
                                    "display_as": {
                                        "type": "string",
                                        "description": "Short token to identify the data in the output as"
                                    },
                                    "type": {
                                        "type": "string",
                                        "description": "The data type being held in the output",
                                        "enum": [
                                            "string",
                                            "list",
                                            "boolean",
                                            "integer",
                                            "float",
                                            "number",
                                            "Hash",
                                            "Array",
                                            "hash",
                                            "array"
                                        ]
                                    }
                                }
                            }
                        }
                    },
                    "display": {
                        "type": "string",
                        "enum": [
                            "ok",
                            "failed",
                            "always"
                        ]
                    },
                    "aggregate": {
                        "type": "array",
                        "items": {
                            "type": "object",
                            "properties": {
                                "function": {
                                    "type": "string",
                                    "description": "The name of the aggregation function to use"
                                },
                                "args": {
                                    "description": "Arguments passed to the function, exact type depends on the function"
                                }
                            }
                        }
                    }
                },
                "required": [
                    "description",
                    "action",
                    "input",
                    "output"
                ]
            }
        }
    }
}