{
    "$schema": "https://json-schema.org/draft-07/schema",
    "title": "Meta Box",
    "type": "object",
    "description": "WordPress Custom Fields and Custom Meta Boxes Framework",
    "definitions": {
        "//": {
            "reference": "https://docs.metabox.io/creating-fields-with-code/",
            "fieldsReference": "https://docs.metabox.io/fields/"
        },
        "geo": {
            "description": "Enable Place Autocomplete for the address field. Default is false.",
            "oneOf": [
                {
                    "type": "boolean",
                    "description": "Enable Place Autocomplete for the address field. Default is false."
                },
                {
                    "type": "object",
                    "properties": {
                        "api_key": {
                            "type": "string",
                            "description": "Google Maps API key."
                        },
                        "types": {
                            "type": "array",
                            "description": "Types of places to search for.",
                            "items": {
                                "type": "string",
                                "enum": [
                                    "geocode",
                                    "address",
                                    "establishment",
                                    "(regions)",
                                    "(cities)"
                                ]
                            }
                        },
                        "componentRestrictions": {
                            "type": "object",
                            "properties": {
                                "country": {
                                    "type": "string"
                                },
                                "route": {
                                    "type": "string"
                                },
                                "locality": {
                                    "type": "string"
                                },
                                "administrativeArea": {
                                    "type": "string"
                                },
                                "postalCode": {
                                    "type": "string"
                                },
                                "place": {
                                    "type": "string"
                                },
                                "sublocality": {
                                    "type": "string"
                                },
                                "sublocalityLevel1": {
                                    "type": "string"
                                },
                                "sublocalityLevel2": {
                                    "type": "string"
                                },
                                "sublocalityLevel3": {
                                    "type": "string"
                                },
                                "sublocalityLevel4": {
                                    "type": "string"
                                },
                                "sublocalityLevel5": {
                                    "type": "string"
                                },
                                "subpremise": {
                                    "type": "string"
                                }
                            }
                        }
                    }
                }
            ]
        },
        "conditionalLogicStatements": {
            "oneOf": [
                {
                    "type": "string",
                    "description": "Simple condition, [name, operator, value]."
                },
                {
                    "type": "array",
                    "description": "Compound statements [[name1, operator1, value1], [name2, operator2,value2], ...] with AND relation",
                    "items": {
                        "oneOf": [
                            {
                                "type": "array",
                                "items": {
                                    "type": "string"
                                }
                            },
                            {
                                "type": "string"
                            }
                        ]
                    }
                },
                {
                    "type": "object",
                    "description": "Compound statements with selected relation",
                    "properties": {
                        "when": {
                            "type": "array",
                            "description": "Compound statements [[name1, operator1, value1], [name2, operator2,value2], ...] with and relation",
                            "items": {
                                "type": "array",
                                "items": {
                                    "type": "string"
                                }
                            }
                        },
                        "relation": {
                            "type": "string",
                            "enum": [
                                "and",
                                "or"
                            ]
                        }
                    }
                }
            ]
        },
        "visible": {
            "$ref": "#/definitions/conditionalLogicStatements"
        },
        "hidden": {
            "$ref": "#/definitions/conditionalLogicStatements"
        },
        "validation": {
            "type": "object",
            "properties": {
                "rules": {
                    "type": "object",
                    "description": "Validation rules. Key is the rule name, value is the rule value."
                },
                "messages": {
                    "type": "object",
                    "description": "Validation messages. Key is the rule name, value is the message."
                }
            }
        }
    },
    "properties": {
        "$schema": {
            "type": "string"
        },
        "id": {
            "type": "string",
            "description": "ID, must be unique. Optional. If it's absent, it will be generated from the title."
        },
        "title": {
            "type": "string",
            "description": "Title of the meta box. Required"
        },
        "type": {
            "type": "string",
            "enum": [
                "meta-box",
                "block"
            ]
        },
        "settings_page": {
            "type": "string",
            "description": "Settings page ID. Optional. If it's present, the meta box will be shown on the settings page."
