import Command from './Command';

/**
 * 设置脚本值命令
 * @author dforrer / https://github.com/dforrer
 * Developed as part of a project at University of Applied Sciences and Arts Northwestern Switzerland (www.fhnw.ch)
 * @param object THREE.Object3D
 * @param script javascript object
 * @param attributeName string
 * @param newValue string, object
 * @param cursorPosition javascript object with format {line: 2, ch: 3}
 * @param scrollInfo javascript object with values {left, top, width, height, clientWidth, clientHeight}
 * @constructor
 */
function SetScriptValueCommand(object, script, attributeName, newValue, cursorPosition, scrollInfo) {
	Command.call(this);

	this.type = 'SetScriptValueCommand';
	this.name = '设置脚本.' + attributeName;
	this.updatable = true;

	this.object = object;
	this.script = script;

	this.attributeName = attributeName;
	this.oldValue = (script !== undefined) ? script[this.attributeName] : undefined;
	this.newValue = newValue;
	this.cursorPosition = cursorPosition;
	this.scrollInfo = scrollInfo;
};

SetScriptValueCommand.prototype = Object.create(Command.prototype);

Object.assign(SetScriptValueCommand.prototype, {
	constructor: SetScriptValueCommand,

	execute: function () {
		this.script[this.attributeName] = this.newValue;

		this.editor.app.call('scriptChanged', this);
		this.editor.app.call('refreshScriptEditor', this, this.object, this.script, this.cursorPosition, this.scrollInfo);
	},

	undo: function () {
		this.script[this.attributeName] = this.oldValue;

		this.editor.app.call('scriptChanged', this);
		this.editor.app.call('refreshScriptEditor', this, this.object, this.script, this.cursorPosition, this.scrollInfo);
	},

	update: function (cmd) {
		this.cursorPosition = cmd.cursorPosition;
		this.scrollInfo = cmd.scrollInfo;
		this.newValue = cmd.newValue;
	},

	toJSON: function () {
		var output = Command.prototype.toJSON.call(this);

		output.objectUuid = this.object.uuid;
		output.index = this.editor.scripts[this.object.uuid].indexOf(this.script);
		output.attributeName = this.attributeName;
		output.oldValue = this.oldValue;
		output.newValue = this.newValue;
		output.cursorPosition = this.cursorPosition;
		output.scrollInfo = this.scrollInfo;

		return output;
	},

	fromJSON: function (json) {
		Command.prototype.fromJSON.call(this, json);

		this.oldValue = json.oldValue;
		this.newValue = json.newValue;
		this.attributeName = json.attributeName;
		this.object = this.editor.objectByUuid(json.objectUuid);
		this.script = this.editor.scripts[json.objectUuid][json.index];
		this.cursorPosition = json.cursorPosition;
		this.scrollInfo = json.scrollInfo;
	}
});

export default SetScriptValueCommand;