package arm;

//Core
import haxe.Json;
import zui.Canvas.ElementType;
import zui.Canvas.TCanvas;
import zui.Canvas.TElement;
import armory.trait.internal.CanvasScript;
import armory.system.Event;
import iron.data.Data;
//Ours
import libs.signal.Signal1;

typedef TConsoleData = {
    var greeting:String;
    var commands: Array<TCommand>;
}
typedef TCommand = {
    var command:String;
    var desc:String;
    var event:String;
}

class ConsoleController extends iron.Trait {
    var consoleCanvas = null;
    var canvas:TCanvas = null;
    var commandJson:String = null;

    public var signal = new Signal1<String>();

    @prop
    var commandFile:String = null;

    @prop
    var terminalDir:String = "NB:\\Drone\\Terminal> "; // NOTE: why don't move this to JSON, like greetings?

    public function new() {
        super();

        notifyOnInit(function() {
            if (commandFile != null) {
                Data.getBlob(commandFile, function(b:kha.Blob) {
                    commandJson = b.toString();
                });
            }
            consoleCanvas = new CanvasScript("Console");
            canvas = @:privateAccess consoleCanvas.canvas;

            var eventName = "consoleBtnFor" + object.name; // Unique event

            for (el in canvas.elements) {
                if (el.name == "Button") {
                    el.event = eventName;
                    break;
                }
            }

            Event.add(eventName, consoleBtnPress);
            var consoleDataJson:TConsoleData = Json.parse(commandJson);
            var root = consoleCanvas.getElement("Empty"); // NOTE: maybe have some nice names for elements?
            addLine(canvas, root.x, root.y + numbersOfLines, root.width, root.height, consoleDataJson.greeting);
        });
    }

    var numbersOfLines:Int = 0; // NOTE: it think this something else, like `lineTopMargin`

    public function consoleBtnPress() {
        if (commandJson == null || canvas == null) {
            return;
        }

        var consoleDataJson:TConsoleData = Json.parse(commandJson); // NOTE: this could be done one time, on init

        var commandInput = consoleCanvas.getHandle("Input").text; // NOTE: this could be done one time, on init
        var root = consoleCanvas.getElement("Empty"); // NOTE: this could be done one time, on init

        numbersOfLines += root.height;

        var commandFound = false;

        for (commandItem in consoleDataJson.commands) { // NOTE: we dont need to loop, if command is "-help", pls change order and use else if :)
            if (commandItem.command == commandInput) {
                addLine(canvas, root.x, root.y + numbersOfLines, root.width, root.height, terminalDir+" "+commandInput);
                commandFound = true;
                signal.dispatch(commandItem.event);
                break;
            }
        }
        if (commandInput == "-help"){
            addLine(canvas, root.x, root.y + numbersOfLines, root.width, root.height, terminalDir+" "+commandInput);
            for (commandItem in consoleDataJson.commands){
                numbersOfLines += root.height;
                addLine(canvas, root.x, root.y + numbersOfLines, root.width, root.height, terminalDir+" command: '" + commandItem.command+"'");
                numbersOfLines += root.height;
                addLine(canvas, root.x, root.y + numbersOfLines, root.width, root.height, terminalDir+" command description: " + commandItem.desc); // QUESTION: maybe have this in one line? Doesn't command+desc blend together?
                numbersOfLines += root.height;
                commandFound = true;
            }
        }

        if (!commandFound) {
            addLine(canvas, root.x, root.y + numbersOfLines, root.width, root.height, terminalDir+" "+commandInput);
            numbersOfLines += root.height;
            addLine(canvas, root.x, root.y + numbersOfLines, root.width, root.height, "'"+commandInput+"'"+" is not recognized as an internal or external command");
            numbersOfLines += root.height;
            addLine(canvas, root.x, root.y + numbersOfLines, root.width, root.height, "Stupid boi please enter '-help', to check all possible command"); // NOTE: cmoooon :D
            numbersOfLines += root.height;
        }
    }

    // NOTE: instead of passing root this and that, pass root it self + numbersOfLines, and calc inside fn, this way the function will look much shorter and nicer
    public function addLine(cCanvas:TCanvas, rootx:Float, rooty:Float, rootw:Int, rooth:Int, text:String) {
        var line:TElement = {
            id: 10002,
            type: ElementType.Text,
            name: "Terminal",
            text: text,
            x: rootx,
            y: rooty,
            width: rootw,
            height: rooth,
            color: -1
        }
        cCanvas.elements.push(line);
    }
}