        },
        "tabs": {
            "type": "object",
            "description": "ID - Title pairs of tabs. Optional. If it's present, the meta box will be shown in tabs.",
            "patternProperties": {
                "^.*$": {
                    "oneOf": [
                        {
                            "type": "string"
                        },
                        {
                            "type": "object",
                            "properties": {
                                "label": {
                                    "type": "string",
                                    "description": "Tab title"
                                },
                                "icon": {
                                    "type": "string",
                                    "description": "Tab icon, support dashicons (default), can be class name or URL for custom icon"
                                }
                            },
                            "required": [
                                "label"
                            ]
                        }
                    ]
                }
            }
        },
        "tab_style": {
            "type": "string",
            "enum": [
                "default",
                "box",
                "left"
            ]
        },
        "tab_default_active": {
            "type": "string"
        },
        "tab_remember": {
            "type": "boolean"
        },
        "geo": {
            "$ref": "#/definitions/geo"
        },
        "object_type": {
            "type": "string"
        },
        "post_types": {
            "oneOf": [
                {
                    "type": "string",
                    "default": "post"
                },
                {
                    "type": "array",
                    "items": {
                        "type": "string",
                        "default": "post"
                    }
                }
            ],
            "description": "Custom post types which the field group is for. It can be a string or an array of slugs. Must be lowercase (like the slug)"
        },
        "context": {
            "type": "string",
            "enum": [
                "normal",
                "advanced",
                "side",
                "form_top",
                "after_title",
                "after_editor",
                "before_permalink"
            ]
        },
        "style": {
            "type": "string",
            "enum": [
                "default",
                "seamless"
            ]
        },
        "closed": {
            "type": "boolean"
        },
        "priority": {
            "type": "string",
            "enum": [
                "high",
                "low"
            ]
        },
        "default_hidden": {
            "type": "boolean"
        },
        "autosave": {
            "type": "boolean"
        },
        "media_modal": {
            "type": "boolean"
        },
        "columns": {
            "type": "object",
            "description": "Columns settings if you want to show fields in columns.",
            "patternProperties": {
                "^.*$": {
                    "oneOf": [
                        {
                            "type": "integer",
                            "description": "Column size (1-12)."
                        },
                        {
                            "type": "object",
                            "properties": {
                                "size": {
                                    "type": "integer",
                                    "description": "Column size (1-12)."
                                },
                                "class": {
                                    "type": "string",
                                    "description": "Custom CSS class for the column"
                                }
                            }
                        }
                    ]
                }
            }
        },
        "storage_type": {
            "description": "Storage type of the meta box. Default is post_meta.",
            "type": "string",
            "enum": [
                "post_meta",
                "user_meta",
                "term_meta",
                "comment_meta",
                "settings_page",
                "custom_table"
            ]
        },
        "table": {
            "type": "string",
            "description": "Table name for custom table storage type."
        },
        "custom_table": {
            "type": "object",
            "properties": {
                "enable": {
                    "type": "boolean"
                },
                "name": {
                    "type": "string"
                },
                "prefix": {
                    "type": "boolean"
                },
                "create": {
                    "type": "boolean"
                }
            },
            "required": [
                "enable",
                "name",
                "prefix",
                "create"
            ]
        },
        "class": {
            "type": "string"
        },
        "settings": {
            "type": "object",
            "properties": {
                "text_domain": {
                    "type": "string"
                },
                "modified": {
                    "type": "number"
                },
                "function_name": {
                    "type": "string"
                },
                "status": {
                    "type": "string"
                }
            },
            "additionalProperties": true
        },
        "fields": {
            "type": "array",
            "description": "Fields in the meta box",
            "items": {
                "type": "object",
                "properties": {
                    "attributes": {
                        "type": "object",
                        "description": "Custom HTML5 attributes of the field"
                    },
                    "name": {
                        "type": "string"
                    },
                    "id": {
                        "type": "string"
                    },
                    "type": {
                        "type": "string",
                        "enum": [
                            "autocomplete",
                            "background",
                            "button_group",
                            "button",
                            "checkbox_list",
                            "checkbox",
                            "color",
                            "custom_html",
                            "date",
                            "datetime",
                            "divider",
                            "fieldset_text",
                            "file_advanced",
                            "file_input",
                            "file_upload",
                            "file",
                            "heading",
                            "hidden",
                            "icon",
                            "image_advanced",
                            "image_select",
                            "image_upload",
                            "image",
                            "key_value",
                            "map",
                            "number",
                            "oembed",
                            "osm",
                            "password",
                            "post",
                            "radio",
                            "range",
                            "select_advanced",
                            "select",
                            "sidebar",
                            "single_image",
                            "slider",
                            "switch",
                            "taxonomy_advanced",
                            "taxonomy",
                            "text_list",
                            "text",
                            "textarea",
                            "time",
                            "user",
                            "video",
                            "wysiwyg",
                            "group",
                            "signature"
                        ]
                    },
                    "options": {
                        "type": "object",
                        "description": "Options of the field. Required for some field types like select, radio, checkbox_list, etc."
