{
    "$id": "https://gros.liacs.nl/schema/metadata/locale.json",
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "title": "Localization data",
    "$ref": "#/$defs/locale",
    "$defs": {
        "locale": {
            "title": "Locales",
            "type": "object",
            "patternProperties": {
                "^[a-zA-Z]{2,3}(-.*)?$": {
                    "type": "object",
                    "description": "Localization items for a specific language, with keys and localized replacement values. Valid languages use two-letter ISO 639-1 language codes plus optional BCP 47 subtags, so only a subset of languages is recognized.",
                    "patternProperties": {
                        ".*": {"type": "string"}
                    }
                }
            }
        },
        "descriptions": {
            "description": "Feature descriptions.",
            "$ref": "#/$defs/locale"
        },
        "long_descriptions": {
            "description": "Long feature descriptions.",
            "$ref": "#/$defs/locale"
        },
        "predictor": {
            "description": "Short feature descriptions when used as factors for a prediction of another feature, in order to differentiate prediction strategies.",
            "$ref": "#/$defs/locale"
        },
        "tags": {
            "description": "Feature tag names.",
            "$ref": "#/$defs/locale"
        },
        "units": {
            "description": "Feature unit format templates.",
            "$ref": "#/$defs/locale"
        },
        "short_units": {
            "description": "Feature shorthand unit format templates.",
            "$ref": "#/$defs/locale"
        },
        "sources": {
            "description": "Source names, icons and metadata.",
            "allOf": [
                {"$ref": "#/$defs/locale"}
            ],
            "type": "object",
            "properties": {
                "icon": {
                    "type": "object",
                    "patternProperties": {
                        ".*": {
                            "type": "array",
                            "minItems": 2,
                            "items": {"type": "string"},
                            "description": "Portions of a FontAwesome icon class that indicates a source system."
                        }
                    }
                },
                "feature": {
                    "type": "object",
                    "patternProperties": {
                        ".*": {
                            "type": "array",
                            "items": {"type": "string"},
                            "description": "List of features that originate from the source system."
                        }
                    }
                }
            }
        }
    }
}