import { createElement } from "../lib/skeleton/index.js";
import rxjs from "../lib/rx.js";

class Loader extends window.HTMLElement {
    constructor() {
        super();
        this.timeout = window.setTimeout(() => {
            this.innerHTML = this.render();
        }, parseInt(this.getAttribute("delay")) || 0);
    }

    disconnectedCallback() {
        window.clearTimeout(this.timeout);
    }

    render() {
        return `
<div class="component_loader">
    <svg width="120px" height="120px" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="xMidYMid">
        <rect x="0" y="0" width="100" height="100" fill="none"></rect>
        <circle cx="50" cy="50" r="40" stroke="rgba(100%,100%,100%,0.679)" fill="none" stroke-width="10" stroke-linecap="round"></circle>
        <circle cx="50" cy="50" r="40" stroke="#6f6f6f" fill="none" stroke-width="6" stroke-linecap="round">
            <animate attributeName="stroke-dashoffset" dur="2s" repeatCount="indefinite" from="0" to="502"></animate>
            <animate attributeName="stroke-dasharray" dur="2s" repeatCount="indefinite" values="150.6 100.4;1 250;150.6 100.4"></animate>
        </circle>
    </svg>
    <style>
    .component_loader{
        text-align: center;
        margin: 50px auto 0 auto;
        position: fixed;
        left: 0;
        right: 0;
        top: calc(50% - 200px);
    }
    </style>
</div>`;
    }
}

window.customElements.define("component-loader", Loader);

export default createElement(`<component-loader></component-loader>`);
export function toggle($node, show = false) {
    if (show === true) return rxjs.tap(() => $node.appendChild(createElement(`<component-loader></component-loader>`)));
    else return rxjs.tap(() => $node.querySelector("component-loader")?.remove());
}