package kernel.ui;

using tink.CoreApi;

import util.Color;
import kernel.ButtonType;
import util.Vec.Vec2;
import lib.TermWriteable;

class WindowContext implements TermWriteable {
    private final writer:VirtualTermWriter;

    public var clickSignal(default,null):Signal<{button: ButtonType, pos: Vec2<Int>}>;
    public var keySignal(default,null):Signal<{keyCode: Int, isHeld: Bool}>;
    public var keyUpSignal(default,null):Signal<Int>;
    public var mouseDragSignal(default,null):Signal<{button: ButtonType, pos: Vec2<Int>}>;
    public var mouseScrollSignal(default,null):Signal<{dir: Int,pos: Vec2<Int>}>;
    public var mouseUpSignal(default,null):Signal<{button: ButtonType,pos: Vec2<Int>}>;
    public var pasteSignal(default,null):Signal<String> ;

    @:allow(kernel.ui.WindowManager) private final clickTrigger:SignalTrigger<{button: ButtonType, pos: Vec2<Int>}>;
    @:allow(kernel.ui.WindowManager) private final keyTrigger:SignalTrigger<{keyCode: Int, isHeld: Bool}>;
    @:allow(kernel.ui.WindowManager) private final keyUpTrigger:SignalTrigger<Int>;
    @:allow(kernel.ui.WindowManager) private final mouseDragTrigger:SignalTrigger<{button: ButtonType, pos: Vec2<Int>}>;
    @:allow(kernel.ui.WindowManager) private final mouseScrollTrigger:SignalTrigger<{dir: Int,pos: Vec2<Int>}>;
    @:allow(kernel.ui.WindowManager) private final mouseUpTrigger:SignalTrigger<{button: ButtonType,pos: Vec2<Int>}>;
    @:allow(kernel.ui.WindowManager) private final pasteTrigger:SignalTrigger<String>;


    public function new(writer: VirtualTermWriter) {
        this.writer = writer;
        this.onResize = writer.onResize;

        this.clickTrigger = Signal.trigger();
        this.keyTrigger = Signal.trigger();
        this.keyUpTrigger = Signal.trigger();
        this.mouseDragTrigger = Signal.trigger();
        this.mouseScrollTrigger = Signal.trigger();
        this.mouseUpTrigger = Signal.trigger();
        this.pasteTrigger = Signal.trigger();

        this.clickSignal = clickTrigger.asSignal();
        this.keySignal = keyTrigger.asSignal();
        this.keyUpSignal = keyUpTrigger.asSignal();
        this.mouseDragSignal = mouseDragTrigger.asSignal();
        this.mouseScrollSignal = mouseScrollTrigger.asSignal();
        this.mouseUpSignal = mouseUpTrigger.asSignal();
        this.pasteSignal = pasteTrigger.asSignal();

    }

    public var onResize(default, null):Signal<Vec2<Int>>;

    @:allow(kernel.ui)
    private function setTarget(target: TermWriteable) {
        writer.setTarget(target);
    }

    @:allow(kernel.ui)
    private function enable() {
        writer.enable();
    }

    @:allow(kernel.ui)
    private function disable() {
        writer.disable();
    }

    @:allow(kernel.ui)
    private function isEnabled() {
        return writer.isEnabled();
    }

	public function write(text:String) {
        writer.write(text);
    }

	public function scroll(y:Int) {
        writer.scroll(y);
    }

	public function getCursorPos():Vec2<Int> {
		return writer.getCursorPos();
	}

	public function setCursorPos(x:Int, y:Int) {
        writer.setCursorPos(x,y);
    }

	public function getCursorBlink():Bool {
		return writer.getCursorBlink();
	}

	public function setCursorBlink(blink:Bool) {
        writer.setCursorBlink(blink);
    }

	public function getSize():Vec2<Int> {
		return writer.getSize();
	}

	public function clear() {
        writer.clear();
    }

	public function clearLine() {
        writer.clearLine();
    }

	public function getTextColor():Color {
		return writer.getTextColor();
	}

	public function setTextColor(colour:Color) {
        writer.setTextColor(colour);
    }

	public function getBackgroundColor():Color {
		return writer.getBackgroundColor();
	}

	public function setBackgroundColor(color:Color) {
        writer.setBackgroundColor(color);
    }

	public function isColor():Bool {
		return writer.isColor();
	}
}