import Moveable from "lit-moveable";
import { LitElement, html } from "lit";
import { customElement, property } from "lit/decorators.js";
import { ref, createRef } from "lit/directives/ref.js";

@customElement("lit-app")
export default class App extends LitElement {
    resizable: any = "$preview_resizable";
    keepRatio: any = "$preview_keepRatio";
    throttleResize: any = "$preview_throttleResize";
    renderDirections: any = "$preview_renderDirections";
    minWidth: any = "$preview_minWidth";
    minHeight: any = "$preview_minHeight";
    maxWidth: any = "$preview_maxWidth";
    maxHeight: any = "$preview_maxHeight";
    widthInputRef: Ref<HTMLInputElement> = createRef(null);
    heightInputRef: Ref<HTMLInputElement> = createRef(null);
    moveableRef: Ref<Moveable> = createRef(null);
    onInput: any = (e: any) => {
        const ev = (e.nativeEvent || e) as InputEvent;
        const horizontal = JSON.parse((ev.target as HTMLElement).getAttribute("data-horizontal")!);
        if (typeof ev.data === "undefined") {
            this.moveableRef.value!.request("resizable", {
                offsetWidth: parseFloat(this.widthInputRef.value!.value),
                offsetHeight: parseFloat(this.heightInputRef.value!.value),
                horizontal
            }, true);
        }
    };
    onKeyUp: any = (e: any) => {
        const ev = (e.nativeEvent || e) as InputEvent;
        const horizontal = JSON.parse((ev.target as HTMLElement).getAttribute("data-horizontal")!);
        e.stopPropagation();
        if (e.keyCode === 13) {
            this.moveableRef.value!.request("resizable", {
                offsetWidth: parseFloat(this.widthInputRef.value!.value),
                offsetHeight: parseFloat(this.heightInputRef.value!.value),
                horizontal
            }, true);
        }
    };
    render() {
        return html `<div class="root">
    <div>
        width:
        <input
            ${ref(this.widthInputRef)}
            type="number"
            defaultValue="280"
            @input=${this.onInput}
            @keyUp=${this.onKeyUp}
            data-horizontal="true"
        ></input>
        &nbsp;
                    height:
        <input
            ${ref(this.heightInputRef)}
            type="number"
            defaultValue="230"
            @input=${this.onInput}
            @keyUp=${this.onKeyUp}
            data-horizontal="false"
        ></input>
    </div>
    <div class="container">
        <div class="target target1">Target1</div>
        <div class="target target2">Target2</div>
        <div class="target target3">Target3</div>
        <lit-moveable
            ${ref(this.moveableRef)}
            .target=${".target"}
            .litDraggable=${true}
            .resizable=${this.resizable}
            .keepRatio=${this.keepRatio}
            .throttleResize=${this.throttleResize}
            .renderDirections=${this.renderDirections}
            @litResizeGroupStart=${this.onResizeGroupStart}
            @litResizeGroup=${this.onResizeGroup}
            @litResizeGroupEnd=${this.onResizeGroupEnd}
            @litDragGroup=${this.onDragGroup}
        ></lit-moveable>
    </div>
</div>`;
    }
    onResizeGroupStart({ setMin, setMax }) {
        setMin([this.minWidth, this.minHeight]);
        setMax([this.maxWidth, this.maxHeight]);
    }
    onResizeGroup({ events }) {
        events.forEach(ev => {
            ev.target.style.width = `${ev.boundingWidth}px`;
            ev.target.style.height = `${ev.boundingHeight}px`;
            ev.target.style.transform = `translate(${ev.drag.beforeTranslate[0]}px, ${ev.drag.beforeTranslate[1]}px)`;
        });
    }
    onResizeGroupEnd(e) {
        requestAnimationFrame(() => {
            const rect = e.moveable.getRect();
            this.widthInputRef.value!.value = `${rect.offsetWidth}`;
            this.heightInputRef.value!.value = `${rect.offsetHeight}`;
        });
    }
    onDragGroup({ events }) {
        events.forEach(ev => {
            ev.target.style.transform = ev.transform;
        });
    }
}