import fxconv
import json


def convert(input_name, output, params, target):
    if params["custom-type"] == "map":
        convert_map(input_name, output, params, target)
        return 0
    else:
        return 1


def convert_map(input_name, output, params, target):
    with open(input_name, "r") as file:
        json_data = json.load(file)

    data = fxconv.ObjectData()
    data += fxconv.u32(json_data["width"]) + fxconv.u32(json_data["height"]) + fxconv.u32(len(json_data["layers"]))

    for layer in json_data["layers"]:
        layer_data = bytes()

        for tile in layer["data"]:
            layer_data += fxconv.u16(tile)
        
        data += fxconv.ref(layer_data)

    fxconv.elf(data, output, "_" + params["name"], **target)