egordorichev/LastTry

package org.egordorichev.lasttry.crafting;

import com.badlogic.gdx.utils.JsonValue;

public class Recipe {
    /**
     * Required crafting stations
     */
    private String[] stations;
    /**
     * Required materials
     */
    private Holder[] materials;
    /**
     * Result of crafting
     */
    private Holder result;

    public static class Holder {
        public String item;
        public short count;
    }

    public Recipe() {

    }

    /**
     * Loads recipe from json
     *
     * @param root Json root
     * @throws Exception Exception containing parse error
     */
    public static Recipe load(JsonValue root) throws Exception {
        Recipe recipe = new Recipe();

        if (root.has("stations")) {
            JsonValue stations = root.get("stations");
            recipe.stations = new String[stations.size];

            for (int i = 0; i < stations.size; i++) {
                recipe.stations[i] = stations.getString(i);
            }
        } else {
            recipe.stations = new String[0];
        }

        if (!root.has("materials") || !root.has("result")) {
            throw new Exception("Recipe must have materials and result fields");
        }

        JsonValue materials = root.get("materials");
        recipe.materials = new Holder[materials.size];

        for (int i = 0; i < materials.size; i++) {
            recipe.materials[i] = new Holder();
            recipe.materials[i].count = materials.get(i).getShort("count", (short) 1);
            recipe.materials[i].item = materials.get(i).getString("id", "lt:dirt"); // ;D
        }

        JsonValue result = root.get("result");

        recipe.result = new Holder();
        recipe.result.count = result.getShort("count", (short) 1);
        recipe.result.item = result.getString("id", "lt:dirt"); // ;D

        return recipe;
    }

    /**
     * @return Recipe result
     */
    public Holder getResult() {
        return this.result;
    }

    /**
     * @return Recipe required materials
     */
    public Holder[] getMaterials() {
        return this.materials;
    }

    /**
     * @return Recipe required stations
     */
    public String[] getStations() {
        return this.stations;
    }
}