Improve MineGeo interface and functionality

shared/i18n.ts

@@ -0,0 +1,75 @@
+import russian from "./locales/ru.json";
+
+export type Locale = "en" | "ru";
+export type LanguagePreference = Locale | "auto";
+export const languageCookie = "minegeo-language";
+export const localeTag = (locale: Locale) =>
+  locale === "ru" ? "ru-RU" : "en-GB";
+
+export function detectLocale(acceptLanguage: string | null): Locale {
+  const languages = (acceptLanguage ?? "")
+    .split(",")
+    .map((entry, index) => {
+      const [tag, ...parameters] = entry.trim().toLowerCase().split(";");
+      const quality = parameters.find((parameter) =>
+        parameter.trim().startsWith("q="),
+      );
+      return {
+        tag: tag.split("-")[0],
+        weight: quality ? Number(quality.trim().slice(2)) : 1,
+        index,
+      };
+    })
+    .filter(
+      ({ weight }) => Number.isFinite(weight) && weight > 0 && weight <= 1,
+    )
+    .sort((a, b) => b.weight - a.weight || a.index - b.index);
+  return (
+    (languages.find(({ tag }) => tag === "ru" || tag === "en")
+      ?.tag as Locale) || "en"
+  );
+}
+
+export function resolveLocale(
+  preference: string | undefined,
+  acceptLanguage: string | null,
+): Locale {
+  return preference === "en" || preference === "ru"
+    ? preference
+    : detectLocale(acceptLanguage);
+}
+
+export function translator(locale: Locale) {
+  return (message: string, values?: Record<string, string | number>) => {
+    const translated =
+      locale === "ru"
+        ? ((russian as Record<string, string>)[message] ?? message)
+        : message;
+    return values
+      ? translated.replace(/\{(\w+)\}/g, (match, key) =>
+          String(values[key] ?? match),
+        )
+      : translated;
+  };
+}
+
+export function statusMessage(status: string) {
+  const labels: Record<string, string> = {
+    draft: "Draft",
+    uploading: "Uploading",
+    processing: "Processing",
+    review: "Awaiting review",
+    published: "Published",
+    failed: "Failed",
+    rejected: "Rejected",
+    submitted: "Submitted",
+    accepted: "Accepted",
+    queued: "Queued",
+    running: "In progress",
+    open: "Open",
+    approved: "Approved",
+    closed: "Closed",
+    withdrawn: "Withdrawn",
+  };
+  return labels[status] ?? status;
+}