"use server";

import { revalidatePath } from "next/cache";

import { createStableId } from "@/lib/password";
import { requireAdminAccess } from "@/lib/session";
import {
  getSubscriptionSettings,
  saveProxyGroups,
  saveSubscriptionSettings,
} from "@/lib/store";

export async function saveSubscriptionSettingsAction(formData: FormData) {
  await requireAdminAccess();

  await saveSubscriptionSettings({
    template: String(formData.get("template") ?? ""),
    extraProxyGroups: String(formData.get("extra_proxy_groups") ?? ""),
    profileName: String(formData.get("profile_name") ?? "").trim() || "FeieProxy",
  });

  revalidatePath("/admin/subscriptions");
}

export async function saveProxyGroupAction(formData: FormData) {
  await requireAdminAccess();

  const settings = await getSubscriptionSettings();
  const id = String(formData.get("id") ?? "").trim() || createStableId();
  const name = String(formData.get("name") ?? "").trim();
  const seen = new Set<string>();
  const memberSlugs = formData.getAll("member_slugs").flatMap((value) => {
    const slug = String(value).trim();
    if (!slug || seen.has(slug)) {
      return [];
    }

    seen.add(slug);
    return [slug];
  });

  if (!name) {
    return;
  }

  const nextGroup = {
    id,
    name,
    type: "select",
    memberSlugs,
  } as const;
  const existingIndex = settings.proxyGroups.findIndex((group) => group.id === id);
  const proxyGroups = [...settings.proxyGroups];

  if (existingIndex === -1) {
    proxyGroups.push(nextGroup);
  } else {
    proxyGroups[existingIndex] = nextGroup;
  }

  await saveProxyGroups(proxyGroups);
  revalidatePath("/admin/subscriptions");
}

export async function deleteProxyGroupAction(formData: FormData) {
  await requireAdminAccess();

  const settings = await getSubscriptionSettings();
  const id = String(formData.get("id") ?? "").trim();
  await saveProxyGroups(settings.proxyGroups.filter((group) => group.id !== id));
  revalidatePath("/admin/subscriptions");
}