{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "title": "JSON Schema WMBasic field configuration",
    "description": "WMBasic field linter",
    "type": "object",
    "additionalProperties": false,
    "properties": {
        "name": {
            "type": "string",
            "description": "name of field",
            "pattern": "^[0-9a-zA-Z_]+$"
        },
        "type": {
            "enum": [
                "string",
                "string[]",
                "number",
                "number[]",
                "boolean",
                "object",
                "object[]",
                "file",
                "any"
            ]
        },
        "index": {
            "type": "array",
            "items": {
                "enum": ["single", "unique", "text"]
            }
        },
        "subFields": {
            "type": "array",
            "description": "sub fields of object",
            "items": {
                "oneOf": [
                    {
                        "$comment": "for include tag",
                        "type": "string"
                    },
                    {
                        "$ref": "#"
                    }
                ]
            }
        },
        "meta": {
            "type": "object",
            "description": "meta object of field",
            "properties": {
                "label": {
                    "$ref": "#/definitions/i18nString"
                },
                "helperText": {
                    "$ref": "#/definitions/i18nString"
                },
                "widget": {
                    "description": "ui widget",
                    "enum": [
                        "richtext",
                        "richText",
                        "html",
                        "checkbox",
                        "select",
                        "selectArray",
                        "date",
                        "file",
                        "image"
                    ]
                },
                "choices": {
                    "type": "array",
                    "description": "choices to select from",
                    "items": {
                        "type": "object",
                        "properties": {
                            "name": {
                                "description": "name is human readable value",
                                "$ref": "#/definitions/i18nString"
                            },
                            "chipStyle": {
                                "$ref": "https://raw.githubusercontent.com/rcorp/css-schema/master/schema.json"
                            }
                        },
                        "oneOf": [
                            {
                                "properties": {
                                    "id": {
                                        "type": "number"
                                    }
                                }
                            },
                            {
                                "properties": {
                                    "id": {
                                        "type": "string"
                                    }
                                }
                            }
                        ],
                        "required": ["id", "name"]
                    }
                },
                "valueMap": {
                    "type": "object",
                    "description": "map values to icons",
                    "patternProperties": {
                        ".*": {
                            "oneOf": [
                                {
                                    "type": "string"
                                },
                                {
                                    "type": "object",
                                    "properties": {
                                        "muiIcon": {
                                            "type": "string"
                                        },
                                        "style": {
                                            "$ref": "https://raw.githubusercontent.com/rcorp/css-schema/master/schema.json"
                                        }
                                    }
                                }
                            ]
                        }
                    }
                }
            }
        }
    },
    "required": ["name", "type"],
    "definitions": {
        "i18nString": {
            "oneOf": [
                {
                    "type": "object",
                    "patternProperties": {
                        "^[a-z]$": {
                            "type": "string"
                        }
                    }
                },
                {
                    "type": "string"
                }
            ]
        },
        "evalExpressions": {
            "oneOf": [
                {
                    "type": "object",
                    "additionalProperties": true,
                    "properties": {
                        "twig": {
                            "type": "string",
                            "description": "twig template"
                        },
                        "projection": {
                            "type": "string",
                            "description": "query projection to use"
                        }
                    },
                    "required": ["twig"]
                },
                {
                    "type": "object",
                    "additionalProperties": true,
                    "properties": {
                        "eval": {
                            "type": "string",
                            "description": "javascript code"
                        },
                        "projection": {
                            "type": "string",
                            "description": "query projection to use"
                        }
                    },
                    "required": ["eval"]
                }
            ]
        },
        "fieldSource": {
            "oneOf": [
                {
                    "$ref": "#/definitions/fieldPath"
                },
                {
                    "type": "object",
                    "properties": {
                        "source": {
                            "$ref": "#/definitions/fieldPath"
                        }
                    }
                }
            ]
        },
        "fieldPath": {
            "type": "string",
            "description": "field, sub fields separated with dot (.)",
            "pattern": "^[a-zA-Z0-9_]+(\\.[a-zA-Z0-9_]+)*$"
        }
    }
}