{
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "$id": "https://tetra.mickelus.se/schemas/1.20/replacements/replacement.schema.json",
    "title": "Replacement definition",
    "description": "Tetra items are typically not crafted as the player would place a piece of equipment (vanilla or modded) in the workbench and modify it, turning it into a tetra item. Replacement definitions determine which type item and which modules an item would initially have when converted into a modular item.",
    "examples": [
        {
            "predicate": { "item": "minecraft:wooden_axe" },
            "item": "tetra:modular_double",
            "modules": {
                "double/head_left": [ "double/basic_axe_left", "basic_axe/oak" ],
                "double/head_right": [ "double/butt_right", "butt/oak" ],
                "double/handle": [ "double/basic_handle", "basic_handle/stick" ]
            },
            "improvements": {
                "double/head_left:hone/efficiency": 1
            }
        }
    ],
    "type": "object",
    "properties": {
        "predicate": {
            "type": "object",
            "description": "An item predicate matching the item that is to be turned into a modular item. See item predicate: (https://minecraft.wiki/w/Predicate)."
        },
        "item": {
            "$ref": "../resource_location.schema.json",
            "$comment": "A reference to the modular item (or the essentially the type of modular item) that the item will be turned into."
        },
        "archetype": {
            "$ref": "../resource_location.schema.json",
            "$comment": "Can be used instead of item, references an archetype instead of a modular item. (Archetypes are defined through data, items are registered programmatically)"
        },
        "modules": {
            "type": "object",
            "patternProperties": {
                ".*": {
                    "type": "array",
                    "prefixItems": [
                        { "type": "string" },
                        { "type": "string" }
                    ]
                }
            },
            "description": "The modules that the resulting item should be composed of. The key is a slot on the item, the first item in the array is a module reference and the second item is the module variant."
        },
        "improvements": {
            "type": "object",
            "patternProperties": {
                ".*": { "type": "string" }
            },
            "description": "The improvements that the resulting item should have. The key is split in two parts, \"slot:improvement_key\", and the value is the improvement level."
        }
    },
    "required": [ "type", "predicate", "modules" ]
}