/*
 * This file is part of HoloAPI.
 *
 * HoloAPI is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HoloAPI is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HoloAPI.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.dsh105.holoapi.script;

import javax.script.ScriptEngine;
import javax.script.ScriptException;

public abstract class Script<T> {

    protected String name;
    protected String code;

    public Script(String name, String code) {
        this.name = name;
        this.code = code;
    }

    public String getName() {
        return this.name;
    }

    public String getCode() {
        return this.code;
    }

    public abstract String getSignature();

    public abstract T eval(ScriptEngine engine, Object... args) throws ScriptException;

    protected void compile(ScriptEngine engine) throws ScriptException {
        if (engine.get(this.name) == null) {
            engine.eval("var " + this.name + " = function(hologram, player) {\n" + this.code + "\n}");
        }
    }

    public void cleanup(ScriptEngine engine) {
        engine.put(this.name, null);
    }

  /**  public void saveToFile(File file) throws FileNotFoundException {
        if (file.isDirectory() || !file.exists())
            throw new IllegalArgumentException("File is a directory or doesn't exist!");

        if (file.getName().endsWith(ScriptLoader.SCRIPT_EXTENSION))
            throw new IllegalArgumentException("File doesn't have the " + ScriptLoader.SCRIPT_EXTENSION + " extension!");

        PrintWriter writer = new PrintWriter(file);
        writer.print(this.code);
        writer.flush();
        writer.close();
    }

    public static Script readFromFile(File file) throws IOException {
        byte[] encoded = Files.readAllBytes(file.toPath());
        String code = new String(encoded, StandardCharsets.UTF_8);
        return new Script(file.getName(), code);
    } */
}