                    },
                    "label_description": {
                        "type": "string"
                    },
                    "desc": {
                        "type": "string"
                    },
                    "std": {
                        "type": "string"
                    },
                    "placeholder": {
                        "oneOf": [
                            {
                                "type": "string",
                                "description": "Regular fields placeholder"
                            },
                            {
                                "type": "object",
                                "properties": {
                                    "key": {
                                        "type": "string"
                                    },
                                    "value": {
                                        "type": "string"
                                    }
                                },
                                "description": "Placeholder for key-value field"
                            }
                        ]
                    },
                    "size": {
                        "type": "number"
                    },
                    "required": {
                        "type": "boolean"
                    },
                    "disabled": {
                        "type": "boolean"
                    },
                    "readonly": {
                        "type": "boolean"
                    },
                    "prepend": {
                        "type": "string"
                    },
                    "append": {
                        "type": "string"
                    },
                    "datalist_choices": {
                        "type": "string"
                    },
                    "clone": {
                        "type": "boolean"
                    },
                    "sort_clone": {
                        "type": "boolean"
                    },
                    "clone_default": {
                        "type": "boolean"
                    },
                    "clone_as_multiple": {
                        "type": "boolean"
                    },
                    "clone_empty_start": {
                        "type": "boolean"
                    },
                    "multiple": {
                        "type": "boolean",
                        "description": "Allow multiple values. Default is false."
                    },
                    "min_clone": {
                        "type": "number"
                    },
                    "max_clone": {
                        "type": "number"
                    },
                    "add_button": {
                        "type": "string",
                        "description": "Text for the 'Add' button in cloneable fields."
                    },
                    "tooltip": {
                        "type": "object",
                        "properties": {
                            "enable": {
                                "type": "boolean"
                            },
                            "icon": {
                                "type": "string"
                            },
                            "position": {
                                "type": "string"
                            },
                            "content": {
                                "type": "string"
                            }
                        },
                        "required": [
                            "enable",
                            "icon",
                            "position",
                            "content"
                        ]
                    },
                    "hide_from_front": {
                        "type": "boolean",
                        "description": "Hide the field from the front end submission form."
                    },
                    "hide_from_rest": {
                        "type": "boolean",
                        "description": "Hide the field from REST API response."
                    },
                    "limit": {
                        "type": "integer"
                    },
                    "limit_type": {
                        "type": "string",
                        "enum": [
                            "character",
                            "word"
                        ]
                    },
                    "before": {
                        "type": "string"
                    },
                    "after": {
                        "type": "string"
                    },
                    "class": {
                        "type": "string"
                    },
                    "sanitize_callback": {
                        "type": "string"
                    },
                    "save_field": {
                        "type": "boolean",
                        "default": true
                    },
                    "visible": {
                        "$ref": "#/definitions/conditionalLogicStatements"
                    },
                    "hidden": {
                        "$ref": "#/definitions/conditionalLogicStatements"
                    },
                    "tab": {
                        "type": "string",
                        "description": "Tab ID to show the field in."
                    },
                    "columns": {
                        "type": "integer",
                        "description": "Column size (1-12)."
                    },
                    "column": {
                        "type": "string",
                        "description": "Match the field with a column in the columns settings."
                    }
                },
                "allOf": [
                    {
                        "if": {
                            "properties": {
                                "type": {
                                    "const": "group"
                                }
                            }
                        },
                        "then": {
                            "required": [
                                "fields"
                            ]
                        }
                    },
                    {
                        "if": {
                            "properties": {
                                "type": {
                                    "enum": [
                                        "select",
                                        "select_advanced",
                                        "radio",
                                        "checkbox_list",
                                        "image_select"
                                    ]
                                }
                            }
                        },
                        "then": {
                            "required": [
                                "options"
                            ]
                        }
                    }
                ]
            },
            "additionalProperties": true
        },
        "modified": {
            "type": "number"
        },
        "revision": {
            "type": "boolean"
        },
        "visible": {
            "$ref": "#/definitions/conditionalLogicStatements"
        },
        "hidden": {
            "$ref": "#/definitions/conditionalLogicStatements"
        },
        "validation": {
            "$ref": "#/definitions/validation"
        },
        "additionalProperties": true
    },
    "required": [
        "id",
        "title",
        "fields"
    ]
}