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import Base from "./template/Base.js"
import createError from "http-errors"
import t, { c } from "./template/vdom.js"
import h from "./template/header.js"
import { STATUS_CODES } from "node:http"
import app from "./app.js"
import isDevel from "./utils/isDevel.js"
import isDefined from "./utils/isDefined.js"
import type express from "express"
import type { HttpError } from "http-errors"
interface ErrObj {
code: number | string,
msg: string,
debug?: string | undefined
}
async function errorTemplate(data: ErrObj): Promise<{ html: string; text: string; obj: ErrObj }> {
const { code, msg, debug } = data
const arg = {
...data,
title: msg,
content() {
return [
c(h, { level: 1, style: "color: darkred" }, `ERROR: ${code}`),
t("p", {}, msg),
isDefined(debug) && isDevel(app) ? t("p", {}, t("pre", {}, debug)) : ""
]
}
}
return {
html: await Base(arg).render(),
text: `${code} - ${msg}
${debug || ""}`,
obj: data
}
}
async function errRender(res: express.Response, opt: ErrObj) {
const msg = await errorTemplate(opt)
res.format({
html: () => {
res.send(msg.html)
},
json: () => {
res.send(msg.obj)
},
default: () => {
res.type("txt").send(msg.text)
}
})
}
export const errHandler = async function (
err: HttpError,
_req: express.Request,
res: express.Response,
_next: express.NextFunction
) {
res.status(err.status || 500)
await errRender(res, {
code: res.statusCode,
msg: res.statusMessage || STATUS_CODES[res.statusCode] || "Unknown",
debug: err.stack
})
console.error(err + (err.stack ?? ""))
}
export function notFound(_req: express.Request,
_res: express.Response,
next: express.NextFunction
) {
next(createError(404))
}
export async function offline(_req: express.Request,
res: express.Response) {
await errRender(res, {
code: "Offline",
msg: "Can not reach the website. Check your Network",
})
}
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