{
    "$schema": "http://json-schema.org/draft-07/schema",
    "$id": "examples/4bits/rules_4bits.json",
    "title": "Rules I/O",
    "description": "A rules file to specify relation between input and output",
    "type": "object",
    "properties": {
        "metadata": {
            "description": "describes meta information for the rules",
            "type": "object",
            "properties": {
                "rule_name": {
                    "description": "name of the rule",
                    "type": "string"
                },
                "rule_description": {
                    "description": "description of the rule",
                    "type": "string"
                },
                "environment": {
                    "description": "environment of the to controlled device",
                    "type": "string",
                    "examples": ["inside", "outside", "house", "garage", "garden"]
                },
                "area": {
                    "description": "area of the to controlled device",
                    "type": "string",
                    "examples": ["kitchen", "living room", "terace", "flowerbed"]
                }
            },
            "required": ["rule_name", "rule_description", "environment", "area"]
        },
        "config": {
            "description": "configuration of the rules",
            "type": "object",
            "properties": {
                "input": {
                    "description": "topic and initial input values for the rules",
                    "type": "array",
                    "items": {
                        "type": "object",
                        "properties": {
                            "topic": {
                                "description": "unique identifier for the input",
                                "type": "string"
                            },
                            "payload": {
                                "description": "initial input value",
                                "type": ["string", "integer", "number"]
                            }
                        },
                        "required": ["topic", "payload"],
                        "minItems": 1,
                        "uniqueItems": true
                    },
                    "minItems": 1,
                    "uniqueItems": true
                },
                "output": {
                    "description": "topic and initial output values for the rules",
                    "type": "array",
                    "items": {
                        "type": "object",
                        "properties": {
                            "topic": {
                                "description": "unique identifier for the output",
                                "type": "string"
                            },
                            "payload": {
                                "description": "initial output value",
                                "type": ["string", "integer", "number"]
                            }
                        },
                        "required": ["topic", "payload"],
                        "minItems": 1,
                        "uniqueItems": true
                    },
                    "minItems": 1,
                    "uniqueItems": true
                }
        },
            "required": ["input", "output"]
        },
        "rules": {
            "description": "rules for all possible inputs",
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "rule": {
                        "description": "one rule for a possible input",
                        "type": "object",
                        "properties": {
                            "input": {
                                "description": "input values with an unique identifier (topic)",
                                "type": "array",
                                "items": {
                                    "type": "object",
                                    "properties": {
                                        "topic": {
                                            "description": "unique identifier for the input",
                                            "type": "string"
                                        },
                                        "payload": {
                                            "description": "input value",
                                            "type": ["string", "integer", "number"]
                                        }
                                    },
                                    "required": ["topic", "payload"]
                                }
                             },
                            "output": {
                                "description": "output values with an unique identifier (topic)",
                                "type": "array",
                                "items": {
                                    "type": "object",
                                    "properties": {
                                        "topic": {
                                            "description": "unique identifier for the output",
                                            "type": "string"
                                        },
                                        "payload": {
                                            "description": "output value for the given input",
                                            "type": ["string", "integer", "number"]
                                        }
                                    },
                                    "required": ["topic", "payload"]
                                }
                            }
                        }
                    }
                }
            },
            "minItems": 1,
            "uniqueItems": true
        }
    },
    "required": ["metadata", "config", "rules"]
}