mount.ts
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mount.ts
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	import Router from "@koa/router";
	import Koa, { Context } from "koa";
	import { Middlewares } from "sealious";
	import { Mountable } from "./page/mountable";

	async function handleHtmlPromise(ctx: Context, next: Koa.Next) {
	await next();
	if (ctx.body instanceof Promise) {
	// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
	ctx.body = await ctx.body;
	}
	ctx.set("content-type", "text/html;charset=utf-8");
	}

	export function mount(router: Router, url: string, mountable: Mountable): void {
	router.use(
	url,
	Middlewares.extractContext(),
	Middlewares.parseBody(),
	handleHtmlPromise
	);
	mountable.init();
	mountable.mount(router, url);
	// to automatically add trailing slashes:
	router.get(url.slice(0, -1), (ctx) => {
	ctx.redirect(ctx.originalUrl + "/");
	});
	router.use(url, (ctx) =>
	ctx.set("content-type", "text/html;charset=utf-8")
	);
	}