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path: root/static/js/controllers/replies_controller.js
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import { BaseController } from "./base_controller.js";

export class RepliesController extends BaseController {
    constructor() {
	super();
    }

    async init() {
	this.comment_id = 0;
	this.reply_form = await this.getReplyForm();
	this.listenButtons("replies-button", this.showReplies.bind(this));
	this.listenButtons("new-reply-button", this.showReplyForm.bind(this));
    }

    async submit(event) {
	await super.submit(event, `${this.comments_server_host}/api/comments/${this.comment_id}/replies`);
    }

    listenButtons(class_name, func) {
	const buttons = document.getElementsByClassName(class_name);

	if(buttons) {
	    for(let button of buttons)
		button.addEventListener("click", func);
	}
    }

    showReplyForm(event) {
	const replies_section = event.target.parentElement.parentElement.childNodes[3];
	const form = replies_section.querySelector(".reply-form");

	if(form == null) {
	    replies_section.appendChild(this.reply_form);
	    this.setCommentId(replies_section);
	    this.reply_form.addEventListener("submit", this.submit.bind(this));
	} else
	    form.remove();
    }

    showReplies(event) {
	/* The div to contain the comment's replies. From the element id
	   we can get the comment's id. */
	this.setCommentId(event.target);
	console.log("You're in showReplies()");
    }

    setCommentId(parent) {
	const replies_section = parent.parentElement.parentElement.childNodes[3];

	this.comment_id = /\d/.exec(replies_section.id)[0];
    }

    async getReplyForm() {
	var form = await this.get("/api/replies/new");

	return form.getElementsByClassName("reply-form")[0];
    }
}