#!/usr/bin/env node
// Local patch: self-host attribution box (applied at image build time).
//
// The AdventureLandOnlyUse license requires a crawlable link back to
// https://adventure.land, and the original project should not appear to
// support a self-hosted instance. The upstream login/character-selection help
// box (htmls/contents/account_help.html) shows "Email, for anything:
// hello@adventure.land" from a phrase. This patch points that component at
// pages.attribution.self-hosted instead, which ships as
// docker/attribution/{en.js,de.json}; all other languages fall back to English.
//
// The script fails loudly when the upstream phrase is gone or the shipped
// catalog is incomplete, so a code update cannot silently drop the attribution.

const fs = require("node:fs");
const path = require("node:path");

const template = process.argv[2] || "/app/htmls/contents/account_help.html";
const app = path.resolve(path.dirname(template), "..", "..");

const upstream_id = "pages.contents.selection_features.email-for-anything-hello-adventure-land";
const phrase_id = "pages.attribution.self-hosted";
const license_url = "https://adventure.land";

function fail(message) {
	console.error("patch-attribution: " + message);
	process.exit(1);
}

const catalogs = [
	["en", require(path.join(app, "languages", "en", "attribution.js"))],
	["de", JSON.parse(fs.readFileSync(path.join(app, "languages", "de", "attribution.json"), "utf8"))],
];

for (const [language, catalog] of catalogs) {
	const text = catalog[phrase_id];
	if (typeof text !== "string") fail("missing " + phrase_id + " in languages/" + language + "/attribution");
	if (!text.includes('href="' + license_url + '"')) {
		fail("languages/" + language + "/attribution does not link to " + license_url);
	}
}

const source = fs.readFileSync(template, "utf8");

if (source.includes('"' + phrase_id + '"')) {
	console.log("patch-attribution: already applied");
	process.exit(0);
}

if (source.split(upstream_id).length !== 2) {
	fail("expected exactly one occurrence of " + upstream_id + " in " + template);
}

fs.writeFileSync(template, source.replace(upstream_id, phrase_id));
console.log("patch-attribution: applied to " + template);