{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "title": "JSON Schema tibi-server field configuration",
    "description": "tibi-server field linter",
    "type": "object",
    "additionalProperties": false,
    "patternProperties": {
        "^x\\-": {
            "description": "template property"
        }
    },
    "properties": {
        "name": {
            "type": "string",
            "description": "name of field",
            "pattern": "^[0-9a-zA-Z_]+$"
        },
        "type": {
            "enum": [
                "string",
                "string[]",
                "number",
                "number[]",
                "boolean",
                "object",
                "object[]",
                "file",
                "file[]",
                "date",
                "any"
            ]
        },
        "index": {
            "type": "array",
            "items": {
                "enum": [
                    "single",
                    "unique",
                    "text",
                    "sparse",
                    "background"
                ]
            }
        },
        "subFields": {
            "oneOf": [
                {
                    "$comment": "for include tag",
                    "type": "string"
                },
                {
                    "type": "array",
                    "description": "sub fields of object",
                    "items": {
                        "oneOf": [
                            {
                                "$comment": "for include tag",
                                "type": "string"
                            },
                            {
                                "$ref": "#"
                            }
                        ]
                    }
                }
            ]
        },
        "validator": {
            "type": "object",
            "description": "field validator",
            "additionalProperties": false,
            "properties": {
                "required": {
                    "type": "boolean",
                    "description": "force field as required"
                },
                "allowZero": {
                    "type": "boolean",
                    "description": "allow for required fields that the value can be an empty string or 0 for number type"
                },
                "eval": {
                    "type": "string",
                    "description": "javascript validator which failes if evaluates to false or string as error message, with following variables: $this, $parent, $stack, $auth, context"
                },
                "minLength": {
                    "type": "number",
                    "description": "minimum string length"
                },
                "maxLength": {
                    "type": "number",
                    "description": "maximum string length"
                },
                "pattern": {
                    "type": "string",
                    "description": "regex pattern the value must match"
                },
                "min": {
                    "type": "number",
                    "description": "minimum value for number fields"
                },
                "max": {
                    "type": "number",
                    "description": "maximum value for number fields"
                },
                "in": {
                    "type": "array",
                    "description": "array of allowed values"
                },
                "maxFileSize": {
                    "type": "string",
                    "description": "maximum decoded file size for file and file[] fields (e.g. '500KB')"
                },
                "accept": {
                    "type": "array",
                    "description": "allowed MIME types for file and file[] fields; supports wildcards like 'image/*'",
                    "items": {
                        "type": "string"
                    }
                }
            }
        },
        "readonly": {
            "description": "field-level readonly — boolean or JS eval expression",
            "oneOf": [
                { "type": "boolean" },
                {
                    "type": "object",
                    "additionalProperties": false,
                    "properties": {
                        "eval": { "type": "string", "description": "JS expression that returns boolean" }
                    },
                    "required": ["eval"]
                }
            ]
        },
        "hidden": {
            "description": "field-level hidden — boolean or JS eval expression",
            "oneOf": [
                { "type": "boolean" },
                {
                    "type": "object",
                    "additionalProperties": false,
                    "properties": {
                        "eval": { "type": "string", "description": "JS expression that returns boolean" }
                    },
                    "required": ["eval"]
                }
            ]
        },
        "strictFields": {
            "type": "boolean",
            "description": "reject unknown sub-fields not defined in subFields"
        },
        "meta": {
            "$ref": "fieldMeta.json"
        }
    },
    "required": [
        "name",
        "type"
    ]
}