import { HTMLWidget, Widget } from "@hpcc-js/common";

export class Popup extends HTMLWidget {
    _surfaceButtons;
    _originalPosition;

    constructor() {
        super();
        this._tag = "div";
        this._surfaceButtons = [];
    }

    updateState(visible) {
        visible = visible || !this.popupState();
        this.popupState(visible).render();
    }

    enter(domNode, element) {
        super.enter(domNode, element);
        this.widget()
            .target(domNode)
            ;
        this._originalPosition = this.position();
    }

    update(domNode, element) {
        super.update(domNode, element);
        element
            .style("visibility", this.popupState() ? null : "hidden")
            .style("opacity", this.popupState() ? null : 0)
            .style("width", this.shrinkWrap() ? this.widget().width() + "px" : this._size.width + "px")
            .style("height", this.shrinkWrap() ? this.widget().height() + "px" : this._size.height + "px")
            ;
        if (this.widget().size().height === 0) {
            this.widget().resize(this.size());
        }
    }

    postUpdate(domNode, element) {
        let left;
        let top;
        switch (this.centerPopup()) {
            case "container":
                if (this._placeholderElement) {
                    left = parseInt(this._placeholderElement.style("width")) / 2 - this.widget().width() / 2;
                    top = parseInt(this._placeholderElement.style("height")) / 2 - this.widget().height() / 2;
                }
                this.position("absolute");
                break;

            case "window":
                left = window.innerWidth / 2 - this.widget().width() / 2;
                top = window.innerHeight / 2 - this.widget().height() / 2;
                this.position("fixed");
                break;

            default:
                left = 0;
                top = 0;
                this.position(this._originalPosition);
                break;
        }

        this.pos({ x: left, y: top });

        super.postUpdate(domNode, element);

        element
            .style("position", this.position())
            .style("left", this.left() + "px")
            .style("right", this.right() + "px")
            .style("top", this.top() + "px")
            .style("bottom", this.bottom() + "px")
            ;
    }

    exit(domNode, element) {
        if (this.widget()) {
            this.widget().target(null);
        }
        super.exit(domNode, element);
    }

    click(obj) {
    }
}
Popup.prototype._class += " layout_Popup";

export interface Popup {
    popupState(): boolean;
    popupState(_: boolean): this;
    shrinkWrap(): boolean;
    shrinkWrap(_: boolean): this;
    centerPopup(): "none" | "container" | "window";
    centerPopup(_: "none" | "container" | "window"): this;
    top(): number;
    top(_: number): this;
    bottom(): number;
    bottom(_: number): this;
    left(): number;
    left(_: number): this;
    right(): number;
    right(_: number): this;
    position(): string;
    position(_: string): this;

    widget(): Widget;
    widget(_: Widget): this;
}

Popup.prototype.publish("popupState", false, "boolean", "State of the popup, visible (true) or hidden (false)", null, {});
Popup.prototype.publish("shrinkWrap", false, "boolean", "The popup parent container either shrinks to the size of its contents (true) or expands to fit thge popup's parentDiv (false)", null, {});
Popup.prototype.publish("centerPopup", "none", "set", "Center the widget in its container element (target) or in the window", ["none", "container", "window"], {});
Popup.prototype.publish("top", null, "number", "Top position property of popup", null, {});
Popup.prototype.publish("bottom", null, "number", "Bottom position property of popup", null, {});
Popup.prototype.publish("left", null, "number", "Left position property of popup", null, {});
Popup.prototype.publish("right", null, "number", "Right position property of popup", null, {});
Popup.prototype.publish("position", "relative", "set", "Value of the 'position' property", ["absolute", "relative", "fixed", "static", "initial", "inherit"], { tags: ["Private"] });

Popup.prototype.publish("widget", null, "widget", "Widget", null, { tags: ["Private"] });